android 视频开发二分之1（仿美拍，糗百）

最近比较忙，很久没更新博客，今天我们仿一个美拍或者糗事百科的录像功能。

首先确认步奏：
1、打开摄像头；
2、开始录制；
3、支持分段录制，并支持分段删除；
4、把分段录制的视频进行合并；

不说废话了先上图：

其实布局没什么好看的，布局就不看了，直接上代码。

package com.example.shipin;import java.io.File;import java.io.IOException;import java.util.ArrayList;import java.util.List;import android.annotation.SuppressLint;import android.app.AlertDialog;import android.app.AlertDialog.Builder;import android.content.DialogInterface;import android.content.Intent;import android.content.SharedPreferences;import android.graphics.Color;import android.hardware.Camera;import android.hardware.Camera.CameraInfo;import android.hardware.Camera.Parameters;import android.media.CamcorderProfile;import android.media.MediaRecorder;import android.media.MediaRecorder.OnErrorListener;import android.media.MediaRecorder.OnInfoListener;import android.os.Build;import android.os.Bundle;import android.os.CountDownTimer;import android.os.Environment;import android.os.Handler;import android.preference.PreferenceManager;import android.provider.MediaStore;import android.view.KeyEvent;import android.view.MotionEvent;import android.view.SurfaceHolder;import android.view.SurfaceView;import android.view.View;import android.view.View.OnClickListener;import android.view.View.OnTouchListener;import android.widget.ImageButton;import android.widget.ImageView;import android.widget.LinearLayout;import android.widget.RelativeLayout.LayoutParams;import android.widget.Toast;public class VideoNewActivity extends BaseActivity implements SurfaceHolder.Callback {    /** 视频最大支持15秒 */    public static final int VIDEO_TIME_END = 15;    /** 视频最少必须5秒 */    public static final int VIDEO_TIME = 5;    /** 最少得录制多少秒 */    private ImageView img_at_last;    /** 闪现光标图片 */    private ImageView img_shan;    /** 删除录制 */    private ImageView img_delete;    /** 开始录制 */    private ImageButton img_start;    /** 确认 */    private ImageView img_enter;    /** 闪光灯切换 */    private ImageView img_flashlight;    /** 摄像头切换 */    private ImageView img_camera;    /** 选择录像 */    private ImageView img_video;    /** 返回按钮 */    private ImageView img_back;    /** 计时器 */    private TimeCount timeCount;    /** 录制了多少秒 */    private int now;    /** 每次录制结束时是多少秒 */    private int old;    /** 录制进度控件 */    private LinearLayout linear_seekbar;    /** 屏幕宽度 */    private int width;    /** 偶数才执行 */    private int even;    /** 是否点击删除了一次 */    private boolean isOnclick = false;    /** 录制视频集合 */    private ArrayList<VideoNewBean> list;    /** 录制bean */    private VideoNewBean bean;    /** 为了能保存到bundler 录制bean */    private VideoNewParentBean parent_bean;    /** 录制视频保存文件 */    private String vedioPath;    /** 合并之后的视频文件 */    private String videoPath_merge;    /** 是否满足视频的最少播放时长 */    private boolean isMeet = false;    /** 录制视频的类 */    private MediaRecorder mMediaRecorder;    /** 摄像头对象 */    private Camera mCamera;    /** 显示的view */    private SurfaceView surfaceView;    /** 摄像头参数 */    private Parameters mParameters;    // /** 视频输出质量 */    private CamcorderProfile mProfile;    /** 文本属性获取器 */    private SharedPreferences mPreferences;    /** 刷新界面的回调 */    private SurfaceHolder mHolder;    /** 1表示后置，0表示前置 */    private int cameraPosition = 1;    /** 路径 */    private String Ppath = Environment.getExternalStorageDirectory().getAbsolutePath() + "/videoTest/";    // /** 压缩jni */    // private LoadJNI vk;    @Override    protected int getContentViewId() {        return R.layout.activity_video_new;    }    @SuppressWarnings("deprecation")    @Override    protected void findViews() {        img_camera = (ImageView) findViewById(R.id.video_new_img_right);        img_flashlight = (ImageView) findViewById(R.id.video_new_img_flashlight);        surfaceView = (SurfaceView) findViewById(R.id.video_new_surfaceview);        img_at_last = (ImageView) findViewById(R.id.video_new_img_time_atlast);        img_shan = (ImageView) findViewById(R.id.video_new_img_time_start);        img_delete = (ImageView) findViewById(R.id.video_new_img_delete);        img_start = (ImageButton) findViewById(R.id.video_new_img_start);        img_enter = (ImageView) findViewById(R.id.video_new_img_enter);        img_back = (ImageView) findViewById(R.id.video_new_img_back);        img_video = (ImageView) findViewById(R.id.video_new_img_video);        linear_seekbar = (LinearLayout) findViewById(R.id.video_new_seekbar);        width = getWindowManager().getDefaultDisplay().getWidth();        LayoutParams layoutParam = (LayoutParams) surfaceView.getLayoutParams();        // 高：宽 4 : 3        layoutParam.height = width / 3 * 4;        // 隐藏多少dp才能让屏幕显示正常像素        layoutParam.topMargin = -(width / 3 * 4 - width - DisplayUtil.dip2px(VideoNewActivity.this, 44));        surfaceView.setLayoutParams(layoutParam);        LayoutParams layoutParams = (LayoutParams) img_at_last.getLayoutParams();        layoutParams.leftMargin = width / VIDEO_TIME_END * VIDEO_TIME;        img_at_last.setLayoutParams(layoutParams);    }    @Override    protected void onSaveInstanceState(Bundle outState) {        parent_bean.setList(list);        outState.putSerializable("parent_bean", parent_bean);        super.onSaveInstanceState(outState);    }    @Override    protected void onRestoreInstanceState(Bundle savedInstanceState) {        parent_bean = (VideoNewParentBean) savedInstanceState.getSerializable("parent_bean");        list = parent_bean.getList();        super.onRestoreInstanceState(savedInstanceState);    }    @SuppressWarnings("deprecation")    @Override    protected void init() {        handler.postDelayed(runnable, 0);        even = 0;        old = 0;        // 创建文件夹        File file = new File(Ppath);        if (!file.exists()) {            file.mkdir();        }        list = new ArrayList<VideoNewBean>();        parent_bean = new VideoNewParentBean();        // 安装一个SurfaceHolder.Callback        mHolder = surfaceView.getHolder();        mHolder.addCallback(this);        // 针对低于3.0的Android        mHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);        mPreferences = PreferenceManager.getDefaultSharedPreferences(this);        readVideoPreferences();    }    @Override    protected void onStart() {        super.onStart();        // 获取Camera实例        mCamera = getCamera();        if (mCamera != null) {            // 因为android不支持竖屏录制，所以需要顺时针转90度，让其游览器显示正常            mCamera.setDisplayOrientation(90);            mCamera.lock();            initCameraParameters();        }    }    @Override    protected void onPause() {        super.onPause();        releaseCamera();    }    /**     * 获取摄像头实例     *     * @version 1.0     * @createTime 2015年6月16日,上午10:44:11     * @updateTime 2015年6月16日,上午10:44:11     * @createAuthor WangYuWen     * @updateAuthor WangYuWen     * @updateInfo (此处输入修改内容,若无修改可不写.)     *     * @return     */    private Camera getCamera() {        Camera camera = null;        try {            camera = Camera.open();        } catch (Exception e) {            camera = null;        }        return camera;    }    private Handler handler = new Handler();    private Runnable runnable = new Runnable() {        @Override        public void run() {            if (img_shan.isShown()) {                img_shan.setVisibility(View.GONE);            } else {                img_shan.setVisibility(View.VISIBLE);            }            handler.postDelayed(runnable, 500);        }    };    @SuppressLint("ClickableViewAccessibility")    @Override    protected void widgetListener() {        img_start.setOnTouchListener(new OnTouchListener() {            @Override            public boolean onTouch(View v, MotionEvent event) {                switch (event.getAction()) {                case MotionEvent.ACTION_DOWN:                    if (isOnclick) {                        ((ImageView) linear_seekbar.getChildAt(linear_seekbar.getChildCount() - 2)).setBackgroundColor(getResources().getColor(                                R.color.ff1f8fe4));                    }                    even = 1;                    img_delete.setVisibility(View.VISIBLE);                    img_enter.setVisibility(View.VISIBLE);                    img_video.setVisibility(View.GONE);                    img_camera.setVisibility(View.GONE);                    addView_Red();                    // 构造CountDownTimer对象                    timeCount = new TimeCount(30000 - old, 50);                    timeCount.start();// 开始计时                    startRecord();                    break;                case MotionEvent.ACTION_UP:                    old = now + old;                    if (old >= VIDEO_TIME * 1000) {                        isMeet = true;                    }                    timeCount.cancel();                    addView_black();                    stopRecord();                    break;                }                return false;            }        });        /** 删除按钮 */        img_delete.setOnClickListener(new OnClickListener() {            @Override            public void onClick(View v) {                isOnclick = false;                if (even % 2 == 0) {                    if (linear_seekbar.getChildCount() > 1) {                        linear_seekbar.removeViewAt(linear_seekbar.getChildCount() - 1);                        linear_seekbar.removeViewAt(linear_seekbar.getChildCount() - 1);                    }                    if (list.size() > 0) {                        for (int i = 0; i < list.size(); i++) {                            File file = new File(list.get(list.size() - 1).getPath());                            if (file.exists()) {                                file.delete();                            }                        }                        old -= list.get(list.size() - 1).getTime();                        list.remove(list.size() - 1);                        if (old < VIDEO_TIME * 1000) {                            isMeet = false;                        }                        if (list.size() <= 0) {                            img_delete.setVisibility(View.GONE);                            img_enter.setVisibility(View.GONE);                            img_video.setVisibility(View.VISIBLE);                            img_camera.setVisibility(View.VISIBLE);                        }                    }                } else {                    if (linear_seekbar.getChildCount() > 1) {                        isOnclick = true;                        ((ImageView) linear_seekbar.getChildAt(linear_seekbar.getChildCount() - 2)).setBackgroundColor(getResources().getColor(                                R.color.ff135689));                    }                }                even++;            }        });        /** 开启或关闭闪光灯 */        img_flashlight.setOnClickListener(new OnClickListener() {            @Override            public void onClick(View v) {                if (cameraPosition != 0) {// 前置摄像头的时候不能切换闪光灯                    if (mParameters != null) {                        if (mParameters.getFlashMode() != null && mParameters.getFlashMode().equals(Parameters.FLASH_MODE_TORCH)) {                            mParameters.setFlashMode(Parameters.FLASH_MODE_OFF);                            img_flashlight.setImageResource(R.drawable.img_video_new_flashlight_close);                        } else if (mParameters.getFlashMode() != null && mParameters.getFlashMode().equals(Parameters.FLASH_MODE_OFF)) {                            mParameters.setFlashMode(Parameters.FLASH_MODE_TORCH);                            img_flashlight.setImageResource(R.drawable.img_video_new_flashlight_open);                        }                        if (mCamera != null) {                            mCamera.setParameters(mParameters);                        }                    }                }            }        });        /** 摄像头切换 */        img_camera.setOnClickListener(new OnClickListener() {            @Override            public void onClick(View v) {                switchCamera();            }        });        /** 确认按钮 */        img_enter.setOnClickListener(new OnClickListener() {            @Override            public void onClick(View v) {                if (isMeet) {                    int size = list.size();                    String[] strs = new String[size];                    videoPath_merge = Ppath + System.currentTimeMillis() + ".mp4";                    for (int i = 0; i < size; i++) {                        strs[i] = list.get(i).getPath();                    }                    try {                        FUckTest.appendVideo(strs, videoPath_merge);                        for (int i = size - 1; i >= 0; i--) {                            File file = new File(list.get(i).getPath());                            if (file.exists()) {                                file.delete();                            }                            list.remove(i);                        }                        Intent it = new Intent(VideoNewActivity.this,VideoActivity.class);                        