Unity录屏实现（三）

继续填上次的坑，,本文只是转载，偶尔看见一博客说 5.1有录屏api，好吧，还是看代码吧：

Android代码：

package cn.net.xuefei.unityrec; 
import java.io.File;
import java.io.IOException;
import com.unity3d.player.UnityPlayerActivity;
import android.Manifest;
import android.content.ContentValues;
import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.hardware.display.DisplayManager;
import android.hardware.display.VirtualDisplay;
import android.media.MediaRecorder;
import android.media.projection.MediaProjection;
import android.media.projection.MediaProjectionManager;
import android.os.Bundle;
import android.os.Environment;
import android.os.Handler;
import android.os.Message;
import android.provider.MediaStore;
import android.support.v4.app.ActivityCompat;
import android.support.v4.content.ContextCompat;
import android.util.DisplayMetrics;
import android.widget.Toast;
 
public class MainActivity extends UnityPlayerActivity {
        private static final int RECORD_REQUEST_CODE = 101;
        private static final int STORAGE_REQUEST_CODE = 102;
        private static final int AUDIO_REQUEST_CODE = 103;
        private static final int SHOW = 1;
        private static final int CANCEL = 2;
        private boolean isRecording;
        public static Context currentActivity;
        private MediaProjectionManager mediaProjectionManager;
        private Handler mHandler = new Handler() {
                @Override
                public void handleMessage(Message msg) {
                        super.handleMessage(msg);
                        switch (msg.what) {
                        case SHOW:
                                if (isRecording) {
                                        Toast.makeText(MainActivity.this, "录制已开始", Toast.LENGTH_SHORT).show();
                                } else {
                                        startScreenCapture();
                                        isRecording = true;
                                }
                                break;
                        case CANCEL:
                                if (isRecording) {
                                        mediaRecorder.stop();
                                        mediaRecorder.reset();
                                        mediaProjection.stop();
                                        virtualDisplay.release();
                                        isRecording = false;
                                        insertVideoToMediaStore(getSaveDirectory() + videoName);
                                        Toast.makeText(MainActivity.this, "录制结束", Toast.LENGTH_SHORT).show();
                                } else {
                                        Toast.makeText(MainActivity.this, "没有开始录制", Toast.LENGTH_SHORT).show();
                                }
                                break;
                        }
                }
        };
        private MediaProjection mediaProjection;
        private MediaRecorder mediaRecorder;
        private VirtualDisplay virtualDisplay;
        /**
         * 屏幕的宽度
         */
        private int screenWidth;
        /**
         * 屏幕的高度
         */
        private int screenHeight;
        /**
         * 屏幕的像素
         */
        private int screenDpi;
        private DisplayMetrics metrics;
        /**
         * 保存在相册视频的名字
         */
        private String videoName;
 
        @Override
        protected void onCreate(Bundle savedInstanceState) {
                super.onCreate(savedInstanceState);
                mediaRecorder = new MediaRecorder();
                metrics = new DisplayMetrics();
                getWindowManager().getDefaultDisplay().getMetrics(metrics);
                /**
                 * 动态注册权限
                 */
                if (ContextCompat.checkSelfPermission(MainActivity.this,
                                Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {
                        ActivityCompat.requestPermissions(this, new String[] { Manifest.permission.WRITE_EXTERNAL_STORAGE },
                                        STORAGE_REQUEST_CODE);
                }
                if (ContextCompat.checkSelfPermission(MainActivity.this,
                                Manifest.permission.RECORD_AUDIO) != PackageManager.PERMISSION_GRANTED) {
                        ActivityCompat.requestPermissions(this, new String[] { Manifest.permission.RECORD_AUDIO },
                                        AUDIO_REQUEST_CODE);
                }
                currentActivity = this;
                //mUnityPlayer.requestFocus();
        }
 
        /**
         * unity调用的方法，需要用一个handler进行处理实现功能，直接无法实现。
         */
        public void stopRecordin() {
                mHandler.sendEmptyMessage(CANCEL);
        }
 
        /**
         * unity调用的方法，需要用一个handler进行处理实现功能，直接无法实现。
         */
        public void startRecording() {
                mHandler.sendEmptyMessage(SHOW);
 
