Android7.0相机拍照功能导致FileUriExposedException

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所遇问题:

FATAL EXCEPTION: main

Process: com.inthecheesefactory.lab.intent_fileprovider, PID: 28905
android.os.FileUriExposedException: file:///storage/emulated/0/DCIM/Camera/JPEG_20160723_124304_642070113.jpg exposed beyond app through ClipData.Item.getUri()
at android.os.StrictMode.onFileUriExposed(StrictMode.java:1799)
at android.net.Uri.checkFileUriExposed(Uri.java:2346)
at android.content.ClipData.prepareToLeaveProcess(ClipData.java:832)
...

解决办法:

1. 添加provider

<provider
android:name="android.support.v4.content.FileProvider"
android:authorities="包名.fileprovider"
android:exported="false"
android:grantUriPermissions="true">
<meta-data
android:name="android.support.FILE_PROVIDER_PATHS"
android:resource="@xml/file_paths" />
</provider>

2. 增加res/xml/file_paths.xml

<?xml version="1.0" encoding="utf-8"?>
<paths>
<external-path name="external_files" path="."/>
</paths>

3. 适配7.0代码

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
takePictureIntent.putExtra(MediaStore.EXTRA_OUTPUT,FileProvider.getUriForFile(activity,"包名.fileprovider", takeImageFile));
} else { 
takePictureIntent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(takeImageFile));
}

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