{"id":792,"date":"2011-08-29T12:04:23","date_gmt":"2011-08-29T04:04:23","guid":{"rendered":"http:\/\/leybreeze.com\/blog\/?p=792"},"modified":"2011-09-15T12:06:03","modified_gmt":"2011-09-15T04:06:03","slug":"%e6%9e%84%e9%80%a0%e8%87%aa%e5%ae%9a%e4%b9%89%e7%bb%84%e4%bb%b6","status":"publish","type":"post","link":"http:\/\/leybreeze.com\/blog\/?p=792","title":{"rendered":"\u6784\u9020\u81ea\u5b9a\u4e49\u7ec4\u4ef6"},"content":{"rendered":"<p>Android\u63d0\u4f9b\u4e86\u4e00\u79cd\u9ad8\u7ea7\u800c\u5f3a\u5927\u7684\u81ea\u5b9a\u4e49\u6a21\u578b\u6765\u6784\u5efaUI\uff0c\u8fd9\u4e00\u6a21\u578b\u57fa\u4e8e\u5e03\u5c40\u7c7bView\u548cViewGroup\u6765\u5b9e\u73b0\u3002\u9996\u5148\uff0cAndroid\u5e73\u53f0\u5305\u542b\u4e86\u4e00\u7cfb\u5217\u7684\u9884\u6784\u5efaView\u548cViewGroup\u5b50\u7c7b\u2014\u2014\u88ab\u79f0\u4e3a\u63a7\u4ef6\uff08widget\uff09\u548c\u5e03\u5c40\uff08layout\uff09\u2014\u2014\u7528\u4ee5\u6784\u9020UI\u3002<\/p>\n<p>\u53ef\u7528\u7684\u63a7\u4ef6\u5305\u62ec\u4f46\u4e0d\u9650\u4e8eButton\u3001TextView\u3001EditText\u3001ListView\u3001CheckBox\u3001RadioButton\u3001Gallery\u3001Spinner\u53ca\u4e00\u4e9b\u7279\u6b8a\u7528\u9014\u7684AutoCompleteTextView\u3001ImageSwitcher\u548cTextSwitecher\u3002<\/p>\n<p>\u53ef\u7528\u7684\u5e03\u5c40\u5305\u62ecLinearLayout\u3001FrameLayout\u3001RelativeLayout\u7b49\u3002\u8303\u4f8b\u8bf7\u53c2\u89c1\u201c<a title=\"\u5e38\u89c1\u5e03\u5c40\u5bf9\u8c61\" href=\"http:\/\/leybreeze.com\/blog\/?p=398\">\u5e38\u89c1\u5e03\u5c40\u5bf9\u8c61<\/a>\u201d\u3002<\/p>\n<p>\u5982\u679c\u9884\u6784\u5efa\u7684\u63a7\u4ef6\u6216\u5e03\u5c40\u65e0\u6cd5\u6ee1\u8db3\u9700\u8981\uff0c\u53ef\u4ee5\u521b\u5efa\u81ea\u6709\u7684View\u5b50\u7c7b\u3002\u5982\u679c\u53ea\u662f\u8981\u5bf9\u73b0\u6709\u7684\u63a7\u4ef6\u6216\u5e03\u5c40\u4f5c\u5c0f\u8c03\u6574\uff0c\u53ef\u4ee5\u7ee7\u627f\u8be5\u63a7\u4ef6\u6216\u5e03\u5c40\u5e76\u8986\u76d6\u5176\u65b9\u6cd5\u3002<\/p>\n<p>\u901a\u8fc7\u521b\u5efa\u81ea\u6709\u7684View\u5b50\u7c7b\uff0c\u5c06\u53ef\u4ee5\u5bf9\u4e8e\u5c4f\u5e55\u5143\u7d20\u7684\u5916\u89c2\u548c\u529f\u80fd\u8fdb\u884c\u7cbe\u786e\u63a7\u5236\u3002\u8981\u4e86\u89e3\u80fd\u591f\u5bf9\u81ea\u5b9a\u4e49\u89c6\u56fe\u8fdb\u884c\u54ea\u4e9b\u63a7\u5236\uff0c\u53ef\u4ee5\u53c2\u8003\u4e0b\u9762\u7684\u4f8b\u5b50\uff1a<\/p>\n<ul>\n<li>\u53ef\u4ee5\u521b\u5efa\u4e00\u4e2a\u5b8c\u5168\u81ea\u5b9a\u4e49\u6e32\u67d3\u7684View\u7c7b\u578b\uff0c\u4f8b\u5982\u4f7f\u75282D\u56fe\u50cf\u6e32\u67d3\u7684\u6709\u4e9b\u7c7b\u4f3c\u4e8e\u6a21\u62df\u7535\u8def\u63a7\u5236\u7684\u201c\u97f3\u91cf\u63a7\u5236\u201d\u6309\u952e\u3002\uff08\u81ea\u5df1\u4e5f\u4e0d\u592a\u6e05\u695aanalog electronic control\u662f\u4ec0\u4e48\uff0c\u603b\u4e4b\u8fd9\u4e2a\u4f8b\u5b50\u662f\u8bf4\u53ef\u4ee5\u81ea\u5b9a\u4e49\u6309\u952e\u7684\u5916\u89c2\uff09<\/li>\n<li>\u53ef\u4ee5\u5c06\u4e00\u7ec4View\u7ec4\u4ef6\u7ed3\u5408\u4e3a\u4e00\u4e2a\u65b0\u7684\u5355\u72ec\u7684\u7ec4\u4ef6\uff0c\u6bd4\u5982\u7c7b\u4f3c\u4e8eComboBox\uff08\u4e00\u79cd\u5f39\u51fa\u5f0f\u5217\u8868\u548c\u6587\u672c\u8f93\u5165\u680f\u7684\u7ed3\u5408\u4f53\uff09\u7684\u4e1c\u897f\uff0c\u6216\u662f\u53cc\u680f\u9009\u62e9\u5668\uff08\u4e00\u79cd\u6709\u5de6\u53f3\u4e24\u680f\u7684\u5217\u8868\uff0c\u53ef\u4ee5\u91cd\u65b0\u5206\u914d\u5176\u4e2d\u7684\u67d0\u4e2a\u9879\u76ee\u5e94\u8be5\u5c5e\u4e8e\u54ea\u4e00\u680f\uff09\uff0c\u7b49\u7b49\u3002<\/li>\n<li>\u53ef\u4ee5\u8986\u76d6EditText\u7ec4\u4ef6\u5728\u5c4f\u5e55\u4e0a\u7684\u6e32\u67d3\u65b9\u5f0f\uff08Notepad\u6559\u7a0b\u4e2d\u901a\u8fc7\u8fd9\u79cd\u65b9\u5f0f\u521b\u5efa\u4e86\u5177\u6709\u5212\u7ebf\u7684\u8bb0\u4e8b\u672c\u9875\u9762\uff0c\u53d6\u5f97\u4e86\u826f\u597d\u6548\u679c\uff09<\/li>\n<li>\u53ef\u4ee5\u6355\u6349\u4f8b\u5982\u6309\u952e\u7b49\u7684\u5176\u4ed6\u4e8b\u4ef6\u5e76\u4ee5\u81ea\u5b9a\u4e49\u65b9\u5f0f\u5904\u7406\u5b83\u4eec\uff08\u4f8b\u5982\u5728\u6e38\u620f\u4e2d\uff09\u3002<\/li>\n<\/ul>\n<p>\u4e0b\u9762\u7684\u5c0f\u8282\u9610\u8ff0\u4e86\u5982\u4f55\u521b\u5efa\u81ea\u5b9a\u4e49View\u5e76\u5c06\u5176\u7528\u4e8e\u7a0b\u5e8f\u4e4b\u4e2d\u3002\u66f4\u4e3a\u8be6\u7ec6\u7684\u53c2\u8003\u4fe1\u606f\uff0c\u8bf7\u53c2\u89c1View\u7c7b\u3002<\/p>\n<h3><strong>\u57fa\u672c\u65b9\u5f0f<\/strong><\/h3>\n<p>\u8fd9\u91cc\u662f\u5bf9\u8981\u521b\u5efa\u81ea\u6709View\u7ec4\u4ef6\u6240\u9700\u4e86\u89e3\u7684\u5185\u5bb9\u7684\u4e00\u4e2a\u9ad8\u5ea6\u9884\u89c8\uff1a<\/p>\n<ul>\n<li>\u00a0\u7528\u81ea\u6709\u7c7b\u7ee7\u627f\u4e00\u4e2aView\u7c7b\u6216\u5176\u5b50\u7c7b\u3002<\/li>\n<li>\u8986\u76d6\u5176\u4e2d\u7684\u4e00\u4e9b\u65b9\u6cd5\u3002\u9700\u8981\u8986\u76d6\u7684\u662f\u90a3\u4e9b\u7236\u7c7b\u4e2d\u4ee5\u201con\u201d\u5f00\u5934\u7684\u65b9\u6cd5\uff0c\u4f8b\u5982\uff0conDraw()\uff0conMeasure()\u548conKeyDown()\u3002\u8fd9\u548c\u5728Activity\u6216\u662fListActivity\u4e2d\u8986\u76d6\u90a3\u4e9b\u548c\u751f\u547d\u5468\u671f\u4e0e\u529f\u80fd\u76f8\u5173on&#8230;\u4e8b\u4ef6\u76f8\u7c7b\u4f3c\u3002<\/li>\n<li>\u4f7f\u7528\u8be5\u65b0\u7c7b\u3002\u4e00\u65e6\u5b8c\u6210\uff0c\u81ea\u6709\u7684\u65b0\u7c7b\u53ef\u4ee5\u88ab\u7528\u4e8e\u5176\u7236\u7c7b\u80fd\u88ab\u7528\u4e8e\u7684\u5730\u65b9\u3002<\/li>\n<\/ul>\n<p