Android\u6846\u67b6\u53ef\u7075\u6d3b\u5730\u4f7f\u7528\u4ee5\u4e0a\u4e00\u79cd\u6216\u4e24\u79cd\u65b9\u6cd5\u6765\u58f0\u660e\u5e76\u7ba1\u7406\u7a0b\u5e8f\u754c\u9762\u3002\u6bd4\u5982\uff0c\u53ef\u4ee5\u5728XML\u4e2d\u58f0\u660e\u7a0b\u5e8f\u7684\u9ed8\u8ba4\u5e03\u5c40\uff0c\u50cf\u662f\u5c4f\u5e55\u4e0a\u663e\u793a\u7684\u5143\u7d20\u53ca\u5176\u5c5e\u6027\u3002\u4e4b\u540e\u53ef\u4ee5\u5728\u7a0b\u5e8f\u4e2d\u6dfb\u52a0\u4ee3\u7801\u4ee5\u5728\u8fd0\u884c\u65f6\u4fee\u6539\u5305\u62ecXML\u4e2d\u6240\u58f0\u660e\u7684\u5c4f\u5e55\u7269\u4ef6\u7684\u72b6\u6001\u3002<\/p>\n
- \n
- Eclipse\u7684ADT\u63d2\u4ef6\u63d0\u4f9b\u4e86XML\u7684\u5e03\u5c40\u9884\u89c8\u2014\u2014\u6253\u5f00XML\u6587\u4ef6\u540e\u9009\u62e9Layout<\/strong>\u6807\u7b7e\u3002<\/li>\n
- \u8fd8\u53ef\u4ee5\u8bd5\u7740\u7528\u5c42\u6b21\u67e5\u770b\u5668\u5de5\u5177\uff08Hierarchy View Tool\uff09\u6765\u8c03\u8bd5\u5e03\u5c40\u2014\u2014\u5b83\u663e\u793a\u4e86\u5e03\u5c40\u7684\u5c5e\u6027\u503c\uff0c\u4ee5\u95f4\u8ddd\/\u8fb9\u7f18\u6307\u793a\u5668\u6765\u753b\u51fa\u6846\u67b6\uff0c\u5e76\u5728\u901a\u8fc7\u6a21\u62df\u5668\u6216\u5b9e\u673a\u8c03\u8bd5\u65f6\u6e32\u67d3\u6574\u4e2a\u89c6\u56fe\u3002<\/li>\n
- layoutopt\u5de5\u5177\u53ef\u4ee5\u5feb\u901f\u5206\u6790\u5e03\u5c40\u548c\u5c42\u6b21\u4e2d\u7684\u6548\u7387\u4f4e\u4e0b\u6216\u5176\u4ed6\u95ee\u9898\u3002<\/li>\n<\/ul>\n
\u5728XML\u4e2d\u58f0\u660eUI\u7684\u4f18\u52bf\u5728\u4e8e\u53ef\u4ee5\u66f4\u597d\u5730\u5206\u79bb\u7a0b\u5e8f\u663e\u793a\u4e0e\u63a7\u5236\u884c\u4e3a\u7684\u4ee3\u7801\u3002UI\u63cf\u8ff0\u4e0d\u5c5e\u4e8e\u7a0b\u5e8f\u4ee3\u7801\u3002\u610f\u5473\u7740\u4e0d\u5fc5\u4fee\u6539\u6e90\u4ee3\u7801\u5e76\u91cd\u7f16\u8bd1\u5c31\u80fd\u4fee\u6539UI\u3002\u6bd4\u5982\uff0c\u53ef\u4ee5\u4e3a\u4e0d\u540c\u5c4f\u5e55\u65b9\u5411\u3001\u4e0d\u540c\u5c4f\u5e55\u5c3a\u5bf8\u4e0e\u4e0d\u540c\u8bed\u8a00\u521b\u5efa\u591a\u4e2aXML\u5e03\u5c40\u3002\u53e6\u5916\uff0c\u5728XML\u4e2d\u58f0\u660e\u5e03\u5c40\u4f7fUI\u7684\u53ef\u89c6\u5316\u53d8\u5f97\u66f4\u4e3a\u5bb9\u6613\uff0c\u4e5f\u5c31\u66f4\u5bb9\u6613\u8c03\u8bd5\u3002\u56e0\u6b64\uff0c\u672c\u6587\u6863\u7740\u773c\u4e8e\u8bb2\u6388\u5982\u4f55\u901a\u8fc7XML\u58f0\u660e\u5e03\u5c40\u3002\u5982\u679c\u5bf9\u4e8e\u5728\u8fd0\u884c\u65f6\u5b9e\u4f8b\u5316View\u5bf9\u8c61\u7684\u8bdd\uff0c\u53ef\u4ee5\u53c2\u8003ViewGroup\u548cView\u7c7b\u7684\u5185\u5bb9\u3002<\/p>\n
