新手学习之作,本文章参考http://android.blog.51cto.com/268543/636134
本文解决activity全屏显示问题
去掉屏幕上的title bar有3个方法:
1. Java代码实现
@Override publicvoid onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); requestWindowFeature(Window.FEATURE_NO_TITLE); setContentView(R.layout.main); //... }
留意这语句所在的位置的,似乎所有requestWindowFeature的操作都要放在setContentView的前面。
但使用这种方法,用户体验不太好,在Activity将要显示时,仍然会出现title bar,然后再去掉的。
2. 自定义style配置文件
在\res\values里面的style.xml添加:
<resources> <!-- Base application theme, dependent on API level. This theme is replaced by AppBaseTheme from res/values-vXX/styles.xml on newer devices. --> <style name="AppBaseTheme" parent="android:Theme.Light"> <!-- Theme customizations available in newer API levels can go in res/values-vXX/styles.xml, while customizations related to backward-compatibility can go here. --> </style> <!-- Application theme. --> <style name="AppTheme" parent="AppBaseTheme"> <!-- All customizations that are NOT specific to a particular API-level can go here. --> </style> <style name="AppTheme.NoTitleBar" parent="AppBaseTheme"> <item name="android:windowNoTitle">true</item> <!-- All customizations that are NOT specific to a particular API-level can go here. --> </style> </resources>
这里应该注意,改的最好是Application theme
然后在AndroidManifest.xml文件里,给需要去掉title bar的activity的节点上加上android:theme="@style/NoTitle,代码如下:
<activity android:name=".MainActivity" android:configChanges="orientation|keyboardHidden" android:theme="@style/AppTheme.NoTitleBar"/> ...
3. 直接在AndroidManifest.xml中进行修改
原来我们可以无需自定义style配置的,直接调用系统的就行了:
<activity android:name=".MainActivity" android:configChanges="orientation|keyboardHidden" android:theme="@android:style/Theme.NoTitleBar"/> ...
如果我们要设置整个Application都去掉title bar,那么就设置application:
<application android:icon="@drawable/lightbulb"android:label="@string/app_name" android:theme="@android:style/Theme.NoTitleBar"> ...
title bar还能够自定义的,请查看文章《自定义Activity标题栏(Title bar)》http://android.blog.51cto.com/268543/636134
时间: 2024-10-15 21:57:14