android MediaRecorder实现录屏时带录音功能

下面说说android的事把

最近是不是也会遇到需求中需要用到录屏录音的功能,最近也是遇到的 现在整理完记录一下

首先呢,录音录屏需要权限 先贴一个动态权限类

public class TalAllow { /** * RECORD_AUDIO 音频权限 * WRITE_EXTERNAL_STORAGE 写入权限 * CAMERA相机权限 */ public static void requestPermissions(Context context,int allowCode) { ArrayList<String> ps = new ArrayList<>(); int per = ContextCompat.checkSelfPermission(context, Manifest.permission.RECORD_AUDIO); if (per != PackageManager.PERMISSION_GRANTED) { ps.add(Manifest.permission.RECORD_AUDIO); } per = ContextCompat.checkSelfPermission(context, Manifest.permission.WRITE_EXTERNAL_STORAGE); if (per != PackageManager.PERMISSION_GRANTED) { ps.add(Manifest.permission.WRITE_EXTERNAL_STORAGE); } per = ContextCompat.checkSelfPermission(context, Manifest.permission.CAMERA); if (per != PackageManager.PERMISSION_GRANTED) { ps.add(Manifest.permission.CAMERA); } per = ContextCompat.checkSelfPermission(context, Manifest.permission.READ_PHONE_STATE); if (per != PackageManager.PERMISSION_GRANTED) { ps.add(Manifest.permission.READ_PHONE_STATE); } Log.d(TAG, 'requestPermissions:ps=' + ps.size()); if (!ps.isEmpty()) { String[] ps3 = new String[ps.size()]; ps.toArray(ps3); ActivityCompat.requestPermissions((Activity) context, ps3, allowCode); } }}

