Android getPath以查找文件的确切路径。这是处理您定义的问题的最简单方法。如果您需要进一步的帮助,请尝试告诉我:)
一个简单的修复方法就是在文件路径的开头添加“file://”。 例如:Android getPath以查找文件的确切路径。这是处理您定义的问题的最简单方法。如果您需要进一步的帮助,请尝试告诉我:),android,image,imageview,uri,picasso,Android,Image,Imageview,Uri,Picasso,一个简单的修复方法就是在文件路径的开头添加“file://”。 例如: 将{uri:“/path/to/file”}更改为{uri:”file:///path/to/file“}适用于任何平台。我想这是安卓6.0的权限问题,请检查您是否在运行时处理棉花糖版本的。不,我已经检查过了,甚至在一些设备上的低安卓版本上也发生了这种情况。你使用的是哪一版本的毕加索?安卓棉花糖需要运行时权限,但在这种情况下,我不是在设备内部存储器上读写。我认为您不需要获得从SharedReferences文件读写的权限,但
将
{uri:“/path/to/file”}
更改为{uri:”file:///path/to/file“}
适用于任何平台。我想这是安卓6.0的权限问题,请检查您是否在运行时处理棉花糖版本的
。不,我已经检查过了,甚至在一些设备上的低安卓版本上也发生了这种情况。你使用的是哪一版本的毕加索?安卓棉花糖需要运行时权限,但在这种情况下,我不是在设备内部存储器上读写。我认为您不需要获得从SharedReferences文件读写的权限,但您没有保存文件,Uri只包含文件的路径,所以你需要读取路径内容的权限实际上我正在转换Uri tio字符串,然后存储在SharedReference中,所以它将仅作为字符串或路径?是的,没错,事实上我不确定你是否可以在SharedReference上存储文件,SharedReferences仅存储原始数据类型我也插入了运行时权限,但图像仍然没有出现这不是毕加索的问题我想,因为当我关闭应用程序,然后打开它时,毕加索能够获取uri并在imageview上显示,它不能仅在活动被破坏时显示,其中包含我的问题中提到的路径的imageview好的,然后签出我下面的答案,保存实例状态。你能给我显示你得到的所有三个设备的uri吗?你能检查一件事吗?在SharedReference中存储时,在存储后关闭应用程序,并确保活动被android终止,即按下hone按钮并终止此应用程序。然后你打开这个应用程序,检查图像是否存在是的,我按home按钮,然后从最近的应用程序列表中删除应用程序。。。。这就是我的工作我测试了它…我已经投票给了你的答案,我仍然需要测试一加一和其他我已经检查了它,它现在工作了,我认为这行是intent.addFlags(intent.FLAG\u GRANT\u PERSISTABLE\u URI\u PERMISSION)完成了这个技巧这节省了我的时间。谢谢你,尼奥
Intent intent=new Intent();intent.setType("image/*");
intent.setAction(Intent.ACTION_GET_CONTENT);
startActivityForResult(Intent.createChooser(intent, "Select Picture"), Constants.SELECT_PICTURE);
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if(requestCode==Constants.SELECT_PICTURE && resultCode==RESULT_OK && null!=data) {
Uri uri=data.getData();
Picasso.with(UsersProfileActivity.this)
.load(uri)
.centerCrop()
.resize(200,200)
.into(img_photo);
// This profile image i am storing into a sharedpreference
profile_image=uri.toString();
}
Mi(Lollipop)- Uri=content://media/external/images/media/12415
samsung(KitKat)-Uri=content://media/external/images/media/786
Motorola(Marshmallow)- Uri=content://com.android.providers.media.documents/document/image%3A30731
One Plus One (Marshmallow)- Uri=content://com.android.providers.media.documents/document/image%3A475
public String getRealPathFromURI(Context context, Uri contentUri) {
Cursor cursor = null;
try {
String[] proj = { MediaStore.Images.Media.DATA };
cursor = context.getContentResolver().query(contentUri, proj, null, null, null);
int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
cursor.moveToFirst();
return cursor.getString(column_index);
} finally {
if (cursor != null) {
cursor.close();
}
}
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if(requestCode==Constants.SELECT_PICTURE && resultCode==RESULT_OK && null!=data)
{
Uri uri=data.getData();
String imagePath = getRealPathFromURI(getApplicationContext(), uril);
Picasso.with(UsersProfileActivity.this).load(imagePath).centerCrop().resize(200,200).into(img_photo);
profile_image = imagePath;
}
public void onCreate(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
if (savedInstanceState != null){
loadImage((Uri)saveInstanceState.getParcelable(SOME_KEY))
}
}
public void onSaveInstanceState(Bundle bundle){
bundle.putParcelable(SOME_KEY, uri)
}
Intent intent = new Intent();
intent.setType("image/*");
String action = Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT ? Intent.ACTION_OPEN_DOCUMENT : Intent.ACTION_GET_CONTENT;
intent.setAction(action);
startActivityForResult(Intent.createChooser(intent, "Select Picture"), Constants.SELECT_PICTURE);
ParcelFileDescriptor parcelFileDescriptor =
context.getContentResolver().openFileDescriptor(selectedFileUri, "r");
FileDescriptor fileDescriptor = parcelFileDescriptor.getFileDescriptor();
Bitmap image = BitmapFactory.decodeFileDescriptor(fileDescriptor);
parcelFileDescriptor.close();
String path = getPath(getApplicationContext(), uri);
Bitmap bitmap = BitmapFactory.decodeFile(path);
imageView.setImageBitmap(bitmap);
public static String getPath(final Context context, final Uri uri) {
// DocumentProvider
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT && DocumentsContract.isDocumentUri(context, uri)) {
if (isExternalStorageDocument(uri)) {// ExternalStorageProvider
