我正在尝试将图像设置为用户从其图库中选择的图像视图。但是，除非我从相机文件夹中选择图像，否则所有图像似乎都会加载到我的图像视图中。它不会将图像放入我的imageview中。请参阅下图http://i.stack.imgur.com/h6QGG.jpg
征集意见
Intent galleryIntent = new Intent(Intent.ACTION_PICK,
MediaStore.Images.Media.INTERNAL_CONTENT_URI);
// Start the Intent
Log.d(TAG,"STARTING ACTIVITY FOR RESULT");
startActivityForResult(galleryIntent, RESULT_LOAD_IMAGE);
OnActivityResult
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data){
Log.d(TAG,"IN ON ACTIVIY RESULT");
super.onActivityResult(requestCode, resultCode, data);
try {
Log.d(TAG, "IN INTERESTS ON ACTIVITY RESULT");
if (requestCode == RESULT_LOAD_IMAGE && resultCode == Activity.RESULT_OK && null != data) {
Uri selectedImage = data.getData();
String[] filePathColumn = {MediaStore.Images.Media.DATA};
Cursor cursor = getContext().getContentResolver().query(selectedImage,
filePathColumn, null, null, null);
cursor.moveToFirst();
int columnIndex = cursor.getColumnIndex(filePathColumn[0]);
String picturePath = cursor.getString(columnIndex);
BitmapFactory.Options bmOptions = new BitmapFactory.Options();
File file = new File(picturePath);
bmOptions.inJustDecodeBounds = true;
Bitmap original = BitmapFactory.decodeFile(picturePath);
file.createNewFile();
FileOutputStream ostream = new FileOutputStream(file);
Bitmap newBm = Bitmap.createScaledBitmap(original, 900, 1280, true);
newBm.compress(Bitmap.CompressFormat.JPEG, 90, ostream);
ostream.close();
BitmapFactory.decodeFile(picturePath, bmOptions);
iconpic.setImageBitmap(newBm);
Toast.makeText(getContext(), picturePath, Toast.LENGTH_SHORT)
.show();
cursor.close();
SharedPreferences appPrefs = getContext().getSharedPreferences("com.example.gcmclient_preferences", Context.MODE_PRIVATE);
SharedPreferences.Editor prefsEditor = appPrefs.edit();
prefsEditor.putString("iconPath", picturePath);
prefsEditor.commit();
// String picturePath contains the path of selected Image
}
}
catch (Exception e){
e.printStackTrace();
}
}
答案 0 :(得分：1)
希望这会奏效。
Uri imageUri;
File file;
public int CAMERA_INTENT_CALLED = 100;
public int GALLERY_INTENT_CALLED = 101;
public int GALLERY_KITKAT_INTENT_CALLED = 102;
if (Build.VERSION.SDK_INT < 19) {
Intent intent = new Intent();
intent.setType("image/jpeg");
intent.setAction(Intent.ACTION_GET_CONTENT);
startActivityForResult(Intent.createChooser(intent,
"Select image to promote"),
GALLERY_INTENT_CALLED);
} else {
Intent intent = new Intent(Intent.ACTION_OPEN_DOCUMENT);
intent.addCategory(Intent.CATEGORY_OPENABLE);
intent.setType("image/jpeg");
startActivityForResult(intent,
GALLERY_KITKAT_INTENT_CALLED);
}
onActivityResult
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (resultCode == Activity.RESULT_OK) {
Uri originalUri = null;
if (requestCode == GALLERY_INTENT_CALLED) {
if (data.getData() != null) {
originalUri = data.getData();
String path = getRealPathFromURI(originalUri);
setImageBitmap(path);
originalUri = null;
}
} else if (requestCode == GALLERY_KITKAT_INTENT_CALLED) {
if (data.getData() != null) {
originalUri = data.getData();
String path = getPath(this, originalUri);
setImageBitmap(path);
originalUri = null;
}
} else if (requestCode == CAMERA_INTENT_CALLED) {
Uri selectedImage = imageUri;
try {
if (selectedImage != null) {
getContentResolver().notifyChange(selectedImage, null);
String path = getRealPathFromURI(selectedImage);
Log.e("Imagepath Camera", path);
setImageBitmap(path);
imageUri = null;
}
} catch (Exception e) {
Log.e("Camera", e.toString());
}
}
}
API＆lt; 19及以上选择了GalleryImage
private String getRealPathFromURI(Uri contentURI) {
Cursor cursor = getContentResolver().query(contentURI, null, null,
null, null);
if (cursor == null) { // Source is Dropbox or other similar local file
// path
return contentURI.getPath();
} else {
cursor.moveToFirst();
int idx = cursor
.getColumnIndex(MediaStore.Images.ImageColumns.DATA);
return cursor.getString(idx);
}
}
选择了KITKAT及以上的GalleryImage
public static String getPath(final Context context, final Uri uri) {
final boolean isKitKat = Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT;
// DocumentProvider
if (isKitKat && DocumentsContract.isDocumentUri(context, uri)) {
// ExternalStorageProvider
if (isExternalStorageDocument(uri)) {
final String docId = DocumentsContract.getDocumentId(uri);
final String[] split = docId.split(":");
final String type = split[0];
if ("primary".equalsIgnoreCase(type)) {
return Environment.getExternalStorageDirectory() + "/"
+ split[1];
}
// TODO handle non-primary volumes
}
// DownloadsProvider
else if (isDownloadsDocument(uri)) {
final String id = DocumentsContract.getDocumentId(uri);
final Uri contentUri = ContentUris.withAppendedId(
Uri.parse("content://downloads/public_downloads"),
Long.valueOf(id));
return getDataColumn(context, contentUri, null, null);
}
// MediaProvider
else if (isMediaDocument(uri)) {
final String docId = DocumentsContract.getDocumentId(uri);
final String[] split = docId.split(":");
final String type = split[0];
Uri contentUri = null;
if ("image".equals(type)) {
contentUri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;
} else if ("video".equals(type)) {
contentUri = MediaStore.Video.Media.EXTERNAL_CONTENT_URI;
} else if ("audio".equals(type)) {
contentUri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;
}
final String selection = "_id=?";
final String[] selectionArgs = new String[] { split[1] };
return getDataColumn(context, contentUri, selection,
selectionArgs);
}
}
// MediaStore (and general)
else if ("content".equalsIgnoreCase(uri.getScheme())) {
// Return the remote address
if (isGooglePhotosUri(uri))
return uri.getLastPathSegment();
return getDataColumn(context, uri, null, null);
}
// File
else if ("file".equalsIgnoreCase(uri.getScheme())) {
return uri.getPath();
}
return null;
}
public static boolean isExternalStorageDocument(Uri uri) {
return "com.android.externalstorage.documents".equals(uri
.getAuthority());
}
/**
* @param uri
* The Uri to check.
* @return Whether the Uri authority is DownloadsProvider.
*/
public static boolean isGooglePhotosUri(Uri uri) {
return "com.google.android.apps.photos.content".equals(uri
.getAuthority());
}
public static boolean isDownloadsDocument(Uri uri) {
return "com.android.providers.downloads.documents".equals(uri
.getAuthority());
}
/**
* @param uri
* The Uri to check.
* @return Whether the Uri authority is MediaProvider.
*/
public static boolean isMediaDocument(Uri uri) {
return "com.android.providers.media.documents".equals(uri
.getAuthority());
}