setDisplayHomeAsUpEnabled和setHomeButtonEnabled有什么区别? [英] What is the difference between setDisplayHomeAsUpEnabled and setHomeButtonEnabled?

问题描述

我想启用操作栏中的主页按钮.我正在使用此代码:

I want to enable the home button in the Action bar. I'm using this code:

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.ICE_CREAM_SANDWICH) {
            actionbar.setHomeButtonEnabled(true);
            actionbar.setDisplayHomeAsUpEnabled(true);
}

在这种情况下，我使用setHomeButtonEnabled和setDisplayHomeAsUpEnabled在ActionBar中的图标上添加后退标记.如果我仅使用setDisplayHomeAsUpEnabled，也可以使用吗?是否需要将setHomeButtonEnabled设置为true?

In this I'm using setHomeButtonEnabled and setDisplayHomeAsUpEnabled to put a back mark at icon in ActionBar. If I use only setDisplayHomeAsUpEnabled then also will it work? Is there a need to set setHomeButtonEnabled to true?

两者之间有什么区别?

推荐答案

对于您想要做的事情，actionBar.setDisplayHomeAsUpEnabled(true)就足够了.

区别在于:
actionBar.setHomeButtonEnabled(true)只会使图标可点击，图标背景上的颜色作为点击的反馈.
actionBar.setDisplayHomeAsUpEnabled(true)将使图标可单击，并在图标左侧添加<.

For what you want to do, actionBar.setDisplayHomeAsUpEnabled(true) is enough.

For the difference :
actionBar.setHomeButtonEnabled(true) will just make the icon clickable, with the color at the background of the icon as a feedback of the click.
actionBar.setDisplayHomeAsUpEnabled(true) will make the icon clickable and add the < at the left of the icon.

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