final String docId = DocumentsContract.getDocumentId(uri);
final String[] split = docId.split(":");
final String type = split[0];
String storageDefinition;
if ("primary".equalsIgnoreCase(type)) {
return Environment.getExternalStorageDirectory() + "/" + split[1];
} else {
if (Environment.isExternalStorageRemovable()) {
storageDefinition = "EXTERNAL_STORAGE";
} else {
storageDefinition = "SECONDARY_STORAGE";
}
return System.getenv(storageDefinition) + "/" + split[1];
}
} else if (isDownloadsDocument(uri)) {// DownloadsProvider
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);
} else if (isMediaDocument(uri)) {// MediaProvider
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);
}
} else if ("content".equalsIgnoreCase(uri.getScheme())) {// MediaStore (and general)
// Return the remote address
if (isGooglePhotosUri(uri))
return uri.getLastPathSegment();
return getDataColumn(context, uri, null, null);
} else if ("file".equalsIgnoreCase(uri.getScheme())) {// File
return uri.getPath();
}
return null;
}
Picasso.with(UsersProfileActivity.this)
.load(Uri.fromFile(file))
.centerCrop()
.resize(200,200)
.into(img_photo);
profile_image=uri.toString();
//add the next few lines for debugging purposes only; remove them later
Uri uri2 = Uri.parse(profile_image)
if (!uri.equals(uri2)
//add a breakpoint on the next line
Log.d("Uri mismatch), "Ouch");
//remove the lines after you are done with debugging
Uri uri = Uri.parse(profile_image) //profile_image is retrieved from sharedpreferences
profilePicture = (ImageView)findViewById(R.id.imgProfilePicture);
sharedPreferences = getSharedPreferences(getString(R.string.app_name)+"_ProfileDetails",MODE_PRIVATE);
// get uri from shared preference
String profilePicUri = sharedPreferences.getString("profilePicUrl","");
// if uri not found
if (profilePicUri.equalsIgnoreCase("")){
// code for open gallery to select image
Intent intent;
if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT){
intent = new Intent(Intent.ACTION_OPEN_DOCUMENT);
intent.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true);
intent.addFlags(Intent.FLAG_GRANT_PERSISTABLE_URI_PERMISSION);
}else{
intent = new Intent(Intent.ACTION_GET_CONTENT);
}
intent.putExtra(Intent.EXTRA_LOCAL_ONLY, true);
intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
intent.setType("image/*");
startActivityForResult(Intent.createChooser(intent, "Select Picture"), SELECT_PICTURE_CONSTANT);
}else{
try{
final int takeFlags = (Intent.FLAG_GRANT_READ_URI_PERMISSION
| Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
// Check for the freshest data.
getContentResolver().takePersistableUriPermission(Uri.parse(profilePicUri), takeFlags);
// convert uri to bitmap
Bitmap bitmap = MediaStore.Images.Media.getBitmap(getContentResolver(), Uri.parse(profilePicUri));
// set bitmap to imageview
profilePicture.setImageBitmap(bitmap);
}
catch (Exception e){
//handle exception
e.printStackTrace();
}
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == SELECT_PICTURE_CONSTANT && resultCode == RESULT_OK && null != data) {
Uri uri = data.getData();
// This profile image i am storing into a sharedpreference
SharedPreferences.Editor editor = sharedPreferences.edit();
// save uri to shared preference
editor.putString("profilePicUrl",uri.toString());
editor.commit();
profilePicture.setImageURI(uri);
}
}
<uses-permission android:name="android.permission.MANAGE_DOCUMENTS"/>
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
package fandooo.com.fandooo.util;
import android.content.ContentUris;
import android.content.Context;
import android.database.Cursor;
import android.net.Uri;
import android.os.Build;
import android.os.Environment;
import android.provider.DocumentsContract;
import android.provider.MediaStore;
public class ImageFilePath {
/**
* Method for return file path of Gallery image
*
* @param context
* @param uri
* @return path of the selected image file from gallery
*/
public static String getPath(final Context context, final Uri uri) {
// check here to KITKAT or new version
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];
}
}
// 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());
}
}