1 public class AlertActivity extends AppCompatActivity implements OnClickListener {
2
3 private TextView tv_alert;
4
5 @Override
6 protected void onCreate(Bundle savedInstanceState) {
7 super.onCreate(savedInstanceState);
8 setContentView(R.layout.activity_alert);
9 findViewById(R.id.btn_alert).setOnClickListener(this);
10 tv_alert = (TextView) findViewById(R.id.tv_alert);
11 }
12
13 @Override
14 public void onClick(View v) {
15 if (v.getId() == R.id.btn_alert) {
16 AlertDialog.Builder builder = new AlertDialog.Builder(this);
17 builder.setTitle("尊敬的用户");
18 builder.setMessage("你真的要卸载我吗？");
19 builder.setPositiveButton("残忍卸载", new DialogInterface.OnClickListener() {
20 @Override
21 public void onClick(DialogInterface dialog, int which) {
22 tv_alert.setText("虽然依依不舍，还是只能离开了");
23 }
24 });
25 builder.setNegativeButton("我再想想", new DialogInterface.OnClickListener() {
26 @Override
27 public void onClick(DialogInterface dialog, int which) {
28 tv_alert.setText("让我再陪你三百六十五个日夜");
29 }
30 });
31 AlertDialog alert = builder.create();
32 alert.show();
33 }
34 }
35
36 }
