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开通立享签到涨空间特权java代码：
package com.cayden.import java.io.IOEimport java.util.Limport com.cayden.videorecord.util.LogsUimport com.cayden.videorecord.util.SupportedSizesR
import android.app.A
import android.content.C
import android.graphics.PixelF
import android.hardware.C
import android.hardware.Camera.CameraI
import android.hardware.Camera.S
import android.media.AudioM
import android.media.MediaP
import android.media.MediaPlayer.OnBufferingUpdateL
import android.media.MediaPlayer.OnCompletionL
import android.media.MediaR
import android.os.B
import android.util.DisplayM
import android.view.D
import android.view.SurfaceH
import android.view.SurfaceHolder.C
import android.view.SurfaceV
import android.view.V
import android.view.WindowM
import android.widget.B
import android.widget.ImageV
import android.widget.TextV
* @author zhujiabin
* @version 1.0.0
public class RecordActivity extends Activity implements Callback,
MediaPlayer.OnPreparedListener, OnBufferingUpdateListener,
OnCompletionListener {
private static final String TAG = "RecordActivity";
private String videoPath = "/sdcard/love.3gp";
private MediaRe// 录制视频的类
private MediaPlayer mediaP// 播放视频的类
private SurfaceV// 显示视频的控件
private SurfaceHolder surfaceH// 实现这个接口的Callback接口
private boolean isRecord = false; // 是否正在录制true录制中 false未录制
public boolean isCameraBack = true;
private ImageView recordIv;
private ImageView recordPlayIv;
private int cameraPosition = 1;// 0代表前置摄像头，1代表后置摄像头
private int mVideoW
private int mVideoH
int cameraCount = 0;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.video_record);
setTitleStr("");
getWindow().setFormat(PixelFormat.TRANSLUCENT);// 选择支持半透明模式,在有surfaceview的activity中使用。
initView();
private void initView() {
surfaceview = (SurfaceView) this.findViewById(R.id.surfaceview);
recordIv = (ImageView) findViewById(R.id.recordIv);
recordPlayIv = (ImageView) findViewById(R.id.recordPlayIv);
SurfaceHolder holder = surfaceview.getHolder();// 取得holder
holder.addCallback(this);// holder加入回调接口
holder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);// setType必须设置，要不出错.
recordIv.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
recordVideo(v);
public void playVideo(View v) {
// 播放视频
recordPlayIv.setVisibility(View.GONE);
mediaPlayer = new MediaPlayer();
mediaPlayer.setDataSource(videoPath);
mediaPlayer.setDisplay(surfaceHolder);
mediaPlayer.prepareAsync();
} catch (IllegalArgumentException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IllegalStateException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
mediaPlayer.setOnBufferingUpdateListener(this);
mediaPlayer.setOnCompletionListener(this);
mediaPlayer.setOnPreparedListener(this);
mediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);
public void recordVideo(View v) {
// 开始录制/停止录制
if (isRecord) {
isRecord = false;
recordIv.setImageResource(R.drawable.video_recorder_start_btn_nor);
recordPlayIv.setVisibility(View.VISIBLE);
if (mediarecorder != null) {
// 停止录制
mediarecorder.stop();
// 释放资源
mediarecorder.release();
mediarecorder = null;
if (camera != null) {
camera.release();
isRecord = true;
recordIv.setImageResource(R.drawable.video_recorder_recording_btn);
recordPlayIv.setVisibility(View.GONE);
if (camera != null) {
camera.release();
if (cameraPosition == 1) {
camera = Camera.open(Camera.CameraInfo.CAMERA_FACING_BACK);//打开摄像头
camera = deal(camera);
//视频旋转90度
mediarecorder.setOrientationHint(90);
camera = Camera.open(Camera.CameraInfo.CAMERA_FACING_FRONT);//打开摄像头
Camera.Parameters parameters = camera.getParameters();
camera.setDisplayOrientation(90);
camera.setParameters(parameters);
//视频旋转90度
mediarecorder.setOrientationHint(270);
camera.unlock();
mediarecorder.setCamera(camera);
// 设置录制视频源为Camera(相机)
mediarecorder.setVideoSource(MediaRecorder.VideoSource.CAMERA);
// 设置录制完成后视频的封装格式THREE_GPP为3gp.MPEG_4为mp4
mediarecorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);
// 设置录制的视频编码h263 h264
mediarecorder.setVideoEncoder(MediaRecorder.VideoEncoder.H264);
// 设置视频录制的分辨率。必须放在设置编码和格式的后面，否则报错
mediarecorder.setVideoSize(176, 144);
// 设置录制的视频帧率。必须放在设置编码和格式的后面，否则报错
mediarecorder.setVideoFrameRate(20);
mediarecorder.setPreviewDisplay(surfaceHolder.getSurface());
// 设置视频文件输出的路径
mediarecorder.setOutputFile(videoPath);
// 准备录制
mediarecorder.prepare();
mediarecorder.start();
} catch (IllegalStateException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
protected void setTitleStr(String str) {
TextView titleText = (TextView) findViewById(R.id.common_title_text);
titleText.setText(str.trim());
Button left_button = (Button) findViewById(R.id.left_button);
left_button.setVisibility(View.GONE);
Button right_button = (Button) findViewById(R.id.right_button);
right_button.setVisibility(View.VISIBLE);
right_button.setText("");
right_button.setBackgroundResource(R.drawable.btn_video_switch_bg);
right_button.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
// TODO Auto-generated method stub
cameraCount = Camera.getNumberOfCameras();
if (isCameraBack) {
isCameraBack = false;
isCameraBack = true;
int cameraCount = 0;
CameraInfo cameraInfo = new CameraInfo();
cameraCount = Camera.getNumberOfCameras();
for (int i = 0; i & cameraC i++) {
Camera.getCameraInfo(i, cameraInfo);//得到每一个摄像头的信息
if (cameraPosition == 1) {
//现在是后置，变更为前置
if (cameraInfo.facing == Camera.CameraInfo.CAMERA_FACING_FRONT) {//代表摄像头的方位，CAMERA_FACING_FRONT前置
CAMERA_FACING_BACK后置
camera.stopPreview();//停掉原来摄像头的预览?
