改logo,启动页去白屏加logo

android/app/src/main/AndroidManifest.xml

@@ -22,7 +22,7 @@
 
     <application
         android:label="回乡"
-        android:icon="@mipmap/ic_launcher">
+        android:icon="@mipmap/app_icon">
         <activity
             android:name=".MainActivity"
             android:launchMode="singleTop"

android/app/src/main/res/drawable-v21/launch_background.xml

@@ -4,9 +4,9 @@
     <item android:drawable="?android:colorBackground" />
 
     <!-- You can insert your own image assets here -->
-    <!-- <item>
+    <item>
         <bitmap
             android:gravity="center"
-            android:src="@mipmap/launch_image" />
-    </item> -->
+            android:src="@mipmap/app_icon" />
+    </item>
 </layer-list>

android/app/src/main/res/drawable/launch_background.xml

@@ -4,14 +4,14 @@
     <item android:drawable="@android:color/white" />
 
     <!-- You can insert your own image assets here -->
-    <!-- <item>
+    <item>
         <bitmap
             android:gravity="center"
-            android:src="@mipmap/launch_image" />
-    </item> -->
-
-    <item>
-        <color android:color="@android:color/white"/>
+            android:src="@mipmap/app_icon" />
     </item>
 
+<!--    <item>-->
+<!--        <color android:color="@android:color/white"/>-->
+<!--    </item>-->
+
 </layer-list>