Android 仿秒拍，微信录制短视频

Android 仿秒拍，微信录制短视频

之前看了别人写的代码，但是结果自己运行时出现了这种异常。一下是自己整理后的代码：

-1.首先是自定义view :MovieRecorderView.class。必须实现两个接口MediaRecorder.OnErrorListener,MediaRecorder.OnInfoListener，否则会出现：java.lang.IllegalStateException 异常。再就是，相机的 mCamera.lock(); lock camera for later use一定写在mMediaRecorder.release()之后，而不是mCamera.release()。好了，下面是代码：

public class MovieRecorderView extends LinearLayout implements MediaRecorder.OnErrorListener,MediaRecorder.OnInfoListener {

private SurfaceView mSurfaceView;
private SurfaceHolder mSurfaceHolder;
private ProgressBar mProgressBar;
private MediaRecorder mMediaRecorder;
private Camera mCamera;
private Timer mTimer;// 计时器
private OnRecordFinishListener mOnRecordFinishListener;// 录制完成回调接口

private int mWidth;// 视频分辨率宽度
private int mHeight;// 视频分辨率高度
private boolean isOpenCamera;// 是否一开始就打开摄像头
private int mRecordMaxTime;// 一次拍摄最长时间
private int mTimeCount;// 时间计数
private File mVecordFile = null;// 文件

public MovieRecorderView(Context context) {
super(context);
}

public MovieRecorderView(Context context, AttributeSet attrs) {
super(context, attrs);
TypedArray a = context.obtainStyledAttributes(attrs,
R.styleable.MovieRecorderView, 0, 0);
mWidth = a.getInteger(R.styleable.MovieRecorderView_width, 320);// 默认320
mHeight = a.getInteger(R.styleable.MovieRecorderView_movie_height, 240);// 默认240

isOpenCamera = a.getBoolean(
R.styleable.MovieRecorderView_is_open_camera, true);// 默认打开
mRecordMaxTime = a.getInteger(
R.styleable.MovieRecorderView_record_max_time, 10);// 默认为10

View view = LayoutInflater.from(context)
.inflate(R.layout.movie_recorder_view, this);
mSurfaceView = (SurfaceView) view.findViewById(R.id.surfaceview);
mProgressBar = (ProgressBar) view.findViewById(R.id.recorder_progressBar);
mProgressBar.setMax(mRecordMaxTime);// 设置进度条最大量

mSurfaceHolder = mSurfaceView.getHolder();
mSurfaceHolder.addCallback(new CustomCallBack());
mSurfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);

a.recycle();
}

public MovieRecorderView(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
}

@Override
public void onInfo(MediaRecorder mr, int what, int extra) {

}

private class CustomCallBack implements SurfaceHolder.Callback {

@Override
public void surfaceCreated(SurfaceHolder holder) {
if (!isOpenCamera)
return;
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) {
if (!isOpenCamera)
return;
freeCameraResource();
}

}

/**
* 初始化摄像头
*/
private void initCamera() throws IOException {
if (mCamera != null) {
freeCameraResource();
}
try {
mCamera = Camera.open();
} catch (Exception e) {
e.printStackTrace();
freeCameraResource();
}
if (mCamera == null)
return;

setCameraParams();
mCamera.setDisplayOrientation(90);
mCamera.setPreviewDisplay(mSurfaceHolder);
mCamera.startPreview();
}

/**
* 设置摄像头为竖屏
*/
private void setCameraParams() {
if (mCamera != null) {
Camera.Parameters params = mCamera.getParameters();
params.set("orientation", "portrait");
mCamera.setParameters(params);
}
}

private void createRecordDir() {
//录制的视频保存文件夹
File sampleDir = new File(Environment.getExternalStorageDirectory()
+ File.separator + "ysb/video/");//录制视频的保存地址
if (!sampleDir.exists()) {
sampleDir.mkdirs();
}
File vecordDir = sampleDir;
// 创建文件
try {
mVecordFile = File.createTempFile("recording", ".mp4", vecordDir);// mp4格式的录制的视频文件
} catch (IOException e) {
e.printStackTrace();
}
}

