我是 android 开发的新手。 在我的应用程序中，我有一个显示在 ListView 中的联系人类。对于我的联系人，我有一张从图库中获得的图像，图像 uri 存储在数据库中。 在我最后Post
我的问题由此 post 得到解决
虽然我的应用程序在 genymotion 和 api 19 中正常工作，但突然出现此错误:
FATAL EXCEPTION: main
Process: com.example.sayres.myapplication7, PID: 3865
java.lang.SecurityException: Permission Denial: opening provider com.android.providers.media.MediaDocumentsProvider from ProcessRecord{5296e638 3865:com.example.sayres.myapplication7/u0a98} (pid=3865, uid=10098) requires android.permission.MANAGE_DOCUMENTS or android.permission.MANAGE_DOCUMENTS
at android.os.Parcel.readException(Parcel.java:1465)
at android.os.Parcel.readException(Parcel.java:1419)
at android.app.ActivityManagerProxy.getContentProvider(ActivityManagerNative.java:2848)
at android.app.ActivityThread.acquireProvider(ActivityThread.java:4399)
at android.app.ContextImpl$ApplicationContentResolver.acquireUnstableProvider(ContextImpl.java:2208)
at android.content.ContentResolver.acquireUnstableProvider(ContentResolver.java:1425)
at android.content.ContentResolver.openTypedAssetFileDescriptor(ContentResolver.java:1047)
at android.content.ContentResolver.openAssetFileDescriptor(ContentResolver.java:904)
at android.content.ContentResolver.openInputStream(ContentResolver.java:629)
at android.provider.MediaStore$Images$Media.getBitmap(MediaStore.java:803)
at com.example.sayres.myapplication7.mvp.view.adapter.ContactAdapter.getView(ContactAdapter.java:54)
at android.widget.AbsListView.obtainView(AbsListView.java:2255)
at android.widget.ListView.makeAndAddView(ListView.java:1790)
at android.widget.ListView.fillDown(ListView.java:691)
at android.widget.ListView.fillFromTop(ListView.java:752)
at android.widget.ListView.layoutChildren(ListView.java:1616)
at android.widget.AbsListView.onLayout(AbsListView.java:2087)
at android.view.View.layout(View.java:14817)
at android.view.ViewGroup.layout(ViewGroup.java:4631)
at android.support.design.widget.HeaderScrollingViewBehavior.layoutChild(HeaderScrollingViewBehavior.java:122)
at android.support.design.widget.ViewOffsetBehavior.onLayoutChild(ViewOffsetBehavior.java:42)
at android.support.design.widget.AppBarLayout$ScrollingViewBehavior.onLayoutChild(AppBarLayout.java:1170)
at android.support.design.widget.CoordinatorLayout.onLayout(CoordinatorLayout.java:814)
at android.view.View.layout(View.java:14817)
at android.view.ViewGroup.layout(ViewGroup.java:4631)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java:453)
at android.widget.FrameLayout.onLayout(FrameLayout.java:388)
at android.view.View.layout(View.java:14817)
at android.view.ViewGroup.layout(ViewGroup.java:4631)
at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1671)
at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1525)
at android.widget.LinearLayout.onLayout(LinearLayout.java:1434)
at android.view.View.layout(View.java:14817)
at android.view.ViewGroup.layout(ViewGroup.java:4631)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java:453)
at android.widget.FrameLayout.onLayout(FrameLayout.java:388)
at android.view.View.layout(View.java:14817)
at android.view.ViewGroup.layout(ViewGroup.java:4631)
at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1671)
at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1525)
at android.widget.LinearLayout.onLayout(LinearLayout.java:1434)
at android.view.View.layout(View.java:14817)
at android.view.ViewGroup.layout(ViewGroup.java:4631)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java:453)
at android.widget.FrameLayout.onLayout(FrameLayout.java:388)
at android.view.View.layout(View.java:14817)
at android.view.ViewGroup.layout(ViewGroup.java:4631)
at android.view.ViewRootImpl.performLayout(ViewRootImpl.java:1983)
at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1740)
at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:996)
at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:5600)
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:761)
at android.view.Choreographer.doCallbacks(Choreographer.java:574)
at android.view.Choreographer.doFrame(Choreographer.java:544)
at android.view.Choreograph
根据我上一篇文章，我添加了一些代码，我的 fragment 代码是:
package com.example.sayres.myapplication7.mvp.view.profile;
import android.annotation.SuppressLint;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.graphics.Bitmap;
import android.net.Uri;
import android.os.Build;
import android.os.Bundle;
import android.provider.MediaStore;
