在新设备上取照片时 Android 应用程序崩溃 [英] Android application crash when picking photo on new devices
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问题描述
在我的应用程序中，用户从图库中选择图片并上传.在许多设备上，我的代码运行良好，但在新设备(例如:三星 S5、LG G2、三星 S4)上，应用程序在选择照片时崩溃.我将应用程序上传到 Google Play 商店并下载了这些设备，然后在应用程序崩溃时向 Google Play 发送报告.这是我选择图片和调整大小的代码.
In my application users select picture from gallery and upload. On many devices my code works perfect but on new devices (etc: samsung S5, LG G2, Samsung S4) application crashes when selecting photo. I uploaded application to Google Play Store and downloaded these devices then sended report to google play when app crashes. This is my select picture and resize code.
Intent intent = new Intent();
intent.setType("image/*");
intent.setAction(Intent.ACTION_GET_CONTENT);
startActivityForResult(Intent.createChooser(intent, "Complete action using"), 1);
public Bitmap getResizedBitmap(Bitmap bm, int newHeight, int newWidth) {
int width = bm.getWidth();
int height = bm.getHeight();
float scaleWidth = ((float) newWidth) / width;
float scaleHeight = ((float) newHeight) / height;
// create a matrix for the manipulation
Matrix matrix = new Matrix();
// resize the bit map
matrix.postScale(scaleHeight, scaleHeight);
// recreate the new Bitmap
Bitmap resizedBitmap = Bitmap.createBitmap(bm, 0, 0, width, height, matrix, false);
return resizedBitmap; }
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == 1 && resultCode == RESULT_OK) {
//Bitmap photo = (Bitmap) data.getData().getPath();
Uri selectedImageUri = data.getData();
imagepath = getPath(selectedImageUri);
Bitmap myBitmap = getResizedBitmap(BitmapFactory.decodeFile(imagepath),200,200);
try {
ExifInterface exif = new ExifInterface(imagepath);
orientation = exif.getAttributeInt(ExifInterface.TAG_ORIENTATION, 1);
Log.d("EXIF", "Exif: " + orientation);
resimyon=Integer.toString(orientation);
Matrix matrix = new Matrix();
if (orientation == 6) {
matrix.postRotate(90);
}
else if (orientation == 3) {
matrix.postRotate(180);
}
else if (orientation == 8) {
matrix.postRotate(270);
}
myBitmap = Bitmap.createBitmap(myBitmap, 0, 0, myBitmap.getWidth(), myBitmap.getHeight(), matrix, true); // rotating bitmap
}
catch (Exception e) {
}
imageview.setImageBitmap(myBitmap);
messageText.setText("Yüklenecek dosya:" +imagepath);
uploadButton.setEnabled(true);
}
这些是来自三星 S5 和 LG G2 的报告.
These are the reports came from Samsung S5 and LG G2.
