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iOS volume button pluggin
1 parent 1380851 commit 9064f1e

9 files changed

Lines changed: 262 additions & 7 deletions

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‎Assets/Plugins/VolumeButtonsPlugin/Android/VolumeButtonsActivity.java‎

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@@ -13,7 +13,7 @@
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public class VolumeButtonsActivity extends UnityPlayerActivity {
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/**
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* Keep in sync with VolumeButton.Event in C#
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* Keep in sync with VolumeButtonsEvent in C#
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*/
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private enum Event {
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VOLUME_DOWN(-1),

‎Assets/Plugins/VolumeButtonsPlugin/VolumeButtons.cs‎

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using System;
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using System.Collections;
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using System.Collections.Generic;
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using System.Runtime.InteropServices;
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using UnityEngine;
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@@ -18,7 +19,7 @@ void Start()
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#if UNITY_ANDROID
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_CallActivity("addGameObjectListener", gameObject.name);
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#elif UNITY_IOS
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// FIXME
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_AddGameObjectListener(gameObject.name, gameObject.name.Length);
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#else
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Debug.LogFormat(UnsupportedError, Application.platform, string.Join("", SupportedPlatforms));
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#endif
@@ -29,7 +30,7 @@ void OnDisable()
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#if UNITY_ANDROID
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_CallActivity("removeGameObjectListener", gameObject.name);
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#elif UNITY_IOS
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// FIXME
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_RemoveGameObjectListener(gameObject.name, gameObject.name.Length);
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#else
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Debug.LogFormat(UnsupportedError, Application.platform, string.Join("", SupportedPlatforms));
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#endif
@@ -47,14 +48,27 @@ private void _OnVolumeButtonEvent(string value)
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}
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}
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#if UNITY_ANDROID
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private void _CallActivity(string methodName, string arg0)
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{
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AndroidJNIHelper.debug = true;
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using (AndroidJavaClass unityPlayerClass = new AndroidJavaClass("com.unity3d.player.UnityPlayer")) {
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using (AndroidJavaObject activity = unityPlayerClass.GetStatic<AndroidJavaObject>("currentActivity")) {
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using (AndroidJavaClass unityPlayerClass = new AndroidJavaClass("com.unity3d.player.UnityPlayer"))
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{
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using (AndroidJavaObject activity = unityPlayerClass.GetStatic<AndroidJavaObject>("currentActivity"))
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{
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Debug.LogFormat("Call {0}({1})", methodName, arg0);
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activity.Call(methodName, arg0);
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}
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}
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}
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}
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#elif UNITY_IOS
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[DllImport("__Internal", EntryPoint="VBP_addGameObjectListener")]
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private static extern void _AddGameObjectListener([MarshalAs(UnmanagedType.LPWStr)]string gameObjectName, int gameObjectNameLen);
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[DllImport("__Internal", EntryPoint="VBP_removeGameObjectListener")]
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private static extern void _RemoveGameObjectListener([MarshalAs(UnmanagedType.LPWStr)]string gameObjectName, int gameObjectNameLen);
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#endif
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}

‎Assets/Plugins/VolumeButtonsPlugin/iOS/VolumeButtonsPlugin.h‎

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#import <Foundation/Foundation.h>
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void VBP_addGameObjectListener(const char *go_name, int go_name_length);
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void VBP_removeGameObjectListener(const char *go_name, int go_name_length);

‎Assets/Plugins/VolumeButtonsPlugin/iOS/VolumeButtonsPlugin.h.meta‎

Lines changed: 27 additions & 0 deletions
Some generated files are not rendered by default. Learn more about customizing how changed files appear on GitHub.

