exposed beyond app through ClipData Item getUri

Question

I have been trying to fix a problem after the new feature was included in the Android file system but I get this ERROR:

android.os.FileUriExposedException: file:///storage/emulated/0/MyApp/Camera_20180105_172234.jpg exposed beyond app through ClipData.Item.getUri()

Could I please get help in getting past this ERROR ?

private Uri getTempUri() { 
      // Create an image file name 
      SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMdd_HHmmss"); 
      String dt = sdf.format(new Date()); 
      imageFile = null; 
        imageFile = new File(Environment.getExternalStorageDirectory() 
                      + "/MyApp/", "Camera_" + dt + ".jpg"); 
AppLog.Log( 
                TAG, 
                "New Camera Image Path:- " 
                                    + Environment.getExternalStorageDirectory() 
                                    + "/MyApp/" + "Camera_" + dt + ".jpg"); 
File file = new File(Environment.getExternalStorageDirectory() + "/MyApp"); 
if (!file.exists()) { 
    file.mkdir(); 
} 
imagePath = Environment.getExternalStorageDirectory() + "/MyApp/" 
                + "Camera_" + dt + ".jpg"; 
imageUri = Uri.fromFile(imageFile); 
return imageUri; }

Answer 1

To solve this ERROR you need to set your sdk 24 and up, if you need to get the Uri of a file outside your app storage you have this error. However if you want to follow the google guideline without having to change the API policy of your app you have to use a FileProvider. At first to get the URI of a file you need to use FileProvider.getUriForFile() method:

Uri imageUri = FileProvider.getUriForFile( 
                      MainActivity.this, 
                      "com.example.homefolder.example.provider", //(use your app signature + ".provider" ) imageFile);

Then you need to configure who is your provider in your android manifest :
 

<application> 
…
        <provider 
              android:name="android.support.v4.content.FileProvider"  android:authorities="com.example.homefolder.example.provider" android:exported="false"   android:grantUriPermissions="true"> 
<!-- ressource file to create --> 
<meta-data 
            android:name="android.support.FILE_PROVIDER_PATHS"

            android:resource="@xml/file_paths"> 
        </meta-data>
      </provider>
</application>

(In "authorities" use the same value than the second argument of the getUriForFile() method (app signature + ".provider"))

And finally you need to create the resources file: "file_paths". This file need to be created under the res/xml directory:

<?xml version="1.0" encoding="utf-8"?> 
<paths xmlns:android="http://schemas.android.com/apk/res/android"> 
            <external-path name="external_files" path="." /> 
</paths>