[英]Can't load bitmap photo from Uri sent by intent to choose image from gallery
我無法使用意圖從圖庫中選擇圖像發送的uri加載位圖照片。 錯誤信息:
03-18 21:16:12.810 3693-3693/lcukerd.com.stufflist W/System.err: java.lang.SecurityException: Permission Denial: reading com.android.providers.media.MediaProvider uri content://media/external/images/media/78476 from pid=3693, uid=10246 requires android.permission.READ_EXTERNAL_STORAGE, or grantUriPermission()
03-18 21:16:12.810 3693-3693/lcukerd.com.stufflist W/System.err: at android.os.Parcel.readException(Parcel.java:1629)
03-18 21:16:12.810 3693-3693/lcukerd.com.stufflist W/System.err: at android.database.DatabaseUtils.readExceptionFromParcel(DatabaseUtils.java:183)
03-18 21:16:12.810 3693-3693/lcukerd.com.stufflist W/System.err: at android.database.DatabaseUtils.readExceptionWithFileNotFoundExceptionFromParcel(DatabaseUtils.java:146)
03-18 21:16:12.810 3693-3693/lcukerd.com.stufflist W/System.err: at android.content.ContentProviderProxy.openTypedAssetFile(ContentProviderNative.java:692)
03-18 21:16:12.810 3693-3693/lcukerd.com.stufflist W/System.err: at android.content.ContentResolver.openTypedAssetFileDescriptor(ContentResolver.java:1117)
03-18 21:16:12.810 3693-3693/lcukerd.com.stufflist W/System.err: at android.content.ContentResolver.openAssetFileDescriptor(ContentResolver.java:955)
03-18 21:16:12.810 3693-3693/lcukerd.com.stufflist W/System.err: at android.content.ContentResolver.openInputStream(ContentResolver.java:675)
03-18 21:16:12.810 3693-3693/lcukerd.com.stufflist W/System.err: at android.provider.MediaStore$Images$Media.getBitmap(MediaStore.java:876)
03-18 21:16:12.810 3693-3693/lcukerd.com.stufflist W/System.err: at lcukerd.com.stufflist.showList.onResume(showList.java:235)
03-18 21:16:12.810 3693-3693/lcukerd.com.stufflist W/System.err: at android.app.Instrumentation.callActivityOnResume(Instrumentation.java:1326)
03-18 21:16:12.810 3693-3693/lcukerd.com.stufflist W/System.err: at android.app.Activity.performResume(Activity.java:6338)
03-18 21:16:12.810 3693-3693/lcukerd.com.stufflist W/System.err: at android.app.ActivityThread.performResumeActivity(ActivityThread.java:3336)
03-18 21:16:12.810 3693-3693/lcukerd.com.stufflist W/System.err: at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:3384)
03-18 21:16:12.810 3693-3693/lcukerd.com.stufflist W/System.err: at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2574)
03-18 21:16:12.810 3693-3693/lcukerd.com.stufflist W/System.err: at android.app.ActivityThread.access$900(ActivityThread.java:150)
03-18 21:16:12.810 3693-3693/lcukerd.com.stufflist W/System.err: at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1399)
03-18 21:16:12.810 3693-3693/lcukerd.com.stufflist W/System.err: at android.os.Handler.dispatchMessage(Handler.java:102)
03-18 21:16:12.810 3693-3693/lcukerd.com.stufflist W/System.err: at android.os.Looper.loop(Looper.java:168)
03-18 21:16:12.810 3693-3693/lcukerd.com.stufflist W/System.err: at android.app.ActivityThread.main(ActivityThread.java:5885)
03-18 21:16:12.810 3693-3693/lcukerd.com.stufflist W/System.err: at java.lang.reflect.Method.invoke(Native Method)
03-18 21:16:12.810 3693-3693/lcukerd.com.stufflist W/System.err: at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:797)
03-18 21:16:12.810 3693-3693/lcukerd.com.stufflist W/System.err: at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:687)
意圖創建:
Intent intent = new Intent(
Intent.ACTION_PICK,
MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
startActivityForResult(intent,SELECT_FILE);
與該部分有關的ActivityResult代碼段:
else if (requestCode==SELECT_FILE)
{
if (resultCode== Activity.RESULT_OK)
{
photoURI = data.getData();
Log.d("Gallery call","opened with result " + photoURI.toString());
}
else {
Log.e("Gallery call", "Failed");
photoURI = null;
}
}
}
初始化發生錯誤的位圖:
if(photoURI!=null) {
try {
Bitmap photo = MediaStore.Images.Media.getBitmap(this.getContentResolver(), Uri.parse(photoURI));
Log.d("Size of image", "width:"+photo.getWidth()+" height:"+photo.getHeight());
BitmapDrawable ob = new BitmapDrawable(getResources(), photo); //Don't ask why , it is required for my code
Eimage.setBackground(ob);
} catch (Exception e) {
e.printStackTrace();
Log.e("Couldn't Load",name+" "+photoURI);
}
}
Manifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="lcukerd.com.stufflist">
<application
android:allowBackup="true"
android:icon="@drawable/icon"
android:label="@string/app_name"
android:supportsRtl="true"
android:theme="@style/AppTheme">
<activity
android:name=".StartActivity"
android:label="@string/app_name"
android:theme="@style/AppTheme.NoActionBar">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name=".addItem" />
<uses-feature
android:name="android.hardware.camera"
android:required="false" />
<uses-permission
android:name="android.permission.WRITE_EXTERNAL_STORAGE"
android:maxSdkVersion="18" />
<uses-permission android:name="android.permission.MANAGE_DOCUMENTS" />
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
<provider
android:name="android.support.v4.content.FileProvider"
android:authorities="lcukerd.com.android.fileprovider"
android:exported="false"
android:grantUriPermissions="true">
<meta-data
android:name="android.support.FILE_PROVIDER_PATHS"
android:resource="@xml/file_paths" />
</provider>
<activity android:name=".showList"
android:windowSoftInputMode="stateHidden"></activity>
<activity android:name=".orderevent"></activity>
<activity android:name=".orderitem"></activity>
</application>
</manifest>
我將uri作為String存儲在SQL中,然后在初始化位圖之前讀取它。 另外,我已經檢查了意圖發送的Uri是正確的。 請幫我解決。
移動您的<uses-feature>
和<uses-permission>
元件到其正確的位置: 外 <application>
元件(典型地高於<application>
元素)。
您無法將Uri
保存到數據庫。 雖然這可能適用於具有file
方案的Uri
,但不適用於具有content
方案的Uri
。 您僅短暫地擁有對該內容的權利,而不是無限期地 。 如果需要長期訪問該映像,則需要將該映像的副本復制到您控制的文件中(例如,在getCacheDir()
)。
不要在主應用程序線程上加載位圖。 使用圖像加載庫 。
一旦targetSdkVersion
上升到23或更高,就需要處理運行時權限 。
您無法持有MANAGE_DOCUMENTS
權限,因此只需刪除該權限即可。
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