Android 中沉浸式状态栏实现

Android 中沉浸式状态栏实现方式如下

计算状态栏高度及调用沉浸式状态栏的相关API方法

package com.example.status;
import android.annotation.TargetApi;
import android.app.Activity;
import android.content.Context;
import android.os.Build;
import android.view.View;
import android.view.Window;
import android.view.WindowManager;
public class ImmersedStatusbarUtils {
     
    /**
     * 在{@link Activity#setContentView}之后调用
     * 
     * @param activity
     *            要实现的沉浸式状态栏的Activity
     * @param titleViewGroup
     *            头部控件的ViewGroup,若为null,整个界面将和状态栏重叠
     */
    @TargetApi(Build.VERSION_CODES.KITKAT)
    public static void initAfterSetContentView(Activity activity,
            View titleViewGroup) {
        if (activity == null)
            return;
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
            Window window = activity.getWindow();
            window.addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
        }
        if (titleViewGroup == null)
            return;
        // 设置头部控件ViewGroup的PaddingTop,防止界面与状态栏重叠
        int statusBarHeight = getStatusBarHeight(activity);
        titleViewGroup.setPadding(0, statusBarHeight, 0, 0);
 
    }
 
    /**
     * 获取状态栏高度
     * 
     * @param context
     * @return
     */
    private static int getStatusBarHeight(Context context) {
        int result = 0;
        int resourceId = context.getResources().getIdentifier(
                "status_bar_height", "dimen", "android");
        if (resourceId > 0) {
            result = context.getResources().getDimensionPixelSize(resourceId);
        }
        return result;
    }
}

调用实例，使用步骤一编写的相关方法。

package com.example.status;
 
import android.app.Activity;
import android.os.Bundle;
import android.view.Menu;
import android.view.View;
import android.view.Window;
 
public class MainActivity extends Activity {
 
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        requestWindowFeature(Window.FEATURE_NO_TITLE);
        setContentView(R.layout.activity_main);
        View topView = findViewById(R.id.lin);
        ImmersedStatusbarUtils.initAfterSetContentView(this, topView);
    }
 
    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }
 
}

对应的布局文件

<LinearLayout 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:orientation="vertical" >
 
    <LinearLayout
        android:id="@+id/lin"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="#ff123654" >
 
        <TextView
            android:id="@+id/title"
            android:layout_width="match_parent"
            android:layout_height="45.0dp"
            android:background="#ff123654"
            android:gravity="center"
            android:text="我是头部控件"
            android:textColor="#ffffffff" />
    </LinearLayout>
 
</LinearLayout>