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java.lang.IllegalArgumentException:未能找到包含/storage/emulated/0/Pictures/的已配置根目录 - 问答
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睿智的弓箭
1 年前 |
java.lang.IllegalArgumentException:未能找到包含/storage/emulated/0/Pictures/的已配置根目录
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回答
4
得票数
14
原文
寻找一些帮助的错误，我得到了一个错误时，试图存储与相机拍摄的应用程序，我正在尝试开发的帮助。错误是
java.lang.IllegalArgumentException:找不到包含/storage/emulated/0/Pictures/JPEG20161108_153704_的已配置根
在我的代码中，logcat指向调用FileProvider.getUriForFile的行中的此方法。
private void dispatchTakePhoto() {
Intent takePictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
startActivity(takePictureIntent); // this worked originally
if (takePictureIntent.resolveActivity(getPackageManager()) != null) {
File photoFile = null;
try {
photoFile = createImageFile();
} catch (IOException e) {
e.printStackTrace();
Log.e(TAG, ""+e);
if (photoFile != null) {
Uri photoURI = FileProvider.getUriForFile(TallyActivity2.this,
"com.example.bigdaddy.pipelinepipetally.fileprovider", photoFile);
takePictureIntent.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
takePictureIntent.putExtra(MediaStore.EXTRA_OUTPUT, photoURI);
startActivityForResult(takePictureIntent, REQUEST_IMAGE_CAPTURE);
}此方法用于创建图像文件
private File createImageFile() throws IOException {
/* Create an image file name */
String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss", Locale.getDefault()).format(new Date());
String imageFileName = "JPEG" + timeStamp + "_";
File storageDir = new File(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES).getAbsoluteFile(), imageFileName);
File path = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES);
/* Tried this also, not working. Leaving for debugging.
File image = File.createTempFile(
imageFileName,
".jpg",
storageDir
File image = new File(path, imageFileName);
try {
/* Making sure the Pictures directory exist.*/
path.mkdir();
storageDir.createNewFile();
}catch (Exception e) {
e.printStackTrace();
/* Save a file: path for use with ACTION_VIEW intents */
mCurrentPhotoPath = "file:" + image.getAbsolutePath();
return image;
}
下面是
onActivityResult()
方法，我想用saveImage()方法将捕获的图像保存到一个类中，并将缩略图设置为
ImageView
。saveImage()方法返回一个字节，这样我就可以通过意图将Bundle中的字节传递给另一个全屏活动，如果用户单击缩略图
ImageView
，它将在那里显示。
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
/* If it's equal to my REQUEST_IMAGE_CAPTURE var, we are all good. */
if (requestCode == REQUEST_IMAGE_CAPTURE && resultCode == RESULT_OK) {
Bundle extras = data.getExtras();
Bitmap imageBitmap = (Bitmap) extras.get("data");
/*Saving to the Pipe class with the saveImage() method below.*/
sDummyImagePicByte = saveImage(imageBitmap);
/* Going ahead an setting the thumbnail here for the picture taken*/
mPipePicImage.setImageBitmap(imageBitmap);
Log.i(TAG,Arrays.toString(sDummyImagePicByte)+" after assignment from saveImage()");
}
这是
Manifest.xml
文件
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
package="com.example.bigdaddy.pipelinepipetally">
<uses-permission android:name="android.permission.READ_CONTACTS"/>
<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"
android:maxSdkVersion="18"/>
<uses-permission android:name="android.permission.CAMERA"/>
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
<uses-permission android:name="android.permission.ACCESS_LOCATION_EXTRA_COMMANDS"/>
<application
android:allowBackup="true"
android:debuggable="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:supportsRtl="true"
android:theme="@style/AppTheme"
tools:ignore="HardcodedDebugMode">
<activity
android:name=".MainActivity"
android:windowSoftInputMode="adjustResize">
<intent-filter>
<action android:name="android.intent.action.MAIN"/>
<category android:name="android.intent.category.LAUNCHER"/>
</intent-filter>
</activity>
<activity
android:name=".TallyActivity2"
android:windowSoftInputMode="adjustResize">
</activity>
<activity
android:name=".JobAndDbActivity"
android:windowSoftInputMode="adjustResize">
</activity>
<activity
android:name=".ExistingTallyActivity"
android:windowSoftInputMode="adjustResize">
</activity>
<activity android:name=".ImageToFullscreen"
android:windowSoftInputMode="adjustResize">
</activity>
<provider
android:name="android.support.v4.content.FileProvider"
android:authorities="com.example.bigdaddy.pipelinepipetally.fileprovider"
android:exported="false"
android:grantUriPermissions="true">
<meta-data
android:name="android.support.FILE_PROVIDER_PATHS"
android:resource="@xml/file_paths">
</meta-data>
</provider>
</application>
</manifest>
下面是我创建并放在app/res/xml/文件夹中的
file_paths.xml
文件(也是我创建的)。不确定这是否是(文件夹的)正确位置。
<paths >
<files-path name="my_images" path="files/"/>
</paths>
这也是
onRequestPermissionsResult()
@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String permissions[],
@NonNull int[] grantResults) {
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
switch (requestCode) {
case MY_PERMISSIONS_REQUEST_CAMERA:
/* if request is canceled, the result arrays are empty */
if(grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED){
/* Permissions granted so the mPermissionIsGranted boolean is set to true*/
mPermissionIsGranted = true;
} else {
Permissions denied so the mPermissionIsGranted boolean stays false here and
providing a Toast message to the user, letting them know that camera permissions
are required for this feature.
