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

 1 package com.example.status;
 2 import android.annotation.TargetApi;
 3 import android.app.Activity;
 4 import android.content.Context;
 5 import android.os.Build;
 6 import android.view.View;
 7 import android.view.Window;
 8 import android.view.WindowManager;
 9 public class ImmersedStatusbarUtils {
10      
11     /**
12      * 在{@link Activity#setContentView}之后调用
13      * 
14      * @param activity
15      *            要实现的沉浸式状态栏的Activity
16      * @param titleViewGroup
17      *            头部控件的ViewGroup,若为null,整个界面将和状态栏重叠
18      */
19     @TargetApi(Build.VERSION_CODES.KITKAT)
20     public static void initAfterSetContentView(Activity activity,
21             View titleViewGroup) {
22         if (activity == null)
23             return;
24         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
25             Window window = activity.getWindow();
26             window.addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
27         }
28         if (titleViewGroup == null)
29             return;
30         // 设置头部控件ViewGroup的PaddingTop,防止界面与状态栏重叠
31         int statusBarHeight = getStatusBarHeight(activity);
32         titleViewGroup.setPadding(0, statusBarHeight, 0, 0);
33  
34     }
35  
36     /**
37      * 获取状态栏高度
38      * 
39      * @param context
40      * @return
41      */
42     private static int getStatusBarHeight(Context context) {
43         int result = 0;
44         int resourceId = context.getResources().getIdentifier(
45                 "status_bar_height", "dimen", "android");
46         if (resourceId > 0) {
47             result = context.getResources().getDimensionPixelSize(resourceId);
48         }
49         return result;
50     }
51 }

调用实例，使用步骤一编写的相关方法。

 1 package com.example.status;
 2  
 3 import android.app.Activity;
 4 import android.os.Bundle;
 5 import android.view.Menu;
 6 import android.view.View;
 7 import android.view.Window;
 8  
 9 public class MainActivity extends Activity {
10  
11     @Override
12     protected void onCreate(Bundle savedInstanceState) {
13         super.onCreate(savedInstanceState);
14         requestWindowFeature(Window.FEATURE_NO_TITLE);
15         setContentView(R.layout.activity_main);
16         View topView = findViewById(R.id.lin);
17         ImmersedStatusbarUtils.initAfterSetContentView(this, topView);
18     }
19  
20     @Override
21     public boolean onCreateOptionsMenu(Menu menu) {
22         // Inflate the menu; this adds items to the action bar if it is present.
23         getMenuInflater().inflate(R.menu.main, menu);
24         return true;
25     }
26  
27 }

对应的布局文件

 1 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
 2     xmlns:tools="http://schemas.android.com/tools"
 3     android:layout_width="match_parent"
 4     android:layout_height="match_parent"
 5     android:orientation="vertical" >
 6  
 7     <LinearLayout
 8         android:id="@+id/lin"
 9         android:layout_width="match_parent"
10         android:layout_height="wrap_content"
11         android:background="#ff123654" >
12  
13         <TextView
14             android:id="@+id/title"
15             android:layout_width="match_parent"
16             android:layout_height="45.0dp"
17             android:background="#ff123654"
18             android:gravity="center"
19             android:text="我是头部控件"
20             android:textColor="#ffffffff" />
21     </LinearLayout>
22  
23 </LinearLayout>