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                合規國際互聯網加速 OSASE為企業客戶提供高速穩定SD-WAN國際加速解決方案。 廣告
                **顯示操作進度的對話框** 1、使用上一篇創建的同一項目,在activity_main.xml文件中添加一個Button: ~~~ <Button android:id="@+id/btn_dialog3" android:layout_width="fill_parent" android:layout_height="wrap_content" android:onClick="onClick3" android:text="Click to display a detailed progress dialog" /> ~~~ 2、在MainActivity.java文件中添加具體的進度條實現代碼: 首先添加onClick3()方法: ~~~ public void onClick3(View v) { showDialog(1);// id為1,在調用回調方法onCreateDialog()時,將id傳進去,使其選擇case 1情況。 progressDialog.setProgress(0);// 從0開始 new Thread(new Runnable() { @Override public void run() { // TODO Auto-generated method stub for (int i = 1; i <= 10; i++) { try { Thread.sleep(1000); progressDialog.incrementProgressBy(100 / 10);// 步進為10 } catch (InterruptedException e) { // TODO: handle exception e.printStackTrace(); } } progressDialog.dismiss();// 銷毀對話框 } }).start(); } ~~~ 再在onCreateDialog()回調方法中添加id=1時的代碼(即實現顯示操作進度對話框的代碼): ~~~ case 1: progressDialog = new ProgressDialog(this); progressDialog.setIcon(R.drawable.ic_launcher); progressDialog.setTitle("Downloading files..."); progressDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);// 設置進度條樣式 progressDialog.setButton(DialogInterface.BUTTON_POSITIVE, "OK",// 設置OK按鈕 new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { // TODO Auto-generated method stub Toast.makeText(getBaseContext(), "OK clicked!", Toast.LENGTH_SHORT).show(); } }); progressDialog.setButton(DialogInterface.BUTTON_NEGATIVE, "Cancel",// 設置取消按鈕 new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { // TODO Auto-generated method stub Toast.makeText(getBaseContext(), "Cancel clicked!", Toast.LENGTH_SHORT).show(); } }); return progressDialog; ~~~ 3、運行一下,效果如下: ![](https://box.kancloud.cn/2016-08-23_57bc06b5c20e6.jpg) **[點擊此處下載完整代碼~](http://download.csdn.net/detail/u012904198/7307257)**
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                              哎呀哎呀视频在线观看