        }
 
        private void startScreenCapture() {
                mediaProjectionManager = (MediaProjectionManager) getSystemService(MEDIA_PROJECTION_SERVICE);
                Intent captureIntent = mediaProjectionManager.createScreenCaptureIntent();
                startActivityForResult(captureIntent, RECORD_REQUEST_CODE);
        }
 
        public void setConfig(int screenWidth, int screenHeight, int screenDpi) {
                this.screenWidth = screenWidth;
                this.screenHeight = screenHeight;
                this.screenDpi = screenDpi;
        }
 
        protected void onActivityResult(int requestCode, int resultCode, Intent data) {
                if (requestCode == RECORD_REQUEST_CODE && resultCode == RESULT_OK) {
                        mediaProjection = mediaProjectionManager.getMediaProjection(resultCode, data);
                        setConfig(metrics.widthPixels, metrics.heightPixels, metrics.densityDpi);
                        startRecord();
                        Toast.makeText(this, "开始录制", Toast.LENGTH_SHORT).show();
                }
        }
 
        public boolean startRecord() {
                initRecorder();
                createVirtualDisplay();
                mediaRecorder.start();
                return true;
        }
 
        private void createVirtualDisplay() {
                virtualDisplay = mediaProjection.createVirtualDisplay("MainScreen", screenWidth, screenHeight, screenDpi,
                                DisplayManager.VIRTUAL_DISPLAY_FLAG_AUTO_MIRROR, mediaRecorder.getSurface(), null, null);
        }
 
        private void initRecorder() {
                mediaRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);
                mediaRecorder.setVideoSource(MediaRecorder.VideoSource.SURFACE);
                mediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);
                videoName = System.currentTimeMillis() + ".mp4";
                mediaRecorder.setOutputFile(getSaveDirectory() + videoName);
                mediaRecorder.setVideoSize(screenWidth, screenHeight);
                mediaRecorder.setVideoEncoder(MediaRecorder.VideoEncoder.H264);
                mediaRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);
                mediaRecorder.setVideoEncodingBitRate(5 * 1024 * 1024);
                mediaRecorder.setVideoFrameRate(30);
                try {
                        mediaRecorder.prepare();
                } catch (IOException e) {
                        e.printStackTrace();
                }
        }
 
        public String getSaveDirectory() {
                if (Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) {
                        String screenRecordPath = Environment.getExternalStorageDirectory().getAbsolutePath() + File.separator
                                        + "DCIM" + File.separator + "Camera" + File.separator;
                        return screenRecordPath;
                } else {
                        return null;
                }
        }
 
        public void insertVideoToMediaStore(String filePath) {
                ContentValues values = new ContentValues();
                values.put(MediaStore.MediaColumns.DATA, filePath);
                // video/*
                values.put(MediaStore.MediaColumns.MIME_TYPE, "video/mp4");
                getContentResolver().insert(MediaStore.Video.Media.EXTERNAL_CONTENT_URI, values);
        }
 
        /**
         * 打开相册，
         *
         * @return
         */
        public void openAlbum() {
                Intent intent = new Intent(Intent.ACTION_PICK);
                startActivity(intent);
        }
}

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="cn.net.xuefei.unityrec"
    android:versionCode="1"
    android:versionName="1.0" >
 
  <uses-sdk
      android:minSdkVersion="22"
      android:targetSdkVersion="22" />
  
  <uses-permission android:name="android.permission.RECORD_AUDIO" />
  <!--往sdcard中写入数据的权限 -->
  <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"></uses-permission>
  <!--在sdcard中创建/删除文件的权限 -->
  <uses-permission android:name="android.permission.MOUNT_UNMOUNT_FILESYSTEMS"></uses-permission>
 
  <application
       >
    <activity
        android:name=".MainActivity"
        android:label="@string/app_name" >
      <intent-filter>
        <action android:name="android.intent.action.MAIN" />
 
        <category android:name="android.intent.category.LAUNCHER" />
      </intent-filter>
    </activity>
  </application>
 
</manifest>

Unity代码：

using UnityEngine;
using System.Collections;
 
public class UnityRec : MonoBehaviour
{ 
    // Use this for initialization
    void Start()
    {
 
    }
 
    // Update is called once per frame
    void Update()
    {
 
    }
 
    void OnGUI()
    {
        if (GUI.Button(new Rect(0, 0, 300, 300), "开始录屏"))
        {
#if UNITY_ANDROID
            AndroidJavaClass jc = new AndroidJavaClass("com.unity3d.player.UnityPlayer");
            AndroidJavaObject jo = jc.GetStatic<AndroidJavaObject>("currentActivity");
            jo.Call("startRecording");
#elif UNITY_IPHONE
           
#endif
        }
 
        if (GUI.Button(new Rect(0, 300, 300, 300), "停止录屏"))
        {
# if UNITY_ANDROID
            AndroidJavaClass jc = new AndroidJavaClass("com.unity3d.player.UnityPlayer");
            AndroidJavaObject jo = jc.GetStatic<AndroidJavaObject>("currentActivity");
            jo.Call("stopRecordin");
#elif UNITY_IPHONE
 
#endif
        }
    }
}

我只是在Android 6.0的机器上测试了一下，其他版本，布吉岛哇……

哦，差点忘了，原文地址 http://blog.csdn.net/keepmovingwzc/article/details/53635643

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