style=\"padding-left: 30px;\">\u00a0<strong>\u63d0\u793a<\/strong>\uff1a\u7ee7\u627f\u7684\u7c7b\u53ef\u4ee5\u5728\u4f7f\u7528\u5b83\u4eec\u7684\u6d3b\u52a8\u4e2d\u88ab\u5b9a\u4e49\u3002\u8fd9\u6837\u5c31\u9650\u5236\u4e86\u5bf9\u5176\u4e0d\u5fc5\u8981\u7684\u4f7f\u7528\uff0c\u5f88\u6709\u7528\uff08\u56e0\u4e3a\u53ef\u80fd\u4f1a\u4e3a\u4e86\u66f4\u5e7f\u6cdb\u7684\u7528\u9014\u800c\u9700\u8981\u5728\u7a0b\u5e8f\u4e2d\u521b\u5efa\u53e6\u4e00\u4e2a\u65b0\u7684\u516c\u7528View\uff09\u3002<\/p>\n<h3>\u00a0<strong>\u5b8c\u5168\u81ea\u5b9a\u4e49\u7684\u7ec4\u4ef6<\/strong><\/h3>\n<p>\u5b8c\u5168\u81ea\u5b9a\u4e49\u7684\u7ec4\u4ef6\u53ef\u4ee5\u88ab\u7528\u6765\u521b\u5efa\u4efb\u4f55\u5e0c\u671b\u5448\u73b0\u7684\u56fe\u5f62\u7ec4\u4ef6\u3002\u4e5f\u8bb8\u662f\u4e00\u4e2a\u770b\u8d77\u6765\u50cf\u662f\u8001\u5f0f\u7c7b\u6bd4\u6307\u793a\u6761\u7684\u97f3\u91cf\u6307\u793a\u5668\uff0c\u6216\u662f\u5361\u62c9OK\u673a\u4e0a\u5531\u6b4c\u65f6\u4f1a\u6709\u4e00\u4e2a\u968f\u7740\u6b4c\u66f2\u7684\u8fdb\u5ea6\u5f39\u8df3\u7740\u7684\u5c0f\u7403\u7684\u4e00\u957f\u6761\u7684\u6587\u672c\u89c6\u56fe\u3002\u603b\u4e4b\uff0c\u6709\u65f6\u65e0\u8bba\u600e\u6837\u7ec4\u5408\u9884\u7f6e\u7ec4\u4ef6\u4e5f\u65e0\u6cd5\u8fbe\u5230\u67d0\u79cd\u6548\u679c\uff0c\u56e0\u800c\u9700\u8981\u53e6\u5916\u7684\u81ea\u5b9a\u4e49\u7ec4\u4ef6\u3002<\/p>\n<p>\u5e78\u8fd0\u5730\uff0c\u53ef\u4ee5\u8f7b\u677e\u5730\u521b\u5efa\u5177\u6709\u6240\u5e0c\u671b\u7684\u5916\u89c2\u548c\u884c\u4e3a\u7684\u7ec4\u4ef6\uff0c\u4ec5\u6709\u7684\u9650\u5236\u53ea\u662f\u60f3\u8c61\u529b\uff0c\u5c4f\u5e55\u5c3a\u5bf8\uff0c\u53ef\u7528\u7684\u5904\u7406\u5668\u80fd\u529b\uff08\u8981\u8bb0\u5f97\u6700\u7ec8\u7a0b\u5e8f\u4e0d\u5f97\u4e0d\u8fd0\u884c\u4e8e\u6bd4\u684c\u9762\u5de5\u4f5c\u7ad9\u6027\u80fd\u5f31\u5f88\u591a\u7684\u8bbe\u5907\u4e0a\uff09\u3002<\/p>\n<p>\u8981\u521b\u5efa\u4e00\u4e2a\u5b8c\u5168\u81ea\u5b9a\u4e49\u7684\u7ec4\u4ef6\uff1a<\/p>\n<ol>\n<li>\u4e5f\u8bb8\u6709\u4e9b\u51fa\u4e4e\u610f\u6599\uff0c\u901a\u5e38\u8981\u7ee7\u627f\u7684\u89c6\u56fe\u6b63\u662fView\uff0c\u56e0\u6b64\u521b\u5efa\u65b0\u7684\u7ec4\u4ef6\u5f80\u5f80\u4ee5\u7ee7\u627fView\u7c7b\u5f00\u59cb\u3002<\/li>\n<li>\u53ef\u4ee5\u63d0\u4f9b\u4e00\u4e2a\u6784\u9020\u51fd\u6570\u4ee5\u4eceXML\u4e2d\u83b7\u53d6\u5c5e\u6027\u548c\u53c2\u6570\uff0c\u4e5f\u53ef\u4ee5\u81ea\u5df1\u5b9a\u4e49\u8fd9\u4e9b\u5c5e\u6027\u548c\u53c2\u6570\uff08\u6bd4\u5982\u97f3\u91cf\u6307\u793a\u5668\u7684\u8272\u5f69\u548c\u8303\u56f4\uff0c\u6307\u9488\u7684\u5bbd\u5ea6\u548c\u963b\u5c3c\u7b49\u3002\uff09<\/li>\n<li>\u6709\u53ef\u80fd\u9700\u8981\u4e3a\u8be5\u7ec4\u4ef6\u521b\u5efa\u81ea\u6709\u7684\u4e8b\u4ef6\u76d1\u542c\u5668\uff0c\u5c5e\u6027\u7ee7\u627f\u5668\u548c\u4fee\u6539\u5668\uff0c\u6216\u662f\u5176\u4ed6\u66f4\u4e3a\u6df1\u5165\u7684\u529f\u80fd\u3002<\/li>\n<li>\u901a\u5e38\u90fd\u9700\u8981\u8986\u76d6<span style=\"color: #008000;\">onMeasure()<\/span>\u65b9\u6cd5\uff0c\u5982\u679c\u5e0c\u671b\u7ec4\u4ef6\u663e\u793a\u5185\u5bb9\uff0c\u5e38\u5e38<span style=\"color: #008000;\">onDraw()<\/span>\u65b9\u6cd5\u4e5f\u8981\u8986\u76d6\u3002\u8fd9\u4e24\u8005\u90fd\u5177\u6709\u5176\u9ed8\u8ba4\u884c\u4e3a\uff0c\u9ed8\u8ba4\u6765\u8bf4<span style=\"color: #008000;\">onDraw()<\/span>\u4ec0\u4e48\u4e5f\u4e0d\u505a\uff0c\u800c<span style=\"color: #008000;\">onMeasure()<\/span>\u5219\u603b\u662f\u8bbe\u7f6e\u5c3a\u5bf8\u4e3a100&#215;100\u2014\u2014\u8fd9\u53ef\u80fd\u4e0d\u662f\u6240\u5e0c\u671b\u7684\u5c5e\u6027\u3002<\/li>\n<li>\u5982\u6709\u9700\u8981\u5176\u4ed6\u7684<span style=\"color: #008000;\">on&#8230;<\/span>\u65b9\u6cd5\u4e5f\u5e94\u8be5\u88ab\u8986\u76d6\u3002<\/li>\n<\/ol>\n<h3><strong>\u00a0\u7ee7\u627fonDraw()\u548conMeasure()<\/strong><\/h3>\n<p><span style=\"color: #008000;\">onDraw()<\/span>\u65b9\u6cd5\u5c06\u4f20\u9012\u4e00\u4e2aCanvas\uff0c\u5728\u8be5Canvas\u4e0a\u53ef\u4ee5\u5b9e\u73b0\u4efb\u4f55\u6240\u9700\u5185\u5bb9\uff1a2D\u56fe\u5f62\u3001\u5176\u4ed6\u81ea\u5b9a\u4e49\u7ec4\u4ef6\u3001\u4e2a\u6027\u5316\u7684\u6587\u672c\u5185\u5bb9\u6216\u5176\u4ed6\u6240\u80fd\u60f3\u5230\u7684\u3002<\/p>\n<p style=\"padding-left: 30px;\"><strong>\u6ce8\u610f<\/strong>\uff1a\u8fd9\u5e76\u4e0d\u9002\u7528\u4e8e3D\u56fe\u5f62\u3002\u5982\u679c\u5e0c\u671b\u4f7f\u75283D\u56fe\u5f62\uff0c\u5fc5\u987b\u7ee7\u627fSurfaceView\u800c\u4e0d\u662fView\uff0c\u5e76\u5728\u53e6\u4e00\u4e2a\u7ebf\u7a0b\u4e2d\u7ed8\u5236\u3002\u53c2\u89c1GLSurfaceViewActivity\u8303\u4f8b\u4ee5\u4e86\u89e3\u66f4\u591a\u3002<\/p>\n<p><span style=\"color: #008000;\">onMeasure()<\/span>\u5219\u7a0d\u5fae\u590d\u6742\u4e00\u4e9b\u3002<span style=\"color: #008000;\">onMeasure()<\/span>\u662f\u7ec4\u4ef6\u4e0e\u5176\u5bb9\u5668\u4e4b\u95f4\u7684\u4e00\u79cd\u6e32\u67d3\u7ea6\u675f\u3002\u5b83\u5e94\u8be5\u88ab\u8986\u76d6\u4ee5\u9ad8\u6548\u800c\u51c6\u786e\u5730\u62a5\u544a\u5176\u6240\u5305\u542b\u5185\u5bb9\u7684\u5c3a\u5bf8\u5ea6\u91cf\u3002\u7531\u4e8e\u5176\u7236\u7ea7\uff08\u5b83\u88ab\u4f20\u9012\u7ed9<span