it.putExtra("path", videoPath_merge);                        startActivity(it);                    } catch (IOException e) {                        e.printStackTrace();                    }                } else {                    Toast.makeText(VideoNewActivity.this, "视频最少必须录制5秒以上才能用！", Toast.LENGTH_LONG).show();                }            }        });        /** 选择录像按钮 */        img_video.setOnClickListener(new OnClickListener() {            @Override            public void onClick(View v) {                //下一篇博客将会加进来            }        });        img_back.setOnClickListener(new OnClickListener() {            @Override            public void onClick(View v) {                if (list.size() > 0) {                    exitVideoNewDialog();                } else {                    releaseCamera();                    finish();                }            }        });        surfaceView.setOnClickListener(new OnClickListener() {            @Override            public void onClick(View v) {                if (mParameters != null && mCamera != null) {                    mParameters.setFocusMode(Parameters.FOCUS_MODE_AUTO);                    try {                        mCamera.setParameters(mParameters);                    } catch (Exception e) {                        e.printStackTrace();                    }                }            }        });    }    @Override    public boolean dispatchKeyEvent(KeyEvent event) {        if (event.getKeyCode() == KeyEvent.KEYCODE_BACK) {            if (event.getAction() == KeyEvent.ACTION_DOWN && event.getRepeatCount() == 0) {                if (list.size() > 0) {                    exitVideoNewDialog();                } else {                    releaseCamera();                    finish();                }            }            return true;        }        return super.dispatchKeyEvent(event);    }    /**     * 弹出对话框     *     * @version 1.0     * @createTime 2015年6月16日,下午3:45:35     * @updateTime 2015年6月16日,下午3:45:35     * @createAuthor WangYuWen     * @updateAuthor WangYuWen     * @updateInfo (此处输入修改内容,若无修改可不写.)     *     */    private void exitVideoNewDialog() {        AlertDialog.Builder builder = new Builder(VideoNewActivity.this);        builder.setMessage("确定放弃这段视频吗？");        builder.setTitle("温馨提示");        builder.setPositiveButton("确认", new DialogInterface.OnClickListener() {            @Override            public void onClick(DialogInterface dialog, int which) {                dialog.dismiss();                for (int i = 0; i < list.size(); i++) {                    File file = new File(list.get(i).getPath());                    if (file.exists()) {                        file.delete();                    }                }                finish();            }        });        builder.create().show();    }    /**     * 切换摄像头     *     * @version 1.0     * @createTime 2015年6月16日,上午10:40:17     * @updateTime 2015年6月16日,上午10:40:17     * @createAuthor WangYuWen     * @updateAuthor WangYuWen     * @updateInfo (此处输入修改内容,若无修改可不写.)     *     */    @SuppressLint("NewApi")    private void switchCamera() {        // 切换前后摄像头        int cameraCount = 0;        CameraInfo cameraInfo = new CameraInfo();        cameraCount = Camera.getNumberOfCameras();// 得到摄像头的个数        for (int i = 0; i < cameraCount; 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                    // 前置摄像头时必须关闭闪光灯，不然会报错                    if (mParameters != null) {                        if (mParameters.getFlashMode() != null && mParameters.getFlashMode().equals(Parameters.FLASH_MODE_TORCH)) {                            mParameters.setFlashMode(Parameters.FLASH_MODE_OFF);                            img_flashlight.setImageResource(R.drawable.img_video_new_flashlight_close);                        }                        if (mCamera != null) {                            mCamera.setParameters(mParameters);                        }                    }                    // 释放Camera                    releaseCamera();                    // 打开当前选中的摄像头                    mCamera = Camera.open(i);                    mCamera.setDisplayOrientation(90);                    mCamera.lock();                    // 通过surfaceview显示取景画面                    setStartPreview(mHolder);                    