1. 홈
  2. 질의 응답
  3. 오류가

오류가

2011-04-25 2 views
0

내가 비디오 레코더를 개발하고오류가

내 코드

package com.app.UI; 

import java.io.File; 
import java.io.IOException; 

import com.app.utils.Logger; 

import android.app.Activity; 
import android.graphics.PixelFormat; 
import android.hardware.Camera; 
import android.media.MediaRecorder; 
import android.os.Bundle; 
import android.os.Environment; 
import android.util.Log; 
import android.view.SurfaceHolder; 
import android.view.SurfaceView; 
import android.view.View; 
import android.view.View.OnClickListener; 
import android.widget.Button; 
import android.widget.Toast; 

public class main extends Activity implements SurfaceHolder.Callback{ 
    /** Called when the activity is first created. */ 
    private static final String TAG = "CAMERA_TUTORIAL"; 

    Button btnStart, btnStop, btnPlay; 
    private SurfaceView surfaceView; 
    private SurfaceHolder surfaceHolder; 
    private Camera camera; 
    private boolean previewRunning; 

    private MediaRecorder mediaRecorder; 
    private final int maxDurationInMs = 20000; 
    private final long maxFileSizeInBytes = 500000; 
    private final int videoFramesPerSecond = 20; 

    public static String pathname = "/sdcard/recorder.amr"; 


    @Override 
    public void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.main); 
     surfaceView = (SurfaceView) findViewById(R.id.surface_camera); 
     surfaceHolder = surfaceView.getHolder(); 
     surfaceHolder.addCallback(this); 
     surfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS); 
     btnStart = (Button)findViewById(R.id.btnStart); 
     btnStop = (Button)findViewById(R.id.btnStop); 
     btnStart.setOnClickListener(new OnClickListener() { 

      @Override 
      public void onClick(View v) { 
       // TODO Auto-generated method stub 
       startRecording(); 
      } 
     }); 

     btnStop.setOnClickListener(new OnClickListener() { 

      @Override 
      public void onClick(View v) { 
       // TODO Auto-generated method stub 
       stopRecording(); 
      } 
     }); 
    } 

    @Override 
    public void surfaceChanged(SurfaceHolder holder, int format, int width, 
      int height) { 
     // TODO Auto-generated method stub 
     Logger.debug("surface change"); 
     if (previewRunning){ 
      camera.stopPreview(); 
     } 
     Camera.Parameters p = camera.getParameters(); 
     camera.setParameters(p); 

     try { 
      camera.setPreviewDisplay(holder); 
      camera.startPreview(); 
      previewRunning = true; 
     } 
     catch (IOException e) { 
      Log.e(TAG,e.getMessage()); 
      e.printStackTrace(); 
     } 

    } 

    @Override 
    public void surfaceCreated(SurfaceHolder holder) { 
     // TODO Auto-generated method stub 
     Logger.debug("surface created"); 
     camera = Camera.open(); 
     if (camera != null){ 
      Camera.Parameters params = camera.getParameters(); 
      camera.setParameters(params); 
     } 
    } 

    @Override 
    public void surfaceDestroyed(SurfaceHolder holder) { 
     // TODO Auto-generated method stub 
     Logger.debug("surface destroy"); 
     camera.stopPreview(); 
     previewRunning = false; 
     camera.release(); 
    } 

    public boolean startRecording(){ 
     try { 
      //camera.unlock(); 

      mediaRecorder = new MediaRecorder(); 

      mediaRecorder.setCamera(camera); 
      mediaRecorder.setAudioSource(MediaRecorder.AudioSource.MIC); 
      mediaRecorder.setVideoSource(MediaRecorder.VideoSource.CAMERA); 

      mediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.DEFAULT); 

      mediaRecorder.setMaxDuration(maxDurationInMs); 

      File sdCard = Environment.getExternalStorageDirectory(); 
      File dir = new File (sdCard.getAbsolutePath() + "/My Recording"); 
      dir.mkdirs(); 
      File tempFile = new File(dir, "myvideo.mp4"); 

      mediaRecorder.setOutputFile(tempFile.getAbsolutePath()); 

      //mediaRecorder.setVideoFrameRate(videoFramesPerSecond); 
      //mediaRecorder.setVideoSize(surfaceView.getWidth(), surfaceView.getHeight()); 

      mediaRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.DEFAULT); 
      mediaRecorder.setVideoEncoder(MediaRecorder.VideoEncoder.DEFAULT); 

      mediaRecorder.setPreviewDisplay(surfaceHolder.getSurface()); 

