在 Android 应用中使用警示框 Alerts，androidalerts,Alerts 是 And

在 Android 应用中使用警示框 Alerts，androidalerts,Alerts 是 And

Alerts 是 Android 提供的一些标准提示对话框

//declared as final to be able to reference it in inner class declartations of the handlers      final AlertDialog.Builder builder=new AlertDialog.Builder(this);     builder.setTitle("Alert Dialog");     builder.setMessage("This is the alert's body");     builder.setIcon(android.R.drawable.ic_dialog_alert);     builder.setPositiveButton("OK", new OnClickListener() {   @Override   public void onClick(DialogInterface dialog, int which) {    TextView txt=(TextView)findViewById(R.id.txt);    txt.setText("You clicked Ok");   }  });     builder.setNegativeButton("Cancel", new OnClickListener() {   @Override   public void onClick(DialogInterface dialog, int which) {    // TODO Auto-generated method stub    TextView txt=(TextView)findViewById(R.id.txt);    txt.setText("You clicked Cancel");   }  });     builder.setNeutralButton("Do something", new OnClickListener() {   @Override   public void onClick(DialogInterface dialog, int which) {    // TODO Auto-generated method stub    TextView txt=(TextView)findViewById(R.id.txt);    txt.setText("Neutral Button Clicked");    AlertDialog ad=builder.create();    ad.cancel();   }  });     builder.setOnCancelListener(new OnCancelListener() {   @Override   public void onCancel(DialogInterface dialog) {    // TODO Auto-generated method stub    TextView txt=(TextView)findViewById(R.id.txt);    txt.setText(txt.getText()+" the cancel listner invoked");   }  });     builder.show();//该片段来自于http://byrx.net