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>