import android.support.v4.app.Fragment;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.EditText;
import com.example.sayres.myapplication7.App;
import com.example.sayres.myapplication7.R;
import com.example.sayres.myapplication7.entity.Contact;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import de.hdodenhof.circleimageview.CircleImageView;
public class EditProfileFragment extends Fragment {
private static final int GALLERY_KITKAT_INTENT_CALLED = 1;
private EditFragmentCallBack editFragmentCallBack;
private EditText fragmentEditEditTextName;
private EditText fragmentEditEditTextFamily;
private EditText fragmentEditEditTextPhoneNumber;
private static final int SELECT_FILE = 0;
public static final String TAG = "====>";
private AlertDialog.Builder builder;
private Uri selectedImageUri;
private CircleImageView fragmentEditPicture;
private Bitmap bm;
private Button fragmentEditBtUpdate;
private int id;
private int rowUpdate;
private String name;
private String family;
private String phoneNumber;
private Contact contact;
public EditProfileFragment() {
// Required empty public constructor
}
@Override
public void onAttach(Context context) {
super.onAttach(context);
Log.d(TAG, "onAttach: is running");
editFragmentCallBack = (EditFragmentCallBack) context;
Log.d(TAG, "onAttach: editFragmentCallBack was initialized");
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
Log.d(TAG, "onCreateView- EditFragment: is running");
View fragmentView = inflater.inflate(R.layout.fragment_edit_profile, container, false);
initFragment(fragmentView);
return fragmentView;
}
private void initFragment(View parent) {
/**
* referencing of fragment_edit_profile
*/
fragmentEditPicture = (CircleImageView) parent.findViewById(R.id.fragment_edit_picture);
fragmentEditEditTextName = (EditText) parent.findViewById(R.id.fragment_edit_editText_name);
fragmentEditEditTextFamily = (EditText) parent.findViewById(R.id.fragment_edit_editText_family);
fragmentEditEditTextPhoneNumber = (EditText) parent.findViewById(R.id.fragment_edit_editText_phone);
fragmentEditBtUpdate = (Button) parent.findViewById(R.id.fragment_edit_btn_save);
fragmentEditBtUpdate.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Log.d(TAG, "onClick: yess");
id = contact.get_id();
name = fragmentEditEditTextName.getText().toString();
family = fragmentEditEditTextFamily.getText().toString();
phoneNumber = fragmentEditEditTextPhoneNumber.getText().toString();
Log.d(TAG, "onClick: name " + name);
Log.d(TAG, "onClick: family " + family);
contact = new Contact(id, name, family, phoneNumber, selectedImageUri.toString());
rowUpdate = App.getInstanceImplementation().updateContact(contact);
Log.i("==>", "btnUpdateContact: " + rowUpdate);
}
});
/**
* get contact by invoke from CallBack on ProfileActivity
*/
contact = editFragmentCallBack.getContact();
fragmentEditEditTextName.setText(contact.getName());
fragmentEditEditTextFamily.setText(contact.getFamily());
fragmentEditEditTextPhoneNumber.setText(contact.getPhonNumber());
}
public void selectImage() {
final CharSequence[] items = {"Choose from Library", "Cancel"};
builder = new AlertDialog.Builder(getActivity());
builder.setTitle("Add Photo ");
builder.setItems(items, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int item) {
if (items[item].equals("Choose from Library")) {
if (Build.VERSION.SDK_INT <19) {
Log.d(TAG, "Build.VERSION.SDK_INT <19");
Intent intent = new Intent();
intent.setType("image/*");
intent.setAction(Intent.ACTION_GET_CONTENT);
startActivityForResult(Intent.createChooser(intent, "Select File"), SELECT_FILE);
}else {
Intent intent = new Intent(Intent.ACTION_OPEN_DOCUMENT);
// Intent intent = new Intent(Intent.ACTION_PICK, android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
intent.addCategory(Intent.CATEGORY_OPENABLE);
intent.setType("image/*");
startActivityForResult(intent, GALLERY_KITKAT_INTENT_CALLED);
}
} else if (items[item].equals("Cancel")) {
}
}
});
builder.show();
}
@SuppressLint("NewApi")
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (resultCode == Activity.RESULT_OK) {
if (requestCode == SELECT_FILE) {
onSelectFromGalleryResult(data);
} else if (requestCode == GALLERY_KITKAT_INTENT_CALLED) {
selectedImageUri = data.getData();
final int takeFlags = data.getFlags()
& (Intent.FLAG_GRANT_READ_URI_PERMISSION
| Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
