去掉屏幕上的title bar有3个方法:
1. Java代码实现
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.main);
//...
}
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.main);
//...
}
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:
<?
xml
version
="1.0"
encoding
="utf-8"
?>
< resources >
< style name ="NoTitle" parent ="android:Theme" >
< item name ="android:windowNoTitle" >true </ item >
</ style >
</ resources >
< resources >
< style name ="NoTitle" parent ="android:Theme" >
< item name ="android:windowNoTitle" >true </ item >
</ style >
</ resources >
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/NoTitle" />
android:configChanges ="orientation|keyboardHidden"
android:theme ="@style/NoTitle" />
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" />
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" >
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
本文转自 Icansoft 51CTO博客,原文链接: http://blog.51cto.com/android/635864