Question

我试图让对话框触发一个意图，然后关闭。

public class PinMessage extends DialogFragment {


public Dialog onCreateDialog(Bundle savedInstanceState) {
    // Use the Builder class for convenient dialog construction
    AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
    Random random = new Random();
    final int pin = random.nextInt(9000) +1000;
    builder.setMessage( "Your pin is " + (pin)+". Please note in case of password loss.")
    .setTitle("Security PIN")
           .setPositiveButton("OK", new DialogInterface.OnClickListener() {
               public void onClick(DialogInterface dialog, int id) {
                   SharedPreferences launch_track = PreferenceManager
                        .getDefaultSharedPreferences(MainActivity.context);
                SharedPreferences.Editor editor1 = launch_track.edit();
                editor1.putInt("pin", pin);
                editor1.commit();


                            //This triggers before the dialog closes
              Intent lock = new Intent(context,AppLockService.class);
                       context.startService(lock);


                   // FIRE ZE MISSILES!
               }

           }); 


    // Create the AlertDialog object and return it
    return builder.create();
}

}

单击“确定”按钮，除了触发意图和启动服务外，我还希望关闭对话框。

目前，当我按下OK时，意图被触发并且服务在后台启动，但对话框没有关闭，我必须按下电话按钮才能退出。请帮帮我。

Answer 1

public void onClick(DialogInterface dialog, int id)

正如您所看到的，您可以访问方法中的对话框，只需调用dismiss：

dialog.dismiss();

Answer 2

创建 AlertDialog

的引用

AlertDialog alertDialog = builder.create();
builder.setPositiveButton("OK", new OnClickListener() {

        @Override
        public void onClick(DialogInterface dialog, int which) {
            // TODO Auto-generated method stub
            // Start the Service and your required code
            alertDialog.dismiss();
        }
    });
return alertDialog;

或

您将通过 onClick
获得对话框参考
@Override public void onClick(DialogInterface dialog, int which) { // TODO Auto-generated method stub // Start the Service and your required code dialog.dismiss(); }

Answer 3

你可以用这个

来做

dialog.setOnDismissListener(new DialogInterface.OnDismissListener() {

    @Override
    public void onDismiss(DialogInterface dialog) {
        //your implementation while on dismiss  
    }
});

同时在dialog.dismiss();

中添加onClick

使用intent启动服务后关闭对话框

3 个答案: