之后，按一下按钮Android的开放上下文菜单 [英] Android opening context menu after button click

问题描述

我想打开快捷菜单，当我点击一个按钮，但我也必须知道哪些列表项的重点是，当我按一下按钮。你知道该怎么做？什么code应该在的onclick 的方法？

I want to open context menu when I click a button, but also I have to know which list item is focused when I click the button. Do you know how to do that? What code should be in onclick method?

推荐答案

我一直在寻找相同的，并且发现，而不是上下文菜单，你应该使用对话框

I was looking for the same, and found that instead of context menu, you should use Dialogs

final CharSequence[] items = {"Red", "Green", "Blue"};

AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle("Pick a color");
builder.setItems(items, new DialogInterface.OnClickListener() {
    public void onClick(DialogInterface dialog, int item) {
        Toast.makeText(getApplicationContext(), items[item], Toast.LENGTH_SHORT).show();
    }
});
AlertDialog alert = builder.create();
alert.show();

<一个href="http://developer.android.com/guide/topics/ui/dialogs.html#AlertDialog">http://developer.android.com/guide/topics/ui/dialogs.html#AlertDialog

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