camera.release();//释放资源
camera = null;//取消原来摄像头
camera = Camera.open(i);//打开当前选中的摄像头
deal(camera);
camera.setPreviewDisplay(surfaceHolder);//通过surfaceview显示取景画面
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
camera.startPreview();//开始预览
cameraPosition = 0;
//现在是前置， 变更为后置
if (cameraInfo.facing == Camera.CameraInfo.CAMERA_FACING_BACK) {// 代表摄像头的方位，CAMERA_FACING_FRONT前置
// CAMERA_FACING_BACK后置
camera.stopPreview();// 停掉原来摄像头的预览
camera.release();// 停掉原来摄像头的预览
camera = null;// 释放资源
camera = Camera.open(i);// 取消原来摄像头
deal(camera);
camera.setPreviewDisplay(surfaceHolder);// 通过surfaceview显示取景画面
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
camera.startPreview();// 开始预览
cameraPosition = 1;
public void back() {
public Camera deal(Camera camera) {
// 设置camera预览的角度，因为默认图片是倾斜90度的
camera.setDisplayOrientation(90);
Size pictureSize = null;
Size previewSize = null;
Camera.Parameters parameters = camera.getParameters();
parameters.setPreviewFrameRate(5);
// 设置旋转代码
parameters.setRotation(90);
List&Size& supportedPictureSizes = SupportedSizesReflect
.getSupportedPictureSizes(parameters);
List&Size& supportedPreviewSizes = SupportedSizesReflect
.getSupportedPreviewSizes(parameters);
if (supportedPictureSizes != null && supportedPreviewSizes != null
&& supportedPictureSizes.size() & 0
&& supportedPreviewSizes.size() & 0) {
pictureSize = supportedPictureSizes.get(0);
int maxSize = 1280;
if (maxSize & 0) {
for (Size size : supportedPictureSizes) {
if (maxSize &= Math.max(size.width, size.height)) {
pictureSize =
WindowManager windowManager = (WindowManager) getSystemService(Context.WINDOW_SERVICE);
Display display = windowManager.getDefaultDisplay();
DisplayMetrics displayMetrics = new DisplayMetrics();
display.getMetrics(displayMetrics);
previewSize = getOptimalPreviewSize(supportedPreviewSizes,
display.getWidth(), display.getHeight());
parameters.setPictureSize(pictureSize.width, pictureSize.height);
parameters.setPreviewSize(previewSize.width, previewSize.height);
camera.setParameters(parameters);
public void surfaceChanged(SurfaceHolder holder, int arg1, int arg2,
int arg3) {
// 将holder，这个holder为开始在oncreat里面取得的holder，将它赋给surfaceHolder
surfaceHolder =
private Size getOptimalPreviewSize(List&Size& sizes, int w, int h) {
final double ASPECT_TOLERANCE = 0.1;
double targetRatio = (double) w /
if (sizes == null)
return null;
Size optimalSize = null;
double minDiff = Double.MAX_VALUE;
int targetHeight =
// Try to find an size match aspect ratio and size
for (Size size : sizes) {
double ratio = (double) size.width / size.
if (Math.abs(ratio - targetRatio) & ASPECT_TOLERANCE)
if (Math.abs(size.height - targetHeight) & minDiff) {
optimalSize =
minDiff = Math.abs(size.height - targetHeight);
// Cannot find the one match the aspect ratio, ignore the requirement
if (optimalSize == null) {
minDiff = Double.MAX_VALUE;
for (Size size : sizes) {
if (Math.abs(size.height - targetHeight) & minDiff) {
optimalSize =
minDiff = Math.abs(size.height - targetHeight);
return optimalS
public void surfaceCreated(SurfaceHolder holder) {
// TODO Auto-generated method stub
surfaceHolder =
if (isCameraBack) {
camera = Camera.open(Camera.CameraInfo.CAMERA_FACING_BACK);// 鎵撳紑鎽勫儚澶?
camera = Camera.open(Camera.CameraInfo.CAMERA_FACING_FRONT);// 鎵撳紑鎽勫儚澶?
