Android Studio 基础之获取各个音量的最大值、最小值、以及当前音量值，并设置音量值，监听音量变化的方法整理

Bertha 。 2022-11-29 13:13 1040阅读 0赞

![20200821162944429.png][]

# Android Studio 基础 之 获取各个音量的最大值、最小值、以及当前音量值，并设置音量值，监听音量变化的方法整理 #

**目录**

Android Studio 基础 之 获取各个音量的最大值、最小值、以及当前音量值，并设置音量值的方法整理

一、简单介绍

二、实现原理

三、使用注意

四、效果预览

五、实现步骤，

六、关键代码

--------------------

## 一、简单介绍 ##

Android 开发中的一些基础操作，使用整理，便于后期使用。

本节介绍，Android 开发中，获取手机设备的各种音量值，最大最小当前值什么的，最后举例设置音乐音量值的方法（按音量上下键设置的那个音量），方法不唯一，欢迎指正。

## 二、实现原理 ##

1、 getSystemService(Context.AUDIO\_SERVICE)  获得音频管理 AudioManager

2、根据 AudioManager.getStreamMaxVolume(AudioManager.STREAM\_XXX) 得到各种音量的最大值

3、根据 AudioManager.getStreamMinVolume(AudioManager.STREAM\_XXX) 得到各种音量的最小值

4、根据 AudioManager.getStreamVolume(AudioManager.STREAM\_XXX) 得到各种音量的当前值

5、根据 AudioManager.setStreamVolume(AudioManager.STREAM\_XXX,Value,AudioManager.FLAG\_XXX) 设置各个音量值

6、intent.getAction().equals(ACTION\_VOLUME\_CHANGED) 广播监听音量变化

## 三、使用注意 ##

1、AudioManager.getStreamMinVolume(AudioManager.STREAM\_XXX) 得到各种音量的最小值，好像 minSdkVersion 需要 minSdkVersion 28

## 四、效果预览 ##

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3UwMTQzNjEyODA_size_16_color_FFFFFF_t_70][]

## 五、实现步骤， ##

1、打开 Android Studio 新建一个工程，或者新建一个模块

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3UwMTQzNjEyODA_size_16_color_FFFFFF_t_70 1][]

2、默认操作，一路创建一个模块

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3UwMTQzNjEyODA_size_16_color_FFFFFF_t_70 2][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3UwMTQzNjEyODA_size_16_color_FFFFFF_t_70 3][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3UwMTQzNjEyODA_size_16_color_FFFFFF_t_70 4][]

3、创建一个 VoiceVolumnWrapper ，编写获取各个音量最大最小当前值，和设置当前值，广播监听音量变化的方法

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3UwMTQzNjEyODA_size_16_color_FFFFFF_t_70 5][]

4、在 MainActivity 中添加，测试 VoiceVolumnWrapper  接口的方法，然后设置一个超大值，看是否能保持原最大值

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3UwMTQzNjEyODA_size_16_color_FFFFFF_t_70 6][]

5、打包，在设备上运行的结果如下

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3UwMTQzNjEyODA_size_16_color_FFFFFF_t_70][]

## 六、关键代码 ##

1、VoiceVolumnWrapper

package com.example.voicevolumntest;
    
    import android.content.BroadcastReceiver;
    import android.content.Context;
    import android.content.Intent;
    import android.content.IntentFilter;
    import android.media.AudioManager;
    import android.os.Build;
    import android.util.Log;
    import android.widget.Toast;
    
    import java.lang.ref.WeakReference;
    
    public class VoiceVolumnWrapper {
    
        private static final String TAG = "Main_VoiceVolumnWrapper";
    
        private AudioManager _AudioManager;
        private Context _Context;
    
        private static final String ACTION_VOLUME_CHANGED = "android.media.VOLUME_CHANGED_ACTION";
        private static final String EXTRA_VOLUME_STREAM_TYPE = "android.media.EXTRA_VOLUME_STREAM_TYPE";
    
        private MyVolumeReceiver mVolumeReceiver;
    
        public VoiceVolumnWrapper(Context context){
    
            _Context = context;
            _AudioManager =(AudioManager) _Context.getSystemService(Context.AUDIO_SERVICE);
        }
    