\u901a\u5e38\uff0c\u7528\u4ee5\u58f0\u660eUI\u5143\u7d20\u7684XML\u8bcd\u6c47\u548c\u7ed3\u6784\u3001\u7c7b\u4e0e\u65b9\u6cd5\u7684\u547d\u540d\u7d27\u5bc6\u76f8\u5173\uff0c\u5143\u7d20\u540d\u79f0\u5bf9\u82f1\u8bed\u7c7b\u540d\uff0c\u5c5e\u6027\u540d\u79f0\u5bf9\u5e94\u4e8e\u65b9\u6cd5\u3002\u4e8b\u5b9e\u4e0a\uff0c\u8fd9\u4e00\u5bf9\u5e94\u5173\u7cfb\u975e\u5e38\u76f4\u63a5\u4ee5\u81f3\u4e8e\u53ef\u4ee5\u731c\u51faXML\u5c5e\u6027\u5bf9\u5e94\u7684\u7c7b\u65b9\u6cd5\uff0c\u6216\u731c\u51fa\u4e00\u4e2a\u7ed9\u5b9a\u7684XML\u5143\u7d20\u5bf9\u5e94\u4e8e\u54ea\u4e00\u4e2a\u7c7b\u3002\u4e0d\u8fc7\uff0c\u6ce8\u610f\u5e76\u975e\u6240\u6709\u8bcd\u6c47\u90fd\u662f\u76f8\u540c\u7684\u3002\u5728\u4e00\u4e9b\u60c5\u51b5\u4e0b\uff0c\u547d\u540d\u4e0a\u6709\u4e9b\u5c0f\u5dee\u5f02\u3002\u6bd4\u5982\uff0cEditText\u5143\u7d20\u6709\u4e00\u4e2atext\u5c5e\u6027\uff0c\u5b83\u5bf9\u5e94\u7684\u662fEditText.setText()<\/span>\u3002<\/p>\n
Tip\uff1a\u53ef\u4ee5\u5728\u201d\u5e38\u7528Layout\u5bf9\u8c61\u201c\u4e00\u6587\u4e2d\u4e86\u89e3\u66f4\u591a\u4e0d\u540c\u7684\u5e03\u5c40\u7c7b\u578b\u3002\u5728\u201dHello Views\u201c\u6559\u7a0b\u4e2d\u6709\u5173\u4e8e\u5982\u4f55\u6784\u5efa\u4e0d\u540c\u5e03\u5c40\u7684\u4e00\u7cfb\u5217\u6559\u7a0b\u3002<\/p>\n
\u7f16\u5199XML<\/strong><\/p>\n
\u4f7f\u7528Android\u7684XML\u8bcd\u6c47\uff0c\u53ef\u4ee5\u50cf\u7528HTML\u521b\u5efa\u7f51\u9875\u4e00\u6837\u901a\u8fc7\u4e00\u7cfb\u5217\u7684\u5d4c\u5957\u5143\u7d20\u5feb\u901f\u5730\u8bbe\u8ba1UI\u5e03\u5c40\u4e0e\u5176\u4e2d\u5305\u542b\u7684\u5c4f\u5e55\u5143\u7d20\u3002<\/p>\n
\u6bcf\u4e00\u4e2a\u5e03\u5c40\u6587\u4ef6\u5fc5\u987b\u5305\u542b\u4e00\u4e2aView\u6216ViewGroup\u5bf9\u8c61\u4f5c\u4e3a\u6839\u5143\u7d20\u3002\u4e00\u65e6\u5b9a\u4e49\u4e86\u6839\u5143\u7d20\uff0c\u5c31\u53ef\u4ee5\u6dfb\u52a0\u5176\u4ed6\u7684\u5e03\u5c40\u5bf9\u8c61\u6216\u662f\u90e8\u4ef6\u4f5c\u4e3a\u5176\u5b50\u5143\u7d20\uff0c\u9010\u6e10\u6784\u9020\u51fa\u80fd\u591f\u7528\u4e8e\u5b9a\u4e49\u5e03\u5c40\u7684\u89c6\u56fe\u5c42\u6b21\u3002\u6bd4\u5982\uff0c\u4e0b\u9762\u662f\u4e00\u4e2aXML\u5e03\u5c40\uff0c\u5b83\u4f7f\u7528\u4e86\u5782\u76f4LinearLayout\u5e76\u542b\u6709\u4e00\u4e2aTextView\u548c\u4e00\u4e2aButton\uff1a<\/p>\n
<?xml version=\"1.0\" encoding=\"utf-8\"?>\r\n<LinearLayout xmlns:android=\"http:\/\/schemas.android.com\/apk\/res\/android\"\r\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 android:layout_width=\"fill_parent\"\r\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 android:layout_height=\"fill_parent\"\r\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 android:orientation=\"vertical\" >\r\n\u00a0 \u00a0 <TextView android:id=\"@+id\/text\"\r\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 android:layout_width=\"wrap_content\"\r\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 