Android自定义Activity窗口标题

通常窗口标题是在AndroidManifest.xml中通过android:label="@string/app_name"或setText方法来设置，如果我们想在窗体标题中放置自定义标题如：图片或按钮等之类的组件，就无从下手了。

下面在layout文件夹中有两个界面配置文件，main.xml是主窗口的界面，title.xml是主窗口的标题。

main.xml

xml  version = "1.0"  encoding = "utf-8" ?>
< LinearLayout  xmlns:android = "http://schemas.android.com/apk/res/android"
    android:layout_width = "fill_parent"
    android:layout_height = "fill_parent" >
    < Button
        android:text = "@+id/Button01"
        android:id = "@+id/Button01"
        android:layout_width = "wrap_content"
        android:layout_height = "wrap_content"
        />
LinearLayout >

title.xml

xml  version = "1.0"  encoding = "utf-8" ?>
< LinearLayout  xmlns:android = "http://schemas.android.com/apk/res/android"
    android:layout_width = "wrap_content"
    android:layout_height = "wrap_content" >
    < TextView
        android:id = "@+id/text"
        android:layout_width = "wrap_content"
        android:layout_height = "wrap_content"
        android:layout_alignParentLeft = "true"
        android:text = "自定义头"  />
LinearLayout >

接下来看下我们的实例程序。

package  com.example;

import  android.app.Activity;
import  android.content.Intent;
import  android.os.Bundle;
import  android.view.Window;

public  class  main  extends  Activity {
    /** Called when the activity is first created. */
    @Override
    public  void  onCreate(Bundle savedInstanceState) {
        super .onCreate(savedInstanceState);
        requestWindowFeature(Window.FEATURE_CUSTOM_TITLE); /
        setContentView(R.layout.main);
        getWindow().setFeatureInt(Window.FEATURE_CUSTOM_TITLE,
                R.layout.title);
    }
}