      //mediaRecorder.setMaxFileSize(maxFileSizeInBytes); 

      mediaRecorder.prepare(); 
      mediaRecorder.start(); 

      return true; 
     } catch (IllegalStateException e) { 
      Log.e(TAG,e.getMessage()); 
      e.printStackTrace(); 
      return false; 
     } catch (IOException e) { 
      Log.e(TAG,e.getMessage()); 
      e.printStackTrace(); 
      return false; 
     } 
    } 

    public void stopRecording(){ 
     try{ 
      mediaRecorder.stop(); 
      mediaRecorder.release(); 
     } 
     catch (IllegalStateException e) { 
      // TODO: handle exception 
      Logger.debug(""+e.getMessage()); 
     } 
     //camera.lock(); 
    } 

}

하고 매니페스트 파일에서 나는 시작을 클릭하면 내 문제는 지금

<?xml version="1.0" encoding="utf-8"?> 
<manifest xmlns:android="http://schemas.android.com/apk/res/android" 
     package="com.app.UI" 
     android:versionCode="1" 
     android:versionName="1.0"> 
    <application android:icon="@drawable/icon" android:label="@string/app_name"> 
     <activity android:name=".main" 
        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> 
    <uses-sdk android:minSdkVersion="3" /> 
    <uses-permission android:name="android.permission.CAMERA" /> 
    <uses-permission android:name="android.permission.RECORD_AUDIO" /> 
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" /> 
    <uses-feature android:name="android.hardware.camera"/> 
    <uses-feature android:name="android.hardware.camera.autofocus"/> 
</manifest>

쓰기가 버튼과 같은 오류가 표시됩니다.

04-25 17:47:03.817: WARN/System.err(23842): java.io.IOException: prepare failed. 
04-25 17:47:03.817: WARN/System.err(23842):  at android.media.MediaRecorder._prepare(Native Method) 
04-25 17:47:03.817: WARN/System.err(23842):  at android.media.MediaRecorder.prepare(MediaRecorder.java:458) 
04-25 17:47:03.817: WARN/System.err(23842):  at com.app.UI.main.startRecording(main.java:143) 
04-25 17:47:03.827: WARN/System.err(23842):  at com.app.UI.main$1.onClick(main.java:55) 
04-25 17:47:03.827: WARN/System.err(23842):  at android.view.View.performClick(View.java:2344) 
04-25 17:47:03.827: WARN/System.err(23842):  at android.view.View.onTouchEvent(View.java:4133) 
04-25 17:47:03.827: WARN/System.err(23842):  at android.widget.TextView.onTouchEvent(TextView.java:6504) 
04-25 17:47:03.827: WARN/System.err(23842):  at android.view.View.dispatchTouchEvent(View.java:3672) 
04-25 17:47:03.827: WARN/System.err(23842):  at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:882) 
04-25 17:47:03.827: WARN/System.err(23842):  at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:882) 
04-25 17:47:03.827: WARN/System.err(23842):  at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:882) 
04-25 17:47:03.837: WARN/System.err(23842):  at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:882) 
04-25 17:47:03.837: WARN/System.err(23842):  at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:882) 
04-25 17:47:03.837: WARN/System.err(23842):  at com.android.internal.policy.impl.PhoneWindow$DecorView.superDispatchTouchEvent(PhoneWindow.java:1712) 
04-25 17:47:03.837: WARN/System.err(23842):  at com.android.internal.policy.impl.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1202) 
04-25 17:47:03.837: WARN/System.err(23842):  at android.app.Activity.dispatchTouchEvent(Activity.java:1987) 
04-25 17:47:03.837: WARN/System.err(23842):  at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchTouchEvent(PhoneWindow.java:1696) 
04-25 17:47:03.847: WARN/System.err(23842):  at android.view.ViewRoot.handleMessage(ViewRoot.java:1658) 
04-25 17:47:03.847: WARN/System.err(23842):  at android.os.Handler.dispatchMessage(Handler.java:99) 
04-25 17:47:03.847: WARN/System.err(23842):  at android.os.Looper.loop(Looper.java:123) 
04-25 17:47:03.847: WARN/System.err(23842):  at android.app.ActivityThread.main(ActivityThread.java:4203) 
04-25 17:47:03.847: WARN/System.err(23842):  at java.lang.reflect.Method.invokeNative(Native Method) 
04-25 17:47:03.847: WARN/System.err(23842):  at java.lang.reflect.Method.invoke(Method.java:521) 
04-25 17:47:03.847: WARN/System.err(23842):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:791) 
04-25 17:47:03.847: WARN/System.err(23842):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:549) 
04-25 17:47:03.857: WARN/System.err(23842):  at dalvik.system.NativeStart.main(Native Method)

