<?xml version="1.0" encoding="utf-8"?>   <resources>     <color name="colorPrimary">#3F51B5</color>     <color name="colorPrimaryDark">#303F9F</color>     <color name="colorAccent">#FF4081</color>     <color name="theRed">#ff6a69</color>   </resources> 

<?xml version="1.0" encoding="utf-8"?>   <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"     android:orientation="vertical"     android:layout_width="match_parent"     android:layout_height="wrap_content">     <TextView       android:id="@+id/actionBarId"       android:layout_width="match_parent"       android:layout_height="wrap_content"       />   </LinearLayout> 

  public class ActionBarLayOut extends LinearLayout {     public ActionBarLayOut(Context context, AttributeSet attrs){       super(context,attrs);       LayoutInflater.from(context).inflate(R.layout.actionbarlayout,this);     }   }

<?xml version="1.0" encoding="utf-8"?>   <com.example.test.ActionBarLayOut xmlns:android="http://schemas.android.com/apk/res/android"     xmlns:tools="http://schemas.android.com/tools"     android:id="@+id/activity_main"     android:layout_width="match_parent"     android:layout_height="match_parent"     android:orientation="vertical"     tools:context="com.example.test.MainActivity">     <TextView       android:layout_width="match_parent"       android:layout_height="wrap_content"       android:background="@color/theRed"       android:text="Hello World!" />   </com.example.test.ActionBarLayOut> 

public class MainActivity extends AppCompatActivity {     @Override     protected void onCreate(Bundle savedInstanceState) {       super.onCreate(savedInstanceState);       setContentView(R.layout.activity_main);       TextView textView = (TextView)findViewById(R.id.actionBarId);       int color = getResources().getColor(R.color.theRed);       setActionBarColor(textView,color);     }     protected void setActionBarColor(TextView textView, int ActionBarColor){       //----------------------------------隱藏標題欄----------------------------------------------       if (getSupportActionBar()!=null) {         getSupportActionBar().hide();       }       //------------------------------------------------------------------------------------------       //----------------------------------將狀態欄設置為透明--------------------------------------       if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {         Window window = getWindow();         window.clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS             | WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION);         window.getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN             | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION             | View.SYSTEM_UI_FLAG_LAYOUT_STABLE);         window.addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS);         window.setStatusBarColor(Color.TRANSPARENT);         window.setNavigationBarColor(Color.TRANSPARENT);       }       //------------------------------------------------------------------------------------------       /**        * 首先獲取狀態欄的高度statusBarHeight1，然后在狀態欄的位置放一個空的TextView，        * 高度設置為statusBarHeight1，然后將TextView的背景顏色進行設置，這樣就可以變相        * 的給狀態欄設置顏色        */       int statusBarHeight1 = -1;       //獲取status_bar_height資源的ID       int resourceId = getResources().getIdentifier("status_bar_height", "dimen", "android");       if (resourceId > 0) {         //根據資源ID獲取響應的尺寸值         statusBarHeight1 = getResources().getDimensionPixelSize(resourceId);       }       textView.setHeight(statusBarHeight1);       textView.setBackgroundColor(ActionBarColor);     }   }