‎Assets/Plugins/VolumeButtonsPlugin/iOS/VolumeButtonsPlugin.m‎

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#import "VolumeButtonsPlugin.h"
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#import "UnityInterface.h"
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#import <AVFoundation/AVFoundation.h>
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#import <MediaPlayer/MediaPlayer.h>
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@class _VBPAVAudioSessionObserver;
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static const char* kMessageName = "_OnVolumeButtonEvent";
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static const char* kVolumeUp = "1";
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static const char* kVolumeDown = "-1";
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static _VBPAVAudioSessionObserver *observer = NULL;
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@interface _VBPAVAudioSessionObserver : NSObject {
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float _currentVolumeLevel;
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NSMutableArray<NSString *> *_gameObjectNames;
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MPVolumeView *_volumeView;
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}
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-(void) addGameObject:(NSString *)objectName;
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-(void) removeGameObject:(NSString *)objectName;
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@end
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@implementation _VBPAVAudioSessionObserver
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-(id) init {
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if (self = [super init]) {
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_currentVolumeLevel = [[AVAudioSession sharedInstance] outputVolume];
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_gameObjectNames = [NSMutableArray new];
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}
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return self;
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}
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-(void) addGameObject:(NSString *)objectName {
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@synchronized(_gameObjectNames) {
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if (_gameObjectNames.count == 0) {
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AVAudioSession *session = [AVAudioSession sharedInstance];
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if (!session.isOtherAudioPlaying) {
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[session setActive:YES error:nil];
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}
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[session addObserver:self forKeyPath:@"outputVolume" options:NSKeyValueObservingOptionNew context:nil];
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}
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[_gameObjectNames addObject:objectName];
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}
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}
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- (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary *)change context:(void *)context {
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if ([@"outputVolume" isEqualToString:keyPath]) {
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float newVolumeLevel = [[AVAudioSession sharedInstance] outputVolume];
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@synchronized(_gameObjectNames) {
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for (NSString *gameObjectName in _gameObjectNames) {
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UnitySendMessage([gameObjectName cStringUsingEncoding:NSUTF8StringEncoding], kMessageName, (newVolumeLevel > _currentVolumeLevel ? kVolumeUp : kVolumeDown));
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}
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}
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// https://forums.developer.apple.com/thread/107241
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if (newVolumeLevel > 0.999f) {
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_currentVolumeLevel = 0.9375f;
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[self hackSystemVolume:_currentVolumeLevel];
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} else if (newVolumeLevel < 0.001f) {
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_currentVolumeLevel = 0.0625f;
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[self hackSystemVolume:_currentVolumeLevel];
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} else {
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_currentVolumeLevel = newVolumeLevel;
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}
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} else {
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[super observeValueForKeyPath:keyPath ofObject:object change:change context:context];
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}
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}
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-(void) removeGameObject:(NSString *)objectName {
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@synchronized(_gameObjectNames) {
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[_gameObjectNames removeObject:objectName];
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if (_gameObjectNames.count == 0) {
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AVAudioSession *session = [AVAudioSession sharedInstance];
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[session removeObserver:self forKeyPath:@"outputVolume"];
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}
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}
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}
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-(void)hackSystemVolume:(float)volumeLevel {
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UISlider *view = [[[[MPVolumeView new] subviews] filteredArrayUsingPredicate:[NSPredicate predicateWithFormat:@"classForCoder == \"MPVolumeSlider\""]] firstObject];
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if ([view isKindOfClass:[UISlider class]]) {
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UISlider *slider = (UISlider *)view;
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[slider setValue:volumeLevel];
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}
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}
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@end
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void VBP_addGameObjectListener(const char *go_name, int go_name_length)
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{
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if (!observer) {
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observer = [_VBPAVAudioSessionObserver new];
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}
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// https://answers.unity.com/questions/363476/how-to-pass-unicode-text-from-c-to-objective-c.html
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NSString* gon = [[NSString alloc]
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initWithBytes:go_name
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length:sizeof(__CHAR16_TYPE__) * go_name_length
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encoding:NSUTF16LittleEndianStringEncoding];
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[observer addGameObject:gon];
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}
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void VBP_removeGameObjectListener(const char *go_name, int go_name_length)
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{
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NSString* gon = [[NSString alloc]
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initWithBytes:go_name
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length:sizeof(__CHAR16_TYPE__) * go_name_length
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encoding:NSUTF16LittleEndianStringEncoding];
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[observer removeGameObject:gon];
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}

‎Assets/Plugins/VolumeButtonsPlugin/iOS/VolumeButtonsPlugin.m.meta‎

Lines changed: 37 additions & 0 deletions
Some generated files are not rendered by default. Learn more about customizing how changed files appear on GitHub.

‎ProjectSettings/GraphicsSettings.asset‎

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- {fileID: 10770, guid: 0000000000000000f000000000000000, type: 0}
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- {fileID: 16000, guid: 0000000000000000f000000000000000, type: 0}
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- {fileID: 16001, guid: 0000000000000000f000000000000000, type: 0}
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- {fileID: 16003, guid: 0000000000000000f000000000000000, type: 0}
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- {fileID: 17000, guid: 0000000000000000f000000000000000, type: 0}
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m_PreloadedShaders: []
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m_SpritesDefaultMaterial: {fileID: 10754, guid: 0000000000000000f000000000000000,

‎ProjectSettings/ProjectSettings.asset‎

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applicationIdentifier:
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Android: org.camobap.unity3d
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Standalone: com.Company.ProductName
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iPhone: org.camobap.unity3d
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buildNumber: {}
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AndroidBundleVersionCode: 1
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AndroidMinSdkVersion: 19
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- m_BuildTarget: AndroidPlayer
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m_APIs: 150000000b000000
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m_Automatic: 0
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- m_BuildTarget: iOSSupport
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m_APIs: 08000000
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m_Automatic: 0
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m_BuildTargetVRSettings: []
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openGLRequireES31: 0
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openGLRequireES31AEP: 0

‎README.md‎

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# Unity3d VolumeButtonsPlugin
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This plugin was developed for Unity3d Android & iOS platforms to be able listen for Volume up/down button clicks, it doesn't override them
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Implemented buttons:
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- [x] Volume Up
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- [x] Volume Down
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- [ ] Mute
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## Getting Started
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These instructions will get you a copy of the project up and running on your local machine for development and testing purposes. See deployment for notes on how to deploy the project on a live system.
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### Prerequisites
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```
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Unity3d 2019.x
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```
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### Installing
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To install this pulgin:
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- Copy `Assets/Plugin/VolumeButtonsPlugin` into your project
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- Make sure that you updated activity name to `org.camobap.unity3d.VolumeButtonsActivity` in your `Assets/Plugin/Android/AndroidManifest.xml`*
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- For iOS add `MediaPlayer.framework`
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* If you already have another custom activity there, please change parent `UnityPlayerActivity` in `VolumeButtonsActivity.java` to yours one or vice-versa
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## Running the tests
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Test app have two blinking Panels
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## Usage in your apps
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For your propose you can define fuction with signature below:
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```
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...
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public void HandleVolumeButton(VolumeButtonsEventType e)
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{
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...
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}
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```
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And attach it to `VolumeButtons.cs` component
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## License
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This project is licensed under the MIT License - see the [LICENSE.md](https://opensource.org/licenses/MIT) file for details

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