style=\"color: #008000;\">onMeasure()<\/span>\u65b9\u6cd5\uff09\u9650\u5236\u7684\u8981\u6c42\uff0c\u53c8\u7531\u4e8e\u4e00\u65e6\u5b8c\u6210\u8ba1\u7b97\u540e\u9700\u8981\u4ee5\u6d4b\u91cf\u7684\u5bbd\u5ea6\u548c\u9ad8\u5ea6\u6765\u8c03\u7528<span style=\"color: #008000;\">setMeasuredDimension()<\/span>\uff0c\u6574\u4ef6\u4e8b\u53d8\u5f97\u6709\u4e9b\u590d\u6742\u3002\u5982\u679c\u6ca1\u80fd\u901a\u8fc7\u4e00\u4e2a\u88ab\u8986\u76d6\u7684<span style=\"color: #008000;\">onMeasure()<\/span>\u65b9\u6cd5\u6765\u8c03\u7528\u5b83\u7684\u8bdd\uff0c\u7ed3\u679c\u5c06\u4f1a\u662f\u5728\u6d4b\u91cf\u65f6\u629b\u51fa\u4e00\u4e2a\u4f8b\u5916\u3002<\/p>\n<p>\u4ece\u6574\u4f53\u4e0a\u6765\u770b\uff0c\u5b9e\u73b0<span style=\"color: #008000;\">onMeasure()<\/span>\u5927\u81f4\u662f\u8fd9\u6837\u7684\uff1a<\/p>\n<ol>\n<li>\u88ab\u8986\u76d6\u7684<span style=\"color: #008000;\">onMeasure()<\/span>\u65b9\u6cd5\u88ab\u4ee5\u5bbd\u5ea6\u548c\u9ad8\u5ea6\u7684\u6d4b\u91cf\u503c\uff08\u5373<span style=\"color: #008000;\">widthMeasureSpec<\/span>\u4ee5\u53ca<span style=\"color: #008000;\">heightMeasureSpec<\/span>\u53c2\u6570\uff0c\u5b83\u4eec\u90fd\u662f\u7528\u6765\u8868\u793a\u7ef4\u5ea6\u7684\u6574\u578b\u503c\uff09\u8c03\u7528\uff0c\u8fd9\u662f\u5bf9\u4e8e\u8981\u5904\u7406\u7684\u5bbd\u5ea6\u548c\u9ad8\u5ea6\u7684\u6d4b\u91cf\u503c\u7684\u4e00\u79cd\u9650\u5236\u3002\u8fd9\u4e9b\u53c2\u6570\u80fd\u591f\u8981\u6c42\u7684\u6240\u6709\u9650\u5236\u7684\u53c2\u8003\u8d44\u6599\u8bf7\u89c1View.onMeasure(int, int)\u76f8\u5173\u7684\u6587\u6863\uff08\u8be5\u53c2\u8003\u6587\u6863\u540c\u65f6\u5f88\u597d\u7684\u89e3\u91ca\u4e86\u6574\u4e2a\u6d4b\u91cf\u64cd\u4f5c\uff09\u3002<\/li>\n<li>\u7ec4\u4ef6\u7684<span style=\"color: #008000;\">onMeasure()<\/span>\u65b9\u6cd5\u5e94\u5f53\u8ba1\u7b97\u51fa\u6e32\u67d3\u8be5\u7ec4\u4ef6\u6240\u9700\u7684\u5bbd\u5ea6\u548c\u9ad8\u5ea6\u7684\u6d4b\u91cf\u503c\u3002\u5b83\u901a\u5e38\u5e94\u5f53\u548c\u4f20\u5165\u7684\u53c2\u6570\u76f8\u5339\u914d\uff0c\u4e0d\u8fc7\u6709\u65f6\u4e5f\u53ef\u4ee5\u9009\u62e9\u6269\u5927\uff08\u8fd9\u65f6\uff0c\u7236\u7c7b\u53ef\u4ee5\u6839\u636e\u4e0d\u540c\u7684\u6d4b\u91cf\u503c\u9009\u62e9\u5305\u62ec\u5207\u5272\u3001\u6eda\u52a8\u3001\u629b\u51fa\u4f8b\u5916\u6216\u8bf7\u6c42<span style=\"color: #008000;\">onMeasure()<\/span>\u91cd\u8bd5\u7b49\u4e00\u7cfb\u5217\u64cd\u4f5c\u3002\uff09<\/li>\n<li>\u4e00\u65e6\u5bbd\u5ea6\u548c\u9ad8\u5ea6\u88ab\u8ba1\u7b97\u51fa\u6765\uff0c\u5c31\u5fc5\u987b\u4ee5\u5b83\u4eec\u53bb\u8c03\u7528<span style=\"color: #008000;\">setMeasuredDimension(int width, int height)<\/span>\u3002\u5426\u5219\u5c06\u5bfc\u81f4\u629b\u51fa\u4f8b\u5916\u3002<\/li>\n<\/ol>\n<p>\u4e0b\u9762\u662f\u5173\u4e8e\u89c6\u56fe\u7684\u6846\u67b6\u53ef\u80fd\u8c03\u7528\u7684\u5176\u4ed6\u6807\u51c6\u65b9\u6cd5\u7684\u4e00\u4e9b\u603b\u7ed3\uff1a<\/p>\n<table width=\"85%\" border=\"2\" cellpadding=\"5\" align=\"center\">\n<thead>\n<tr>\n<th>\u7c7b\u522b<\/th>\n<th>\u65b9\u6cd5<\/th>\n<th>\u63cf\u8ff0<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td rowspan=\"2\">\u521b\u5efa<\/td>\n<td>\u6784\u9020\u51fd\u6570<\/td>\n<td>\u5728\u901a\u8fc7\u4ee3\u7801\u521b\u5efa\u89c6\u56fe\u65f6\u548c\u5728\u89c6\u56fe\u901a\u8fc7\u5e03\u5c40\u6587\u4ef6\u751f\u6210\u65f6\u90fd\u4f1a\u9700\u8981\u4e00\u4e9b\u6784\u9020\u51fd\u6570\u3002\u7b2c\u4e8c\u79cd\u60c5\u51b5\u4e0b\u5e03\u5c40\u6587\u4ef6\u4e2d\u5b9a\u4e49\u7684\u4efb\u4f55\u5c5e\u6027\u90fd\u9700\u8981\u88ab\u8bfb\u53d6\u5e76\u5e94\u7528\u3002<\/td>\n<\/tr>\n<tr>\n<td><code><code><a href=\"http:\/\/developer.android.com\/reference\/android\/view\/View.html#onFinishInflate()\">onFinishInflate()<\/a><\/code><\/code><\/td>\n<td>\u5f53\u4e00\u4e2a\u89c6\u56fe\u53ca\u5176\u6240\u6709\u5b50\u89c6\u56fe\u90fd\u901a\u8fc7XML\u751f\u6210\u540e\u88ab\u8c03\u7528\u3002<\/td>\n<\/tr>\n<tr>\n<td rowspan=\"3\">\u5e03\u5c40<\/td>\n<td><code><code><a href=\"http:\/\/developer.android.com\/reference\/android\/view\/View.html#onMeasure(int, int)\">onMeasure(int, int)<\/a><\/code><\/code><\/td>\n<td>\u8c03\u7528\u4ee5\u51b3\u5b9a\u8be5\u89c6\u56fe\u53ca\u5176\u6240\u6709\u5b50\u89c6\u56fe\u6240\u9700\u7684\u5c3a\u5bf8\u3002<\/td>\n<\/tr>\n<tr>\n<td><code><code><a href=\"http:\/\/developer.android.com\/reference\/android\/view\/View.html#onLayout(boolean, int, int, int, int)\">onLayout(boolean, int, int, int, int)<\/a><\/code><\/code><\/td>\n<td>\u5f53\u8be5\u89c6\u56fe\u9700\u8981\u6307\u5b9a\u5176\u6240\u6709\u5b50\u89c6\u56fe\u7684\u5c3a\u5bf8\u548c\u4f4d\u7f6e\u65f6\u88ab\u8c03\u7528\u3002<\/td>\n<\/tr>\n<tr>\n<td><code><code><a href=\"http:\/\/developer.android.com\/reference\/android\/view\/View.html#onSizeChanged(int, int, int, int)\">onSizeChanged(int, int, int, int)<\/a><\/code><\/code><\/td>\n<td>\u5f53\u8be5\u89c6\u56fe\u7684\u5c3a\u5bf8\u53d1\u751f\u53d8\u5316\u65f6\u88ab\u8c03\u7528\u3002<\/td>\n<\/tr>\n<tr>\n<td>\u7ed8\u5236<\/td>\n<td><code><code><a