android:layout_height=\"wrap_content\"\r\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 android:text=\"Hello, I am a TextView\" \/>\r\n\u00a0 \u00a0 <Button android:id=\"@+id\/button\"\r\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 android:layout_width=\"wrap_content\"\r\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 android:layout_height=\"wrap_content\"\r\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 android:text=\"Hello, I am a Button\" \/>\r\n<\/LinearLayout><\/pre>\n
\u5728XML\u4e2d\u58f0\u660e\u4e86\u5e03\u5c40\u4e4b\u540e\uff0c\u4ee5.xml<\/span>\u540e\u7f00\u4fdd\u5b58\u8be5\u6587\u4ef6\u4e0eAndroid\u9879\u76ee\u7684res\/layout\/<\/span>\u6587\u4ef6\u5939\uff0c\u8fd9\u6837\u5b83\u5c31\u80fd\u88ab\u6b63\u786e\u7f16\u8bd1\u3002<\/p>\n
\u4e3a\u4e86\u65b9\u4fbf\uff0cUI\u76f8\u5173\u7684\u7c7b\u7684API\u53c2\u8003\u6587\u6863\u5217\u51fa\u4e86\u4e0e\u7c7b\u7684\u65b9\u6cd5\u5bf9\u5e94\u7684\u53ef\u7528\u7684XML\u5c5e\u6027\uff0c\u4ee5\u53ca\u7ee7\u627f\u5c5e\u6027\u3002<\/p>\n
\u8981\u4e86\u89e3\u66f4\u591a\u5173\u4e8e\u53ef\u7528\u7684XML\u5143\u7d20\u548c\u5c5e\u6027\u4ee5\u53caXML\u6587\u4ef6\u7684\u683c\u5f0f\u7684\u4fe1\u606f\uff0c\u53c2\u9605\u201c\u5e03\u5c40\u8d44\u6e90\u201d\u3002<\/p>\n
\u7a0d\u540e\u5c06\u8ba8\u8bba\u8fd9\u91cc\u51fa\u73b0\u7684\u6bcf\u4e00\u4e2a\u5c5e\u6027\u3002<\/p>\n
\u8f7d\u5165XML\u8d44\u6e90<\/strong><\/p>\n
\u5728\u7f16\u8bd1\u7a0b\u5e8f\u65f6\uff0c\u6bcf\u4e00\u4e2aXML\u5e03\u5c40\u6587\u4ef6\u4f1a\u88ab\u7f16\u8bd1\u4e3a\u4e00\u4e2aView\u8d44\u6e90\u3002\u9700\u8981\u5728\u8be5\u6d3b\u52a8\u7684onCreate()\u65b9\u6cd5\u4e2d\u4f7f\u7528\u7a0b\u5e8f\u4ee3\u7801\u6765\u8f7d\u5165\u5e03\u5c40\u8d44\u6e90\u3002\u901a\u8fc7\u8c03\u7528setContentView()\uff0c\u4ee5R.layout.layout_file_name<\/span>\u7684\u5f62\u5f0f\u4f20\u9012\u8fd9\u4e2a\u5f15\u7528\u7ed9\u5e03\u5c40\u8d44\u6e90\u3002\u6bd4\u5982\uff0c\u5982\u679cXML\u5e03\u5c40\u88ab\u4fdd\u5b58\u4e3amain_layout.xml<\/span>\uff0c\u90a3\u4e48\u5e94\u8be5\u50cf\u8fd9\u6837\u5c06\u5b83\u8bfb\u5165\u6d3b\u52a8\uff1a<\/p>\n
public void onCreate(Bundle savedInstanceState) {\r\n\u00a0 \u00a0 super.onCreate(savedInstanceState);\r\n\u00a0 \u00a0 setContentView.(R.layout.main_layout);\r\n}<\/pre>\n\u6d3b\u52a8\u4e2d\u7684onCreate()<\/span>\u56de\u9988\u65b9\u6cd5\u5728\u6d3b\u52a8\u88ab\u542f\u52a8\u65f6\u88abAndroid\u6846\u67b6\u8c03\u7528\uff08\u53c2\u89c1\u201c\u5e94\u7528\u7a0b\u5e8f\u57fa\u7840<\/a>\u201d\u4e2d\u7684\u5173\u4e8e\u751f\u547d\u5468\u671f\u7684\u8ba8\u8bba\u4ee5\u4e86\u89e3\u66f4\u591a\uff09\u3002<\/p>\n
\u5c5e\u6027<\/strong><\/p>\n