/**
* 初始化
* @throws IOException
*/
@SuppressLint("NewApi")
private boolean initRecord() throws IOException {
mMediaRecorder = new MediaRecorder();

// Step 1: Unlock and set camera to MediaRecorder
mCamera.unlock();
mMediaRecorder.setCamera(mCamera);

// Step 2: Set sources
mMediaRecorder.setAudioSource(MediaRecorder.AudioSource.CAMCORDER);
mMediaRecorder.setVideoSource(MediaRecorder.VideoSource.CAMERA);

// Step 3: Set a CamcorderProfile (requires API Level 8 or higher)
//mMediaRecorder.setProfile(CamcorderProfile.get(CamcorderProfile.QUALITY_HIGH));
CamcorderProfile highCameraProfile = CamcorderProfile.get(CamcorderProfile.QUALITY_HIGH);
mMediaRecorder.setProfile(highCameraProfile);
mMediaRecorder.setMaxDuration(100000); // MAXDuration 10 seconds
mMediaRecorder.setMaxFileSize(20000000); // MAXSIZE 20 megabytes
mMediaRecorder.setOrientationHint(90);// 输出旋转90度，保持竖屏录制

// Step 4: Set output file
mMediaRecorder.setOutputFile(mVecordFile.getAbsolutePath());
// Step 5: Set the preview output
mMediaRecorder.setPreviewDisplay(mSurfaceHolder.getSurface());

// Step 6: Prepare configured MediaRecorder
try {
mMediaRecorder.prepare();
} catch (IllegalStateException e) {
Log.d("TAG", "IllegalStateException preparing MediaRecorder: " + e.getMessage());
releaseRecord();
return false;
} catch (IOException e) {
Log.d("TAG", "IOException preparing MediaRecorder: " + e.getMessage());
releaseRecord();
return false;
}
return true;
}

/**
* 开始录制视频
*            视频储存位置
* @param onRecordFinishListener
*            达到指定时间之后回调接口
*/
public void record(final OnRecordFinishListener onRecordFinishListener) {
this.mOnRecordFinishListener = onRecordFinishListener;
createRecordDir();
try {
if (!isOpenCamera)// 如果未打开摄像头，则打开
initCamera();
if (initRecord()== true) {
// Camera is available and unlocked, MediaRecorder is prepared,
// now you can start recording
mMediaRecorder.start();
}
else {
// prepare didn't work, release the camera
releaseRecord();
// inform user
}
mTimeCount = 0;
// 时间计数器重新赋值
mTimer = new Timer();
mTimer.schedule(new TimerTask() {

@Override
public void run() {
mTimeCount++;
// 设置进度条
if (mTimeCount == mRecordMaxTime) {
// 达到指定时间，停止拍摄
stop();
if (mOnRecordFinishListener != null)
mOnRecordFinishListener.onRecordFinish();
}
}
}, 0, 1000);
} catch (IOException e) {
e.printStackTrace();
}
}

/**
* 停止拍摄
*/
public void stop() {
stopRecord();
releaseRecord();
freeCameraResource();
}

/**
* 停止录制
*/
public void stopRecord() {
mProgressBar.setProgress(0);
if (mTimer != null)
mTimer.cancel();
if (mMediaRecorder != null) {
try {
mMediaRecorder.stop();
mMediaRecorder.reset();
} catch (IllegalStateException e) {
e.printStackTrace();
} catch (RuntimeException e) {
e.printStackTrace();
} catch (Exception e) {
e.printStackTrace();
}
}
}

/**
* 释放资源
*/
private void releaseRecord() {
if (mMediaRecorder != null) {
mMediaRecorder.reset();
// clear recorder configuration
// release the recorder object
mMediaRecorder = null;
mCamera.lock();
// lock camera for later use
}
}

/**
* 释放摄像头资源
*/
private void freeCameraResource() {
if (mCamera != null) {
mCamera.setPreviewCallback(null);
mCamera.stopPreview();
mCamera.release();
mCamera = null;
}
}

public int getTimeCount() {
return mTimeCount;
}

//返回录制的视频文件
public File getmVecordFile() {
return mVecordFile;
}

/**
* 录制完成回调接口
*/
public interface OnRecordFinishListener {
public void onRecordFinish();
}