Toast.makeText(getApplicationContext(),"Camera permissions required\nfor this" +
"feature.",
Toast.LENGTH_LONG).show();
/* Continuing to hold the false setting to this boolean since not granted.*/
mPermissionIsGranted = false;
break;
/* For accessing and writing to the SD card*/
case MY_PERMISSIONS_REQUEST_SD_CARD:
/* if request is canceled, the result arrays are empty */
if(grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED){
/* Permissions granted so the mPermissionIsGranted boolean is set to true*/
mPermissionIsGranted = true;
} else {
Permissions denied so the mPermissionIsGranted boolean stays false here and
providing a Toast message to the user, letting them know that camera permissions
are required for this feature.
Toast.makeText(getApplicationContext(),"SD Card permissions required\nfor this"+
"feature.",
Toast.LENGTH_LONG).show();
/* Continuing to hold the false setting to this boolean since not granted.*/
mPermissionIsGranted = false;
break;
/* For the GPS location permissions.*/
default: MY_PERMISSIONS_REQUEST_FINE_LOCATION:
/* Still to be implemented .*/
break;
}我非常感谢大家在这方面的帮助。我还是个新手，还在学习Android。提前谢谢。
4 个回答
高票数
最新
Sagar Chavada
修改于2017-02-23 16:50
得票数
14
有点晚了..。但我最终还是解决了。
根据
documentation
：
The path component only corresponds to the path that is returned by getExternalFilesDir() when called with Environment.DIRECTORY_PICTURES.
所以请使用
getExternalFilesDir(Environment.DIRECTORY_PICTURES)
而不是
Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES)你的路径应该是这样的：
<?xml version="1.0" encoding="utf-8"?>
<paths>
<external-path name="InstructiveRide" path="Android/data/com.package.ride/files/Pictures"/>
</paths>如果你在图片目录下有一个子目录，写下这个。
<?xml version="1.0" encoding="utf-8"?>
<paths>
<external-path name="InstructiveRide" path="Android/data/com.package.ride/files/Pictures/InstructiveRide/"/>
</paths>
user1154390
回答于2018-05-15 23:45
得票数
5
我也在尝试升级我的应用程序，以避免FileUriExposedException。我想实现与实际问题中提到的相同的结果。我成功地与
Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY\_PICTURES)唯一的诀窍是使用下面的路径
<?xml version="1.0" encoding="utf-8"?>
<paths>
<external-path name="external_files" path="." />
</paths>我从下面的博客中得到了这个提示。
https://proandroiddev.com/sharing-files-though-intents-are-you-ready-for-nougat-70f7e9294a0b
我花了几个小时才弄清楚。我希望这能节省一些人的时间。
saleh sereshki
回答于2018-06-11 08:17
得票数
2
我的问题是，我在
debug
模式下的
build.gradle
文件中为我的应用程序id定义了一个后缀，当我在调试模式下运行应用程序时，包名称与我在代码中提到的不兼容。最好在
xml
和
java
代码中设置applicationId(packagename)变量。
要在您的menifest中为您的提供程序集执行此操作：
android:authorities="${applicationId}.fileprovider"在你的java代码中：
Uri photoURI = FileProvider.getUriForFile(context,
getApplicationContext().getPackageName()+".fileprovider",对于您的提供者路径，为不同的构建变量(发布和调试)创建两个不同的文件。
对于发行版：
<external-path name="my_images" path="Android/data/com.android.example/files/Pictures" />对于debug：
<external-path name="my_images" path="Android/data/com.android.example.debug/files/Pictures" />
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