有需求需要判断权限的呢 插入个链接 （上面那个类code码为100）判断是否有权限

下面重点来了

首先说明一下这个录屏和录音是在服务里面做的，所以呢贴一个服务类这个代码绝对有质量 做了很多处理,下面一行一行解读把

//首先呢实现的是Handle.Callback接口 主要是做时间及计时时间回调的,会重新写HandleMessage方法,其实我个觉得跟在括号{} 里面重写没啥区别就是简洁页面public class TalScreenRecordService extends Service implements Handler.Callback {//这个就不解释了吧 log private static final String TAG = 'TalScreenRecordService'; //这个类是管理类拿到服务后会通过下面的类申请录屏,点击允许， //其中会回调两个参数,code码 和 data,都在ActivityForResult中进行判断code private MediaProjectionManager mProjectionManager; //这个会拿到申请的结果 private MediaProjection mMediaProjection; //这个类就是我们主要的录屏录音的类啦 private MediaRecorder mMediaRecorder; //这个就是我们要获取录制屏幕的大小,像素,等等一些数据 //关于这类更详细的介绍https://blog.csdn.net/qq_16628781/article/details/62038163 private VirtualDisplay mVirtualDisplay; //是否正在录制 false 没有录制 private boolean mIsRunning; //获取屏幕的宽高和像素密度 稍后贴类 private int mRecordWidth = TalScreenParams.getScreenWidth(); private int mRecordHeight = TalScreenParams.getScreenWidth(); private int mScreenDpi = TalScreenParams.getScreenDpi(); //code data 就是上面说的允许后回调 private int mResultCode; private Intent mResultData; //录屏文件的保存地址 private String mRecordFilePath; private Handler mHandler; //已经录制多少秒了 private int mRecordSeconds = 0; //handle发送消息时的what private static final int MSG_TYPE_COUNT_DOWN = 110; //这个是继承Service 必须重写的方法 这是使用的BindService(生命周期的长短跟activity一致) @Override public IBinder onBind(Intent intent) { return new RecordBinder(); } //说一说这个返回值的问题吧 // START_STICKY 粘性返回 ,一次失败,多次启动,不保留Intent对象 //关于返回值问题https://blog.csdn.net/github_37663523/article/details/78811539 @Override public int onStartCommand(Intent intent, int flags, int startId) { return START_STICKY; } @Override public void onCreate() { super.onCreate(); //没有录制 mIsRunning = false; //创建对象 在create方法里只执行一次 mMediaRecorder = new MediaRecorder(); // 由于实现了CallBack接口,在这里注册一下接口(个人觉得高大的写法,简洁) mHandler = new Handler(Looper.getMainLooper(), this); } @Override public void onDestroy() { super.onDestroy(); } //数据不为空 public boolean isReady() { return mMediaProjection != null && mResultData != null; } //清除的方法 避免内存泄漏 相信都看得懂 @RequiresApi(api = Build.VERSION_CODES.LOLLIPOP) public void clearRecordElement() { clearAll(); if (mMediaRecorder != null) { mMediaRecorder.reset(); mMediaRecorder.release(); mMediaRecorder = null; } mResultData = null; //不执行的时候false mIsRunning = false; } //这个就是给是否正在录屏提供一个get方法 public boolean ismIsRunning() { return mIsRunning; } //这个就是设置数据的方法在ActivityForResult中设置数据,说明是允许录屏的 @TargetApi(Build.VERSION_CODES.LOLLIPOP) public void setResultData(int resultCode, Intent resultData) { mResultCode = resultCode; mResultData = resultData; //拿到这个管理,看不懂跟上面注释结合看 mProjectionManager = (MediaProjectionManager) getSystemService(Context.MEDIA_PROJECTION_SERVICE); //getMediaProjection(code,data)不知道这样写看不看的董 //说白了MediaProjectionManager是申请权限 MediaProjection是获取申请结果,防止别人调取隐私 //再通过上面的setResultData方法获取到ActivityForResult中的code,data if (mProjectionManager != null) { mMediaProjection = mProjectionManager.getMediaProjection(mResultCode, mResultData); } } //开始录制了 @RequiresApi(api = Build.VERSION_CODES.LOLLIPOP) public boolean startRecord() { //代码执行顺序(false,目前没录屏) if (mIsRunning) { return false; } //再次创建,防止异常 if (mMediaProjection == null) { mMediaProjection = mProjectionManager.getMediaProjection(mResultCode, mResultData); } //关于文件路径还有录屏的一些参数问题 setUpMediaRecorder(); //关于获取录制屏幕的大小,像素,等等一些数据 createVirtualDisplay(); //开始录制 mMediaRecorder.start(); //稍后贴类 监听录制情况 TalScreenUtils.startRecord(); //最多录制三分钟 mHandler.sendEmptyMessageDelayed(MSG_TYPE_COUNT_DOWN, 1000); //录制时为true mIsRunning = true; Log.d(TAG, 'startRecord '); return true; } //停止的方法 @RequiresApi(api = Build.VERSION_CODES.LOLLIPOP) public boolean stopRecord(String tip) { Log.d(TAG, 'stopRecord: first '); //mIsRunning 默认值为false !mIsRunning 就是true。。 if (!mIsRunning) { return false; } mIsRunning = false; Log.w(TAG, 'stopRecord middle'); try { //停止抓取异常,该置空的为空 mMediaRecorder.stop(); mMediaRecorder.reset(); mMediaRecorder = null; mVirtualDisplay.release(); mMediaProjection.stop(); Log.w(TAG, 'stopRecord '); } catch (Exception e) { e.printStackTrace(); mMediaRecorder.release(); mMediaRecorder = null; Log.w(TAG, 'stopRecord exception'); } mMediaProjection = null; //停止时移出这条消息what mHandler.removeMessages(MSG_TYPE_COUNT_DOWN); //停止的监听 tip 是处理一些突发情况 比如内存不足 TalScreenUtils.stopRecord(tip); Log.i(TAG, 'stopRecord: ' + mRecordFilePath); //录制时间不到两秒就删除录制文件 if (mRecordSeconds <= 2) { TalFileUtils.deleteSDFile(mRecordFilePath); } else { //录制的视频库,将数据添加到媒体库 //这个算是应用程序之间共享数据,把自己应用的数据添加到手机的媒体库ContentResolver //举个例子,代码添加手机联系人到自己的联系人列表,或者代码添加图片到自己的图库，还有不懂得，贴个链接 //https://blog.csdn.net/bzlj2912009596/article/details/80248272 TalFileUtils.fileScanVideo(this, mRecordFilePath, 1280, 720, mRecordSeconds); }// mRecordFilePath = null; mRecordSeconds = 0; return true; } //下面是关于处理在一些activity or fragment中生命周期的做法 public void pauseRecord() { if (mMediaRecorder != null) { if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {mMediaRecorder.pause(); } } } public void resumeRecord() { if (mMediaRecorder != null) { if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {mMediaRecorder.resume(); } } } //这个就是刚才讲过的 绘制窗口大小,dpi问题 VirtualDisplay @RequiresApi(api = Build.VERSION_CODES.LOLLIPOP) private void createVirtualDisplay() { mVirtualDisplay = mMediaProjection.createVirtualDisplay('MainScreen', 1280, 720, mScreenDpi,DisplayManager.VIRTUAL_DISPLAY_FLAG_AUTO_MIRROR, mMediaRecorder.getSurface(), null, null); } //这个主要是路径,还有设置一些录制视频参数问题separator 为字节,占位用 @TargetApi(Build.VERSION_CODES.LOLLIPOP) private void setUpMediaRecorder() { mRecordFilePath = getSaveDirectory() + File.separator + System.currentTimeMillis() + '.mp4'; Log.i(TAG, 'setUpMediaRecorder: ' + mRecordFilePath); if (mMediaRecorder == null) { mMediaRecorder = new MediaRecorder(); } //设置音频源 mMediaRecorder.setAudioSource(MediaRecorder.AudioSource.MIC); //设置视频源mMediaRecorder.setVideoSource(MediaRecorder.VideoSource.SURFACE); //设置输出的编码格式 mMediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.MPEG_4); if (mRecordFilePath != null) { mMediaRecorder.setOutputFile(mRecordFilePath); } else if (mRecordFilePath == null) { mMediaRecorder.setOutputFile(mRecordFilePath); } //设置录屏时屏幕大小,这个可跟mVirtualDisplay 一起控制屏幕大小 //mVirtualDisplay 是将屏幕设置成多大多小，setVideoSize是输出文件时屏幕多大多小 mMediaRecorder.setVideoSize(1280, 720); //图像编码 H264较好还有其他选择 mMediaRecorder.setVideoEncoder(MediaRecorder.VideoEncoder.H264); //音频编码mMediaRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB); //设置码率 高清的话的要数越大 mMediaRecorder.setVideoEncodingBitRate((int) (1280 * 720 * 2.6)); //设置帧率，该帧率必须是硬件支持的，可以通过Camera.CameraParameter.getSupportedPreviewFpsRange()方法获取相机支持的帧率 mMediaRecorder.setVideoFrameRate(20); try { //准备 mMediaRecorder.prepare(); } catch (IOException e) { e.printStackTrace(); } } @RequiresApi(api = Build.VERSION_CODES.LOLLIPOP) public void clearAll() { if (mMediaProjection != null) { mMediaProjection.stop(); mMediaProjection = null; } } //路径 public String getRecordFilePath() { return mRecordFilePath; } //sd下绝对路径,先判断sd卡是否挂载 public String getSaveDirectory() { if (Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) { return Environment.getExternalStorageDirectory().getAbsolutePath(); } else { return null; } } //这是实现了Handle.CallBack中重写方法 handleMessage @RequiresApi(api = Build.VERSION_CODES.LOLLIPOP) @Override public boolean handleMessage(Message msg) { switch (msg.what) { case MSG_TYPE_COUNT_DOWN: {String str = null;//这是内存boolean enough = TalFileUtils.getSDFreeMemory() / (1024 * 1024) < 4;if (enough) { //空间不足，停止录屏 str = '空间不足'; //停止录屏时 通过接口回调一个信息,是因为什么停止录屏的 stopRecord(str); mRecordSeconds = 0; break;}mRecordSeconds++;int minute = 0, second = 0;if (mRecordSeconds >= 60) { minute = mRecordSeconds / 60; second = mRecordSeconds % 60;} else { second = mRecordSeconds;}TalScreenUtils.onRecording('0' + minute + ':' + (second < 10 ? '0' + second : second + ''));if (mRecordSeconds < 5 * 60) { mHandler.sendEmptyMessageDelayed(MSG_TYPE_COUNT_DOWN, 1000);} else if (mRecordSeconds == 5 * 60) { str = '录制已到限定时长'; stopRecord(str); mRecordSeconds = 0;}break; } } return true; } public class RecordBinder extends Binder { public TalScreenRecordService getRecordService() { return TalScreenRecordService.this; } }}