@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();
}
}
}

-2.对应的布局：

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@android:color/background_dark"
android:orientation="vertical">

<SurfaceView
android:id="@+id/surfaceview"
android:layout_width="fill_parent"
android:layout_height="0dp"
android:layout_weight="1"
/>

<ProgressBar
android:id="@+id/recorder_progressBar"
style="?android:attr/progressBarStyleHorizontal"
android:layout_width="match_parent"
android:layout_height="5dp"
android:progressDrawable="@drawable/progressbar"/>

</LinearLayout>

-3.接下来是主Activity，MovieRecorderActivity.class

public class MovieRecorderActivity extends AppCompatActivity {

private MovieRecorderView mRecorderView;//视频录制控件
private Button mShootBtn;//视频开始录制按钮
private boolean isFinish = true;
private boolean success = false;//防止录制完成后出现多次跳转事件

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main_movie_recorder);
mRecorderView = (MovieRecorderView) findViewById(R.id.movieRecorderView);
mShootBtn = (Button) findViewById(R.id.shoot_button);

//用户长按事件监听
mShootBtn.setOnTouchListener(new View.OnTouchListener() {

@Override
public boolean onTouch(View v, MotionEvent event) {
if (event.getAction() == MotionEvent.ACTION_DOWN) {//用户按下拍摄按钮
mShootBtn.setBackgroundResource(R.drawable.bg_movie_add_shoot_select);
mRecorderView.record(new MovieRecorderView.OnRecordFinishListener() {

@Override
public void onRecordFinish() {
}
});
} else if (event.getAction() == MotionEvent.ACTION_UP) {//用户抬起拍摄按钮
mShootBtn.setBackgroundResource(R.drawable.bg_movie_add_shoot);
if (mRecorderView.getTimeCount() > 3){//判断用户按下时间是否大于3秒
if(!success){
success = true;
handler.sendEmptyMessage(1);
}
} else {
success = false;
if (mRecorderView.getmVecordFile() != null)
mRecorderView.getmVecordFile().delete();//删除录制的过短视频
mRecorderView.stop();//停止录制
Toast.makeText(MovieRecorderActivity.this, "视频录制时间太短", Toast.LENGTH_SHORT).show();
}
}
return true;
}
});
}

@Override
public void onResume() {
super.onResume();
isFinish = true;
if (mRecorderView.getmVecordFile() != null)
mRecorderView.getmVecordFile().delete();//视频使用后删除
}

@Override
public void onPause() {
super.onPause();
}

@Override
public void onDestroy() {
super.onDestroy();
}

private Handler handler = new Handler() {
@Override
public void handleMessage(Message msg) {
if(success){
finishActivity();
}
}
};

//视频录制结束后，跳转的函数
private void finishActivity() {
if (isFinish) {
mRecorderView.stop();
Intent intent = new Intent(this, SuccessActivity.class);
Bundle bundle = new Bundle();
bundle.putString("text", mRecorderView.getmVecordFile().toString());
intent.putExtras(bundle);
startActivity(intent);
}
success = false;
}

}

-4.对应的.XML布局

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@android:color/white"
android:orientation="vertical">

<com.ruisi.food.main.MovieRecorderView
android:id="@+id/movieRecorderView"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"
android:layout_margin="3dp" />

<Button
android:id="@+id/shoot_button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:background="@drawable/bg_movie_add_shoot"
android:text="按住拍"
android:textColor="#ffffff"/>

</LinearLayout>

-5.最后再把里面用到的资源文件切上，bg_movie_add_shoot.xml和bg_movie_add_shoot_select.xml

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="oval">
<size android:height="100dp" android:width="100dp" ></size>
<solid android:color="#0099ff" ></solid>
</shape>
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="oval">
<size android:height="100dp" android:width="100dp" ></size>
<solid android:color="#cccc99" ></solid>
</shape>