android对话框自动关闭

android对话框自动关闭

记录：对话框弹出自动关闭： public class MainActivity extends AppCompatActivity { private Button dialog1,dialog2; private AlertDialog alert; private Timer timerl; private MyHandler handler; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); timerl=new Timer(); handler=new MyHandler(); dialog1=(Button)findViewById(R.id.dialog1); dialog1.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { showAlertDialog(); } }); } private void showAlertDialog(){ AlertDialog.Builder builder=new AlertDialog(this); builder.setTitle("confirm!"); builder.setMessage("welcome to use~"); builder.setCancelable(false); alert=builder.create(); alert.show(); timerl.schedule(new CloseDialogTask(),4000); } private class CloseDialogTask extends TimerTask { private void run(){ handler.sendEmptyMessage(0); } } private class MyHandler extends Handler{ public void handleMessage(Message msg){ alert.dismiss(); } }                                                                                                                                                                        -END

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