getActivity().getContentResolver().takePersistableUriPermission(selectedImageUri, takeFlags);
bm = null;
try {
selectedImageUri = data.getData();
bm = MediaStore.Images.Media.getBitmap(getActivity().getContentResolver(), data.getData());
} catch (IOException e) {
e.printStackTrace();
}
Log.d(TAG, "selectedImageUri " + selectedImageUri);
fragmentEditPicture.setImageBitmap(bm);
}
}
}
public void onSelectFromGalleryResult(Intent data) {
if (data != null) {
bm = null;
try {
selectedImageUri = data.getData();
bm = MediaStore.Images.Media.getBitmap(getActivity().getContentResolver(), data.getData());
} catch (IOException e) {
e.printStackTrace();
}
Log.d(TAG, "selectedImageUri " + selectedImageUri);
fragmentEditPicture.setImageBitmap(bm);
}
}
public interface EditFragmentCallBack {
Contact getContact();
void finishProfile();
}
}
我将 uses-permission android:name="android.permission.MANAGE_DOCUMENTS" 添加到 list 文件，但我仍然遇到错误。我有一个显示联系信息的 ListView 。
我的联系人适配器
package com.example.sayres.myapplication7.mvp.view.adapter;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.net.Uri;
import android.provider.MediaStore;
import android.util.Log;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.ImageView;
import android.widget.TextView;
import com.example.sayres.myapplication7.R;
import com.example.sayres.myapplication7.entity.Contact;
import java.io.IOException;
import java.util.List;
public class ContactAdapter extends ArrayAdapter<Contact> {
private Bitmap bm;
private Context context;
private List<Contact> contacts;
public ContactAdapter(Context context, List<Contact> contacts) {
super(context, 0, contacts);
this.context = context;
this.contacts = contacts;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
View rootView = View.inflate(getContext(), R.layout.item_contact_list, null);
/**
* get reference from item_contact_list Layout
*/
ImageView imageViewAvatar = (ImageView) rootView.findViewById(R.id.imageView_avatar);
TextView textViewName = (TextView) rootView.findViewById(R.id.textView_name);
TextView textViewFamily = (TextView) rootView.findViewById(R.id.textView_family);
Contact contact = contacts.get(position);
if (contact.getImageSrc() =="") {
Log.d("===>", "getImageSrc() == null");
imageViewAvatar.setImageResource(R.mipmap.ic_launcher);
} else {
try {
bm = MediaStore.Images.Media.getBitmap(context.getContentResolver(), Uri.parse(contact.getImageSrc()));
imageViewAvatar.setImageBitmap(bm);
} catch (IOException e) {
e.printStackTrace();
}
}
Log.d("===>", "getView from DB: " + Uri.parse(contact.getImageSrc()));
Log.d("===>", "getView: " + contact.getImageSrc());
textViewName.setText(contact.getName());
textViewFamily.setText(contact.getFamily());
return rootView;
}
此错误针对此行:bm = MediaStore.Images.Media.getBitmap(context.getContentResolver(), Uri.parse(contact.getImageSrc()));
错误是什么？我该如何解决？
编辑:
这是我的联系人类:
package com.example.sayres.myapplication7.entity;
import java.io.Serializable;
public class Contact implements Serializable{
private int _id;
private String name, lastName, phoneNumber,imageSrc;
public Contact(int _id, String name, String family, String phoneNumber, String imageSrc) {
this._id = _id;
this.name = name;
this.lastName = family;
this.phoneNumber = phoneNumber;
this.imageSrc = imageSrc;
}
public int get_id() {
return _id;
}
public Contact set_id(int _id) {
this._id = _id;
return this;
}
public String getName() {
return name;
}
public Contact setName(String name) {
this.name = name;
return this;
}
public String getFamily() {
return lastName;
}
public Contact setFamily(String lastName) {
this.lastName = lastName;
return this;
}
public String getPhonNumber() {
return phoneNumber;
}
public Contact setPhonNumber(String phonNumber) {
this.phoneNumber = phonNumber;
return this;
}
public String getImageSrc() {
return imageSrc;
}
public Contact setImageSrc(String imageSrc) {
this.imageSrc = imageSrc;
return this;
}
}
最佳答案
当您从另一个应用程序获取 Uri 时，you have temporary rights to the content identified by that Uri .
如果您通过 ACTION_OPEN_DOCUMENT 获得了 Uri，您可以尝试使用 takePersistableUriPermission() 来获得对该内容的持久访问。您已经有了这方面的代码。
但是，如果您通过 ACTION_GET_CONTENT 获得了 Uri，则无法获得对内容的长期访问权。您必须立即使用内容(即，当您的进程仍在运行时)。您唯一真正的选择是将内容复制到您控制的某个文件中。您可以通过 ContentResolver 和 openInputStream() 获取由 Uri 标识的内容的 InputStream，并且您然后可以使用标准 Java I/O 从该流复制到某个文件。然后，继续使用该文件。
关于android - 安全异常 : Permission Denial API 19，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/42125303/