        /**
         * // 通话音量
         * @return
         */
        public int GetCallVoiceMax(){
    
            return  _AudioManager.getStreamMaxVolume(AudioManager.STREAM_VOICE_CALL) ;
        }
    
        /**
         * // 通话音量
         * @return
         */
        public int GetCallVoiceMin(){
    
            return  _AudioManager.getStreamMinVolume(AudioManager.STREAM_VOICE_CALL) ;
        }
    
        /**
         * // 通话音量
         * @return
         */
        public int GetCallVoiceCurrentValue(){
    
            return  _AudioManager.getStreamVolume(AudioManager.STREAM_VOICE_CALL) ;
        }
    
    
    
        /**
         * // 系统音量
         * @return
         */
        public int GetSystemVoiceMax(){
    
            return  _AudioManager.getStreamMaxVolume(AudioManager.STREAM_SYSTEM) ;
        }
    
        /**
         * // 系统音量
         * @return
         */
        public int GetSystemVoiceMin(){
    
            return  _AudioManager.getStreamMinVolume(AudioManager.STREAM_SYSTEM) ;
        }
    
        /**
         * // 系统音量
         * @return
         */
        public int GetSystemVoiceCurrentValue(){
    
            return  _AudioManager.getStreamVolume(AudioManager.STREAM_SYSTEM) ;
        }
    
    
        /**
         * // 铃声音量
         * @return
         */
        public int GetRingVoiceMax(){
    
            return  _AudioManager.getStreamMaxVolume(AudioManager.STREAM_RING) ;
        }
    
        /**
         * // 铃声音量
         * @return
         */
        public int GetRingVoiceMin(){
    
            return  _AudioManager.getStreamMinVolume(AudioManager.STREAM_RING) ;
        }
    
        /**
         * // 铃声音量
         * @return
         */
        public int GetRingVoiceCurrentValue(){
    
            return  _AudioManager.getStreamVolume(AudioManager.STREAM_RING) ;
        }
    
    
        /**
         * // 音乐音量
         * @return
         */
        public int GetMusicVoiceMax(){
    
            return  _AudioManager.getStreamMaxVolume(AudioManager.STREAM_MUSIC) ;
        }
    
        /**
         * // 音乐音量
         * @return
         */
        public int GetMusicVoiceMin(){
    
            return  _AudioManager.getStreamMinVolume(AudioManager.STREAM_MUSIC) ;
        }
    
        /**
         * // 音乐音量
         * @return
         */
        public int GetMusicVoiceCurrentValue(){
    
            return  _AudioManager.getStreamVolume(AudioManager.STREAM_MUSIC) ;
        }
    
        /**
         * 增加音乐音量
         * @param value
         */
        public void AddMusicVoiceVolumn(int value){
            int addValue = (GetMusicVoiceCurrentValue() + value) ;
            // 防止音量值越界
            addValue = addValue > GetMusicVoiceMax() ?GetMusicVoiceMax():addValue;
            _AudioManager.setStreamVolume(AudioManager.STREAM_MUSIC,addValue,AudioManager.FLAG_PLAY_SOUND);
        }
    
        /**
         * 减少音乐音量
         * @param value
         */
        public void ReduceMusicVoiceVolumn(int value){
            int reduceValue = (GetMusicVoiceCurrentValue() - value) ;
            // 防止音量值越界
            reduceValue = reduceValue < GetMusicVoiceMin() ?GetMusicVoiceMin():reduceValue;
            _AudioManager.setStreamVolume(AudioManager.STREAM_MUSIC,reduceValue,AudioManager.FLAG_PLAY_SOUND);
        }
    
        /**
         * 注册广播监听
         */
        public void registerVolumeReceiver() {
            mVolumeReceiver = new MyVolumeReceiver();
            IntentFilter filter = new IntentFilter();
            filter.addAction("android.media.VOLUME_CHANGED_ACTION");
            _Context.registerReceiver(mVolumeReceiver, filter);
        }
    