나는 정지 버튼을 클릭 할 때 보여줍니다, 나는 많은 사이트를 reffered하지만 내 문제는 해결할 수없는 내가해야 할

04-25 17:48:03.827: ERROR/AndroidRuntime(23842): Uncaught handler: thread main exiting due to uncaught exception 
04-25 17:48:03.837: ERROR/AndroidRuntime(23842): java.lang.IllegalStateException 
04-25 17:48:03.837: ERROR/AndroidRuntime(23842):  at android.media.MediaRecorder.stop(Native Method) 
04-25 17:48:03.837: ERROR/AndroidRuntime(23842):  at com.app.UI.main.stopRecording(main.java:159) 
04-25 17:48:03.837: ERROR/AndroidRuntime(23842):  at com.app.UI.main$2.onClick(main.java:64) 
04-25 17:48:03.837: ERROR/AndroidRuntime(23842):  at android.view.View.performClick(View.java:2344) 
04-25 17:48:03.837: ERROR/AndroidRuntime(23842):  at android.view.View.onTouchEvent(View.java:4133) 
04-25 17:48:03.837: ERROR/AndroidRuntime(23842):  at android.widget.TextView.onTouchEvent(TextView.java:6504) 
04-25 17:48:03.837: ERROR/AndroidRuntime(23842):  at android.view.View.dispatchTouchEvent(View.java:3672) 
04-25 17:48:03.837: ERROR/AndroidRuntime(23842):  at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:882) 
04-25 17:48:03.837: ERROR/AndroidRuntime(23842):  at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:882) 
04-25 17:48:03.837: ERROR/AndroidRuntime(23842):  at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:882) 
04-25 17:48:03.837: ERROR/AndroidRuntime(23842):  at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:882) 
04-25 17:48:03.837: ERROR/AndroidRuntime(23842):  at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:882) 
04-25 17:48:03.837: ERROR/AndroidRuntime(23842):  at com.android.internal.policy.impl.PhoneWindow$DecorView.superDispatchTouchEvent(PhoneWindow.java:1712) 
04-25 17:48:03.837: ERROR/AndroidRuntime(23842):  at com.android.internal.policy.impl.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1202) 
04-25 17:48:03.837: ERROR/AndroidRuntime(23842):  at android.app.Activity.dispatchTouchEvent(Activity.java:1987) 
04-25 17:48:03.837: ERROR/AndroidRuntime(23842):  at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchTouchEvent(PhoneWindow.java:1696) 
04-25 17:48:03.837: ERROR/AndroidRuntime(23842):  at android.view.ViewRoot.handleMessage(ViewRoot.java:1658) 
04-25 17:48:03.837: ERROR/AndroidRuntime(23842):  at android.os.Handler.dispatchMessage(Handler.java:99) 
04-25 17:48:03.837: ERROR/AndroidRuntime(23842):  at android.os.Looper.loop(Looper.java:123) 
04-25 17:48:03.837: ERROR/AndroidRuntime(23842):  at android.app.ActivityThread.main(ActivityThread.java:4203) 
04-25 17:48:03.837: ERROR/AndroidRuntime(23842):  at java.lang.reflect.Method.invokeNative(Native Method) 
04-25 17:48:03.837: ERROR/AndroidRuntime(23842):  at java.lang.reflect.Method.invoke(Method.java:521) 
04-25 17:48:03.837: ERROR/AndroidRuntime(23842):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:791) 
04-25 17:48:03.837: ERROR/AndroidRuntime(23842):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:549) 
04-25 17:48:03.837: ERROR/AndroidRuntime(23842):  at dalvik.system.NativeStart.main(Native Method)

같은 오류가 하시기 바랍니다 친구는 내가에 대한 검사를 나에게

도움 16 억 장치와 2.2 emulater는

출처

2011-04-25 kinju

답변

-1

이 명단에 추가 : <uses-permission android:name="android.permission.RECORD_VIDEO"/>

출처

2011-04-26 10:22:51 Toshe

0 
1.<uses-permission android:name="android.permission.INTERNET" /> 

<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" /> 
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" /> 
<uses-permission android:name="android.permission.CAMERA" /> 