href=\"http:\/\/developer.android.com\/reference\/android\/view\/View.html#onDraw(android.graphics.Canvas)\">onDraw(Canvas)<\/a><\/code><\/code><\/td>\n<td>\u5f53\u8be5\u89c6\u56fe\u9700\u8981\u6e32\u67d3\u5176\u5185\u5bb9\u65f6\u88ab\u8c03\u7528\u3002<\/td>\n<\/tr>\n<tr>\n<td rowspan=\"4\">\u4e8b\u4ef6\u5904\u7406<\/td>\n<td><code><code><a href=\"http:\/\/developer.android.com\/reference\/android\/view\/View.html#onKeyDown(int, android.view.KeyEvent)\">onKeyDown(int, KeyEvent)<\/a><\/code><\/code><\/td>\n<td>\u5f53\u4e00\u4e2a\u65b0\u7684\u6309\u952e\u4e8b\u4ef6\u53d1\u751f\u65f6\u88ab\u8c03\u7528\u3002<\/td>\n<\/tr>\n<tr>\n<td><code><code><a href=\"http:\/\/developer.android.com\/reference\/android\/view\/View.html#onKeyUp(int, android.view.KeyEvent)\">onKeyUp(int, KeyEvent)<\/a><\/code><\/code><\/td>\n<td>\u5f53\u4e00\u4e2a\u6309\u952e\u91ca\u653e\u4e8b\u4ef6\u53d1\u751f\u65f6\u88ab\u8c03\u7528\u3002<\/td>\n<\/tr>\n<tr>\n<td><code><code><a href=\"http:\/\/developer.android.com\/reference\/android\/view\/View.html#onTrackballEvent(android.view.MotionEvent)\">onTrackballEvent(MotionEvent)<\/a><\/code><\/code><\/td>\n<td>\u5f53\u4e00\u4e2a\u8f68\u8ff9\u7403\u79fb\u52a8\u4e8b\u4ef6\u53d1\u751f\u65f6\u88ab\u8c03\u7528\u3002<\/td>\n<\/tr>\n<tr>\n<td><code><code><a href=\"http:\/\/developer.android.com\/reference\/android\/view\/View.html#onTouchEvent(android.view.MotionEvent)\">onTouchEvent(MotionEvent)<\/a><\/code><\/code><\/td>\n<td>\u5f53\u4e00\u4e2a\u89e6\u6478\u5c4f\u52a8\u4f5c\u4e8b\u4ef6\u53d1\u751f\u65f6\u88ab\u8c03\u7528\u3002<\/td>\n<\/tr>\n<tr>\n<td rowspan=\"2\">\u7126\u70b9<\/td>\n<td><code><code><a href=\"http:\/\/developer.android.com\/reference\/android\/view\/View.html#onFocusChanged(boolean, int, android.graphics.Rect)\">onFocusChanged(boolean, int, Rect)<\/a><\/code><\/code><\/td>\n<td>\u5f53\u89c6\u56fe\u83b7\u5f97\u6216\u662f\u5931\u53bb\u7126\u70b9\u65f6\u88ab\u8c03\u7528\u3002<\/td>\n<\/tr>\n<tr>\n<td><code><code><a href=\"http:\/\/developer.android.com\/reference\/android\/view\/View.html#onWindowFocusChanged(boolean)\">onWindowFocusChanged(boolean)<\/a><\/code><\/code><\/td>\n<td>\u5f53\u5305\u542b\u4e86\u8be5\u89c6\u56fe\u7684\u7a97\u53e3\u83b7\u5f97\u6216\u662f\u5931\u53bb\u7126\u70b9\u65f6\u88ab\u8c03\u7528\u3002<\/td>\n<\/tr>\n<tr>\n<td rowspan=\"3\">\u5173\u8054\uff08Attaching\uff09<\/td>\n<td><code><code><a href=\"http:\/\/developer.android.com\/reference\/android\/view\/View.html#onAttachedToWindow()\">onAttachedToWindow()<\/a><\/code><\/code><\/td>\n<td>\u5f53\u8be5\u89c6\u56fe\u4e0e\u4e00\u4e2a\u7a97\u53e3\u76f8\u5173\u8054\u540e\u88ab\u8c03\u7528\u3002<\/td>\n<\/tr>\n<tr>\n<td><code><code><a href=\"http:\/\/developer.android.com\/reference\/android\/view\/View.html#onDetachedFromWindow()\">onDetachedFromWindow()<\/a><\/code><\/code><\/td>\n<td>\u5f53\u8be5\u89c6\u56fe\u4e0e\u7a97\u53e3\u63a5\u89e6\u5173\u8054\u540e\u88ab\u8c03\u7528\u3002<\/td>\n<\/tr>\n<tr>\n<td><code><code><a href=\"http:\/\/developer.android.com\/reference\/android\/view\/View.html#onWindowVisibilityChanged(int)\">onWindowVisibilityChanged(int)<\/a><\/code><\/code><\/td>\n<td>\u5f53\u5305\u542b\u4e86\u8be5\u89c6\u56fe\u7684\u7a97\u53e3\u7684\u53ef\u89c1\u6027\u53d1\u751f\u6539\u53d8\u65f6\u88ab\u8c03\u7528\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>\u00a0<strong>\u4e00\u4e2a\u81ea\u5b9a\u4e49\u89c6\u56fe\u7684\u8303\u4f8b<\/strong><\/h3>\n<p>\u5728API Demos\u4e2d\u7684CustomView\u8303\u4f8b\u63d0\u4f9b\u4e86\u4e00\u4e2a\u81ea\u5b9a\u4e49View\u7684\u8303\u4f8b\u3002\u8be5\u81ea\u5b9a\u4e49View\u88ab\u5b9a\u4e49\u5728LabelView\u7c7b\u4e2d\u3002<\/p>\n<p>\u8fd9\u4e2aLabelView\u8303\u4f8b\u5bf9\u81ea\u5b9a\u4e49\u7ec4\u4ef6\u7684\u5404\u65b9\u9762\u8fdb\u884c\u4e86\u6f14\u793a\uff1a<\/p>\n<ul>\n<li>\u7ee7\u627fView\u7c7b\u6765\u521b\u5efa\u4e00\u4e2a\u5b8c\u5168\u81ea\u5b9a\u4e49\u7684\u7ec4\u4ef6\u3002<\/li>\n<li>\u652f\u6301\u53c2\u6570\u5e76\u53ef\u4ee5\u63a5\u53d7\u89c6\u56fe\u751f\u6210\u53c2\u6570\uff08\u5728XML\u4e2d\u5b9a\u4e49\u7684\u53c2\u6570\uff09\u7684\u6784\u9020\u51fd\u6570\u3002\u5176\u4e2d\u4e00\u4e9b\u53c2\u6570\u5c06\u88ab\u4f20\u9012\u81f3\u7236\u7c7bView\uff0c\u4e0d\u8fc7\u66f4\u91cd\u8981\u7684\u662f\uff0c\u4e00\u90e8\u5206\u53c2\u6570\u5c06\u88ab\u7528\u4e8e\u5728LabelView\u4e2d\u5b9a\u4e49\u7684\u5c5e\u6027\u3002<\/li>\n<li>\u4e00\u4e9b\u8be5\u6807\u7b7e\u7ec4\u4ef6\u6240\u9700\u7684\u6807\u51c6\u516c\u6709\u65b9\u6cd5\uff0c\u6bd4\u5982<span style=\"color: #008000;\">setText()<\/span>\uff0c<span style=\"color: #008000;\">setTextSize()<\/span>\uff0c<span style=\"color: #008000;\">setTextColor()<\/span>\u7b49\u7b49\u3002<\/li>\n<li>\u88ab\u8986\u76d6\u7684<span style=\"color: #008000;\">onMeasure()<\/span>\u65b9\u6cd5\u4ee5\u51b3\u5b9a\u5e76\u8bbe\u7f6e\u7ec4\u4ef6\u7684\u6e32\u67d3\u5c3a\u5bf8\u3002\uff08\u6ce8\u610f\u5728LabelView\u4e2d\uff0c\u5b9e\u9645\u7684\u5de5\u4f5c\u662f\u7531\u79c1\u6709\u7684<span