下面贴关于手机像素还有dpi的类

public class TalScreenParams { private static int mScreenWidth; private static int mScreenHeight; private static int mScreenDpi; public static void init(Activity activity){ Display display = activity.getWindowManager().getDefaultDisplay(); DisplayMetrics metrics = new DisplayMetrics(); display.getMetrics(metrics); mScreenWidth = metrics.widthPixels; mScreenHeight = metrics.heightPixels; mScreenDpi = metrics.densityDpi; } public static int getScreenWidth(){ return mScreenWidth; } public static int getScreenHeight(){ return mScreenHeight; } public static int getScreenDpi(){ return mScreenDpi; }

下面贴关于删除文件,添加到媒体库的类 这里就使用到了ContentResolver

public class TalFileUtils { /** * 删除SD卡中的文件或目录 * * @param path * @return */ public static boolean deleteSDFile(String path) { return deleteSDFile(path, false); } /** * 删除SD卡中的文件或目录 * * @param path * @param deleteParent true为删除父目录 * @return */ public static boolean deleteSDFile(String path, boolean deleteParent) { if (TextUtils.isEmpty(path)) { return false; } File file = new File(path); if (!file.exists()) { //不存在 return true; } return deleteFile(file, deleteParent); } /** * @param file * @param deleteParent true为删除父目录 * @return */ public static boolean deleteFile(File file, boolean deleteParent) { boolean flag = false; if (file == null) { return flag; } if (file.isDirectory()) { //是文件夹 File[] files = file.listFiles(); if (files.length > 0) {for (int i = 0; i < files.length; i++) { flag = deleteFile(files[i], true); if (!flag) { return flag; }} } if (deleteParent) {flag = file.delete(); } } else { flag = file.delete(); } file = null; return flag; } /** * 添加到媒体数据库 * * @param context 上下文 */ public static Uri fileScanVideo(Context context, String videoPath, int videoWidth, int videoHeight, int videoTime) { File file = new File(videoPath); if (file.exists()) { Uri uri = null; long size = file.length(); String fileName = file.getName(); long dateTaken = System.currentTimeMillis(); ContentValues values = new ContentValues(11); values.put(MediaStore.Video.Media.DATA, videoPath); // 路径; values.put(MediaStore.Video.Media.TITLE, fileName); // 标题; values.put(MediaStore.Video.Media.DURATION, videoTime * 1000); // 时长 values.put(MediaStore.Video.Media.WIDTH, videoWidth); // 视频宽 values.put(MediaStore.Video.Media.HEIGHT, videoHeight); // 视频高 values.put(MediaStore.Video.Media.SIZE, size); // 视频大小; values.put(MediaStore.Video.Media.DATE_TAKEN, dateTaken); // 插入时间; values.put(MediaStore.Video.Media.DISPLAY_NAME, fileName);// 文件名; values.put(MediaStore.Video.Media.DATE_MODIFIED, dateTaken / 1000);// 修改时间; values.put(MediaStore.Video.Media.DATE_ADDED, dateTaken / 1000); // 添加时间; values.put(MediaStore.Video.Media.MIME_TYPE, 'video/mp4'); ContentResolver resolver = context.getContentResolver(); if (resolver != null) {try { uri = resolver.insert(MediaStore.Video.Media.EXTERNAL_CONTENT_URI, values);} catch (Exception e) { e.printStackTrace(); uri = null;} } if (uri == null) {MediaScannerConnection.scanFile(context, new String[]{videoPath}, new String[]{'video/*'}, new MediaScannerConnection.OnScanCompletedListener() { @Override public void onScanCompleted(String path, Uri uri) { }}); } return uri; } return null; } /** * SD卡存在并可以使用 */ public static boolean isSDExists() { return Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED); } /** * 获取SD卡的剩余容量，单位是Byte * * @return */ public static long getSDFreeMemory() { try { if (isSDExists()) {File pathFile = Environment.getExternalStorageDirectory();// Retrieve overall information about the space on a filesystem.// This is a Wrapper for Unix statfs().StatFs statfs = new StatFs(pathFile.getPath());// 获取SDCard上每一个block的SIZElong nBlockSize = statfs.getBlockSize();// 获取可供程序使用的Block的数量// long nAvailBlock = statfs.getAvailableBlocksLong();long nAvailBlock = statfs.getAvailableBlocks();// 计算SDCard剩余大小Bytelong nSDFreeSize = nAvailBlock * nBlockSize;return nSDFreeSize; } } catch (Exception ex) { ex.printStackTrace(); } return 0; } public static long getFreeMem(Context context) { ActivityManager manager = (ActivityManager) context.getApplicationContext().getSystemService(Activity.ACTIVITY_SERVICE); if (manager != null) { ActivityManager.MemoryInfo info = new ActivityManager.MemoryInfo(); if (info != null) {manager.getMemoryInfo(info);// 单位Bytereturn info.availMem / 1024 / 1024; } } return 0; }}