2.public int SELECT_VIDEO_FILE = 2, REQUEST_CAMERA_VIDEO = 3; 
final CharSequence[] items = {"Take Video", "Choose from Library", 
      "Cancel"}; 
    AlertDialog.Builder builder = new AlertDialog.Builder(getActivity()); 
    builder.setTitle("Add Video!"); 
    builder.setItems(items, new DialogInterface.OnClickListener() { 
     @Override 
     public void onClick(DialogInterface dialog, int item) { 
      if (items[item].equals("Take Video")) { 
       userChoosenTask = "Take Video"; 
       if (result) 
        cameraIntentVideos(); 
      } else 
      if (items[item].equals("Choose from Library")) { 
       userChoosenTask = "Choose from Library"; 
       if (result) 
        galleryIntentVideos(); 
      } else if (items[item].equals("Cancel")) { 
       dialog.dismiss(); 
      } 
     } 
    }); 
    builder.show(); 
} 

3.private void cameraIntentVideos() { 
    Intent takeVideoIntent = new Intent(MediaStore.ACTION_VIDEO_CAPTURE); 
    takeVideoIntent.putExtra(MediaStore.EXTRA_DURATION_LIMIT, 30); 
    if (takeVideoIntent.resolveActivity(getActivity().getPackageManager()) != null) { 
     String fileName = "myvideo.mp4"; 
     ContentValues values = new ContentValues(); 
     values.put(MediaStore.Video.Media.TITLE, fileName); 
     videoUri = getActivity().getContentResolver().insert(MediaStore.Video.Media.EXTERNAL_CONTENT_URI, 
       values); 
     takeVideoIntent.putExtra(MediaStore.EXTRA_OUTPUT, videoUri); 
     startActivityForResult(takeVideoIntent,REQUEST_CAMERA_VIDEO); 
    } 
} 
4. private void galleryIntentVideos() { 
    Intent intentPickVideo = new Intent(Intent.ACTION_PICK, MediaStore.Video.Media.EXTERNAL_CONTENT_URI); 
    startActivityForResult(intentPickVideo, SELECT_VIDEO_FILE); 
5. @Override 
public void onActivityResult(int requestCode, int resultCode, Intent data) { 
    super.onActivityResult(requestCode, resultCode, data); 
    if (resultCode == Activity.RESULT_OK) { 
     if (requestCode == REQUEST_CAMERA_VIDEO) { 
      onCaptureVideoResult(data); 
     } else if (requestCode == SELECT_VIDEO_FILE) { 
      onSelectVideoFromGalleryResult(data); 
     } else { 
      Toast.makeText(getActivity(), "You haven't picked Image", Toast.LENGTH_SHORT).show(); 
     } 
    } 
} 
6.// TODO: 5/31/2017 capture video 
public void onCaptureVideoResult(Intent data) { 
    String[] projection = {MediaStore.Video.Media.DATA}; 
    Cursor cursor = getActivity().managedQuery(videoUri, projection, null, null, null); 
    int column_index_data = cursor.getColumnIndexOrThrow(
      MediaStore.Video.Media.DATA); 
    cursor.moveToFirst(); 
    PicturePath = cursor.getString(column_index_data); 
    String filename=PicturePath.substring(PicturePath.lastIndexOf("/")+1); 
    txtFilePath.setText(filename); 
} 
7. // TODO: 5/31/2017 video from gallery 
private void onSelectVideoFromGalleryResult(Intent data) { 
    if (data != null) { 
     try { 
      Uri uri = data.getData(); 
      String[] filePathColumn = {MediaStore.Video.Media.DATA}; 
      Cursor cursor = getActivity().getContentResolver().query(uri, 
        filePathColumn, null, null, null); 
      if (cursor == null || cursor.getCount() < 1) { 
       return; // no cursor or no record. DO YOUR ERROR HANDLING 
      } 
      cursor.moveToFirst(); 
      int columnIndex = cursor.getColumnIndex(filePathColumn[0]); 
      PicturePath = cursor.getString(columnIndex); 
      cursor.close(); // close cursor 
      if (PicturePath != null) { 
       MediaPlayer mp = MediaPlayer.create(getActivity(), Uri.parse(PicturePath)); 
       int duration = mp.getDuration(); 
       mp.release(); 
       if ((duration/1000) > 30) { 
        Toast.makeText(getActivity(), "Please Select video with maximum 30 seconds limit", Toast.LENGTH_SHORT).show(); 
       } else { 
        //runVideo(PicturePath); 
        String filename=PicturePath.substring(PicturePath.lastIndexOf("/")+1); 
        txtFilePath.setText(filename); 
       } 
      } 

     } catch (Exception e) { 
      e.printStackTrace(); 
     } 
    } else { 
     Toast.makeText(getApplicationContext(), "No Data Found", Toast.LENGTH_SHORT).show(); 
    } 
}

출처

2017-06-01 05:45:25

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