来自Android网站的相机意图不起作用 –Android

概述在这一行：BitmapFactory.decodeFile(mCurrentPhotoPath,bmOptions);它会抛出一个fileNotFound异常.这是Logcat：01-2923:56:12.296:E/BitmapFactory(30046):Unabletodecodestream:java.io.FileNotFoundException:/file:/storage/emulated/0/Pictures/JPEG_20140129_235544_1

在这一行：BitmapFactory.decodefile(mCurrentPhotopath,bmOptions);它会抛出一个fileNotFound异常.这是Logcat：

01-29 23:56:12.296: E/BitmapFactory(30046): Unable to decode stream: java.io.fileNotFoundException: /file:/storage/emulated/0/Pictures/JPEG_20140129_235544_1090805596.jpg: open Failed: ENOENT (No such file or directory)

那是在setPic()中;但是在启动intent时文件会被保存并添加到库中,所以在onActivityResult之前,它应该在那里.你看到有什么问题吗？此代码取自AndroID devloper网站http://developer.android.com/training/camera/photobasics.html

    static final int REQUEST_TAKE_PHOTO = 1001;              private voID dispatchTakePictureIntent() {                  Intent takePictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);                  // Ensure that there's a camera activity to handle the intent                  if (takePictureIntent.resolveActivity(getPackageManager()) != null) {                      // Create the file where the photo should go                      file photofile = null;                      try {                          photofile = createImagefile();                      } catch (IOException ex) {                          // Error occurred while creating the file                      }                      // Continue only if the file was successfully created                      if (photofile != null) {                          takePictureIntent.putExtra(MediaStore.EXTRA_OUTPUT,                                  Uri.fromfile(photofile));                          startActivityForResult(takePictureIntent, REQUEST_TAKE_PHOTO);                      }                  }              }              private voID galleryAddPic() {                    Intent mediaScanIntent = new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_file);                    file f = new file(mCurrentPhotopath);                    Uri contentUri = Uri.fromfile(f);                    mediaScanIntent.setData(contentUri);                    this.sendbroadcast(mediaScanIntent);                }

编辑下一个代码块来自onActivityResult：

else if ((requestCode == REQUEST_TAKE_PHOTO) && (resultcode == -1)){                                     // Uri selectedImage = imageUri;                                              mProfilePicPath = mCurrentPhotopath;                                              mPortraitPhoto = setPic();                                              TextVIEw tv = (TextVIEw) findVIEwByID(ID.ProfilePicText);                                tv.setText(mProfilePicPath);                                          //}                                     // }                          }                  }catch(Exception ex){                          Log.d("shkdghrfb", ex.toString());                  }          }              String mCurrentPhotopath;              private Bitmap setPic() {                    // Get the dimensions of the VIEw                    // Get the dimensions of the bitmap                    BitmapFactory.Options bmOptions = new BitmapFactory.Options();                    bmOptions.inJustDecodeBounds = true;                    BitmapFactory.decodefile(mCurrentPhotopath, bmOptions);                    int photoW = bmOptions.outWIDth;                    int photoH = bmOptions.outHeight;                    // Determine how much to scale down the image                    //int scaleFactor = Math.min(photoW/targetW, photoH/targetH);                    // Decode the image file into a Bitmap sized to fill the VIEw                    bmOptions.inJustDecodeBounds = false;                    bmOptions.inSampleSize = 5;                    bmOptions.inPurgeable = true;                    Bitmap bitmap = BitmapFactory.decodefile(mCurrentPhotopath, bmOptions);                    //mImageVIEw.setimageBitmap(bitmap);                    return bitmap;                }              private file createImagefile() throws IOException {                  // Create an image file name                  String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss").format(new Date());                  String imagefilename = "JPEG_" + timeStamp + "_";                  file storageDir = Environment.getExternalStoragePublicDirectory(                          Environment.DIRECTORY_PICTURES);                  file image = file.createTempfile(                      imagefilename,  /* prefix */                      ".jpg",         /* suffix */                      storageDir      /* directory */                  );                  // Save a file: path for use with ACTION_VIEW intents                  mCurrentPhotopath = "file:" + image.getabsolutePath();                  galleryAddPic();                  return image;              }

我添加的清单权限：

<uses-permission androID:name="androID.permission.CAMERA" androID:required="false" />    <uses-permission androID:name="androID.permission.WRITE_EXTERNAL_STORAGE" />

解决方法:

我认为文件名中的“文件”不是正确的文件名所以删除它.更改了mCurrentPhotopath =“file：”image.getabsolutePath(); to mCurrentPhotopath = image.getabsolutePath();.如果这只是一个黑客修复请告诉我.重要的是,这适用于所有兼容的设备.

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