还有一个类 是为整个Service提供了便捷访问的类 ，将一些监听service中的变化放到集合里来做

public class TalScreenUtils { private static TalScreenRecordService s_ScreenRecordService; private static List<RecordListener> s_RecordListener = new ArrayList<>(); private static List<OnPageRecordListener> s_PageRecordListener = new ArrayList<>(); //true,录制结束的提示语正在显示 public static boolean s_IsRecordingTipShowing = false; /** * 录屏功能 5.0+ 的手机才能使用 * @return */ public static boolean isScreenRecordEnable(){ return Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP ; } public static void setScreenService(TalScreenRecordService screenService){ s_ScreenRecordService = screenService; } public static void clear(){ if ( isScreenRecordEnable() && s_ScreenRecordService != null){ s_ScreenRecordService.clearAll(); s_ScreenRecordService = null; } if (s_RecordListener != null && s_RecordListener.size() > 0){ s_RecordListener.clear(); } if (s_PageRecordListener != null && s_PageRecordListener.size() > 0 ){ s_PageRecordListener.clear(); } } /** * 开始录制 */ public static void startScreenRecord(Activity activity, int requestCode) { if (isScreenRecordEnable()){ if (s_ScreenRecordService != null && !s_ScreenRecordService.ismIsRunning()){if (!s_ScreenRecordService.isReady()){ MediaProjectionManager mediaProjectionManager = (MediaProjectionManager) activity. getSystemService(Context.MEDIA_PROJECTION_SERVICE); if (mediaProjectionManager != null){ Intent intent = mediaProjectionManager.createScreenCaptureIntent(); PackageManager packageManager = activity.getPackageManager(); if (packageManager.resolveActivity(intent,PackageManager.MATCH_DEFAULT_ONLY) != null){ //存在录屏授权的Activity activity.startActivityForResult(intent,requestCode); }else { Toast.makeText(activity, '不能录音', Toast.LENGTH_SHORT).show(); } }} else { s_ScreenRecordService.startRecord();} } } } /** * 获取用户允许录屏后，设置必要的数据 * @param resultCode * @param resultData */ public static void setUpData(int resultCode,Intent resultData) throws Exception{ if (isScreenRecordEnable()){ if (s_ScreenRecordService != null && !s_ScreenRecordService.ismIsRunning()){s_ScreenRecordService.setResultData(resultCode,resultData);s_ScreenRecordService.startRecord(); } } } /** * 停止录制 */ public static void stopScreenRecord(Context context){ if (isScreenRecordEnable()){ if (s_ScreenRecordService != null && s_ScreenRecordService.ismIsRunning()){String str = '停止录制';s_ScreenRecordService.stopRecord(str); } } } /** * 获取录制后的文件地址 * @return */ public static String getScreenRecordFilePath(){ if (isScreenRecordEnable() && s_ScreenRecordService!= null) { return s_ScreenRecordService.getRecordFilePath(); } return null; } /** * 判断当前是否在录制 * @return */ public static boolean isCurrentRecording(){ if (isScreenRecordEnable() && s_ScreenRecordService!= null) { return s_ScreenRecordService.ismIsRunning(); } return false; } /** * true,录制结束的提示语正在显示 * @return */ public static boolean isRecodingTipShow(){ return s_IsRecordingTipShowing; } public static void setRecordingStatus(boolean isShow){ s_IsRecordingTipShowing = isShow; } /** * 系统正在录屏，app 录屏会有冲突，清理掉一些数据 */ public static void clearRecordElement(){ if (isScreenRecordEnable()){ if (s_ScreenRecordService != null ){s_ScreenRecordService.clearRecordElement(); } } } public static void addRecordListener(RecordListener listener){ if (listener != null && !s_RecordListener.contains(listener)){ s_RecordListener.add(listener); } } public static void removeRecordListener(RecordListener listener){ if (listener != null && s_RecordListener.contains(listener)){ s_RecordListener.remove(listener); } } public static void addPageRecordListener( OnPageRecordListener listener){ if (listener != null && !s_PageRecordListener.contains(listener)){ s_PageRecordListener.add(listener); } } public static void removePageRecordListener( OnPageRecordListener listener){ if (listener != null && s_PageRecordListener.contains(listener)){ s_PageRecordListener.remove(listener); } } public static void onPageRecordStart(){ if (s_PageRecordListener!= null && s_PageRecordListener.size() > 0 ){ for (OnPageRecordListener listener : s_PageRecordListener){listener.onStartRecord(); } } } public static void onPageRecordStop(){ if (s_PageRecordListener!= null && s_PageRecordListener.size() > 0 ){ for (OnPageRecordListener listener : s_PageRecordListener){listener.onStopRecord(); } } } public static void onPageBeforeShowAnim(){ if (s_PageRecordListener!= null && s_PageRecordListener.size() > 0 ){ for (OnPageRecordListener listener : s_PageRecordListener){listener.onBeforeShowAnim(); } } } public static void onPageAfterHideAnim(){ if (s_PageRecordListener!= null && s_PageRecordListener.size() > 0 ){ for (OnPageRecordListener listener : s_PageRecordListener){listener.onAfterHideAnim(); } } } public static void startRecord(){ if (s_RecordListener.size() > 0 ){ for (RecordListener listener : s_RecordListener){listener.onStartRecord();Log.i('xxx', 'startRecord: '); } } } public static void pauseRecord(){ if (s_RecordListener.size() > 0 ){ for (RecordListener listener : s_RecordListener){listener.onPauseRecord(); } } } public static void resumeRecord(){ if (s_RecordListener.size() > 0 ){ for (RecordListener listener : s_RecordListener){listener.onResumeRecord(); } } } public static void onRecording(String timeTip){ if (s_RecordListener.size() > 0 ){ for (RecordListener listener : s_RecordListener){listener.onRecording(timeTip); } } } public static void stopRecord(String stopTip){ if (s_RecordListener.size() > 0 ){ for (RecordListener listener : s_RecordListener){listener.onStopRecord( stopTip); } } } public interface RecordListener{ void onStartRecord(); void onPauseRecord(); void onResumeRecord(); void onStopRecord(String stopTip); void onRecording(String timeTip); } public interface OnPageRecordListener { void onStartRecord(); void onStopRecord(); void onBeforeShowAnim(); void onAfterHideAnim(); }}