\u6bcf\u4e00\u4e2aView\u548cViewGroup\u5bf9\u8c61\u652f\u6301\u5176\u81ea\u6709\u7684XML\u5c5e\u6027\u3002\u6709\u4e9b\u5c5e\u6027\u4e13\u7528\u4e8e\u67d0\u4e00View\u5bf9\u8c61\uff08\u6bd4\u5982\uff0cTextView\u652f\u6301textSize\u5c5e\u6027\uff09\uff0c\u4f46\u8fd9\u79cd\u5c5e\u6027\u4e5f\u4f1a\u88ab\u6269\u5c55\u4e8e\u8fd9\u4e2a\u7c7b\u7684View\u5bf9\u8c61\u6240\u7ee7\u627f\u3002\u4e00\u4e9b\u5c5e\u6027\u5bf9\u6240\u6709View\u5bf9\u8c61\u90fd\u9002\u7528\uff0c\u56e0\u4e3a\u5b83\u4eec\u7ee7\u627f\u4e8e\u6839View\u7c7b\uff08\u6bd4\u5982id\u5c5e\u6027\uff09\u3002\u540c\u65f6\uff0c\u5176\u4ed6\u7684\u5c5e\u6027\u88ab\u770b\u4f5c\u662f\u201c\u5e03\u5c40\u53c2\u6570\u201d\uff0c\u5728View\u5bf9\u8c61\u7684ViewGroup\u7236\u5bf9\u8c61\u4e2d\u5b9a\u4e49\u7528\u4ee5\u63cf\u8ff0View\u5bf9\u8c61\u7279\u5b9a\u7684\u5e03\u5c40\u4f4d\u7f6e\u3002<\/p>\n
ID<\/p>\n
\u4efb\u4f55View\u5bf9\u8c61\u90fd\u6709\u4e00\u4e2a\u6574\u6570ID\u4e0e\u4e4b\u5173\u8054\uff0c\u4ee5\u5728\u5c42\u6b21\u6811\u79cd\u552f\u4e00\u786e\u5b9a\u8be5View\u3002\u5f53\u7a0b\u5e8f\u5728\u7f16\u8bd1\u65f6\uff0cID\u4f5c\u4e3a\u6574\u6570\u88ab\u5f15\u7528\uff0c\u4e0d\u8fc7ID\u5374\u662f\u4f5c\u4e3a\u5b57\u7b26\u4e32\u88ab\u5206\u914d\u7ed9\u5e03\u5c40XML\u6587\u4ef6\u7684\u3002\u8fd9\u662f\u4e00\u4e2a\u5bf9\u6240\u6709View\u90fd\u9002\u7528\u7684XML\u5c5e\u6027\uff08\u7531View\u7c7b\u5b9a\u4e49\uff09\uff0c\u5c06\u88ab\u7ecf\u5e38\u4f7f\u7528\u3002ID\u5728XML\u6807\u7b7e\u4e2d\u7684\u8bed\u6cd5\u683c\u5f0f\u5982\u4e0b\uff1a<\/p>\n
android:id=\"@+id\/my_button\"<\/pre>\n
\u5b57\u7b26\u4e32\u5934\u90e8\u7684@\u7b26\u53f7\u8868\u660eXML\u8bed\u6cd5\u5206\u6790\u5668\u5e94\u8be5\u628aID\u5b57\u7b26\u4e32\u7684\u5269\u4f59\u90e8\u5206\u8bc6\u522b\u4e3aID\u8d44\u6e90\u5e76\u5206\u6790\u4e0e\u6269\u5c55\u5b83\u3002\u52a0\u53f7\uff08+\uff09\u610f\u5473\u7740\u8fd9\u662f\u4e00\u4e2a\u65b0\u7684\u8d44\u6e90\u540d\uff0c\u5fc5\u987b\u88ab\u521b\u5efa\u5e76\u6dfb\u52a0\u81f3\u8d44\u6e90\u4e2d\uff08\u5728R.java<\/span>\u6587\u4ef6\u91cc\uff09\u3002\u8fd8\u6709\u5176\u4ed6\u8bb8\u591aAndroid\u6846\u67b6\u63d0\u4f9b\u7684ID\u8d44\u6e90\u3002\u5728\u5f15\u7528Android\u8d44\u6e90ID\u65f6\uff0c\u4e0d\u9700\u8981\u4f7f\u7528\u52a0\u53f7\uff0c\u4f46\u5fc5\u987b\u50cf\u8fd9\u6837\u52a0\u4e0aandroid<\/span>\u5305\u7684\u547d\u540d\u7a7a\u95f4\uff1a<\/p>\n
android:id=\"@android:id\/empty\"<\/pre>\n
\u7531\u4e8e\u6709\u4e86android<\/span>\u5305\u7684\u547d\u540d\u7a7a\u95f4\uff0c\u73b0\u5728\u53ef\u4ee5\u5f15\u7528android.R<\/span>\u8d44\u6e90\u7c7b\u4e2d\u7684ID\uff0c\u800c\u4e0d\u4ec5\u4ec5\u662f\u672c\u5730\u8d44\u6e90\u7c7b\u3002<\/p>\n
