update

app/build.gradle

@@ -30,4 +30,6 @@ dependencies {
     androidTestImplementation 'androidx.test.ext:junit:1.1.2'
     androidTestImplementation 'androidx.test.espresso:espresso-core:3.3.0'
 
+    implementation 'jp.wasabeef:glide-transformations:4.x.x'
+
 }

app/src/main/AndroidManifest.xml

@@ -4,18 +4,20 @@
 
     <application
         android:allowBackup="true"
+        android:name=".MyApplication"
         android:icon="@mipmap/ic_launcher"
         android:label="@string/app_name"
         android:roundIcon="@mipmap/ic_launcher_round"
         android:supportsRtl="true"
         android:theme="@style/AppTheme">
-        <activity android:name=".MainActivity">
+        <activity android:name=".views.OpenActivity">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
 
                 <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
         </activity>
+        <activity android:name=".views.MainActivity" />
     </application>
 
 </manifest>

app/src/main/java/com/yutou/nas_music_player/MyApplication.java

@@ -0,0 +1,11 @@
+package com.yutou.nas_music_player;
+
+import android.app.Application;
+
+public class MyApplication  extends Application {
+    @Override
+    public void onCreate() {
+        super.onCreate();
+
+    }
+}

app/src/main/java/com/yutou/nas_music_player/views/MainActivity.java

@@ -1,9 +1,11 @@
-package com.yutou.nas_music_player;
+package com.yutou.nas_music_player.views;
 
 import androidx.appcompat.app.AppCompatActivity;
 
 import android.os.Bundle;
 
+import com.yutou.nas_music_player.R;
+
 public class MainActivity extends AppCompatActivity {
 
     @Override

app/src/main/java/com/yutou/nas_music_player/views/OpenActivity.java

@@ -0,0 +1,17 @@
+package com.yutou.nas_music_player.views;
+
+import android.content.Intent;
+import android.os.Bundle;
+
+import androidx.annotation.Nullable;
+import androidx.appcompat.app.AppCompatActivity;
+
+public class OpenActivity extends AppCompatActivity {
+    @Override
+    protected void onCreate(@Nullable Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        Intent intent=new Intent(this,MainActivity.class);
+        startActivity(intent);
+        finish();
+    }
+}

app/src/main/res/layout/activity_main.xml

@@ -4,15 +4,26 @@
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
-    tools:context=".MainActivity">
+    tools:context=".views.MainActivity">
 
-    <TextView
+    <FrameLayout
-        android:layout_width="wrap_content"
+        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
+        android:layout_height="500dp"
-        android:text="Hello World!"
+        app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintLeft_toLeftOf="parent"
+        app:layout_constraintTop_toTopOf="parent">
-        app:layout_constraintRight_toRightOf="parent"
-        app:layout_constraintTop_toTopOf="parent" />
 
+        <ImageView
+            android:id="@+id/imageView"
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            android:src="@drawable/ic_launcher_background" />
+
+        <ImageView
+            android:id="@+id/imageView2"
+            android:layout_width="200dp"
+            android:layout_height="200dp"
+            android:layout_gravity="center"
+            android:src="@drawable/ic_launcher_foreground" />
+    </FrameLayout>
 </androidx.constraintlayout.widget.ConstraintLayout>

app/src/main/res/values/strings.xml

@@ -1,3 +1,3 @@
 <resources>
-    <string name="app_name">nas-music-player</string>
+    <string name="app_name">私人播放器</string>
 </resources>

build.gradle

@@ -5,7 +5,7 @@ buildscript {
         jcenter()
     }
     dependencies {
-        classpath "com.android.tools.build:gradle:4.0.1"
+        classpath 'com.android.tools.build:gradle:4.1.0'
 
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files