Android - 如何在完成 Activity 前显示 AlertDialog？

Question

我正在尝试实现这段代码

    if(someCondition){
        AlertDialog.Builder builder = new AlertDialog.Builder(this);
        builder.setMessage("message")
        .setPositiveButton("Yes", this)
        .setNegativeButton("No", this);
        builder.show();
    }
    finish();

问题是 Activity 在对话框显示之前调用了 finish()，所以它抛出了以下异常

MyActivity has leaked window com.android.internal.policy.impl.PhoneWindow$DecorView@40704090 that was originally added here

如何处理？

Answer 1

if(someCondition){
    AlertDialog.Builder builder = new AlertDialog.Builder(this);
    builder.setMessage("message")
    .setPositiveButton("Yes", this)
    .setNegativeButton("No", this);
    builder.show();
} else {
    finish(); 
}

然后在按钮的处理程序中再次单击完成。