style=\"color: #008000;\">measureWidth()<\/span>\u65b9\u6cd5\u5b8c\u6210\u7684\u3002\uff09<\/li>\n<li>\u88ab\u8986\u76d6\u7684<span style=\"color: #008000;\">onDraw()<\/span>\u65b9\u6cd5\u4ee5\u5c06\u6807\u7b7e\u7ed8\u5236\u4e8e\u6240\u63d0\u4f9b\u7684\u753b\u5e03\uff08canvas\uff09\u4e0a\u3002<\/li>\n<\/ul>\n<p>\u53ef\u4ee5\u5728\u8303\u4f8b\u4e2d\u7684custom_view_1.xml\u91cc\u770b\u5230\u4e00\u4e9bLaberView\u81ea\u5b9a\u4e49\u89c6\u56fe\u7684\u7528\u4f8b\u3002\u901a\u5e38\uff0c\u53ef\u4ee5\u770b\u5230<span style=\"color: #008000;\">android<\/span>: namespace\u53c2\u6570\u548c\u81ea\u5b9a\u4e49\u7684<span style=\"color: #008000;\">app<\/span>: namespace\u53c2\u6570\u88ab\u6df7\u5408\u4f7f\u7528\u3002<span style=\"color: #008000;\">app<\/span>: parameters\u662fLabelView\u8fdb\u884c\u7ec4\u7ec7\u5e76\u4f7f\u7528\u7684\u53c2\u6570\uff0c\u88ab\u5b9a\u4e49\u4e8e\u8be5\u8303\u4f8b\u7684R\u8d44\u6e90\u5b9a\u4e49\u7c7b\u4e2d\u7684\u98ce\u683c\u5316\u5185\u90e8\u7c7b\u4e2d\u3002<\/p>\n<h3><strong>\u590d\u5408\u63a7\u5236\u5668\uff08Compound Control\uff09<\/strong><\/h3>\n<p>\u5982\u679c\u4e0d\u60f3\u521b\u5efa\u4e00\u4e2a\u5b8c\u5168\u81ea\u5b9a\u4e49\u7684\u7ec4\u4ef6\uff0c\u800c\u662f\u5e0c\u671b\u5c06\u4e00\u4e9b\u53ef\u91cd\u7528\u7684\u7ec4\u4ef6\u7ec4\u5408\u5728\u4e00\u8d77\u4ee5\u83b7\u5f97\u4e00\u7ec4\u5df2\u5b58\u5728\u7684\u63a7\u5236\u529f\u80fd\u7684\u8bdd\uff0c\u5c31\u521b\u5efa\u4e00\u4e2a\u590d\u5408\u7ec4\u4ef6\uff08\u6216\u79f0\u4e3a\u590d\u5408\u63a7\u5236\u5668\uff09\u5427\u3002\u7b80\u8a00\u4e4b\uff0c\u5c31\u662f\u5c06\u4e00\u4e9b\u66f4\u4e3a\u57fa\u672c\u7684\u63a7\u5236\u5668\uff08\u6216\u662f\u89c6\u56fe\uff09\u88c5\u5165\u4e00\u4e2a\u903b\u8f91\u7ec4\u4f7f\u4e4b\u88ab\u770b\u4f5c\u4e3a\u662f\u4e00\u4e2a\u5355\u72ec\u7684\u7ec4\u4ef6\u3002\u4f8b\u5982\uff0c\u4e00\u4e2aCombo Box\u53ef\u4ee5\u88ab\u8ba4\u4e3a\u662f\u4e00\u6761\u5355\u72ec\u7684EditText\u57df\u52a0\u4e0a\u4e00\u4e2a\u5177\u6709\u5f39\u51fa\u5f0f\u5217\u8868\uff08PopupList\uff09\u7684\u8c03\u8282\u6309\u94ae\u3002\u5982\u679c\u6309\u4e0b\u6309\u94ae\u5e76\u4ece\u5217\u8868\u4e2d\u8fdb\u884c\u9009\u62e9\uff0c\u5c31\u4f1a\u5f39\u51fa\u4e00\u6761EditText\u57df\uff0c\u5f53\u7136\u7528\u6237\u4e5f\u53ef\u4ee5\u76f4\u63a5\u5728EditText\u4e2d\u952e\u5165\u4e00\u4e9b\u5185\u5bb9\u3002<\/p>\n<p>\u5728Android\u4e2d\uff0c\u5176\u5b9e\u5df2\u7ecf\u6709\u4e24\u79cdView\u53ef\u4ee5\u505a\u5230\u8fd9\u70b9\u4e86\uff1aSpinner\u548cAutoCompleteTextView\uff0c\u4e0d\u8fc7Combo Box\u7684\u6982\u5ff5\u8fd8\u662f\u53ef\u4ee5\u7528\u6765\u505a\u4e3a\u4e00\u4e2a\u7b80\u5355\u6613\u61c2\u7684\u8303\u4f8b\u7684\u3002<\/p>\n<p>\u8981\u521b\u5efa\u4e00\u4e2a\u590d\u5408\u7ec4\u4ef6\uff1a<\/p>\n<ol>\n<li>\u8fd9\u901a\u5e38\u662f\u4ece\u67d0\u79cd\u7c7b\u578b\u7684Layout\u5f00\u59cb\uff0c\u6240\u4ee5\u9700\u8981\u521b\u5efa\u4e00\u4e2a\u7ee7\u627f\u4e86\u67d0\u79cdLayout\u7684\u7c7b\u3002\u5728Combo box\u7684\u4f8b\u5b50\u4e2d\u6216\u8bb8\u5e94\u8be5\u4f7f\u7528\u4e00\u4e2a\u6c34\u5e73\u65b9\u5411\u7684LinearLayout\u3002\u8bf7\u8bb0\u5f97\u5176\u4ed6\u7684\u5e03\u5c40\u662f\u53ef\u4ee5\u5d4c\u5957\u4e8e\u5176\u4e2d\u7684\uff0c\u6240\u4ee5\u590d\u5408\u7ec4\u4ef6\u53ef\u4ee5\u505a\u5f97\u76f8\u5f53\u5730\u7ed3\u6784\u590d\u6742\u3002\u9700\u8981\u6ce8\u610f\u7684\u662f\u8fd8\u53ef\u4ee5\u50cfActivity\u6240\u4f7f\u7528\u7684\u90a3\u79cd\u65b9\u5f0f\u4e00\u6837\u901a\u8fc7\u58f0\u660e\u5f0f\uff08\u57fa\u4e8eXML\uff09\u7684\u65b9\u5f0f\u6765\u521b\u5efa\u6240\u5305\u542b\u7684\u7ec4\u4ef6\uff0c\u6216\u662f\u5728\u4ee3\u7801\u4e2d\u5bf9\u5176\u8fdb\u884c\u5d4c\u5957\u3002<\/li>\n<li>\u5728\u65b0\u7c7b\u7684\u6784\u9020\u51fd\u6570\u4e2d\uff0c\u83b7\u53d6\u7236\u7c7b\u6240\u9700\u7684\u6240\u6709\u53c2\u6570\uff0c\u5e76\u9996\u5148\u5c06\u5176\u4f20\u9012\u7ed9\u7236\u7c7b\u7684\u6784\u9020\u51fd\u6570\u3002\u4e4b\u540e\u53ef\u4ee5\u8bbe\u7f6e\u5176\u4ed6\u5728\u65b0\u7684\u7ec4\u4ef6\u4e2d\u6240\u8981\u4f7f\u7528\u7684\u89c6\u56fe\uff1b\u5728\u8fd9\u91cc\u5c06\u521b\u5efaEditText\u57df\u548cPopupList\u3002\u8bf7\u6ce8\u610f\u53ef\u80fd\u8fd8\u9700\u8981\u5411XML\u5f15\u5165\u4e00\u4e9b\u81ea\u6709\u5c5e\u6027\u548c\u53c2\u6570\u7528\u4ee5\u88ab\u63d0\u53d6\u5e76\u4f7f\u7528\u4e8e\u6784\u9020\u51fd\u6570\u3002<\/li>\n<li>\u8fd8\u53ef\u4ee5\u4e3a\u6240\u5305\u542b\u7684\u89c6\u56fe\u53ef\u80fd\u4f1a\u89e6\u53d1\u7684\u4e8b\u4ef6\u521b\u5efa\u76d1\u542c\u5668\uff0c\u4f8b\u5982\uff0c\u4e00\u4e2a\u5f53\u8fdb\u884c\u4e86\u5217\u8868\u9009\u62e9\u540e\u5bf9EditText\u7684\u5185\u5bb9\u8fdb\u884c\u66f4\u65b0\u7684\u5217\u8868\u9879\u76ee\u70b9\u51fb\u76d1\u542c\u5668\uff08List Item Click Listener\uff09\u7684\u76d1\u542c\u5668\u65b9\u6cd5\u3002<\/li>\n<li>\u8fd8\u53ef\u4ee5\u901a\u8fc7\u8bbf\u95ee\u5668\uff08accessor\uff09\u548c\u4fee\u6539\u5668\uff08modifier\uff09\u521b\u5efa\u81ea\u6709\u7684\u5c5e\u6027\uff0c\u4f8b\u5982\uff0c\u5141\u8bb8EditText\u7684\u503c\u5728\u7ec4\u4ef6\u4e2d\u88ab\u521d\u59cb\u5316\u5e76\u5728\u9700\u8981\u65f6\u53ef\u4ee5\u67e5\u8be2\u83b7\u53d6\u5176\u5185\u5bb9\u3002<\/li>\n<li>\u5728\u7ee7\u627f\u4e00\u4e2aLayout\u65f6\uff0c\u4e0d\u5fc5\u8986\u76d6\u5176<span