Question

public class Anime扩展了Activity {

private Button button;  

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);

    button = (Button) findViewById(R.id.button);
    button.setOnClickListener(new View.OnClickListener() { 
        public void onClick(View v) { 
            final CharSequence[] items = {"Red", "Green", "Blue"};              
            //Toast.makeText(Anime.this, "KKKKKKK", Toast.LENGTH_SHORT).show(); 
            AlertDialog.Builder builder = new AlertDialog.Builder(Anime.this);              
            builder.setTitle("Pick a color"); 
            builder.setItems(items, new DialogInterface.OnClickListener() { 
                public void onClick(DialogInterface dialog, int item) { 
                    Toast.makeText(Anime.this,"jjjjjjjjjjjjjjjjj", Toast.LENGTH_SHORT).show(); 
                } 
            }); 
            AlertDialog alert = builder.create(); 
        } 
    });     

}

}

我有代码只是为了显示AlertDialog。它不起作用。但是我发表评论的祝酒词很好用。不明白。

感谢show（）！它现在正在运作。

Answer 1

您忘记显示对话框=）

alert.show();

Answer 2

您应致电alert.show()以显示提醒。

Answer 3

您似乎忘记在警报上致电.show()了。在AlertDialog alert = builder.create();：

之后尝试此操作

alert.show();

具有AlertDialog的按钮setOnClickListener不起作用

3 个答案: