概述
本文实例为大家分享了Android仿微信长按录制视频并播放功能的具体代码,供大家参考,具体内容如下
一、点击按钮进行录制
首先要获取摄像拍照的权限和读取权限
<uses-permission android:name="android.permission.CAMERA" /> <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" /> <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" /> <uses-permission android:name="android.permission.RECORD_AUDIO" />
布局文件如下:
<?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:id="@+id/activity_main" android:layout_width="match_parent" android:layout_height="match_parent" android:paddingBottom="@dimen/activity_vertical_margin" android:paddingLeft="@dimen/activity_horizontal_margin" android:paddingRight="@dimen/activity_horizontal_margin" android:paddingTop="@dimen/activity_vertical_margin" tools:context="com.yus.videorecording.MainActivity"> <Button android:layout_width="match_parent" android:layout_height="wrap_content" android:id="@+id/open" android:text="开始录制" /> </RelativeLayout>
二、录制时的主要代码,录制完成保存到本地,在进行播放:
public class VideoRecordActivity extends Activity implements MediaRecorder.OnErrorListener, View.OnClickListener { private ImageView iv_cancel,iv_save; private SurfaceView mSurfaceView; private SurfaceHolder mSurfaceHolder; private MediaRecorder mMediaRecorder; private Camera mCamera; private CircleButtonView cbv_record; private File mRecordFile = null;// 文件 private int mRotationRecord=90;//视频输出角度 0横屏 90竖屏 180反横屏 private boolean isRecording;//正在录制 private float mWindowW; @Override protected void onCreate(Bundle savedInstanceState) { //全屏无标题 requestWindowFeature(Window.FEATURE_NO_TITLE); getWindow().setFlags(WindowManager.LayoutParams. FLAG_FULLSCREEN , WindowManager.LayoutParams. FLAG_FULLSCREEN); super.onCreate(savedInstanceState); setContentView(R.layout.video_record_activity); initView(); initData(); setListener(); } private void initData() { DisplayMetrics metric = new DisplayMetrics(); getWindowManager().getDefaultDisplay().getMetrics(metric); mWindowW = metric.widthPixels; // 屏幕宽度(像素) } @Override protected void onResume() { super.onResume(); cbv_record.setVisibility(View.VISIBLE); iv_cancel.setVisibility(View.GONE); iv_save.setVisibility(View.GONE); if(mRecordFile!=null){ mRecordFile.getAbsoluteFile().delete(); } } private void setListener() { cbv_record.setOnLongClickListener(new CircleButtonView.OnLongClickListener() { @Override public void onLongClick() { isRecording=true; startRecord(); } @Override public void onNoMinRecord(int currentTime) { isRecording=false; Toast.makeText(VideoRecordActivity.this, "录制视频太短", Toast.LENGTH_SHORT).show(); if(mRecordFile.getAbsoluteFile()!=null){ mRecordFile.getAbsoluteFile().delete(); } } @Override public void onRecordFinishedListener() { Log.e("yufs","视频录制完成:path=="+mRecordFile.getAbsolutePath()); isRecording=false; stopRecord(); cbv_record.setVisibility(View.GONE); iv_cancel.setVisibility(View.VISIBLE); iv_save.setVisibility(View.VISIBLE); } }); //手机旋转监听 OrientationEventListener orientationEventListener=new OrientationEventListener(this) { @Override public void onOrientationChanged(int rotation) { //录制的过程不改变 if(isRecording){ return; } if (((rotation >= 0) && (rotation <= 30)) || (rotation >= 330)) { // 竖屏拍摄 mRotationRecord=90; } else if (((rotation >= 230) && (rotation <= 310))) { // 横屏拍摄 mRotationRecord=0; } else if (rotation > 30 && rotation < 95) { // 反横屏拍摄 mRotationRecord=180; } } }; orientationEventListener.enable(); iv_cancel.setOnClickListener(this); iv_save.setOnClickListener(this); } private void startRecord() { //初始录制视频保存路径 createRecordDir(); try { initCamera(); initRecord(); }catch (Exception e){ e.printStackTrace(); } } private void initView() { iv_cancel= (ImageView) findViewById(R.id.iv_cancel); iv_save= (ImageView) findViewById(R.id.iv_save); mSurfaceView= (SurfaceView) findViewById(R.id.sv_video); cbv_record= (CircleButtonView) findViewById(R.id.cbv_record); mSurfaceHolder = mSurfaceView.getHolder(); mSurfaceHolder.addCallback(new CustomCallBack()); mSurfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS); } @Override public void onClick(View v) { switch (v.getId()){ case R.id.iv_cancel: cbv_record.setVisibility(View.VISIBLE); mRecordFile.getAbsoluteFile().delete(); iv_cancel.setVisibility(View.GONE); iv_save.setVisibility(View.GONE); break; case R.id.iv_save: Intent intent=new Intent(this,VideoPlayActivity.class); intent.putExtra("source",mRecordFile.getAbsolutePath()); startActivity(intent); break; } } private class CustomCallBack implements SurfaceHolder.Callback { @Override public void surfaceCreated(SurfaceHolder holder) { try { initCamera(); } catch (IOException e) { e.printStackTrace(); } } @Override public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) { } @Override public void surfaceDestroyed(SurfaceHolder holder) { freeCamera(); } } /** * 初始化 * @throws IOException */ @SuppressLint("NewApi") private void initRecord() throws IOException { mMediaRecorder = new MediaRecorder(); mMediaRecorder.reset(); if (mCamera != null) mMediaRecorder.setCamera(mCamera); mMediaRecorder.setOnErrorListener(this); mMediaRecorder.setPreviewDisplay(mSurfaceHolder.getSurface()); mMediaRecorder.setVideoSource(MediaRecorder.VideoSource.CAMERA);// 视频源 mMediaRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);// 音频源 //注释掉的代码官方说这样的配置方法是Android2.2以下使用 // mMediaRecorder.setOutputFormat(OutputFormat.MPEG_4);// 视频输出格式 // mMediaRecorder.setAudioEncoder(AudioEncoder.AAC);// 音频格式:AAC兼容会高点 // mMediaRecorder.setVideoEncoder(MediaRecorder.VideoEncoder.H264);//设置视频编码:h264在常见的网页上都可播放 // mMediaRecorder.setVideoSize(mWidth, mHeight);// 设置分辨率: // mMediaRecorder.setVideoEncodingBitRate(1 * 1024 * 1024*100);// 设置帧频率 //Android2.2以上直接用MediaRecorder.setProfile得到统一的配置 mMediaRecorder.setProfile(CamcorderProfile.get(CamcorderProfile.QUALITY_720P)); mMediaRecorder.setOrientationHint(mRotationRecord);// 输出旋转90度,保持竖屏录制 mMediaRecorder.setOutputFile(mRecordFile.getAbsolutePath()); try { mMediaRecorder.prepare(); mMediaRecorder.start(); } catch (IllegalStateException e) { e.printStackTrace(); } catch (RuntimeException e) { e.printStackTrace(); } catch (Exception e) { e.printStackTrace(); } } /** * 初始化摄像头 */ private void initCamera() throws IOException { if (mCamera != null) { freeCamera(); } try { mCamera = Camera.open(); } catch (Exception e) { e.printStackTrace(); freeCamera(); } if (mCamera == null) return; mCamera.setDisplayOrientation(90); mCamera.setPreviewDisplay(mSurfaceHolder); mCamera.startPreview(); mCamera.unlock(); } /** * 视屏录制保存地方 */ private void createRecordDir() { File videoFolder = new File(Environment.getExternalStorageDirectory() + File.separator + "yufs/");//录制视频的保存地址 if (!videoFolder.exists()) { videoFolder.mkdirs(); } File recordDir = videoFolder; try { // mp4格式的录制的视频文件 mRecordFile = File.createTempFile("recording", ".mp4", recordDir); } catch (IOException e) { e.printStackTrace(); } } /** * 释放摄像头资源 */ private void freeCamera() { try { if (mCamera != null) { mCamera.setPreviewCallback(null); mCamera.stopPreview(); mCamera.lock(); mCamera.release(); mCamera = null; } }catch (Exception e){ //视频成功录制了,资源回收的时候偶尔会崩溃 } } /** * 停止录制 */ public void stopRecord() { if (mMediaRecorder != null) { // 设置后不会崩 mMediaRecorder.setOnErrorListener(null); mMediaRecorder.setPreviewDisplay(null); try { mMediaRecorder.stop(); mMediaRecorder.release(); } catch (IllegalStateException e) { e.printStackTrace(); } catch (RuntimeException e) { e.printStackTrace(); } catch (Exception e) { e.printStackTrace(); } } } @Override public void onError(MediaRecorder mr, int what, int extra) { try { if (mr != null) mr.reset(); } catch (IllegalStateException e) { e.printStackTrace(); } catch (Exception e) { e.printStackTrace(); } } /** * @param v */ private void startAnimator(View v){ AnimatorSet animatorSet = new AnimatorSet();//组合动画 ObjectAnimator scaleX = ObjectAnimator.ofFloat(v, "scaleX", 0, 1f); ObjectAnimator scaleY = ObjectAnimator.ofFloat(v, "scaleY", 0, 1f); animatorSet.setDuration(1000); animatorSet.setInterpolator(new DecelerateInterpolator()); animatorSet.play(scaleX).with(scaleY);//两个动画同时开始 animatorSet.start(); } }
三、录制完成,获取录制的视频并播放
代码如下:
public class VideoPlayActivity extends Activity implements MediaPlayer.OnPreparedListener, TextureVideoView.OnPlayStateListener, MediaPlayer.OnInfoListener, MediaPlayer.OnVideoSizeChangedListener, MediaPlayer.OnErrorListener, MediaPlayer.OnSeekCompleteListener { private VideoViewTouch mVideoView; private RelativeLayout rl_loading; private Context mContext; /** 播放路径 */ private String mSourcePath; private Intent uploadService;//视频上传服务 @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_video_preview); initView(); setListener(); initData(); } private void initData() { //本地视频路径 mSourcePath=getIntent().getStringExtra("source"); //播放视屏 parseIntentUrl(getIntent()); } private void parseIntentUrl(Intent intent) { mVideoView.setVideoPath(mSourcePath); } private void setListener() { mVideoView.setOnPreparedListener(this); mVideoView.setOnPlayStateListener(this); mVideoView.setOnTouchEventListener(mOnVideoTouchListener); mVideoView.setOnInfoListener(this); mVideoView.setOnVideoSizeChangedListener(this); mVideoView.setOnErrorListener(this); mVideoView.setOnSeekCompleteListener(this); } private void initView() { mVideoView= (VideoViewTouch) findViewById(R.id.preview); rl_loading= (RelativeLayout) findViewById(R.id.video_loading); View preview_layout = findViewById(R.id.preview_layout); preview_layout.setVisibility(View.VISIBLE); } private VideoViewTouch.OnTouchEventListener mOnVideoTouchListener = new VideoViewTouch.OnTouchEventListener() { @Override public boolean onClick() { if (mVideoView.isPlaying()) { mVideoView.pauseClearDelayed(); } else { mVideoView.start(); } return true; } @Override public void onVideoViewDown() { } @Override public void onVideoViewUp() { } }; @Override public void onPrepared(MediaPlayer mp) { //获取视频的宽和高 int videoWidth = mp.getVideoWidth(); int videoHeight = mp.getVideoHeight(); Log.e("yufs","视频的宽:"+videoWidth+",视频的高:"+videoHeight); //重新设置TextureView宽和高 mVideoView.resize(); //开始播放 rl_loading.setVisibility(View.GONE); mVideoView.start(); } @Override public void onStateChanged(boolean isPlaying) { } @Override public boolean onInfo(MediaPlayer mp, int what, int extra) { return false; } @Override public void onVideoSizeChanged(MediaPlayer mp, int width, int height) { } @Override public boolean onError(MediaPlayer mp, int what, int extra) { return false; } @Override public void onSeekComplete(MediaPlayer mp) { } @Override protected void onDestroy() { super.onDestroy(); } }
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