Android开发如何在4.0及以上系统中自定义TitleBar

本文将通过一个实例讲解怎么实现在4.0及以上系统版本中实现自定义TitleBar,这只是我自己找到的一种方法;

xml布局文件

activity_main.xml

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context=".MainActivity" >
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/hello_world" />
</RelativeLayout>

自定义的Titlebar的布局文件titlebar.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="48dp"
android:orientation="horizontal" >
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_weight="1.5"
android:src="@drawable/ic_action_search" />
<TextView
android:layout_width="wrap_content"
android:layout_height="48dp"
android:layout_weight="1.5"
android:paddingTop="1dp"
android:text="@string/app_name"
android:textSize="14sp" />
<EditText
android:id="@+id/searchparameter"
android:layout_width="wrap_content"
android:layout_height="48dp"
android:layout_margin="1dp"
android:layout_weight="5"
android:text="ABCDEFGHIJ"
android:textSize="14sp" />
<Button
android:id="@+id/button"
android:layout_width="wrap_content"
android:layout_height="48dp"
android:layout_margin="1dp"
android:layout_weight="2"
android:text="OK"
android:textSize="14sp" />
</LinearLayout>

为布局文件修改style.xml

此处的style.xml在values-11或者value-14中,否侧会报错:you cannot combine custom titles with other title features

<?xml version="1.0" encoding="utf-8"?>
<resources xmlns:android="http://schemas.android.com/apk/res/android">
<style name="CustomizedWindowTitleBackground">
<item name="android:background">#047BF0</item>
</style>
<style name="titlebarstyle" parent="android:Theme">
<item name="android:windowTitleSize">48dp</item>
<item name="android:windowTitleBackgroundStyle">@style/CustomizedWindowTitleBackground</item>
<!-- All customizations that are NOT specific to a particular API-level can go here. -->
</style>
</resources>

在AndroidManifest.xml添加主题样式

android:theme="@style/titlebarstyle"

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.titlebardemo"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="17" />
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name" >
<activity
android:name="com.example.titlebardemo.MainActivity"
android:label="@string/app_name"
android:theme="@style/titlebarstyle" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>

MainActivity.java中添加实现代码

protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_CUSTOM_TITLE);
setContentView(R.layout.activity_main);
getWindow().setFeatureInt(Window.FEATURE_CUSTOM_TITLE,
R.layout.titlebar);
}

代码中requestWindowFeature(Window.FEATURECUSTOMTITLE);和getWindow().setFeatureInt(Window.FEATURECUSTOMTITLE, R.layout.titlebar);位置是固定的.

希望读者朋友们通过这个例子能够对怎么实现在4.0及以上系统版本中自定义TitleBar有深刻理解和掌握。