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मैं एक सेवा की पृष्ठभूमि में कैमरा चलाने की कोशिश कर रहा हूं। मैंने How to use Camera to take picture in a background Service on Android?, Taking picture from camera without preview में दिखाए गए तरीके का पालन किया है। यह मैंएंड्रॉइड कैमरा - सेवा से पृष्ठभूमि में चल रहा है
ExperimentalControl.java
package com.example.test2;
import android.app.Service;
import android.content.Intent;
import android.os.IBinder;
import android.util.Log;
public class ExperimentControl extends Service
{
VideoRecorder vRecorder;
public ExperimentControl()
{
Log.i("EXPERIMENT","ExperimentControl started!!!");
}
@Override
public IBinder onBind(Intent intent)
{
return null;
}
public int onStartCommand(Intent intent, int flags, int startId)
{
vRecorder = new VideoRecorder();
vRecorder.startRecording(getApplicationContext());
return START_STICKY;
}
public void onDestroy()
{
vRecorder=null;
}
}
VideoRecorder.java
package com.example.test2;
import java.io.IOException;
import android.content.Context;
import android.hardware.Camera;
import android.media.MediaRecorder;
import android.util.Log;
import android.view.Surface;
import android.view.SurfaceHolder;
import android.view.SurfaceView;
public class VideoRecorder implements SurfaceHolder.Callback
{
String videofolder = android.os.Environment.getExternalStorageDirectory()+"/Record/";
private final String VIDEO_PATH_NAME = videofolder+"test.mp4";
private MediaRecorder mMediaRecorder;
private Camera mCamera;
private SurfaceView mSurfaceView;
private SurfaceHolder mHolder;
private boolean mInitSuccesful;
void startRecording(Context context)
{
Log.v("Surya2","here");
mSurfaceView = new SurfaceView(context);
mHolder = mSurfaceView.getHolder();
mHolder.addCallback(this);
mMediaRecorder.start();
try
{
Thread.sleep(10 * 1000);
}
catch (Exception e)
{
e.printStackTrace();
}
//finish();
Log.v("Surya4","here");
}
private void initRecorder(Surface surface) throws IOException
{
if(mCamera == null)
{
mCamera = Camera.open();
mCamera.unlock();
}
if(mMediaRecorder == null)
mMediaRecorder = new MediaRecorder();
mMediaRecorder.setPreviewDisplay(surface);
mMediaRecorder.setCamera(mCamera);
mMediaRecorder.setVideoSource(MediaRecorder.VideoSource.DEFAULT);
mMediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.MPEG_4);
mMediaRecorder.setVideoEncoder(MediaRecorder.VideoEncoder.H264);
mMediaRecorder.setVideoEncodingBitRate(512 * 1000);
mMediaRecorder.setVideoFrameRate(30);
mMediaRecorder.setVideoSize(640, 480);
mMediaRecorder.setOutputFile(VIDEO_PATH_NAME);
try
{
mMediaRecorder.prepare();
}
catch (IllegalStateException e)
{
e.printStackTrace();
}
mInitSuccesful = true;
}
@Override
public void surfaceCreated(SurfaceHolder holder)
{
try
{
Log.v("Surya3","here");
if(!mInitSuccesful)
initRecorder(mHolder.getSurface());
}
catch (IOException e)
{
e.printStackTrace();
}
}
@Override
public void surfaceDestroyed(SurfaceHolder holder)
{
shutdown();
}
@Override
public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {}
private void shutdown()
{
// Release MediaRecorder and especially the Camera as it's a shared
// object that can be used by other applications
mMediaRecorder.stop();
mMediaRecorder.reset();
mMediaRecorder.release();
mCamera.release();
// once the objects have been released they can't be reused
mMediaRecorder = null;
mCamera = null;
}
}
Manifest.xml
क्या किया है<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.test2"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="17" />
<uses-feature android:name="android.hardware.camera" />
<uses-permission android:name="android.permission.RECORD_AUDIO" />
<uses-permission android:name="android.permission.CAMERA"/>
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.INTERNET"/>
<uses-feature android:name="android.hardware.camera.autofocus" />
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<service android:name=".ExperimentControl" />
</application>
</manifest>
इस तरह से सही है है? और जिस मुख्य समस्या का सामना कर रहा हूं वह यह है कि यह कोई त्रुटि नहीं दिखाता है और न ही लॉग आउटपुट आ रहा है। इसलिए मैं यह पहचानने में असमर्थ हूं कि समस्या का कारण क्या है लेकिन वीडियो रिकॉर्ड नहीं किया गया है। क्या कोई मुझे सही कर सकता है?
अग्रिम