cameraPosition = 0;                    break;                }            } else {                // 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                    // 释放Camera                    releaseCamera();                    // 打开当前选中的摄像头                    mCamera = Camera.open(i);                    mCamera.setDisplayOrientation(90);                    mCamera.lock();                    // 通过surfaceview显示取景画面                    setStartPreview(mHolder);                    cameraPosition = 1;                    break;                }            }        }    }    /**     * 定义一个倒计时的内部类     *      * @Description     * @author     * @version 1.0     * @date 2015-5-25     * @Copyright: Copyright (c) 2015 Shenzhen Utoow Technology Co., Ltd.     *             All rights reserved.     */    private class TimeCount extends CountDownTimer {        public TimeCount(long millisInFuture, long countDownInterval) {            super(millisInFuture, countDownInterval);// 参数依次为总时长,和计时的时间间隔        }        @Override        public void onFinish() {// 计时完毕时触发        }        @Override        public void onTick(long millisUntilFinished) {// 计时过程显示            now = (int) (30000 - millisUntilFinished - old);            if ((old > 0 && old > VIDEO_TIME * 1000) || (old == 0 && now > VIDEO_TIME * 1000)) {                img_enter.setEnabled(true);            }            if (linear_seekbar.getChildCount() > 0) {                ImageView img = (ImageView) linear_seekbar.getChildAt(linear_seekbar.getChildCount() - 1);                LinearLayout.LayoutParams layoutParams = (LinearLayout.LayoutParams) img.getLayoutParams();                layoutParams.width = (int) (((float) now / 1000f) * (width / VIDEO_TIME_END)) + 1;                img.setLayoutParams(layoutParams);            }        }    }    /**     * 初始化摄像头参数     *     * @version 1.0     * @createTime 2015年6月15日,下午4:53:41     * @updateTime 2015年6月15日,下午4:53:41     * @createAuthor WangYuWen     * @updateAuthor WangYuWen     * @updateInfo (此处输入修改内容,若无修改可不写.)     *     */    @SuppressWarnings("deprecation")    private void initCameraParameters() {        // 初始化摄像头参数        mParameters = mCamera.getParameters();        mParameters.setPreviewSize(mProfile.videoFrameWidth, mProfile.videoFrameHeight);        mParameters.setPreviewFrameRate(mProfile.videoFrameRate);        mParameters.setFocusMode(Parameters.FOCUS_MODE_AUTO);        // 设置白平衡参数。        String whiteBalance = mPreferences.getString("pref_camera_whitebalance_key", "auto");        if (isSupported(whiteBalance, mParameters.getSupportedWhiteBalance())) {            mParameters.setWhiteBalance(whiteBalance);        }        // 参数设置颜色效果。        String colorEffect = mPreferences.getString("pref_camera_coloreffect_key", "none");        if (isSupported(colorEffect, mParameters.getSupportedColorEffects())) {            mParameters.setColorEffect(colorEffect);        }        try {            mCamera.setParameters(mParameters);        } catch (Exception e) {            e.printStackTrace();        }    }    /**     * 开始录制     *     * @version 1.0     * @createTime 2015年6月15日,下午4:48:49     * @updateTime 2015年6月15日,下午4:48:49     * @createAuthor WangYuWen     * @updateAuthor WangYuWen     * @updateInfo (此处输入修改内容,若无修改可不写.)     *     */    @SuppressLint("NewApi")    private void startRecord() {        try {            bean = new VideoNewBean();            vedioPath = Ppath + System.currentTimeMillis() + ".mp4";            bean.setPath(vedioPath);            mCamera.unlock();            mMediaRecorder = new MediaRecorder();// 创建mediaRecorder对象            mMediaRecorder.setCamera(mCamera);            // 设置录制视频源为Camera(相机)            mMediaRecorder.setVideoSource(MediaRecorder.VideoSource.CAMERA);            mMediaRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);            mMediaRecorder.setProfile(mProfile);            // mMediaRecorder.setVideoSize(560,560);//设置视频大小（分辨率）            mMediaRecorder.setVideoEncodingBitRate(1024 * 1024);// 设置视频一次写多少字节(可调节视频空间大小)            // 最大期限            mMediaRecorder.setMaxDuration(35 * 1000);            // 第4步:指定输出文件 ， 设置视频文件输出的路径            mMediaRecorder.setOutputFile(vedioPath);            mMediaRecorder.setPreviewDisplay(mHolder.getSurface());            // // 设置保存录像方向            