Question

我正在尝试在我的Android应用中添加警告对话框。它工作正常，但问题是在对话框显示后，我点击主按钮它显示两个对话框一个唯一的标题，另一个是标题与消息内容和2个按钮。我已经尝试了这么多教程，但所有同样的问题我无法弄清楚。这是我的代码：

AlertDialog.Builder alertDialog = new AlertDialog.Builder(BuyFull.this);

alertDialog.setTitle(R.string.app_name);

alertDialog.setMessage(R.string.sms);    

alertDialog.setPositiveButton(R.string.buy, new DialogInterface.OnClickListener() {
    public void onClick(DialogInterface dialog,int which) {
        Toast.makeText(getApplicationContext(), "You clicked on buy", Toast.LENGTH_SHORT).show();
    }
});

alertDialog.setNegativeButton(R.string.cancel, new DialogInterface.OnClickListener() {
    public void onClick(DialogInterface dialog, int which) {
        Toast.makeText(getApplicationContext(), "You clicked on NO", Toast.LENGTH_SHORT).show();
        dialog.cancel();
    }
});

alertDialog.show();

Answer 1

1）尝试删除dialog.cancel()

2）而不是alertDialog.show()：

AlertDialog dialog = alertDialog.create();
dialog.show()

希望这有帮助

Answer 2

试试这个，

AlertDialog alertDialog = new AlertDialog.Builder(BuyFull.this);

alertDialog.setTitle(R.string.app_name);

alertDialog.setMessage(R.string.sms);    

alertDialog.setPositiveButton(R.string.buy, new DialogInterface.OnClickListener() {
    public void onClick(DialogInterface dialog,int which) {
        Toast.makeText(getApplicationContext(), "You clicked on buy", Toast.LENGTH_SHORT).show();
    }
});

alertDialog.setNegativeButton(R.string.cancel, new DialogInterface.OnClickListener() {
    public void onClick(DialogInterface dialog, int which) {
        Toast.makeText(getApplicationContext(), "You clicked on NO", Toast.LENGTH_SHORT).show();
        dialog.cancel();
    }
});

alertDialog.show();

Android警报对话框问题

2 个答案: