用Android翻译动画

Question

I am new in android. I want to use the translate animation in android. I want that the red rounded image comes from center of the layout. It comes . But i want that the red rounded image comes back from the center image which color is green. Thanks in Advance.

Answer 1

I would recommend you Handler and it's postDelayed method. So the code should look like this

Handler handler = new Handler();
handler.postDelayed(new Runnable() {

    public void run() {

        if(dialog != null && dialog.isShowing())
        dialog.dissmiss();
    }
}, 10000);

where handler should be created on the UI thread.

Answer 2

final AlertDialog.Builder dialog = new AlertDialog.Builder(this)
 .setTitle("Auto-closing Dialog")
 .setMessage("After 10 second, this dialog will be closed");

dialog.setPositiveButton("Confirm", new DialogInterface.OnClickListener() {
    @Override
    public void onClick(DialogInterface dialog, int whichButton) {
        // tasks to do when Confirm clicked
    }
});     
final AlertDialog alert = dialog.create();
alert.show();

// Hide after 10 seconds
final Handler handler  = new Handler();
final Runnable runnable = new Runnable() {
    @Override
    public void run() {
        if (alert.isShowing()) {
            alert.dismiss();
        }
    }
};

alert.setOnDismissListener(new DialogInterface.OnDismissListener() {
    @Override
    public void onDismiss(DialogInterface dialog) {
        handler.removeCallbacks(runnable);
    }
});

handler.postDelayed(runnable, 10000);

Answer 3

Create a handler, somewhere in activity oncreate method as follows:

handler = new Handler();

Now, show the dialog.

Later use this handler to dismiss dialog after 10 seconds as follows:

handler.postDelayed(new Runnable() {

   public void run() {
       if (dialog.isShowing())           
          dialog.dismiss(); // dismiss dialog

   } 
}, 10000);