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.GINGERBREAD) {                if (cameraPosition == 1) {                    //由于不支持竖屏录制，后置摄像头需要把视频顺时针旋转90度、、但是视频本身在电脑上看还是逆时针旋转了90度                    mMediaRecorder.setOrientationHint(90);                } else if (cameraPosition == 0) {                    //由于不支持竖屏录制，前置摄像头需要把视频顺时针旋转270度、、而前置摄像头在电脑上则是顺时针旋转了90度                    mMediaRecorder.setOrientationHint(270);                }            }            mMediaRecorder.setOnInfoListener(new OnInfoListener() {                @Override                public void onInfo(MediaRecorder mr, int what, int extra) {                }            });            mMediaRecorder.setOnErrorListener(new OnErrorListener() {                @Override                public void onError(MediaRecorder mr, int what, int extra) {                    recodError();                }            });            // 第6步:根据以上配置准备MediaRecorder            mMediaRecorder.prepare();            mMediaRecorder.start();        } catch (IllegalStateException e) {            e.printStackTrace();            recodError();        } catch (IOException e) {            e.printStackTrace();            recodError();        } catch (RuntimeException e) {            e.printStackTrace();            recodError();        }    }    /**     * 异常处理     *     * @version 1.0     * @createTime 2015年6月16日,上午10:49:18     * @updateTime 2015年6月16日,上午10:49:18     * @createAuthor WangYuWen     * @updateAuthor WangYuWen     * @updateInfo (此处输入修改内容,若无修改可不写.)     *     */    private void recodError() {        AlertDialog.Builder builder = new Builder(VideoNewActivity.this);        builder.setMessage("该设备暂不支持视频录制");        builder.setTitle("出错啦");        builder.setPositiveButton("确认", new DialogInterface.OnClickListener() {            @Override            public void onClick(DialogInterface dialog, int which) {                dialog.dismiss();                finish();            }        });        builder.create().show();    }    /**     * 结束录制     *     * @version 1.0     * @createTime 2015年6月15日,下午4:48:53     * @updateTime 2015年6月15日,下午4:48:53     * @createAuthor WangYuWen     * @updateAuthor WangYuWen     * @updateInfo (此处输入修改内容,若无修改可不写.)     *     */    private void stopRecord() {        if (bean != null) {            if (list.size() > 0) {                bean.setTime(now - list.get(list.size() - 1).getTime());            } else {                bean.setTime(now);            }            bean.setCameraPosition(cameraPosition);            list.add(bean);        }        if (mMediaRecorder != null) {            try {                // 停止录像，释放camera                mMediaRecorder.setOnErrorListener(null);                mMediaRecorder.setOnInfoListener(null);                mMediaRecorder.stop();                // 清除recorder配置                mMediaRecorder.reset();                // 释放recorder对象                mMediaRecorder.release();                mMediaRecorder = null;                // 没超过3秒就删除录制所有数据                if (old < 3000) {                    clearList();                }            } catch (Exception e) {                clearList();            }        }    }    /**     * 清楚数据     *     * @version 1.0     * @createTime 2015年6月25日,下午6:04:28     * @updateTime 2015年6月25日,下午6:04:28     * @createAuthor WangYuWen     * @updateAuthor WangYuWen     * @updateInfo (此处输入修改内容,若无修改可不写.)     *     */    private void clearList() {        Toast.makeText(VideoNewActivity.this, "单次录制视频最少3秒", Toast.LENGTH_LONG).show();        if (linear_seekbar.getChildCount() > 1) {            linear_seekbar.removeViewAt(linear_seekbar.getChildCount() - 1);            linear_seekbar.removeViewAt(linear_seekbar.getChildCount() - 1);        }        if (list.size() > 0) {            for (int i = 0; i < list.size(); i++) {                File file = new File(list.get(list.size() - 1).getPath());                if (file.exists()) {                    file.delete();                }            }            list.remove(list.size() - 1);            if (list.size() <= 0) {                img_delete.setVisibility(View.GONE);                img_enter.setVisibility(View.GONE);                img_video.setVisibility(View.VISIBLE);                img_camera.setVisibility(View.VISIBLE);            }        }    }    private static boolean isSupported(String value, List<String> supported) {        return supported == null ? false : supported.indexOf(value) >= 0;    }    public static boolean getVideoQuality(String quality) {        return "youtube".equals(quality) || "high".equals(quality);    }    /**     * 设置摄像头参数     *     * @version 1.0     * @createTime 2015年6月15日,下午5:12:31     * @updateTime 2015年6月15日,下午5:12:31     * @createAuthor WangYuWen     * @updateAuthor WangYuWen     * @updateInfo (此处输入修改内容,若无修改可不写.)     *     */    private void readVideoPreferences() {        String quality = mPreferences.getString("pref_video_quality_key", "high");        boolean videoQualityHigh = getVideoQuality(quality);        // 设置视频质量。        Intent intent = getIntent();        if (intent.hasExtra(MediaStore.EXTRA_VIDEO_QUALITY)) {            int extraVideoQuality = intent.getIntExtra(MediaStore.EXTRA_VIDEO_QUALITY, 0);            videoQualityHigh = (extraVideoQuality > 0);        }        videoQualityHigh = false;        mProfile = CamcorderProfile.get(videoQualityHigh ? CamcorderProfile.QUALITY_HIGH : CamcorderProfile.QUALITY_LOW);        mProfile.videoFrameWidth = (int) (mProfile.videoFrameWidth * 2.0f);        mProfile.videoFrameHeight = (int) (mProfile.videoFrameHeight * 2.0f);        mProfile.videoBitRate = 256000 * 3;        CamcorderProfile highProfile = CamcorderProfile.get(CamcorderProfile.QUALITY_HIGH);        mProfile.videoCodec = highProfile.videoCodec;        mProfile.audioCodec = highProfile.audioCodec;        mProfile.fileFormat = MediaRecorder.OutputFormat.MPEG_4;    }    /**     * 添加红色进度条     *     * @version 1.0     * @createTime 2015年6月15日,下午3:04:21     * @updateTime 2015年6月15日,下午3:04:21     * @createAuthor WangYuWen     * @updateAuthor WangYuWen     * @updateInfo (此处输入修改内容,若无修改可不写.)     *     */    private void addView_Red() {        ImageView img = new ImageView(VideoNewActivity.this);        img.setBackgroundColor(getResources().getColor(R.color.ff1f8fe4));        LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(DisplayUtil.dip2px(VideoNewActivity.this, 1), LinearLayout.LayoutParams.MATCH_PARENT);        img.setLayoutParams(layoutParams);        linear_seekbar.addView(img);    }    /**     * 添加黑色断条     *     * @version 1.0     * @createTime 2015年6月15日,下午3:03:52     * @updateTime 2015年6月15日,下午3:03:52     * @createAuthor WangYuWen     * @updateAuthor WangYuWen     * @updateInfo (此处输入修改内容,若无修改可不写.)     *     */    private void addView_black() {        ImageView img = new ImageView(VideoNewActivity.this);        img.setBackgroundColor(Color.BLACK);        LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(DisplayUtil.dip2px(VideoNewActivity.this, 2), LinearLayout.LayoutParams.MATCH_PARENT);        img.setLayoutParams(layoutParams);        linear_seekbar.addView(img);    }    @Override    public void surfaceCreated(SurfaceHolder holder) {        setStartPreview(holder);    }    @Override    public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {        // 先开启在关闭 先开启录制在关闭可以 解决游览的时候比较卡顿的现象，但是会有视频开启时声音。打开这个功能时较慢        // startRecord();        // stopRecord();    }    @Override    public void surfaceDestroyed(SurfaceHolder holder) {        releaseCamera();    }    /**     * 设置camera显示取景画面,并预览     *     * @version 1.0     * @createTime 2015年6月16日,上午10:48:15     * @updateTime 2015年6月16日,上午10:48:15     * @createAuthor WangYuWen     * @updateAuthor WangYuWen     * @updateInfo (此处输入修改内容,若无修改可不写.)     *     * @param holder     */    private void setStartPreview(SurfaceHolder holder) {        try {            if (mCamera != null) {                mCamera.setPreviewDisplay(holder);                mCamera.startPreview();            }        } catch (IOException e) {        }    }    /**     * 释放Camera     *     * @version 1.0     * @createTime 2015年6月16日,上午10:38:08     * @updateTime 2015年6月16日,上午10:38:08     * @createAuthor WangYuWen     * @updateAuthor WangYuWen     * @updateInfo (此处输入修改内容,若无修改可不写.)     *     */    private void releaseCamera() {        if (mCamera != null) {            mCamera.setPreviewCallback(null);            mCamera.stopPreview();// 停掉原来摄像头的预览            mCamera.release();            mCamera = null;        }    }}

核心代码就这么点。bean之类的其他工具类的没贴出来，如果需要看效果的朋友可以去下载demo；

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