\u4e3a\u4e86\u5728\u7a0b\u5e8f\u4e2d\u521b\u5efa\u89c6\u56fe\u5e76\u5f15\u7528\u5b83\uff0c\u901a\u5e38\u91c7\u7528\u8fd9\u6837\u7684\u65b9\u5f0f\uff1a<\/p>\n
1\u3001\u5728\u5e03\u5c40\u6587\u4ef6\u4e2d\u5b9a\u4e49\u4e00\u4e2a\u89c6\u56fe\/\u90e8\u4ef6\uff0c\u4e4b\u540e\u5206\u914d\u5176\u4e00\u4e2a\u4e13\u6709\u7684ID\uff1a<\/p>\n
<Button android:id=\"@+id\/my_button\"\r\n\u00a0 \u00a0 \u00a0 \u00a0 android:layout_width=\"wrap_content\"\r\n\u00a0 \u00a0 \u00a0 \u00a0 android:layout_height=\"wrap_content\"\r\n\u00a0 \u00a0 \u00a0 \u00a0 android:text=\"@string\/my_button_text\"\/><\/pre>\n
2\u3001\u7136\u540e\u521b\u5efa\u8be5\u89c6\u56fe\u5bf9\u8c61\u7684\u4e00\u4e2a\u5b9e\u4f8b\uff0c\u5e76\u4ece\u5e03\u5c40\u4e2d\u83b7\u53d6\u5b83\uff08\u901a\u5e38\u662f\u5728onCreate()\u65b9\u6cd5\u4e2d\uff09\uff1a<\/p>\n
Button myButton = (Button) findViewById(R.id.my_button);<\/pre>\n
\u5f53\u521b\u5efa\u4e00\u4e2aRelativeLayout\u65f6\u4e3a\u89c6\u56fe\u5bf9\u8c61\u5b9a\u4e49ID\u662f\u5f88\u91cd\u8981\u7684\u3002\u5728\u76f8\u5bf9\u5e03\u5c40\uff08relative layout\uff09\u4e2d\uff0c\u540c\u5c42\u6b21\u89c6\u56fe\u53ef\u4ee5\u901a\u8fc7\u5f15\u7528\u5176\u552f\u4e00\u7684ID\u6765\u76f8\u5bf9\u5730\u5b9a\u4e49\u5b83\u4eec\u4e4b\u95f4\u7684\u5e03\u5c40\u3002<\/p>\n
\u5728\u6574\u68f5\u5c42\u6b21\u6811\u4e2dID\u4e0d\u9700\u8981\u662f\u552f\u4e00\u7684\uff0c\u4f46\u5728\u88ab\u641c\u7d22\u7684\u8fd9\u90e8\u5206\u4e2d\u5b83\u9700\u8981\u662f\u552f\u4e00\u7684\uff08\u4e0d\u8fc7\u7531\u4e8e\u901a\u5e38\u4f1a\u641c\u7d22\u6574\u68f5\u6811\uff0c\u6240\u4ee5\u6700\u597d\u5c3d\u53ef\u80fd\u8bbe\u5b9a\u552f\u4e00\u7684ID\uff09\u3002<\/p>\n
\u5e03\u5c40\u53c2\u6570<\/strong><\/p>\n
\u88ab\u547d\u540d\u4e3alayout_XXXX<\/span><\/em><\/span>\u7684XML\u5e03\u5c40\u5c5e\u6027\u4e3aView\u5b9a\u4e49\u4e86\u5176\u5e03\u5c40\u53c2\u6570\u4ee5\u9002\u5408\u4e8e\u5176\u6240\u5728\u7684ViewGroup\u3002<\/p>\n
\u6bcf\u4e00\u4e2aViewGroup\u7c7b\u6709\u4e00\u4e2a\u6269\u5c55\u4e8eViewGroup.LayoutParams\u7684\u5d4c\u5957\u7c7b\u3002\u8fd9\u4e2a\u5b50\u7c7b\u5305\u542b\u4e86\u5b9a\u4e49\u6bcf\u4e00\u4e2a\u5b50\u89c6\u56fe\u9002\u5408\u4e8e\u89c6\u56fe\u7ec4\u7684\u5c3a\u5bf8\u548c\u4f4d\u7f6e\u7684\u6b63\u786e\u7c7b\u578b\u3002\u5982\u4e0b\u56fe\u6240\u793a\uff0c\u7236\u89c6\u56fe\u7ec4\u4e3a\u6bcf\u4e00\u4e2a\u5b50\u89c6\u56fe\uff08\u5305\u62ec\u5b50\u89c6\u56fe\u7ec4\uff09\u5b9a\u4e49\u4e86\u5e03\u5c40\u53c2\u6570\u3002<\/p>\n
![\"\"](\"http:\/\/leybreeze.com\/blog\/wp-content\/uploads\/2011\/02\/layoutparams.png\" "\\"layoutparams\\"")
