Unity Android 录屏实现
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);
}
}AndroidManifest.xml
<?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
}
}
}
