当我在横向模式下捕获图像并尝试以纵向模式上传时，我的 android 应用程序显示强制关闭错误。错误如..
java.lang.RuntimeException: Failure delivering result ResultInfo{who=null, request=1, result=-1, data=Intent { act=inline-data dat=file:///mnt/sdcard/Pictures/CameraSample/testphoto20120717_103942-899201574.jpg typ=image/jpeg (has extras) }} to activity {com.freedom.net/com.example.android.photobyintent.PhotoIntentActivity}: java.lang.NullPointerException
在 android.app.ActivityThread.performResumeActivity(ActivityThread.java:2141)
public class PhotoIntentActivity extends MenuActivitySpecific {
private static final int ACTION_TAKE_PHOTO_B = 1;
private static final String BITMAP_STORAGE_KEY = "viewbitmap";
private static final String IMAGEVIEW_VISIBILITY_STORAGE_KEY = "imageviewvisibility";
private ImageView mImageView;
private Bitmap mImageBitmap;
private Handler imageUploadhandler, databaseHandler;
DBAdapter db;
private Dialog dialog;
private String mCurrentPhotoPath;
private Uri imageUri1=null;
private static final String JPEG_FILE_PREFIX = "testphoto";
private static final String JPEG_FILE_SUFFIX = ".jpg";
File afile;
private AlbumStorageDirFactory mAlbumStorageDirFactory = null;
/* Photo album for this application */
private String getAlbumName() {
return getString(R.string.album_name);
}
@Override
public void onWindowFocusChanged(boolean hasFocusFlag) {
super.onWindowFocusChanged(hasFocusFlag);
if (hasFocusFlag) {
openOptionsMenu();
}
}
private File getAlbumDir() {
File storageDir = null;
if (Environment.MEDIA_MOUNTED.equals(Environment.getExternalStorageState())) {
storageDir = mAlbumStorageDirFactory.getAlbumStorageDir(getAlbumName());
if (storageDir != null) {
if (! storageDir.mkdirs()) {
if (! storageDir.exists()){
Log.d("CameraSample", "failed to create directory");
return null;
}
}
}
} else {
Log.v(getString(R.string.app_name), "External storage is not mounted READ/WRITE.");
}
return storageDir;
}
private File createImageFile() throws IOException {
// Create an image file name
String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss").format(new Date());
String imageFileName = JPEG_FILE_PREFIX + timeStamp ;
File albumF = getAlbumDir();
File imageF = File.createTempFile(imageFileName, JPEG_FILE_SUFFIX, albumF);
return imageF;
}
private File setUpPhotoFile() throws IOException {
File f = createImageFile();
mCurrentPhotoPath = f.getAbsolutePath();
return f;
}
private void setPic() {
int targetW = mImageView.getWidth();
int targetH = mImageView.getHeight();
BitmapFactory.Options bmOptions = new BitmapFactory.Options();
bmOptions.inJustDecodeBounds = true;
BitmapFactory.decodeFile(mCurrentPhotoPath, bmOptions);
int photoW = bmOptions.outWidth;
int photoH = bmOptions.outHeight;
/* Figure out which way needs to be reduced less */
int scaleFactor = 1;
if ((targetW > 0) || (targetH > 0)) {
scaleFactor = Math.min(photoW/targetW, photoH/targetH);
}
/* Set bitmap options to scale the image decode target */
bmOptions.inJustDecodeBounds = false;
bmOptions.inSampleSize = scaleFactor;
bmOptions.inPurgeable = true;
/* Decode the JPEG file into a Bitmap */
Bitmap bitmap = BitmapFactory.decodeFile(mCurrentPhotoPath, bmOptions);
Matrix matrix = new Matrix();
matrix.postRotate(90);
Bitmap rotated = Bitmap.createBitmap(bitmap, 0, 0,
bitmap.getWidth(), bitmap.getHeight(),
matrix, true);
mImageView.setImageBitmap(rotated);
mImageView.setVisibility(View.VISIBLE);
}
private void galleryAddPic() {
Intent mediaScanIntent = new Intent("android.intent.action.MEDIA_SCANNER_SCAN_FILE");
afile = new File(mCurrentPhotoPath);
String abcd=afile.toString();
Uri contentUri = Uri.fromFile(afile);
imageUri1 = Uri.parse(abcd);
Uri uri2 = Uri.parse(new File(abcd).toString());
Uri uri3 = Uri.fromFile(new File(abcd));
Log.i("uri1, uri2, uri3 :", imageUri1+","+uri2+","+uri3+"");
mediaScanIntent.setData(contentUri);
this.sendBroadcast(mediaScanIntent);
}
private void dispatchTakePictureIntent(int actionCode) {
Intent takePictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
switch(actionCode) {
case ACTION_TAKE_PHOTO_B:
File f = null;
try {
f = setUpPhotoFile();
mCurrentPhotoPath = f.getAbsolutePath();
takePictureIntent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(f));
} catch (IOException e) {
e.printStackTrace();
f = null;
mCurrentPhotoPath = null;
}
break;
default:
break;
} // switch
startActivityForResult(takePictureIntent, actionCode);
}
private void handleBigCameraPhoto() {
if (mCurrentPhotoPath != null) {
setPic();
galleryAddPic();
mCurrentPhotoPath = null;
}
}
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.cameracapturedimage);
db = new DBAdapter(this);
