Android N安装apk报错(android.os.FileUriExposedException)

炒沙作縻终不饱,缕冰文章费工巧。这篇文章主要讲述Android N安装apk报错:android.os.FileUriExposedException相关的知识,希望能为你提供帮助。
StackOverflow: http://stackoverflow.com/questions/38200282/android-os-fileuriexposedexception-file-storage-emulated-0-test-txt-exposed
1.在AndroidMainifest.xml文件中添加:

< provider android:name="android.support.v4.content.FileProvider" android:authorities="${applicationId}.provider" android:exported="false" android:grantUriPermissions="true"> < meta-data android:name="android.support.FILE_PROVIDER_PATHS" android:resource="@xml/provider_paths"/> < /provider>

【Android N安装apk报错(android.os.FileUriExposedException)】###:
authorities:app的包名.fileProvider 
grantUriPermissions:true,表示授予 URI 临时访问权限 
exported:false 
resource:下一步添加的文件
2.在res下新建一个名为xml的文件家,再新建文件provider_paths:
< ?xml version="1.0" encoding="utf-8"?> < paths> < external-path name="files_root" path="Android/data/com.example.downloadapk/"/> < external-path name="external_storage_root" path="."/> < /paths>

###:
path:需要临时授权访问的路径(.代表所有路径) 
name:给访问路径命名
3.安装apk文件:
/** * 安装apk文件 * * @param apkFile 安装包所在目录 */ private void installApk(File apkFile) { Intent intent = new Intent(Intent.ACTION_VIEW); try { String[] command = {"chmod", "777", apkFile.toString()}; ProcessBuilder builder = new ProcessBuilder(command); builder.start(); } catch (IOException ignored) { }if (Build.VERSION.SDK_INT > = Build.VERSION_CODES.N) { intent.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION); Uri contentUri = FileProvider.getUriForFile(getApplicationContext(), BuildConfig.APPLICATION_ID + ".fileProvider", apkFile); intent.setDataAndType(contentUri, "application/vnd.android.package-archive"); } else { intent.setDataAndType(Uri.fromFile(apkFile), "application/vnd.android.package-archive"); intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); }startActivity(intent); }

 





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