module init

.gitignore

@@ -0,0 +1,15 @@
+*.iml
+.gradle
+/local.properties
+/.idea/caches
+/.idea/libraries
+/.idea/modules.xml
+/.idea/workspace.xml
+/.idea/navEditor.xml
+/.idea/assetWizardSettings.xml
+.DS_Store
+/build
+/captures
+.externalNativeBuild
+.cxx
+local.properties

app/.gitignore

@@ -0,0 +1 @@
+/build

app/build.gradle

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+plugins {
+    id 'com.android.application'
+}
+
+android {
+    compileSdkVersion 30
+    buildToolsVersion "30.0.3"
+
+    defaultConfig {
+        applicationId "com.example.ringtone"
+        minSdkVersion 18
+        targetSdkVersion 30
+        versionCode 1
+        versionName "1.0"
+
+        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+    }
+    dataBinding {
+        enabled = true
+    }
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+        }
+    }
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
+}
+
+dependencies {
+
+    implementation 'androidx.appcompat:appcompat:1.2.0'
+    implementation 'com.google.android.material:material:1.2.1'
+    implementation 'androidx.constraintlayout:constraintlayout:2.0.4'
+    testImplementation 'junit:junit:4.+'
+    androidTestImplementation 'androidx.test.ext:junit:1.1.2'
+    androidTestImplementation 'androidx.test.espresso:espresso-core:3.3.0'
+}

app/proguard-rules.pro

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+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile

app/release/output-metadata.json

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+{
+  "version": 2,
+  "artifactType": {
+    "type": "APK",
+    "kind": "Directory"
+  },
+  "applicationId": "com.example.ringtone",
+  "variantName": "processReleaseResources",
+  "elements": [
+    {
+      "type": "SINGLE",
+      "filters": [],
+      "versionCode": 1,
+      "versionName": "1.0",
+      "outputFile": "app-release.apk"
+    }
+  ]
+}

app/src/androidTest/java/com/example/ringtone/ExampleInstrumentedTest.java

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+package com.example.ringtone;
+
+import android.content.Context;
+
+import androidx.test.platform.app.InstrumentationRegistry;
+import androidx.test.ext.junit.runners.AndroidJUnit4;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import static org.junit.Assert.*;
+
+/**
+ * Instrumented test, which will execute on an Android device.
+ *
+ * @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
+ */
+@RunWith(AndroidJUnit4.class)
+public class ExampleInstrumentedTest {
+    @Test
+    public void useAppContext() {
+        // Context of the app under test.
+        Context appContext = InstrumentationRegistry.getInstrumentation().getTargetContext();
+        assertEquals("com.example.ringtone", appContext.getPackageName());
+    }
+}

app/src/main/AndroidManifest.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    package="com.example.ringtone">
+
+    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
+    <uses-permission android:name="android.permission.INTERNET" />
+    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
+    <uses-permission android:name="android.permission.MODIFY_AUDIO_SETTINGS"/>
+    <uses-permission android:name="android.permission.WRITE_SETTINGS"
+        tools:ignore="ProtectedPermissions"/>
+
+    <application
+        android:allowBackup="true"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:roundIcon="@mipmap/ic_launcher_round"
+        android:supportsRtl="true"
+        android:theme="@style/Theme.Ringtone"
+        android:requestLegacyExternalStorage="true"
+        android:usesCleartextTraffic="true">
+        <activity android:name=".MainActivity">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+    </application>
+
+</manifest>

app/src/main/java/com/example/ringtone/FileUriPathUtils.java

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+package com.example.ringtone;
+
+import android.content.Context;
+import android.database.Cursor;
+import android.net.Uri;
+import android.provider.MediaStore;
+
+import java.io.File;
+import java.net.URI;
+import java.net.URISyntaxException;
+
+/**
+ * Android之uri、file、path相互转化
+ */
+public final class FileUriPathUtils {
+    private FileUriPathUtils() {
+        throw new UnsupportedOperationException("FileUriPathUtils  can't instantiate me...");
+    }
+
+    public final String getUriToPath(Context context, Uri uri) {
+        String path = null;
+        Cursor cursor = context.getContentResolver().query(uri, null, null, null, null);
+        if (cursor == null) {
+            return null;
+        }
+        if (cursor.moveToFirst()) {
+            try {
+                path = cursor.getString(cursor.getColumnIndex(MediaStore.Images.Media.DATA));
+            } catch (Exception e) {
+                e.printStackTrace();
+            }
+        }
+        cursor.close();
+        return path;
+    }
+
+    /**
+     * uri转file: * * @param uri
+     */
+    public final File getUriToFile(Uri uri) {
+        File file = null;
+        try {
+            file = new File(new URI(uri.toString()));
+        } catch (URISyntaxException e) {
+            e.printStackTrace();
+        }
+        return file;
+    }
+
+    /**
+     * file转uri: * * @param file
+     */
+    public final URI getFileToUri(File file) {
+        URI uri = file.toURI();
+        return uri;
+    }
+
+    /**
+     * file转path: * * @param file
+     */
+    public final String getFileToPath(File file) {
+        String path = file.getPath();
+        return path;
+    }
+
+    /**
+     * path转uri: * * @param path
+     */
+    public final Uri getPathToUri(String path) {
+        Uri uri = Uri.parse(path);
+        return uri;
+    }
+
+    /**
+     * path转file: * * @param path
+     */
+    public final File getPathToFile(String path) {
+        File file = new File(path);
+        return file;
+    }
+
+}