// 设置camera预览的角度，因为默认图片是倾斜90度的
camera.setDisplayOrientation(90);
Size pictureSize = null;
Size previewSize = null;
Camera.Parameters parameters = camera.getParameters();
parameters.setPreviewFrameRate(5);
// 设置旋转代码
parameters.setRotation(90);
List&Size& supportedPictureSizes = SupportedSizesReflect
.getSupportedPictureSizes(parameters);
List&Size& supportedPreviewSizes = SupportedSizesReflect
.getSupportedPreviewSizes(parameters);
if (supportedPictureSizes != null && supportedPreviewSizes != null
&& supportedPictureSizes.size() & 0
&& supportedPreviewSizes.size() & 0) {
pictureSize = supportedPictureSizes.get(0);
int maxSize = 1280;
if (maxSize & 0) {
for (Size size : supportedPictureSizes) {
if (maxSize &= Math.max(size.width, size.height)) {
pictureSize =
WindowManager windowManager = (WindowManager) getSystemService(Context.WINDOW_SERVICE);
Display display = windowManager.getDefaultDisplay();
DisplayMetrics displayMetrics = new DisplayMetrics();
display.getMetrics(displayMetrics);
previewSize = getOptimalPreviewSize(supportedPreviewSizes,
display.getWidth(), display.getHeight());
parameters
.setPictureSize(pictureSize.width, pictureSize.height);
parameters
.setPreviewSize(previewSize.width, previewSize.height);
camera.setParameters(parameters);
camera.setPreviewDisplay(holder);
camera.startPreview();
} catch (Exception e) {
e.printStackTrace();
public void surfaceDestroyed(SurfaceHolder arg0) {
// TODO Auto-generated method stub
if (camera != null) {
camera.release();
surfaceview = null;
surfaceHolder = null;
if (surfaceHolder != null) {
surfaceHolder = null;
if (mediarecorder != null) {
mediarecorder = null;
if (mediaPlayer != null) {
mediaPlayer.release();
mediaPlayer = null;
public void onCompletion(MediaPlayer arg0) {
// TODO Auto-generated method stub
LogsUtil.i(TAG, "onCompletion");
if (mediaPlayer != null) {
mediaPlayer.release();
mediaPlayer = null;
recordPlayIv.setVisibility(View.VISIBLE);
public void onPrepared(MediaPlayer arg0) {
// TODO Auto-generated method stub
mVideoWidth = mediaPlayer.getVideoWidth();
mVideoHeight = mediaPlayer.getVideoHeight();
if (mVideoWidth != 0 && mVideoHeight != 0) {
surfaceHolder.setFixedSize(mVideoWidth, mVideoHeight);// 设置视频的宽度和高度
mediaPlayer.start();// 开始播放
public void onBufferingUpdate(MediaPlayer player, int arg1) {
// TODO Auto-generated method stub
布局文件代码：
&?xml version="1.0" encoding="utf-8"?&
&RelativeLayout android:orientation="vertical"
android:layout_width="fill_parent" android:background="@drawable/login_bj"
android:layout_height="fill_parent" xmlns:android="http://schemas.android.com/apk/res/android"&
&include android:id="@+id/Title"
android:layout_alignParentTop="true"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
layout="@layout/layout_common_title"/&
&LinearLayout
android:layout_below="@+id/Title"
android:layout_above="@+id/recordBtn"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:padding="30dp"
&SurfaceView
android:id="@+id/surfaceview"
android:layout_width="fill_parent"
android:layout_height="fill_parent" /&
&/LinearLayout&
&RelativeLayout
android:id="@+id/videoPlay"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:gravity="center"
&ImageView
android:src="@drawable/btn_video_play_bg"
android:id="@+id/recordPlayIv"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:clickable="true"
android:onClick="playVideo"
android:visibility="gone"
&/RelativeLayout&
&RelativeLayout
android:id="@+id/recordBtn"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:layout_alignParentBottom="true"&
&ImageView
android:src="@drawable/video_recorder_start_btn_nor"
android:id="@+id/recordIv"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:clickable="true"
android:onClick="recordVideo"
&/RelativeLayout&
&/RelativeLayout&
这里还有一些地方需要完善，在录制完成后切换会出现问题。由于时间关系这边还没去处理，在后续会进行处理，
此代码采用的sdk是17，由于在android 2.2上录制视频是横着，所以采用了高点的sdk
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