如何更改android操作栏的标题和图标 [英] How do I change the android actionbar title and icon
问题描述
我正在尝试在 Android 的 ActionBar 上做一些事情.
I'm trying to do some things on the ActionBar in Android.
我已经在操作栏的右侧添加了新项目.
I've already added new items in the right side of the action bar.
如何更改操作栏的左侧?我想更改图标和文本,我想在其他屏幕的操作栏中添加一个返回按钮"
How can I change the left side of the action bar? I want to change the icon and the text, and I want to add a "Back Button" in the action bar for the other screens
推荐答案
这个很简单实现
如果你想在代码中改变它,调用:
If you want to change it in code, call:
setTitle("My new title");
getActionBar().setIcon(R.drawable.my_icon);
并将值设置为您喜欢的任何值.
And set the values to whatever you please.
或者,在 Android 清单 XML 文件中:
Or, in the Android manifest XML file:
<activity android:name=".MyActivity"
android:icon="@drawable/my_icon"
android:label="My new title" />
要在您的应用中启用后退按钮,请使用:
To enable the back button in your app use:
getActionBar().setHomeButtonEnabled(true);
getActionBar().setDisplayHomeAsUpEnabled(true);
代码应该都放在你的 onCreate
中,这样标签/图标的变化对用户来说是透明的,但实际上它可以在 Activity 的生命周期中的任何地方调用.
The code should all be placed in your onCreate
so that the label/icon changing is transparent to the user, but in reality it can be called anywhere during the activity's lifecycle.
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