<\/a>\u6ce8\u610f\u6bcf\u4e00\u4e2aLayoutParams\u5b50\u7c7b\u90fd\u6709\u5176\u81ea\u6709\u7684\u8d4b\u503c\u8bed\u6cd5\u3002\u6bcf\u4e00\u4e2a\u5b50\u5143\u7d20\u5fc5\u987b\u5b9a\u4e49\u9002\u5408\u4e8e\u5176\u7236\u5143\u7d20\u7684LayoutParams\uff0c\u4e0d\u8fc7\u53ef\u4ee5\u4e3a\u5b83\u7684\u5b50\u5143\u7d20\u5b9a\u4e49\u4e0d\u540c\u7684\u53c2\u6570\u3002<\/p>\n\u6240\u6709\u7684\u89c6\u56fe\u7ec4\u5305\u542b\u6709\u5bbd\u5ea6\u548c\u9ad8\u5ea6\u53c2\u6570\uff08layout_width<\/span> \u548c layout_height<\/span>\uff09\uff0c\u6bcf\u4e00\u4e2a\u8bd5\u56fe\u90fd\u9700\u8981\u5b9a\u4e49\u5b83\u4eec\u4e24\u8005\u3002\u8bb8\u591aLayoutParams\u8fd8\u5305\u542b\u53ef\u9009\u7684\u8fb9\u8ddd\u7b49\u53c2\u6570\u3002<\/p>\n
\u53ef\u4ee5\u901a\u8fc7\u7cbe\u786e\u7684\u5355\u4f4d\u6765\u5236\u5b9a\u5bbd\u5ea6\u548c\u9ad8\u5ea6\uff0c\u4e0d\u8fc7\u5f80\u5f80\u4e0d\u8fd9\u6837\u505a\u3002\u66f4\u5e38\u89c1\u7684\u505a\u6cd5\u662f\u7528\u4e00\u4e0b\u5e38\u91cf\u4e4b\u4e00\u6765\u8bbe\u7f6e\u5bbd\u5ea6\u6216\u9ad8\u5ea6\uff1a<\/p>\n
- \n
- wrap_content<\/span><\/em> \u4f7f\u89c6\u56fe\u81ea\u52a8\u8c03\u8282\u5c3a\u5bf8\u5230\u5185\u5bb9\u6240\u9700\u7684\u5927\u5c0f<\/li>\n
- fill_parent<\/span><\/em> <\/span>\uff08\u5728API Level 8\u4e2d\u91cd\u547d\u540d\u4e3amatch_parent<\/em>\uff09\u4f7f\u89c6\u56fe\u53d8\u4e3a\u5176\u7236\u89c6\u56fe\u6240\u5141\u8bb8\u7684\u6700\u5927\u5c3a\u5bf8<\/li>\n<\/ul>\n
\u901a\u5e38\uff0c\u4e0d\u63a8\u8350\u7528\u7edd\u5bf9\u5355\u4f4d\u6bd4\u5982\u50cf\u7d20\u6765\u5b9a\u4e49\u5e03\u5c40\u7684\u5bbd\u5ea6\u548c\u9ad8\u5ea6\u3002\u6539\u7528\u76f8\u5bf9\u5ea6\u91cf\u65b9\u5f0f\u6bd4\u5982\u5bc6\u5ea6\u65e0\u5173\u50cf\u7d20\u5355\u4f4d\uff08dp<\/span><\/em>\uff09\uff0cwrap_content<\/span><\/em>\uff0c\u6216fill_parent<\/span><\/em>\u662f\u66f4\u597d\u7684\u65b9\u5f0f\uff0c\u56e0\u4e3a\u8fd9\u6837\u53ef\u4ee5\u5e2e\u52a9\u786e\u4fdd\u7a0b\u5e8f\u53ef\u4ee5\u5728\u4e0d\u540c\u5c4f\u5e55\u5c3a\u5bf8\u7684\u8bbe\u5907\u4e0a\u6b63\u786e\u663e\u793a\u3002\u53ef\u7528\u7684\u5ea6\u91cf\u65b9\u5f0f\u5728\u201c\u53ef\u7528\u8d44\u6e90\u201d\u6587\u6863\u4e2d\u88ab\u5b9a\u4e49\u3002<\/p>\n
\u5e03\u5c40\u4f4d\u7f6e<\/strong><\/p>\n
\u4e00\u4e2a\u89c6\u56fe\u5360\u6709\u4e00\u5757\u77e9\u5f62\u533a\u57df\u3002\u89c6\u56fe\u6709\u4e00\u4e2a\u901a\u8fc7\u4e00\u5bf9\u5de6\u4fa7<\/em>\u548c\u9876\u90e8<\/em>\u5750\u6807\u8868\u793a\u7684\u4f4d\u7f6e\uff0c\u4ee5\u53ca\u901a\u8fc7\u5bbd\u5ea6\u548c\u9ad8\u5ea6\u8868\u793a\u7684\u4e24\u4e2a\u7ef4\u5ea6\u3002\u4f4d\u7f6e\u548c\u7ef4\u5ea6\u7684\u5355\u4f4d\u662f\u50cf\u7d20\u3002<\/p>\n
