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最近再做一个项目,要求unity与原生android混合开发,要求点击unity按钮,android实现录屏功能并将录制内容保存到相册中,实现相册及时刷新,查阅了一下文档,android在5.0之后的api才开放了录屏接口。。。下面是实现:
package com.Xreal.TJYH; 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.view.KeyEvent; import android.widget.RelativeLayout; import android.widget.Toast; import java.io.File; import java.io.IOException; public class u3d 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 RelativeLayout mU3d; 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(u3d.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(u3d.this,"录制结束",Toast.LENGTH_SHORT).show(); }else { Toast.makeText(u3d.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); setContentView(R.layout.activity_u3d); mediaRecorder = new MediaRecorder(); metrics = new DisplayMetrics(); getWindowManager().getDefaultDisplay().getMetrics(metrics); /** * 动态注册权限 */ if (ContextCompat.checkSelfPermission(u3d.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(u3d.this, Manifest.permission.RECORD_AUDIO) != PackageManager.PERMISSION_GRANTED) { ActivityCompat.requestPermissions(this, new String[] {Manifest.permission.RECORD_AUDIO}, AUDIO_REQUEST_CODE); } currentActivity = this; mU3d = (RelativeLayout) findViewById(R.id.u3d); mU3d.addView(mUnityPlayer); 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; } } @Override public boolean onKeyUp(int keyCode, KeyEvent event) { if (keyCode == KeyEvent.KEYCODE_BACK){ mUnityPlayer.quit(); } return super.onKeyUp(keyCode, event); } 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); } }
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