style=\"color: #008000;\">onDraw()<\/span>\u548c<span style=\"color: #008000;\">onMeasure()<\/span>\u65b9\u6cd5\uff0c\u56e0\u4e3a\u8be5\u5e03\u5c40\u7684\u9ed8\u8ba4\u884c\u4e3a\u5c31\u80fd\u5f88\u597d\u7684\u5b9e\u73b0\u6548\u679c\u3002\u4e0d\u8fc7\uff0c\u5982\u6709\u9700\u8981\u8fd8\u662f\u53ef\u4ee5\u5bf9\u5176\u8fdb\u884c\u8986\u76d6\u3002<\/li>\n<li>\u53ef\u4ee5\u8986\u76d6\u5176\u4ed6\u7684<span style=\"color: #008000;\">on&#8230;<\/span>\u65b9\u6cd5\uff0c\u4f8b\u5982<span style=\"color: #008000;\">onKeyDown()<\/span>\uff0c\u7528\u4e8e\u67d0\u4e2a\u952e\u88ab\u6309\u4e0b\u65f6\u4ece\u4e00\u4e2acombo box\u7684\u5f39\u51fa\u5217\u8868\u4e2d\u9009\u62e9\u67d0\u4e00\u4e2a\u9ed8\u8ba4\u503c\u3002<\/li>\n<\/ol>\n<p>\u603b\u4e4b\uff0c\u4f7f\u7528Layout\u4f5c\u4e3a\u81ea\u5b9a\u4e49\u63a7\u5236\u5668\u7684\u57fa\u7840\u5c06\u5e26\u6765\u4e00\u7cfb\u5217\u7684\u597d\u5904\uff0c\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>\u53ef\u4ee5\u901a\u8fc7\u548c\u6d3b\u52a8\u4e00\u6837\u7684\u58f0\u660e\u5f0f\u7684XML\u6587\u4ef6\u6765\u6307\u5b9a\u5e03\u5c40\uff0c\u6216\u662f\u53ef\u4ee5\u5728\u4ee3\u7801\u4e2d\u521b\u5efa\u89c6\u56fe\u5e76\u5c06\u5176\u5d4c\u5165\u5e03\u5c40\u4e2d\u3002<\/li>\n<li><span style=\"color: #008000;\">onDraw()<\/span>\u548c<span style=\"color: #008000;\">onMeasure()<\/span> \u65b9\u6cd5\uff08\u52a0\u4e0a\u5927\u90e8\u5206\u5176\u4ed6\u7684<span style=\"color: #008000;\">on&#8230;<\/span>\u65b9\u6cd5\uff09\u7684\u9ed8\u8ba4\u884c\u4e3a\u80fd\u6b63\u5e38\u5de5\u4f5c\u56e0\u800c\u4e0d\u5fc5\u8fdb\u884c\u8986\u76d6\u3002<\/li>\n<li>\u6700\u540e\uff0c\u53ef\u4ee5\u5f88\u5feb\u6377\u5730\u6784\u5efa\u975e\u5e38\u590d\u6742\u7684\u590d\u5408\u89c6\u56fe\u5e76\u91cd\u590d\u5229\u7528\u5b83\u4eec\u3002<\/li>\n<\/ul>\n<p><strong>\u590d\u5408\u63a7\u5236\u5668\u7684\u8303\u4f8b<\/strong><\/p>\n<p>\u5728SDK\u9644\u5e26\u7684API Demos\u9879\u76ee\u4e2d\uff0c\u6709\u4e24\u4e2aList\u8303\u4f8b\u2014\u2014Views\/Lists\u4e0b\u7684\u8303\u4f8b4\u548c\u8303\u4f8b6\u6f14\u793a\u4e86\u4e00\u4e2a\u7ee7\u627f\u4e86LinearLayout\u7684SpeechView\uff0c\u5b83\u6784\u5efa\u4e86\u4e00\u4e2a\u663e\u793aSpeech\u5f15\u7528\u7684\u7ec4\u4ef6\u3002\u8303\u4f8b\u4ee3\u7801\u4e2d\u6240\u7528\u7684\u76f8\u5173\u7684\u7c7b\u662f<span style=\"color: #008000;\">List4.java<\/span>\u548c<span style=\"color: #008000;\">List6.java<\/span>\u3002<\/p>\n<h3><strong>\u4fee\u6539\u4e00\u4e2a\u5df2\u6709\u7684View\u7c7b\u578b<\/strong><\/h3>\n<p>\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\u53ef\u4ee5\u7528\u4e00\u79cd\u66f4\u7b80\u5355\u7684\u521b\u5efa\u81ea\u5b9a\u4e49View\u7684\u65b9\u6cd5\u3002\u5982\u679c\u5df2\u7ecf\u6709\u4e86\u4e00\u4e2a\u548c\u6240\u5e0c\u671b\u521b\u5efa\u7684\u7ec4\u4ef6\u975e\u5e38\u76f8\u4f3c\u7684\u7ec4\u4ef6\uff0c\u53ef\u4ee5\u7ee7\u627f\u8be5\u7ec4\u4ef6\u5e76\u8986\u76d6\u90a3\u4e9b\u5e0c\u671b\u6539\u53d8\u7684\u884c\u4e3a\u3002\u53ef\u4ee5\u50cf\u5bf9\u5b8c\u5168\u81ea\u5b9a\u4e49\u7684\u7ec4\u4ef6\u90a3\u6837\u5bf9\u8fd9\u4e2a\u7ee7\u627f\u7684\u7ec4\u4ef6\u8fdb\u884c\u4efb\u4f55\u5904\u7406\uff0c\u53ea\u4e0d\u8fc7\u662f\u9700\u8981\u4eceView\u5c42\u7ea7\u4e2d\u4e00\u4e2a\u66f4\u4e3a\u7279\u6b8a\u5316\u7684\u7c7b\u5f00\u59cb\u7f62\u4e86\u3002\u4e0e\u6b64\u540c\u65f6\u8fd8\u53ef\u4ee5\u989d\u5916\u83b7\u5f97\u5176\u4ed6\u5f88\u591a\u6240\u9700\u8981\u7684\u529f\u80fd\u3002<\/p>\n<p>\u4f8b\u5982\uff0cSDK\u5728\u8303\u4f8b\u4e2d\u5305\u542b\u4e86\u4e00\u4e2aNotePad\u7a0b\u5e8f\u3002\u5b83\u6f14\u793a\u4e86\u4f7f\u7528Android\u5e73\u53f0\u7684\u8bb8\u591a\u65b9\u9762\uff0c\u5305\u62ec\u7ee7\u627f\u4e00\u4e2aEditText View\u6765\u5b9e\u73b0\u5e26\u6709\u5212\u7ebf\u7684\u8bb0\u4e8b\u672c\u3002\u8fd9\u5e76\u4e0d\u662f\u4e00\u4e2a\u5b8c\u7f8e\u7684\u8303\u4f8b\uff0c\u4e14\u5b9e\u73b0\u8fd9\u4e2a\u6548\u679c\u7684API\u76f8\u5bf9\u8fd9\u4e2a\u6bd4\u8f83\u65e9\u671f\u7684\u7248\u672c\u53ef\u80fd\u4f1a\u53d1\u751f\u6539\u53d8\uff0c\u4e0d\u8fc7\u5b83\u786e\u5b9e\u5c55\u793a\u4e86\u4e00\u4e9b\u4f7f\u7528\u539f\u5219\u3002<\/p>\n<p>\u5982\u679c\u8fd8\u6ca1\u6709\u5c1d\u8bd5\u8fc7\uff0c\u90a3\u5c31\u5c06NotePad\u8303\u4f8b\u5bfc\u5165\u5230Eclipse\uff08\u6216\u53ea\u662f\u67e5\u770b\u6240\u63d0\u4f9b\u7684\u94fe\u63a5\u4e2d\u7684\u6e90\u4ee3\u7801\uff09\u3002\u7279\u522b\u662f\u67e5\u770bNoteEditor.java\u6587\u4ef6\u4e2d<span style=\"color: #008000;\">MyEditText<\/span>\u7684\u5b9a\u4e49\u3002<\/p>\n<p>\u5176\u4e2d\u4e00\u4e9b\u8981\u70b9\u5982\u4e0b\u3002<\/p>\n<p>1.