Initial commit

.gitignore

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+*.iml
+.gradle
+/local.properties
+/.idea/workspace.xml
+/.idea/libraries
+.DS_Store
+/build
+/captures
+.externalNativeBuild

app/.gitignore

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+/build

app/build.gradle

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+apply plugin: 'com.android.application'
+
+android {
+    compileSdkVersion 24
+    buildToolsVersion "23.0.1"
+    defaultConfig {
+        applicationId "com.example.musicplay"
+        minSdkVersion 18
+        targetSdkVersion 24
+        versionCode 1
+        versionName "1.0"
+        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
+    }
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+        }
+    }
+}
+
+dependencies {
+    compile fileTree(dir: 'libs', include: ['*.jar'])
+    androidTestCompile('com.android.support.test.espresso:espresso-core:2.0', {
+        exclude group: 'com.android.support', module: 'support-annotations'
+    })
+    compile 'com.android.support:appcompat-v7:24.+'
+    testCompile 'junit:junit:4.12'
+}

app/proguard-rules.pro

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+# Add project specific ProGuard rules here.
+# By default, the flags in this file are appended to flags specified
+# in D:\sdk/tools/proguard/proguard-android.txt
+# You can edit the include path and order by changing the proguardFiles
+# directive in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# Add any project specific keep options here:
+
+# 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 *;
+#}

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

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+package com.example.musicplay;
+
+import android.content.Context;
+import android.support.test.InstrumentationRegistry;
+import android.support.test.runner.AndroidJUnit4;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import static org.junit.Assert.*;
+
+/**
+ * Instrumentation 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() throws Exception {
+        // Context of the app under test.
+        Context appContext = InstrumentationRegistry.getTargetContext();
+
+        assertEquals("com.example.musicplay", 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"
+    package="com.example.musicplay">
+
+    <application
+        android:allowBackup="true"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:supportsRtl="true"
+        android:theme="@style/AppTheme">
+        <activity    android:screenOrientation="portrait"
+            android:name=".MainActivity">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+        <service android:name=".PlayerService"></service>
+    </application>
+    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
+
+</manifest>

app/src/main/java/com/example/musicplay/FindLocalSongs.java

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+package com.example.musicplay;
+
+import android.content.ContentResolver;
+import android.content.Context;
+import android.database.Cursor;
+import android.provider.MediaStore;
+import android.widget.ListView;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+
+/**
+ * Created by 张蕾 on 2016/10/11.
+ * 访问歌曲信息
+ */
+
+public class FindLocalSongs {
+    public List<Mp3Info> getMp3Infos(ContentResolver contentResolver){
+        Cursor cursor = contentResolver.query(MediaStore.Audio.Media.EXTERNAL_CONTENT_URI,null,null,null,
+                MediaStore.Audio.Media.DEFAULT_SORT_ORDER);
+        List<Mp3Info> mp3Infos = new ArrayList<Mp3Info>();
+        for(int i=0;i<cursor.getCount();i++){
+            Mp3Info mp3Info = new Mp3Info();  //新建一个歌曲对象，将从cursor里读出来的数据存放进去，直到读取完毕
+            cursor.moveToNext();
+            long id=cursor.getLong(cursor.getColumnIndex(MediaStore.Audio.Media._ID));  //音乐id
+            String title=cursor.getString(cursor.getColumnIndex(MediaStore.Audio.Media.TITLE));  //音乐标题
+            String musician=cursor.getString(cursor.getColumnIndex(MediaStore.Audio.Media.ARTIST));//作曲家
+            long size=cursor.getLong(cursor.getColumnIndex(MediaStore.Audio.Media.SIZE));  //文件大小
+            String url=cursor.getString(cursor.getColumnIndex(MediaStore.Audio.Media.DATA));//文件路径
+            long duration=cursor.getLong(cursor.getColumnIndex(MediaStore.Audio.Media.DURATION));//时长
+            /*String album=cursor.getString(cursor.getColumnIndex(MediaStore.Audio.Media.ALBUM));  //唱片图片
+            long album_id=cursor.getLong(cursor.getColumnIndex(MediaStore.Audio.Media.ALBUM_ID));  //唱片图片id*/
+            int isMusic=cursor.getInt(cursor.getColumnIndex(MediaStore.Audio.Media.IS_MUSIC));
+
+            if(isMusic!=0&&duration/(1000*60)>=1){
+                mp3Info.setId(id);
+                mp3Info.setTitle(title);
+                mp3Info.setArtist(musician);
+                mp3Info.setSize(size);
+                mp3Info.setUrl(url);
+                mp3Info.setDuration(duration);
+                mp3Infos.add(mp3Info);
+            }
+        }
+        return mp3Infos;
+    }
+}