        /**
         * 取消注册广播监听
         */
        public void unregisterVolumeReceiver() {
    
            if (mVolumeReceiver != null) _Context.unregisterReceiver(mVolumeReceiver);
    
        }
    
    
        /**
         * 音量变化广播类
         */
        private class MyVolumeReceiver extends BroadcastReceiver {
            @Override
            public void onReceive(Context context, Intent intent) {
                if (isReceiveVolumeChange(intent) == true) {
                    int currVolume = _AudioManager.getStreamVolume(AudioManager.STREAM_MUSIC);
                    Toast.makeText(context, currVolume + " ", Toast.LENGTH_SHORT).show();
                    Log.i(TAG, "onReceive:isReceiveVolumeChange currVolume "+currVolume);
                }
            }
        }
    
        /**
         * 判断是否是音乐音量变化（音量键改变的音量）
         * @param intent
         * @return
         */
        private boolean isReceiveVolumeChange(Intent intent) {
            return intent.getAction() != null
                    && intent.getAction().equals(ACTION_VOLUME_CHANGED)
                    && intent.getIntExtra(EXTRA_VOLUME_STREAM_TYPE, -1) == AudioManager.STREAM_MUSIC
                    ;
        }
    
    }

2、MainActivity

package com.example.voicevolumntest;
    
    import android.support.v7.app.AppCompatActivity;
    import android.os.Bundle;
    import android.util.Log;
    
    public class MainActivity extends AppCompatActivity {
    
        private static final String TAG = "MainActivity";
        VoiceVolumnWrapper _VoiceVolumnWrapper;
    
        @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_main);
    
            _VoiceVolumnWrapper = new VoiceVolumnWrapper(this);
            Log.i(TAG, "onCreate:Call Voice  " + _VoiceVolumnWrapper.GetCallVoiceMax() +" " + _VoiceVolumnWrapper.GetCallVoiceMin() +" "+ _VoiceVolumnWrapper.GetCallVoiceCurrentValue());
            Log.i(TAG, "onCreate:System Voice  " + _VoiceVolumnWrapper.GetSystemVoiceMax() +" " + _VoiceVolumnWrapper.GetSystemVoiceMin() +" "+ _VoiceVolumnWrapper.GetSystemVoiceCurrentValue());
            Log.i(TAG, "onCreate:Ring Voice  " + _VoiceVolumnWrapper.GetRingVoiceMax() +" " + _VoiceVolumnWrapper.GetRingVoiceMin() +" "+ _VoiceVolumnWrapper.GetRingVoiceCurrentValue());
            Log.i(TAG, "onCreate:Music Voice  " + _VoiceVolumnWrapper.GetMusicVoiceMax() +" " + _VoiceVolumnWrapper.GetMusicVoiceMin() +" "+ _VoiceVolumnWrapper.GetMusicVoiceCurrentValue());
    
            _VoiceVolumnWrapper.registerVolumeReceiver();
    
            _VoiceVolumnWrapper.AddMusicVoiceVolumn(100);
            Log.i(TAG, "onCreate:Music Voice  " + _VoiceVolumnWrapper.GetMusicVoiceMax() +" " + _VoiceVolumnWrapper.GetMusicVoiceMin() +" "+ _VoiceVolumnWrapper.GetMusicVoiceCurrentValue());
    
            _VoiceVolumnWrapper.ReduceMusicVoiceVolumn(300);
            Log.i(TAG, "onCreate:Music Voice  " + _VoiceVolumnWrapper.GetMusicVoiceMax() +" " + _VoiceVolumnWrapper.GetMusicVoiceMin() +" "+ _VoiceVolumnWrapper.GetMusicVoiceCurrentValue());
    
    
    
        }
    
        @Override
        protected void onDestroy() {
            _VoiceVolumnWrapper.unregisterVolumeReceiver();
            super.onDestroy();
        }
    }

3、AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
    <manifest xmlns:android="http://schemas.android.com/apk/res/android"
        package="com.example.voicevolumntest">
    
        <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/AppTheme">
            <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>

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