\u00a0<strong>\u5b9a\u4e49<\/strong><\/p>\n<p>\u8be5\u7c7b\u7531\u4ee5\u4e0b\u4ee3\u7801\u5b9a\u4e49\uff1a<\/p>\n<p><span style=\"color: #008000;\">public static class MyEditText extends EditText<\/span><\/p>\n<ul>\n<li>\u5b83\u88ab\u5b9a\u4e49\u4e3a<span style=\"color: #008000;\">NoteEditor<\/span>\u6d3b\u52a8\u7684\u4e00\u4e2a\u5185\u90e8\u7c7b\uff0c\u4e0d\u8fc7\u56e0\u4e3a\u5b83\u662f\u516c\u6709\u7684\u6240\u4ee5\u53ef\u4ee5\u5728\u9700\u8981\u65f6\u4ece<span style=\"color: #008000;\">NoteEditor<\/span>\u5916\u90e8\u4ee5<span style=\"color: #008000;\">NoteEditor.MyEditText<\/span>\u88ab\u4f7f\u7528\u3002<\/li>\n<li>\u5b83\u662f<span style=\"color: #008000;\">\u9759\u6001<\/span>\u7684\uff0c\u610f\u5473\u7740\u5b83\u4e0d\u4f1a\u751f\u6210\u6240\u8c13\u7684\u201c\u5408\u6210\u65b9\u6cd5\uff08synthetic method\uff09\u201d\u4ee5\u5141\u8bb8\u5b83\u8bfb\u53d6\u5176\u7236\u7c7b\u7684\u6570\u636e\u3002\u8fd9\u540c\u65f6\u4e5f\u610f\u5473\u7740\u5b83\u662f\u4e00\u4e2a\u5177\u6709\u72ec\u7acb\u884c\u4e3a\u7684\u7c7b\uff0c\u5e76\u6ca1\u6709\u548c<span style=\"color: #008000;\">NoteEditor<\/span>\u4fdd\u6301\u7740\u9ad8\u5ea6\u76f8\u5173\u6027\u3002\u8fd9\u662f\u521b\u5efa\u4e0d\u9700\u8981\u8bfb\u53d6\u5916\u90e8\u7c7b\u7684\u6570\u636e\u7684\u5185\u90e8\u7c7b\u65f6\u4e00\u79cd\u6bd4\u8f83\u6761\u7406\u6e05\u695a\u7684\u505a\u6cd5\uff0c\u5b83\u4f7f\u5f97\u751f\u6210\u7684\u7c7b\u8f83\u5c0f\u4e14\u80fd\u88ab\u5176\u4ed6\u7c7b\u6240\u4f7f\u7528\u3002<\/li>\n<li>\u5728\u8fd9\u91cc<span style=\"color: #008000;\">EditText<\/span>\u88ab\u9009\u4f5c\u9700\u8981\u81ea\u5b9a\u4e49\u7684View\u6765\u88ab\u5b83\u7ee7\u627f\u3002\u5f53\u5b8c\u6210\u540e\uff0c\u4e00\u4e2a\u65b0\u7684\u7c7b\u53ef\u4ee5\u7528\u6765\u66ff\u4ee3\u901a\u5e38\u7684<span style=\"color: #008000;\">EditText<\/span>\u89c6\u56fe\u3002<\/li>\n<\/ul>\n<p>2.\u00a0<strong>\u7c7b\u521d\u59cb\u5316<\/strong><\/p>\n<p>\u548c\u5f80\u5e38\u4e00\u6837\uff0csuper\u88ab\u9996\u5148\u8c03\u7528\u3002\u53e6\u5916\uff0c\u8fd9\u4e0d\u662f\u4e00\u4e2a\u9ed8\u8ba4\u7684\u6784\u9020\u51fd\u6570\uff0c\u800c\u662f\u5305\u542b\u4e86\u4e00\u4e9b\u7684\u53c2\u6570\u3002EditText\u5728\u901a\u8fc7XML\u5e03\u5c40\u6587\u4ef6\u751f\u6210\u65f6\u5c06\u7528\u5230\u8fd9\u4e9b\u53c2\u6570\uff0c\u56e0\u6b64\uff0c\u65b0\u7684\u6784\u9020\u51fd\u6570\u4e5f\u8981\u83b7\u53d6\u8fd9\u4e9b\u53c2\u6570\u5e76\u5c06\u5176\u4f20\u9012\u7ed9\u7236\u7c7b\u7684\u6784\u9020\u51fd\u6570\u3002<\/p>\n<p>3.\u00a0<strong>\u8986\u76d6\u65b9\u6cd5<\/strong><\/p>\n<p>\u5728\u8be5\u8303\u4f8b\u4e2d\uff0c\u53ea\u8986\u76d6\u4e86\u4e00\u4e2a\u65b9\u6cd5\uff1a<span style=\"color: #008000;\">onDraw()<\/span> \u2014\u2014 \u4e0d\u8fc7\u5f53\u521b\u5efa\u81ea\u5df1\u7684\u81ea\u5b9a\u4e49\u7ec4\u4ef6\u65f6\u5f88\u53ef\u80fd\u9700\u8981\u8986\u76d6\u66f4\u591a\u65b9\u6cd5\u3002<\/p>\n<p>\u5bf9\u4e8eNotePad\u8303\u4f8b\u6765\u4e66\uff0c\u8986\u76d6<span style=\"color: #008000;\">onDraw()<\/span>\u65b9\u6cd5\u4f7f\u5f97\u80fd\u591f\u5728EditText\u89c6\u56fe\u7684\u753b\u5e03\uff08canvas\uff09\u4e0a\u7ed8\u5236\u84dd\u7ebf\uff08\u753b\u5e03\u88ab\u4f20\u9012\u7ed9\u4e86\u88ab\u8986\u76d6\u7684<span style=\"color: #008000;\">onDraw()<\/span>\u65b9\u6cd5\uff09\u3002super.onDraw()\u65b9\u6cd5\u5728\u8be5\u65b9\u6cd5\u7ed3\u675f\u524d\u4f1a\u88ab\u8c03\u7528\u3002\u8fd9\u4e00\u7236\u7c7b\u65b9\u6cd5\u7684\u8c03\u7528\u662f\u5fc5\u9700\u7684\uff0c\u4e0d\u8fc7\u5728\u8fd9\u91cc\uff0c\u5b83\u5728\u5b8c\u6210\u4e86\u6240\u5e0c\u671b\u7684\u76f4\u7ebf\u7684\u7ed8\u5236\u540e\u624d\u88ab\u6700\u540e\u6267\u884c\u3002<\/p>\n<p>4.\u00a0<strong>\u4f7f\u7528\u81ea\u5b9a\u4e49\u7ec4\u4ef6<\/strong><\/p>\n<p>\u73b0\u5728\u5df2\u7ecf\u6709\u4e86\u81ea\u5b9a\u4e49\u7684\u7ec4\u4ef6\uff0c\u4e0d\u8fc7\u8be5\u5982\u4f55\u4f7f\u7528\u5462\uff1f\u5728NotePad\u8303\u4f8b\u4e2d\uff0c\u81ea\u5b9a\u4e49\u7ec4\u4ef6\u88ab\u76f4\u63a5\u4ece\u58f0\u660e\u5f0f\u7684\u5e03\u5c40\u4e2d\u4f7f\u7528\uff0c\u6240\u4ee5\u73b0\u5728\u6765\u770b\u4e0b<span style=\"color: #008000;\">res\/layout<\/span>\u6587\u4ef6\u5939\u4e0b\u7684<span style=\"color: #008000;\">note_editor.xml<\/span>\u3002<\/p>\n<pre><span style=\"color: #000080;\">&lt;view<\/span>\r\n<span style=\"color: #800080;\">\u00a0 class=<span style=\"color: #008000;\">\"com.android.notepad.NoteEditor$MyEditText\" <\/span><\/span>\r\n<span style=\"color: #800080;\">\u00a0 id=<span style=\"color: #008000;\">\"@+id\/note\"<\/span><\/span>\r\n<span style=\"color: #800080;\">\u00a0 android:layout_width=<span style=\"color: #008000;\">\"fill_parent\"<\/span><\/span>\r\n<span style=\"color: #800080;\">\u00a0 android:layout_height=<span style=\"color: #008000;\">\"fill_parent\"<\/span><\/span>\r\n<span style=\"color: #800080;\">\u00a0 android:background=<span style=\"color: #008000;\">\"@android:drawable\/empty\"<\/span><\/span>\r\n<span style=\"color: #800080;\">\u00a0 android:padding=<span style=\"color: #008000;\">\"10dip\"<\/span><\/span>\r\n<span style=\"color: #800080;\">\u00a0 android:scrollbars=<span style=\"color: #008000;\">\"vertical\"<\/span><\/span>\r\n<span style=\"color: #800080;\">\u00a0 android:fadingEdge=<span style=\"color: #008000;\">\"vertical\"<\/span> <span style=\"color: #000080;\">\/&gt;<\/span><\/span><\/pre>\n<p style=\"padding-left: 30px;\">*\u8be5\u81ea\u5b9a\u4e49\u7ec4\u4ef6\u4f5c\u4e3a\u901a\u7528\u89c6\u56fe\u5728XML\u4e2d\u88ab\u521b\u5efa\uff0c\u4e14\u8be5\u7c7b\u88ab\u6307\u5b9a\u4e3a\u4f7f\u7528\u6574\u4e2a\u5305\u3002\u8fd8\u8981\u6ce8\u610f\u6240\u5b9a\u4e49\u7684\u5185\u90e8\u7c7b\u901a\u8fc7<span