\u53ef\u4ee5\u901a\u8fc7\u8c03\u7528getLeft()\u548cgetTop()\u65b9\u6cd5\u6765\u83b7\u5f97\u4e00\u4e2a\u89c6\u56fe\u7684\u4f4d\u7f6e\u3002\u524d\u8005\u5c06\u8fd4\u56de\u89c6\u56fe\u6240\u5360\u77e9\u5f62\u533a\u57df\u7684\u5de6\u4fa7\u6216\u8005\u8bf4X\u5750\u6807\uff0c\u540e\u8005\u8fd4\u56de\u8be5\u77e9\u5f62\u7684\u9876\u90e8\u6216\u8005\u8bf4Y\u5750\u6807\u3002\u8fd9\u4e24\u79cd\u65b9\u6cd5\u8fd4\u56de\u7684\u4f4d\u7f6e\u90fd\u4e0e\u5176\u7236\u89c6\u56fe\u76f8\u5173\u3002\u6bd4\u5982\uff0c\u5982\u679cgetLeft()\u8fd4\u56de20\uff0c\u5c31\u610f\u5473\u7740\u8be5\u89c6\u56fe\u5904\u4e8e\u5176\u76f4\u63a5\u7236\u89c6\u56fe\u5de6\u4fa7\u8fb9\u7f18\u8d77\u5411\u53f320\u50cf\u7d20\u7684\u4f4d\u7f6e\u3002<\/p>\n
\u53e6\u5916\uff0c\u6709\u4e00\u4e9b\u4fbf\u5229\u7684\u65b9\u6cd5\u53ef\u4ee5\u7528\u6765\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u8ba1\u7b97\uff0c\u5373getRight() \u548cgetBottom()\u3002\u8fd9\u4e9b\u65b9\u6cd5\u8fd4\u56de\u89c6\u56fe\u77e9\u5f62\u533a\u57df\u7684\u53f3\u4fa7\u548c\u5e95\u90e8\u5750\u6807\u3002\u6bd4\u5982\uff0c\u8c03\u7528getRight()\u5c31\u7c7b\u4f3c\u4e8e\u8fdb\u884c\u4e86getLeft() + getWidth()<\/span>\u7684\u8ba1\u7b97\u3002<\/p>\n
\u5c3a\u5bf8\u3001\u95f4\u9699\u548c\u8fb9\u8ddd<\/strong><\/p>\n
\u89c6\u56fe\u7684\u5c3a\u5bf8\u7531\u5bbd\u5ea6\u548c\u9ad8\u5ea6\u8868\u793a\u3002\u4e00\u4e2a\u89c6\u56fe\u5b9e\u9645\u4e0a\u6709\u4e24\u7ec4\u5bbd\u5ea6\u548c\u9ad8\u5ea6\u7684\u6570\u503c\u3002<\/p>\n
\u7b2c\u4e00\u7ec4\u662f\u6d4b\u91cf\u5bbd\u5ea6\uff08measured width\uff09<\/em><\/span>\u548c\u6d4b\u91cf\u9ad8\u5ea6\uff08measured height\uff09<\/em>\u3002\u5b83\u4eec\u8ba2\u7acb\u4e86\u4e00\u4e2a\u89c6\u56fe\u5728\u5176\u7236\u89c6\u56fe\u5185\u7684\u5927\u5c0f\u3002\u53ef\u4ee5\u901a\u8fc7\u8c03\u7528getMeasuredWidth()\u548cgetMeasuredHeight()\u6765\u83b7\u53d6\u5b83\u4eec\u7684\u503c\u3002<\/p>\n
\u7b2c\u4e8c\u7ec4\u662f\u5bbd\u5ea6<\/em>\u548c\u9ad8\u5ea6<\/em>\uff0c\u6709\u65f6\u5019\u4e5f\u88ab\u79f0\u4e3a\u7ed8\u5236\u5bbd\u5ea6<\/em>\u548c\u7ed8\u5236\u9ad8\u5ea6<\/em>\u3002\u8fd9\u4e24\u4e2a\u7ef4\u5ea6\u662f\u89c6\u56fe\u5728\u7ed8\u5236\u548c\u5e03\u5c40\u540e\u5728\u5c4f\u5e55\u4e0a\u7684\u5b9e\u9645\u5c3a\u5bf8\u3002\u5b83\u4eec\u7684\u503c\u6709\u53ef\u80fd\u548c\u6d4b\u91cf\u5bbd\u5ea6\u548c\u9ad8\u5ea6\u4e0d\u540c\u3002\u5bbd\u5ea6\u548c\u9ad8\u5ea6\u53ef\u4ee5\u901a\u8fc7\u8c03\u7528getWidth()\u548cgetHeight()\u83b7\u5f97\u3002<\/p>\n
