【发布时间】：2016-11-08 23:52:09
【问题描述】：
在尝试为我正在尝试开发的应用程序存储使用相机拍摄的照片时遇到错误，寻求帮助。错误是
java.lang.IllegalArgumentException：未能找到包含 /storage/emulated/0/Pictures/JPEG20161108_153704_ 的配置根目录
logcat 在我的代码中指向这个方法，在 FileProvider.getUriForFile 被调用的那一行。
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;
}
这里是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，因此我可以通过 Intent 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，它将在其中显示。
@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>
这是我创建并放入 app/res/xml/ 文件夹（我也创建）中的 file_paths.xml 文件。不确定这是否是正确的位置（文件夹）。
<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;
}
}
我非常感谢您对此提供的任何帮助。我还是新手，正在学习 Android。提前致谢。
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