Android in grado di connettersi al servizio di fotocamera

Question

Quando l'utente fa clic sulla macchina fotografica, esso apre schermata successiva dopo pochi secondi si getta Fail to connect to camera service

e dire cannot connect to camera

Questo è il mio codice:

public void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    View viewLoad = LayoutInflater.from(CameraActivity.this).inflate(R.layout.camera, null); 
    setContentView(viewLoad); 

    Bundle bundle = this.getIntent().getExtras(); 
    seletctedRetailer = bundle.getString("RetailerName"); 
    retailerCode = bundle.getString("RetailerCode"); 

    Intent cameraIntent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE); 
    Bundle b = new Bundle(); 
    b.putString("Activity", "RetailerOrderSActivity"); 
    b.putString("RetailerName", seletctedRetailer); 
    b.putString("RetailerCode", retailerCode); 

    cameraIntent.putExtras(b); 
    getParent().getParent().setTitle("Image Capture"); 
    startActivityForResult(cameraIntent,CAMERA_PIC_REQUEST); 

    vale +=1; 

    Button imgMCancel =(Button)findViewById(R.id.imgMCancel); 
    imgMCancel.setOnClickListener(new OnClickListener() { 
     public void onClick(View v) { 
      Intent i = new Intent(getBaseContext(), CameraMainActivity.class); 
      Bundle bundle = new Bundle(); 
      bundle.putString("Activity", "CameraMainActivity"); 
      bundle.putString("RetailerName", seletctedRetailer); 
      bundle.putString("RetailerCode", retailerCode); 
      i.putExtras(bundle); 
      View vi = SalesActivityGroup.group.getLocalActivityManager().startActivity("CameraMainActivity", i.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP)).getDecorView(); 
      SalesActivityGroup.group.replaceView(vi); 
     } 
    }); 
} 

protected void onActivityResult(int requestCode, int resultCode, Intent data) { 
    super.onActivityResult(requestCode, resultCode, data); 
     if (resultCode == CAMERA_PIC_REQUEST) { 
      System.out.println("====YES======"); 
      Bitmap thumbnail = (Bitmap) data.getExtras().get("data"); 
       ImageView image = (ImageView) findViewById(R.id.imageView1); 
       image.setImageBitmap(thumbnail); 
     } 
} 

Questo è il mio layout:

 <?xml version="1.0" encoding="utf-8"?> 

<LinearLayout android:id="@+id/header" 
       android:layout_height="wrap_content" 
       android:layout_marginBottom="10dp" 
       android:layout_marginTop="75dp" 
       android:layout_width="fill_parent"> 


     <Button android:layout_width="wrap_content" 
       android:text="Cancel" 
       android:textColor="#FFFFFF" 
       android:background="@drawable/btn_red" 
       android:layout_height="wrap_content" 
       android:layout_marginLeft="5dp" 
       android:layout_marginRight="150dp" 
       android:id="@+id/imgMCancel" 
       > 
     </Button> 

     <Button android:layout_width="wrap_content" 
       android:layout_height="wrap_content" 
       android:id="@+id/buttonClick" 
       android:text="Make Photo" 
       android:textColor="#FFFFFF" 
       android:background="@drawable/btn_red" 
       android:layout_gravity="center"> 
     </Button> 


    </LinearLayout> 

Questo è il mio file AndroidManifest.xml

 <activity android:name=".sales.CameraActivity"    android:screenOrientation="landscape" android:configChanges="orientation|keyboardHidden" android:clearTaskOnLaunch="false"> 
     <intent-filter> 
      <action android:name="android.media.action.IMAGE_CAPTURE" /> 
      <category android:name="android.intent.category.DEFAULT" /> 
     </intent-filter> 
    </activity> 

Ho fatto questo in base a questo link http://mobile.tutsplus.com/tutorials/android/android-sdk-quick-tip-launching-the-camera/

please help me ciò che è un'applicazione issue.My contiene Tab ActivityGroup.

Grazie in anticipo ..

Answer 1

Ecco il mio codice di applicazione - speriamo vi sia utile:

public class CameraActivity extends Activity { 
    ImageView img_logo; 
    public static Bitmap bitmap; 
    public static String selectedImagePath=""; 
    protected boolean _taken; 
    protected static final String PHOTO_TAKEN = "photo_taken"; 
    int count = 0; 
    static String image1 = ""; 
    /*static String _path=""; 
    Bitmap bita; 
    ParsingForCabDetails obj_ParsingForCabDetails; 
    InputStream is; 
    protected boolean _taken; 
    protected static final String PHOTO_TAKEN = "photo_taken";*/ 
    ProgressDialog pd; 
    //ImageView iv; 
    Button cancel,Ok; 
    String alert=""; 
    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.camera); 

     img_logo = (ImageView) findViewById(R.id.camera_image); 
     cancel = (Button) findViewById(R.id.camera_taken); 
     upload = (Button) findViewById(R.id.camerabtnupload); 

     if(image1.length()<= 0) 
     startCameraActivity(); 

     upload.setOnClickListener(new OnClickListener() { 

      public void onClick(View v) { 
       finish(); 
       if(image1.length() > 0){ 
       pd = ProgressDialog.show(SmallyTaxiTabbar.tabContext, "", "Loading...."); 
       new Thread(new Runnable() { 

         public void run() { 

          LoardServer(); 
          handler.sendEmptyMessage(0); 

         } 
        }).start(); 

      } 
       else 
        Toast.makeText(getApplicationContext(),"No Capture Image",2000).show(); 
      } 


     }); 
     img_logo.setOnClickListener(new OnClickListener() { 

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

     cancel.setOnClickListener(new OnClickListener() { 

      public void onClick(View v) { 
       finish(); 
       selectedImagePath= ""; 
       image1=""; 
       } 
     }); 