三星 S5
java.lang.SecurityException
konum: android.os.Parcel.readException
java.lang.RuntimeException: Failure delivering result ResultInfo{who=null, request=1, result=-1, data=Intent { dat=content://media/external/images/media/1909 (has extras) }} to activity {com.turk.bakistik/com.turk.bakistik.Profilresimyukle}: java.lang.SecurityException: Permission Denial: reading com.android.providers.media.MediaProvider uri content://media/external/images/media/1909 from pid=29038, uid=10236 requires android.permission.READ_EXTERNAL_STORAGE, or grantUriPermission()
at android.app.ActivityThread.deliverResults(ActivityThread.java:3663)
at android.app.ActivityThread.handleSendResult(ActivityThread.java:3706)
at android.app.ActivityThread.access$1400(ActivityThread.java:173)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1351)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:136)
at android.app.ActivityThread.main(ActivityThread.java:5579)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1268)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1084)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.SecurityException: Permission Denial: reading com.android.providers.media.MediaProvider uri content://media/external/images/media/1909 from pid=29038, uid=10236 requires android.permission.READ_EXTERNAL_STORAGE, or grantUriPermission()
at android.os.Parcel.readException(Parcel.java:1465)
at android.database.DatabaseUtils.readExceptionFromParcel(DatabaseUtils.java:185)
at android.database.DatabaseUtils.readExceptionFromParcel(DatabaseUtils.java:137)
at android.content.ContentProviderProxy.query(ContentProviderNative.java:413)
at android.content.ContentResolver.query(ContentResolver.java:464)
at android.content.ContentResolver.query(ContentResolver.java:407)
at android.app.Activity.managedQuery(Activity.java:1898)
at com.turk.bakistik.Profilresimyukle.getPath(Profilresimyukle.java:209)
at com.turk.bakistik.Profilresimyukle.onActivityResult(Profilresimyukle.java:173)
at android.app.Activity.dispatchActivityResult(Activity.java:5643)
at android.app.ActivityThread.deliverResults(ActivityThread.java:3659)
... 11 more
LG G2
java.lang.NullPointerException
konum: com.turk.bakistik.Profilresimyukle.getResizedBitmap
java.lang.RuntimeException: Failure delivering result ResultInfo{who=null, request=1, result=-1, data=Intent { dat=content://com.android.providers.media.documents/document/image:41 flg=0x1 }} to activity {com.turk.bakistik/com.turk.bakistik.Profilresimyukle}: java.lang.NullPointerException
at android.app.ActivityThread.deliverResults(ActivityThread.java:3382)
at android.app.ActivityThread.handleSendResult(ActivityThread.java:3425)
at android.app.ActivityThread.access$1300(ActivityThread.java:139)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1248)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:136)
at android.app.ActivityThread.main(ActivityThread.java:5105)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:792)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:608)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.NullPointerException
at com.turk.bakistik.Profilresimyukle.getResizedBitmap(Profilresimyukle.java:123)
at com.turk.bakistik.Profilresimyukle.onActivityResult(Profilresimyukle.java:175)
at android.app.Activity.dispatchActivityResult(Activity.java:5467)
at android.app.ActivityThread.deliverResults(ActivityThread.java:3378)
... 11 more
我该如何解决这个问题?
How can I fix this problem?
推荐答案
由于android kitkat，无法正常获取图片本地路径.请检查设备的安卓版本，如果版本<kitkat，你可以用你的方式.如果版本是 kitkat 或更高版本，您可以尝试使用此代码获取文件路径，然后您可以转换为位图或任何您想要的.
Because since android kitkat, you can not get pick image local path as normal way. Please check device android version, if version < kitkat, you can use your way. If version is kitkat or later, you can try this code to get file path, then you can convert to bitmap or anything you want.
/**
* Get a file path from a Uri. This will get the the path for Storage Access
* Framework Documents, as well as the _data field for the MediaStore and
* other file-based ContentProviders.
*
* @param context The context.
* @param uri The Uri to query.
* @author paulburke
*/
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;
}
/**
* Get the value of the data column for this Uri. This is useful for
* MediaStore Uris, and other file-based ContentProviders.
*
* @param context The context.
* @param uri The Uri to query.
* @param selection (Optional) Filter used in the query.
* @param selectionArgs (Optional) Selection arguments used in the query.
* @return The value of the _data column, which is typically a file path.
*/
public static String getDataColumn(Context context, Uri uri, String selection,
String[] selectionArgs) {
Cursor cursor = null;
final String column = "_data";
final String[] projection = {
column
};
try {
cursor = context.getContentResolver().query(uri, projection, selection, selectionArgs,
null);
if (cursor != null && cursor.moveToFirst()) {
final int index = cursor.getColumnIndexOrThrow(column);
return cursor.getString(index);
}
} finally {
if (cursor != null)
cursor.close();
}
return null;
}
/**
* @param uri The Uri to check.
* @return Whether the Uri authority is ExternalStorageProvider.
*/
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 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());
}
/**
* @param uri The Uri to check.
* @return Whether the Uri authority is Google Photos.
*/
public static boolean isGooglePhotosUri(Uri uri) {
return "com.google.android.apps.photos.content".equals(uri.getAuthority());
}
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