imageUploadhandler = new Handler();
mImageView = (ImageView) findViewById(R.id.cameraImage);
//mVideoView = (VideoView) findViewById(R.id.videoView1);
mImageBitmap = null;
//mVideoUri = null;
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.FROYO) {
mAlbumStorageDirFactory = new FroyoAlbumDirFactory();
} else {
mAlbumStorageDirFactory = new BaseAlbumDirFactory();
}
dispatchTakePictureIntent(ACTION_TAKE_PHOTO_B);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.menucapturedimage, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle item selection
switch (item.getItemId()) {
case R.id.backToHome:
finish();
return true;
case R.id.save:
upload();
return true;
case R.id.retakePicture:
dispatchTakePictureIntent(ACTION_TAKE_PHOTO_B);
return true;
default:
return super.onOptionsItemSelected(item);
}
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
switch (requestCode) {
case ACTION_TAKE_PHOTO_B: {
if (resultCode == RESULT_OK) {
handleBigCameraPhoto();
}
if (resultCode == RESULT_CANCELED) {
Intent intent = new Intent(PhotoIntentActivity.this, Home.class);
intent.setFlags(Intent.FLAG_ACTIVITY_REORDER_TO_FRONT);
finish();
startActivity(intent);
}
break;
} // ACTION_TAKE_PHOTO_B
} // switch
}
// Some lifecycle callbacks so that the image can survive orientation change
@Override
protected void onSaveInstanceState(Bundle outState) {
outState.putParcelable(BITMAP_STORAGE_KEY, mImageBitmap);
outState.putBoolean(IMAGEVIEW_VISIBILITY_STORAGE_KEY, (mImageBitmap != null) );
super.onSaveInstanceState(outState);
}
@Override
protected void onRestoreInstanceState(Bundle savedInstanceState) {
super.onRestoreInstanceState(savedInstanceState);
mImageBitmap = savedInstanceState.getParcelable(BITMAP_STORAGE_KEY);
mImageView.setImageBitmap(mImageBitmap);
mImageView.setVisibility(
savedInstanceState.getBoolean(IMAGEVIEW_VISIBILITY_STORAGE_KEY) ?
ImageView.VISIBLE : ImageView.INVISIBLE
);
}
public static boolean isIntentAvailable(Context context, String action) {
final PackageManager packageManager = context.getPackageManager();
final Intent intent = new Intent(action);
List<ResolveInfo> list =
packageManager.queryIntentActivities(intent,
PackageManager.MATCH_DEFAULT_ONLY);
return list.size() > 0;
}
public void upload() {
try {
boolean check = Utility.isNetworkAvailable(PhotoIntentActivity.this);
// boolean check1 =isOnline();
if (check) {
String newtime = Utility.getdate();
String accesskey = Utility.MD5_Hash(Constants.email + newtime
+ "moko");
Constants.ACCESS_KEY = accesskey;
Constants.proc_date = newtime;
imageUploadhandler.postDelayed(runImageUpload, 500);
dialog = ProgressDialog.show(PhotoIntentActivity.this, "",
"しばらくお待ちください", true);
dialog.setCancelable(true);
} else {
databaseHandler.postDelayed(runDatabaseImageSave, 500);
dialog = ProgressDialog.show(PhotoIntentActivity.this, "",
"しばらくお待ちください", true);
dialog.setCancelable(true);
}
} catch (Exception e) {
dialog.cancel();
Toast.makeText(this, e + "", Toast.LENGTH_LONG).show();
}
}
private final Runnable runImageUpload = new Runnable() {
public void run() {
Log.i("contentUri1", imageUri1+"");
ResponseFromServer response = Utility.uploadFileAsImage(afile,
PhotoIntentActivity.this);
if (dialog.isShowing()) {
dialog.dismiss();
}
if (response != null) {
if (response.getStatus().equalsIgnoreCase("OK")) {
Toast.makeText(getApplicationContext(), "画像を保存しました。",
Toast.LENGTH_LONG).show();
finish();
}
} else {
new AlertDialog.Builder(PhotoIntentActivity.this)
.setTitle("エラー")
.setMessage("ファイル送信に失敗しました。")
.setPositiveButton("OK",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog,
int which) {
// TODO Auto-generated method stub
}
}).show();
return;
}
}
};
private final Runnable runDatabaseImageSave = new Runnable() {
public void run() {
try {
InputStream iStream = getContentResolver().openInputStream(
imageUri1);
byte[] inputData = iStream.toString().getBytes();
db.open();
String stringUri = imageUri1.toString();
String userMail = Constants.email;
Log.e("Email: ", userMail + "");
boolean feedback = db.InsertImage(inputData, stringUri,
userMail, 1);
db.close();
if (dialog.isShowing()) {
dialog.dismiss();
}
if (feedback) {
Toast.makeText(PhotoIntentActivity.this, "画像を保存しました。",
Toast.LENGTH_LONG).show();
finish();
} else {
new AlertDialog.Builder(PhotoIntentActivity.this)
.setTitle("エラー")
.setMessage("ファイル送信に失敗しました。")
.setPositiveButton("OK",
new DialogInterface.OnClickListener() {
public void onClick(
DialogInterface dialog,
int which) {
// TODO Auto-generated method stub
}
}).show();
return;
}
} catch (Exception e) {
Log.e("Error to upload Image to database: ", e + "");
}
}
};
}