Permission Denial: reading com.android.providers.media.MediaProvider uri content://media/external/i
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最近在做调用系统相册，选择多照片问题，遇到了一个错，发现用原有的设置权限方式是不行的，总结一下解决办法，报错如下：
- ComponentInfo{com.example.chenkui.testpic/com.example.chenkui.testpic.TestPicActivity}:
java.lang.SecurityException: Permission Denial: reading
com.android.providers.media.MediaProvider uri
content://media/external/images/thumbnails from pid=13557, uid=10627
requires android.permission.READ_EXTERNAL_STORAGE, or
grantUriPermission()
05-26 00:33:58.200 13557-13557/com.example.chenkui.testpic E/AndroidRuntime: FATAL EXCEPTION: main Process: com.example.chenkui.testpic, PID: 13557 java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.chenkui.testpic/com.example.chenkui.testpic.TestPicActivity}: java.lang.SecurityException: Permission Denial: reading com.android.providers.media.MediaProvider uri content://media/external/images/thumbnails from pid=13557, uid=10627 requires android.permission.READ_EXTERNAL_STORAGE, or grantUriPermission() at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2793) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2864) at android.app.ActivityThread.-wrap12(ActivityThread.java) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1567) at android.os.Handler.dispatchMessage(Handler.java:105) at android.os.Looper.loop(Looper.java:156) at android.app.ActivityThread.main(ActivityThread.java:6524) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:941) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:831) Caused by: java.lang.SecurityException: Permission Denial: reading com.android.providers.media.MediaProvider uri content://media/external/images/thumbnails from pid=13557, uid=10627 requires android.permission.READ_EXTERNAL_STORAGE, or grantUriPermission() at android.os.Parcel.readException(Parcel.java:1686) at android.database.DatabaseUtils.readExceptionFromParcel(DatabaseUtils.java:183) at android.database.DatabaseUtils.readExceptionFromParcel(DatabaseUtils.java:135) at android.content.ContentProviderProxy.query(ContentProviderNative.java:421) at android.content.ContentResolver.query(ContentResolver.java:541) at android.content.ContentResolver.query(ContentResolver.java:476) at com.example.chenkui.testpic.AlbumHelper.getThumbnail(AlbumHelper.java:65) at com.example.chenkui.testpic.AlbumHelper.buildImagesBucketList(AlbumHelper.java:174) at com.example.chenkui.testpic.AlbumHelper.getImagesBucketList(AlbumHelper.java:256) at com.example.chenkui.testpic.TestPicActivity.initData(TestPicActivity.java:88) at com.example.chenkui.testpic.TestPicActivity.onCreate(TestPicActivity.java:72) at android.app.Activity.performCreate(Activity.java:6910) at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1123) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2746) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2864) at android.app.ActivityThread.-wrap12(ActivityThread.java) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1567) at android.os.Handler.dispatchMessage(Handler.java:105) 解决这个问题的办法是：
AndroidManifest.xml
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" /> <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />在onCreate()里面添加：
private static final int REQUEST_PERMISSION = 0; @Override protected void onCreate(Bundle savedInstanceState) { // TODO Auto-generated method stub super.onCreate(savedInstanceState); setContentView(R.layout.activity_image_bucket); if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) { int hasWritePermission = checkSelfPermission(Manifest.permission.WRITE_EXTERNAL_STORAGE); int hasReadPermission = checkSelfPermission(Manifest.permission.READ_EXTERNAL_STORAGE); List<String> permissions = new ArrayList<String>(); if (hasWritePermission != PackageManager.PERMISSION_GRANTED) { permissions.add(Manifest.permission.WRITE_EXTERNAL_STORAGE); } else {// preferencesUtility.setString("storage", "true"); } if (hasReadPermission != PackageManager.PERMISSION_GRANTED) { permissions.add(Manifest.permission.READ_EXTERNAL_STORAGE); } else {// preferencesUtility.setString("storage", "true"); } if (!permissions.isEmpty()) {// requestPermissions(permissions.toArray(new String[permissions.size()]), REQUEST_CODE_SOME_FEATURES_PERMISSIONS); ActivityCompat.requestPermissions(this, new String[] {Manifest.permission.WRITE_EXTERNAL_STORAGE, Manifest.permission.READ_PHONE_STATE}, REQUEST_PERMISSION); } } @Override public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) { switch (requestCode) { case REQUEST_PERMISSION: { for (int i = 0; i < permissions.length; i++) { if (grantResults[i] == PackageManager.PERMISSION_GRANTED) { System.out.println("Permissions --> " + "Permission Granted: " + permissions[i]); } else if (grantResults[i] == PackageManager.PERMISSION_DENIED) { System.out.println("Permissions --> " + "Permission Denied: " + permissions[i]); } } } break; default: { super.onRequestPermissionsResult(requestCode, permissions, grantResults); } } }阅读全文
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