android.os.FileUriExposedException: file:///sdcard/update/wiiwork.apk exposed beyond app through I

03-10 10:44:55.401 610-610/com.scjt.wiiwork E/AndroidRuntime: FATAL EXCEPTION: main

                                                              Process: com.scjt.wiiwork, PID: 610

                                                              android.os.FileUriExposedException: file:///sdcard/update/wiiwork.apk exposed beyond app through Intent.getData()

                                                                  at android.os.StrictMode.onFileUriExposed(StrictMode.java:1816)

                                                                  at android.net.Uri.checkFileUriExposed(Uri.java:2350)

                                                                  at android.content.Intent.prepareToLeaveProcess(Intent.java:9076)

                                                                  at android.content.Intent.prepareToLeaveProcess(Intent.java:9037)

                                                                  at android.app.Instrumentation.execStartActivity(Instrumentation.java:1530)

                                                                  at android.app.Activity.startActivityForResult(Activity.java:4391)

                                                                  at android.support.v4.app.BaseFragmentActivityJB.startActivityForResult(BaseFragmentActivityJB.java:48)

                                                                  at android.support.v4.app.FragmentActivity.startActivityForResult(FragmentActivity.java:75)

                                                                  at android.app.Activity.startActivityForResult(Activity.java:4335)

                                                                  at android.support.v4.app.FragmentActivity.startActivityForResult(FragmentActivity.java:856)

                                                                  at android.app.Activity.startActivity(Activity.java:4697)

                                                                  at android.app.Activity.startActivity(Activity.java:4665)

                                                                  at com.scjt.wiiwork.utils.UpdateManager.installApk(UpdateManager.java:317)

                                                                  at com.scjt.wiiwork.utils.UpdateManager.access$900(UpdateManager.java:38)

                                                                  at com.scjt.wiiwork.utils.UpdateManager$5.handleMessage(UpdateManager.java:295)

                                                                  at android.os.Handler.dispatchMessage(Handler.java:102)

                                                                  at android.os.Looper.loop(Looper.java:156)

                                                                  at android.app.ActivityThread.main(ActivityThread.java:6524)

                                                                  at java.lang.reflect.Method.invoke(Native Method)

                                                                  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:941)

                                                                  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:831)



原因：

Android N 上 安装Apk时报错：android.os.FileUriExposedException: file:///sdcard/update/wiiwork.apk exposed
beyond app through Intent.getData()

解决办法：

1、在AndroidManifest.xml中添加如下代码

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

注意：

authorities：app的包名.fileProvider

grantUriPermissions：必须是true，表示授予 URI 临时访问权限

exported：必须是false

resource：中的@xml/file_paths是我们接下来要添加的文件

2、在res目录下新建一个xml文件夹，并且新建一个file_paths的xml文件（如下图）

3、打开file_paths.xml文件添加如下内容

<?xml version="1.0" encoding="utf-8"?>
<paths>
<external-path path="Android/data/app的包名/" name="files_root" />
<external-path path="." name="external_storage_root" />
</paths>

path：需要临时授权访问的路径（.代表所有路径）

name：就是你给这个访问路径起个名字

4、修改代码适配Android N

Intent intent = new Intent(Intent.ACTION_VIEW);
//判断是否是AndroidN以及更高的版本
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
intent.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
Uri contentUri = FileProvider.getUriForFile(context, BuildConfig.APPLICATION_ID + ".fileProvider", apkFile);
intent.setDataAndType(contentUri, "application/vnd.android.package-archive");
} else {
intent.setDataAndType(Uri.fromFile(apkFile), "application/vnd.android.
8bd8
package-archive");
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
}
startActivity(intent);

1、首先我们对Android N及以上做判断；

2、然后添加flags，表明我们要被授予什么样的临时权限

3、以前我们直接

Uri.fromFile(apkFile)

构建出一个Uri,现在我们使用

FileProvider.getUriForFile(context, BuildConfig.APPLICATION_ID + ".fileProvider", apkFile);

4、

BuildConfig.APPLICATION_ID

直接是应用的包名

本文非原创，只是遇到这样的问题，记录下以便解决类似问题。

参考资料：
http://blog.csdn.net/yy1300326388/article/details/52787853