如何在Android中显示警告对话框？ [英] how to display Alert Dialog in android?

问题描述

我要显示对话框/弹出窗口的消息，用户，显示您确定要删除该条目？与删除一个按钮。在点击按钮删除，应该删除该条目，否则什么都没有。

I want to display dialog/popup window for message to user that shows "Are you sure you want to delete this entry?" with One button of 'Delete' . On click of button Delete, it should delete that entry otherwise nothing.

我已经写了这些按钮的点击监听，但我不知道如何调用对话框或弹出式和它的功能。

I have written a click listener of those buttons but I dont know how to invoke dialog or popup and its functionality.

推荐答案

您可以使用警报生成器这样的：

You could use the alert builder for this:

new AlertDialog.Builder(context)
    .setTitle("Delete entry")
    .setMessage("Are you sure you want to delete this entry?")
    .setPositiveButton(android.R.string.yes, new DialogInterface.OnClickListener() {
        public void onClick(DialogInterface dialog, int which) { 
            // continue with delete
        }
     })
    .setNegativeButton(android.R.string.no, new DialogInterface.OnClickListener() {
        public void onClick(DialogInterface dialog, int which) { 
            // do nothing
        }
     })
    .setIcon(android.R.drawable.ic_dialog_alert)
     .show();

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