style=\"color: #008000;\">NoteEditor$MyEditText<\/span>\u6807\u8bc6\u6765\u5f15\u7528\uff0c\u8fd9\u662fJava\u7f16\u7a0b\u8bed\u8a00\u4e2d\u5f15\u7528\u5185\u90e8\u7c7b\u7684\u6807\u51c6\u65b9\u5f0f\u3002<\/p>\n<p style=\"padding-left: 30px;\">\u5982\u679c\u81ea\u5b9a\u4e49\u7684View\u7ec4\u4ef6\u6ca1\u6709\u4f5c\u4e3a\u5185\u90e8\u7c7b\u88ab\u5b9a\u4e49\uff0c\u90a3\u4e48\u8fd8\u53ef\u4ee5\u7528XML\u5143\u7d20\u540d\u79f0\u6765\u58f0\u660e\u8be5View\u7ec4\u4ef6\u800c\u4e0d\u5305\u62ec<span style=\"color: #008000;\">class<\/span>\u5c5e\u6027\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><span style=\"color: #000080;\">&lt;com.android.notepad.MyEditText<\/span>\r\n<span style=\"color: #000080;\"><span style=\"color: #800080;\">\u00a0 id<\/span>=<span style=\"color: #008000;\">\"@+id\/note\"<\/span><\/span>\r\n<span style=\"color: #000080;\">\u00a0 ... \/&gt;<\/span><\/pre>\n<p style=\"padding-left: 30px;\">\u6ce8\u610f\u73b0\u5728\u7684<span style=\"color: #008000;\">MyEditText<\/span>\u7c7b\u662f\u4e00\u4e2a\u5355\u72ec\u7684\u7c7b\u6587\u4ef6\u3002\u5f53\u8fd9\u4e2a\u7c7b\u88ab\u5d4c\u5957\u4e8e<span style=\"color: #008000;\">NoteEditor<\/span>\u7c7b\u4e2d\u65f6\uff0c\u8fd9\u6837\u7684\u505a\u6cd5\u5c06\u4f1a\u6709\u95ee\u9898\u3002<\/p>\n<p style=\"padding-left: 30px;\">*\u5b9a\u4e49\u4e2d\u7684\u5176\u4ed6\u5c5e\u6027\u548c\u53c2\u6570\u5c06\u88ab\u4f20\u9012\u81f3\u81ea\u5b9a\u4e49\u7ec4\u4ef6\u7684\u6784\u9020\u51fd\u6570\uff0c\u4e4b\u540e\u88ab\u4f20\u5165EditText\u7684\u6784\u9020\u51fd\u6570\uff0c\u5373\u8fd9\u4e9b\u4e5f\u662fEditText\u6240\u9700\u8981\u4f7f\u7528\u7684\u53c2\u6570\u3002\u6ce8\u610f\u8fd8\u53ef\u4ee5\u589e\u52a0\u81ea\u6709\u53c2\u6570\uff0c\u4e4b\u540e\u8fd8\u4f1a\u6d89\u53ca\u8fd9\u4e00\u95ee\u9898\u3002<\/p>\n<p>\u8be5\u8303\u4f8b\u7684\u8bf4\u660e\u81f3\u6b64\u3002\u786e\u5b9e\u8fd9\u53ea\u662f\u4e2a\u7b80\u5355\u7684\u4f8b\u5b50\uff0c\u4f46\u5b83\u6f14\u793a\u4e86\u5173\u952e\u70b9\u2014\u2014\u53ef\u4ee5\u6839\u636e\u9700\u6c42\u521b\u5efa\u4efb\u4f55\u590d\u6742\u7684\u81ea\u5b9a\u4e49\u7ec4\u4ef6\u3002<\/p>\n<p>\u4e00\u4e2a\u66f4\u4e3a\u590d\u6742\u7684\u7ec4\u4ef6\u53ef\u80fd\u9700\u8981\u8986\u76d6\u66f4\u591a\u7684on&#8230;\u65b9\u6cd5\u5e76\u4e14\u5f15\u5165\u4e00\u4e9b\u81ea\u6709\u7684\u65b9\u6cd5\u4ee5\u5b8c\u5168\u81ea\u5b9a\u4e49\u5176\u5c5e\u6027\u548c\u884c\u4e3a\u3002\u552f\u4e00\u7684\u9650\u5236\u5c31\u4ec5\u4ec5\u662f\u60f3\u8c61\u529b\u548c\u5b9e\u9645\u9700\u8981\u7ec4\u4ef6\u53bb\u5b8c\u6210\u600e\u6837\u7684\u5de5\u4f5c\u3002<\/p>\n<p><a title=\"\u7528\u6237\u754c\u9762\" href=\"http:\/\/leybreeze.com\/blog\/?p=117\">\u00a0\u8fd4\u56de\u7528\u6237\u754c\u9762<\/a><\/p>\n<p>\u672c\u9875\u90e8\u5206\u5185\u5bb9\u6839\u636e<a title=\"Android Open Source Projec\" href=\"http:\/\/code.google.com\/intl\/zh-CN\/policies.html\" target=\"_blank\">Android Open Source Project<\/a>\u521b\u4f5c\u5e76\u5171\u4eab\u7684\u5185\u5bb9\u4fee\u6539\uff0c\u5e76\u5728<a title=\"\u77e5\u8bc6\u5171\u4eab \u7f72\u540d2.5\u8bb8\u53ef\u534f\u8bae\" href=\"http:\/\/creativecommons.org\/licenses\/by\/2.5\/\" target=\"_blank\">\u77e5\u8bc6\u5171\u4eab \u7f72\u540d2.5\u8bb8\u53ef\u534f\u8bae<\/a>\u4e2d\u6240\u8ff0\u6761\u6b3e\u7684\u9650\u5236\u4e0b\u4f7f\u7528\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Android\u63d0\u4f9b\u4e86\u4e00\u79cd\u9ad8\u7ea7\u800c\u5f3a\u5927\u7684\u81ea\u5b9a\u4e49\u6a21\u578b\u6765\u6784\u5efaUI\uff0c\u8fd9\u4e00\u6a21\u578b\u57fa\u4e8e\u5e03\u5c40\u7c7bView\u548cViewGroup\u6765\u5b9e\u73b0 &hellip; <a href=\"http:\/\/leybreeze.com\/blog\/?p=792\" class=\"more-link\">\u7ee7\u7eed\u9605\u8bfb<span class=\"screen-reader-text\">\u201c\u6784\u9020\u81ea\u5b9a\u4e49\u7ec4\u4ef6\u201d<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6,10],"tags":[5,44,17,92],"_links":{"self":[{"href":"http:\/\/leybreeze.com\/blog\/index.php?rest_route=\/wp\/v2\/posts\/792"}],"collection":[{"href":"http:\/\/leybreeze.com\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/leybreeze.com\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/leybreeze.com\/blog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/leybreeze.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=792"}],"version-history":[{"count":16,"href":"http:\/\/leybreeze.com\/blog\/index.php?rest_route=\/wp\/v2\/posts\/792\/revisions"}],"predecessor-version":[{"id":813,"href":"http:\/\/leybreeze.com\/blog\/index.php?rest_route=\/wp\/v2\/posts\/792\/revisions\/813"}],"wp:attachment":[{"href":"http:\/\/leybreeze.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=792"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/leybreeze.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=792"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/leybreeze.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=792"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}