    } 


    public void LoardServer() { 
    // this is use for upload image or save image 

    } 


    private Handler handler = new Handler(){ 
     public void handleMessage(android.os.Message msg) { 
      pd.dismiss(); 
      finish(); 
      if(alert.length() >0){ 
       Log.d("hello","alert"+alert); 
       Toast.makeText(getApplicationContext(),alert, 2000).show(); 
      } 
      else 
       FindCabDetails.iv_camera.setImageBitmap(bitmap); 

      selectedImagePath= ""; 
      image1=""; 

     }; 
    }; 
    protected void startCameraActivity() { 
     selectedImagePath = Environment.getExternalStorageDirectory() + "/default"+count+".jpg"; 
     count++; 
     File file = new File(selectedImagePath); 
     Uri outputFileUri = Uri.fromFile(file); 
     Intent intent = new Intent (android.provider.MediaStore.ACTION_IMAGE_CAPTURE); 
     intent.putExtra(MediaStore.EXTRA_OUTPUT, outputFileUri); 
     startActivityForResult(intent, 0); 
     } 
     @Override 
     protected void onActivityResult(int requestCode, int resultCode, Intent data) { 
     switch (resultCode) { 
     case -1: 
     onPhotoTaken(); 
     break; 
     } 
     } 
     protected void onPhotoTaken() { 
     _taken = true; 
     bitmap = BitmapFactory.decodeFile(selectedImagePath); 
     bitmap = decodeFile(); 
     image1 = selectedImagePath; 
     img_logo.setImageBitmap(bitmap); 

     } 
     @Override 
     protected void onRestoreInstanceState(Bundle savedInstanceState) { 
     if (savedInstanceState.getBoolean(PHOTO_TAKEN)) { 
     onPhotoTaken(); 
     } 
     } 
     @Override 
     protected void onSaveInstanceState(Bundle outState) { 
     outState.putBoolean(PHOTO_TAKEN, _taken); 
     } 
     private Bitmap decodeFile() { 
     try { 
     // decode image size 
     BitmapFactory.Options o = new BitmapFactory.Options(); 
     o.inJustDecodeBounds = true; 
     BitmapFactory.decodeStream(new FileInputStream(selectedImagePath), null, o); 
     final int REQUIRED_SIZE = 70; 
     int width_tmp = o.outWidth, height_tmp = o.outHeight; 
     int scale = 1; 
     while (true) { 
     if (width_tmp/2 < REQUIRED_SIZE 
     || height_tmp/2 < REQUIRED_SIZE) 
     break; 
     width_tmp /= 2; 
     height_tmp /= 2; 
     scale++; 
     } 
     // decode with inSampleSize 
     BitmapFactory.Options o2 = new BitmapFactory.Options(); 
     o2.inSampleSize = scale; 
     return BitmapFactory.decodeStream(new FileInputStream(selectedImagePath), null, o2); 
     } catch (FileNotFoundException e) { 
     } 
     return null; 
     } 
     public boolean onKeyDown(int keyCode, KeyEvent event) { 
      if(keyCode==KeyEvent.KEYCODE_BACK) 
      { 
       finish(); 
      } 
      return super.onKeyDown(keyCode, event); 
     } 

} 

Utilizzare questa camera.xml

<?xml version="1.0" encoding="utf-8"?> 
    <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" 
     android:orientation="vertical" android:background="#FFFFFF" android:layout_height="fill_parent" android:layout_width="fill_parent"> 
     <RelativeLayout android:id="@+id/relativeLayout1" 
      android:layout_width="fill_parent" 
      android:background="@drawable/bottoombg" android:layout_height="wrap_content"> 
      <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_centerVertical="true" 
       android:layout_centerHorizontal="true" android:textColor="#FBB917" 
       android:textStyle="bold" android:textSize="20dip" android:id="@+id/txtCabNametitle" android:text="Camera"></TextView> 
      <Button android:layout_alignParentRight="true" android:layout_centerVertical="true" 
       android:background="@drawable/filter_btn1" 
       android:layout_marginRight="5dip" 
       android:layout_height="30dip" android:textColor="#FFFFFF" android:text="Upload" android:layout_width="70dip" android:id="@+id/camerabtnupload"></Button> 
      <Button android:layout_centerVertical="true" android:background="@drawable/btn_press_effect" android:layout_height="30dip" android:textColor="#FFFFFF" android:paddingLeft="10dip" android:id="@+id/camera_taken" android:text="Cancel" android:layout_width="70dip"></Button> 
     </RelativeLayout> 
     <ImageView android:id="@+id/camera_image" android:layout_centerVertical="true" android:layout_centerHorizontal="true" android:layout_height="200dip" android:layout_width="200dip"></ImageView> 
    </RelativeLayout> 

AndroidManifest.xml

<uses-permission android:name="android.permission.CAMERA" /> 
<uses-feature android:name="android.hardware.camera" /> 
<uses-feature android:name="android.hardware.camera.autofocus" /> 

Answer 2

Hai dimenticato qualcosa nella vostra manifesta, guarda qui Camera Class

Aggiungi questo al vostro manifesto:

<uses-permission android:name="android.permission.CAMERA" /> 
<uses-feature android:name="android.hardware.camera" /> 
<uses-feature android:name="android.hardware.camera.autofocus" /> 

Speranza che aiuta!

Answer 3

è necessario sbloccare fotocamera prima di ottenere la visualizzazione dell'anteprima e bloccare correttamente la fotocamera prima di chiuderla la tua app. Se la fotocamera non è bloccata correttamente, la prossima volta la tua app potrebbe generare un'eccezione. Quindi, devi riavviare il tuo dispositivo ...