Dialog的回退按钮的点击事件

onBackPressed()


package com.example.administrator.dialogtestpressback;

import android.app.Dialog;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.widget.Toast;

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        Dialog dialog = new Dialog(this){
            @Override
            public void onBackPressed() {
                super.onBackPressed();
                Toast.makeText(MainActivity.this,"Pressed",Toast.LENGTH_LONG).show();
            }
        };
        
        dialog.show();
    }
}


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