到了最后了,是一些调用时的内容

public class MainActivity extends AppCompatActivity { private static final String TAG = MainActivity.class.getSimpleName(); private Button mBtn; private final int REQUEST_ALLOW = 100; private Button mButton; //bindService需要创建连接 private ServiceConnection mConnection = new ServiceConnection() { @Override public void onServiceConnected(ComponentName name, IBinder service) { //启动service TalScreenRecordService.RecordBinder recordBinder = (TalScreenRecordService.RecordBinder) service; TalScreenRecordService recordService = recordBinder.getRecordService(); //这个其实是传值在使用的activity中拿到Service TalScreenUtils.setScreenService(recordService); } @Override public void onServiceDisconnected(ComponentName name) { } }; //开启service,意图跳转到service,别忘了AndroidManifest里面需要注册这个service哦 private void startService() { Intent intent = new Intent(MainActivity.this, TalScreenRecordService.class); bindService(intent, mConnection, BIND_AUTO_CREATE); } @Override protected void onCreate(final Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); mBtn = findViewById(R.id.btn); mButton = findViewById(R.id.button2); initView(); //两个按钮 一个开始 一个结束 xml不贴了 mBtn.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) {if (TalFileUtils.getFreeMem(MainActivity.this) < 100) { Toast.makeText(MainActivity.this, '手机内存不足,请清理后再进行录屏', Toast.LENGTH_SHORT).show(); return;}//开始录屏录音TalScreenUtils.startScreenRecord(MainActivity.this, REQUEST_ALLOW); } }); mButton.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) {stop();Log.i(TAG, 'onClick: ' + stop()); } //停止录屏录音返回路径 private String stop() {TalScreenUtils.stopScreenRecord(MainActivity.this);//停止return TalScreenUtils.getScreenRecordFilePath(); } }); } @Override protected void onStart() { super.onStart(); } private void initView() { //权限申请 TalAllow.requestPermissions(this, REQUEST_ALLOW); //获取屏幕大小 在onCreate里面初始化就可以获取 TalScreenParams.init(this); startService(); } @Override protected void onStop() { super.onStop(); //在对用户可见不可交互的时候防止异常 TalScreenUtils.clear(); } //打印权限获取情况日志 @Override public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) { Toast.makeText(this, permissions[0] + 'n' + grantResults[0], Toast.LENGTH_SHORT).show(); super.onRequestPermissionsResult(requestCode, permissions, grantResults); } //在用户允许录屏后拿到确定的code 跟data @Override protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) { super.onActivityResult(requestCode, resultCode, data); if (requestCode == REQUEST_ALLOW && data != null) { try { //设置数据，在用户允许后 调用了开始录屏的方法TalScreenUtils.setUpData(resultCode, data);//拿到路径String screenRecordFilePath = TalScreenUtils.getScreenRecordFilePath();if (screenRecordFilePath == null) { Toast.makeText(this, '空的', Toast.LENGTH_SHORT).show();}Toast.makeText(MainActivity.this, '' + screenRecordFilePath, Toast.LENGTH_SHORT).show();Log.i('zlq', 'onClick: ' + screenRecordFilePath); } catch (Exception e) {e.printStackTrace(); } } else { Toast.makeText(this, '禁止录屏', Toast.LENGTH_SHORT).show(); } } @Override protected void onDestroy() { super.onDestroy(); unbindService(mConnection); }}

至此，一个还算比较完整的录屏录音功能就可以实现,不足之处请批评指正

总结

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