\u4e3a\u4e86\u6d4b\u91cf\u4e00\u4e2a\u89c6\u56fe\u7684\u5c3a\u5bf8\uff0c\u9700\u8981\u8003\u8651\u5b83\u7684\u95f4\u9699\uff08padding\uff09\u3002\u53ef\u4ee5\u7528\u50cf\u7d20\u8868\u793a\u89c6\u56fe\u4e0a\u4e0b\u5de6\u53f3\u7684\u95f4\u9699\u3002\u53ef\u4ee5\u7528\u4e00\u5b9a\u50cf\u7d20\u7684\u95f4\u9699\u6765\u4ee3\u66ff\u89c6\u56fe\u7684\u5185\u5bb9\u3002\u6bd4\u5982\u8bf4\uff0c\u503c\u4e3a2\u7684\u5de6\u4fa7\u95f4\u9699\u53ef\u4ee5\u5c06\u89c6\u56fe\u7684\u5185\u5bb9\u81ea\u5de6\u4fa7\u8fb9\u7f18\u5411\u53f3\u63a82\u4e2a\u50cf\u7d20\u3002\u53ef\u4ee5\u7528setPadding(int, int, int, int)\u65b9\u6cd5\u6765\u8bbe\u5b9a\u95f4\u9699\uff0c\u800c\u901a\u8fc7getPaddingLeft()\u3001getPaddingTop()\u3001getPaddingRight()\u548cgetPaddingBottom()\u65b9\u6cd5\u53ef\u4ee5\u83b7\u5f97\u95f4\u9699\u7684\u503c\u3002<\/p>\n
\u5c3d\u7ba1\u4e00\u4e2a\u89c6\u56fe\u53ef\u4ee5\u5b9a\u4e49\u95f4\u9699\uff0c\u4e0d\u8fc7\u5b83\u4e0d\u652f\u6301\u4efb\u4f55\u7c7b\u578b\u7684\u8fb9\u8ddd\uff08margin\uff09\u3002\u4f46\u89c6\u56fe\u7ec4\u652f\u6301\u8fb9\u8ddd\u3002\u53c2\u8003ViewGroup\u548cViewGroup.MarginLayoutParams\u4ee5\u83b7\u5f97\u8fdb\u4e00\u6b65\u7684\u4fe1\u606f\u3002<\/p>\n
\u5173\u4e8e\u7ef4\u5ea6\u7684\u66f4\u591a\u4fe1\u606f\uff0c\u8bf7\u53c2\u89c1\u201c\u7ef4\u5ea6\u7684\u503c\u201d\u3002<\/p>\n
\u2190 \u8fd4\u56de\u201c\u7528\u6237\u754c\u9762\u201d<\/a><\/p>\n
\u672c\u9875\u90e8\u5206\u5185\u5bb9\u6839\u636eAndroid Open Source Project<\/a>\u521b\u4f5c\u5e76\u5171\u4eab\u7684\u5185\u5bb9\u4fee\u6539\uff0c\u5e76\u5728\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":"
wrap_content \u4f7f\u89c6\u56fe\u81ea\u52a8\u8c03\u8282\u5c3a\u5bf8\u5230\u5185\u5bb9\u6240\u9700\u7684\u5927\u5c0f\u5e03\u5c40\uff08layout\uff09\u662f\u4e00\u4e2a\u6d3b\u52a8\u7684\u7528\u6237\u754c\u9762\u7684\u7ed3\u6784\u3002\u5b83 … \u7ee7\u7eed\u9605\u8bfb\u201c\u58f0\u660e\u5e03\u5c40\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],"_links":{"self":[{"href":"http:\/\/leybreeze.com\/blog\/index.php?rest_route=\/wp\/v2\/posts\/287"}],"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=287"}],"version-history":[{"count":9,"href":"http:\/\/leybreeze.com\/blog\/index.php?rest_route=\/wp\/v2\/posts\/287\/revisions"}],"predecessor-version":[{"id":290,"href":"http:\/\/leybreeze.com\/blog\/index.php?rest_route=\/wp\/v2\/posts\/287\/revisions\/290"}],"wp:attachment":[{"href":"http:\/\/leybreeze.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=287"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/leybreeze.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=287"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/leybreeze.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=287"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
- fill_parent<\/span><\/em> <\/span>\uff08\u5728API Level 8\u4e2d\u91cd\u547d\u540d\u4e3amatch_parent<\/em>\uff09\u4f7f\u89c6\u56fe\u53d8\u4e3a\u5176\u7236\u89c6\u56fe\u6240\u5141\u8bb8\u7684\u6700\u5927\u5c3a\u5bf8<\/li>\n<\/ul>\n