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\/\/ \u901a\u8fc7\u7c7b ProgressBarUpdater \u6765\u63a7\u5236\u7ebf\u7a0b\u7684\u8fd0\u884c\u72b6\u6001\r\npublic class ProgressBarUpdater implements Runnable {\r\n\tprivate volatile boolean paused = true;\r\n\tprivate volatile boolean finished = false;\r\n\r\n\tpublic void run() {\r\n\t\twhile (!finished) {\r\n\t\t\t\/\/ wait\r\n\t\t\ttry {\r\n\t\t\t\tThread.sleep(500);\r\n\t\t\t} catch (InterruptedException e1) {\r\n\t\t\t}\r\n\t\t\tif (!paused) {\r\n\t\t\t\/\/ Update the progress status\r\n\t\t\tProgressStatus = doWork();\r\n\t\t\tprogressBar.setProgress(ProgressStatus);\r\n\t\t\t}\r\n\t\t\t\twhile (paused && !finished) {\r\n\t\t\t\t\/\/ wait\r\n\t\t\t\ttry {\r\n\t\t\t\t\tThread.sleep(500);\r\n\t\t\t\t} catch (InterruptedException e) {\r\n\t\t\t\t\t}\r\n\t\t\t}\r\n\t\t}\r\n\t}\r\n\r\n\tpublic synchronized void pauseProgressBar() {\r\n\t\tpaused = true;\r\n\t}\r\n\r\n\tpublic synchronized void unPauseProgressBar() {\r\n\t\tpaused = false;\r\n\t\t\/\/ call notify() here when you switch to wait\/notify.\r\n\t}\r\n\r\n\tpublic void stopProgressBar() {\r\n\t\tfinished = true;\r\n\t\t\/\/ call notify() here too.\r\n\t}\r\n}\r\n\r\n@Override\r\npublic void onCreate(Bundle savedInstanceState) {\r\n\tsuper.onCreate(savedInstanceState);\r\n\tsetContentView(R.layout.main);\r\n\tsetTitle(getResources().getString(R.string.number));\r\n\r\n\tProgressStatus = 0;\r\n\tButton1 = (Button) this.findViewById(R.id.button1);\r\n\tButton1.setOnClickListener(this);\r\n\tButton2 = (Button) this.findViewById(R.id.button2);\r\n\tButton2.setOnClickListener(this);\r\n\tprogressBar = (ProgressBar) findViewById(R.id.progressBar1);\r\n\tprogressBar.setMax(100);\r\n\tprogressBar.setProgress(0);\r\n\t\/\/ progressBar.setSecondaryProgress(70);\r\n\r\n\t\/\/ \u4f7f\u7528 ProgressBarUpdater \u6765\u6784\u9020\u65b0\u7684\u7ebf\u7a0b\r\n\tProgressBarUpdater pbu = new ProgressBarUpdater();\r\n\tThread t = new Thread(pbu);\r\n\tt.start();\r\n\tpbu.pauseProgressBar();\r\n}\r\n\r\n\/\/ \u901a\u8fc7 ProgressBarUpdater \u6765\u63a7\u5236\u8fdb\u5ea6\u6761\u7684\u8fd0\u884c\u72b6\u6001\r\n@Override\r\npublic void onClick(View v) {\r\n\tif (v.getId() == R.id.button1) {\r\n\t\tpbu.unPauseProgressBar();\r\n\t}\r\n\tif (v.getId() == R.id.button2) {\r\n\t\tpbu.pauseProgressBar();\r\n\t}\r\n}<\/pre>\n\u8bf4\u660e\uff1a\u53ef\u4ee5\u901a\u8fc7\u4e00\u4e2a\u8f85\u52a9\u7c7b\u6765\u65b9\u4fbf\u5730\u6539\u53d8\u63a7\u5236 ProgressBar \u7684\u7ebf\u7a0b\u7684\u8fd0\u884c\u72b6\u6001\u3002\u4e00\u4e2a\u53ef\u4ee5\u6682\u505c\u4e0e\u4e2d\u65ad\u7684\u8fdb\u5ea6\u6761\u5728\u6709\u4e9b\u60c5\u51b5\u4e0b\u662f\u5f88\u5fc5\u8981\u7684\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"