问题
I have added \"android.permission.WRITE_SECURE_SETTINGS\" in the Manifest. But still i get an error message saying - required \"WRITE_SECURE_SETTINGS\".
I have seen a lot of talks about this, and that this setting is prevented for third party software.
It is any other way that i can add my application can gain this permission?
I have see this adb command, but i not so familiar how to use this to add my application to my device, is below command is require root my device before it can be use because it failed to copy by Read-only file system?
adb remount
adb push app.apk /system/app/
回答1:
Firstly, as you have read before, WRITE_SECURE_SETTINGS is NOT available to applications! So you cannot use this permission regardless whether you are on rooted or production builds.
So, if you wish to enable this setting, create your own firmware that does what you need and load that firmware on whatever devices you wish. Or, contribute your changes to existing firmware mods (e.g., Cyanogen).
Some other applications use techniques like Reflection using Java to gain access to functions not exposed via API, you can probably try the same.
Secondly, adb remount does not work as is with production builds unless the phone is rooted or firmware enables it by default.
回答2:
I recently struggled with this very thing. My client wanted an app that would turn NFC off when the device was charging (wireless charger) and then on when it was removed from the charger. I was running KitKat on my Nexus 7, and even though I had WRITE_SECURE_SETTINGS in the Manifest, and the app in /system/app/, it would not work.
Turns out, that in 4.4 they added additional security. In 4.3 however, it works if three things are true:
- Manifest has
WRITE_SECURE_SETTINGS - App is in
/system/app/ - The package is signed by a key (any key)
I rooted the device using the awesome Nexus Root Toolkit (NRT) from http://www.wugfresh.com/nrt/ then installed BusyBox and system app mover from:
https://play.google.com/store/apps/details?id=stericson.busybox https://play.google.com/store/apps/details?id=de.j4velin.systemappmover
I installed my custom signed APK and moved it into place using system app mover, which then restarted the device. It worked perfectly. Hope this helps.
回答3:
For the api that I used, which required WRITE_SECURE_SETTINGS privileges, I had to include this in the manifest:
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
...
coreApp="true"
android:sharedUserId="android.uid.system">
<uses-permission android:name="android.permission.WRITE_SECURE_SETTINGS"/>
...
ref: https://github.com/android/platform_packages_apps_settings/blob/master/AndroidManifest.xml
I also had to run the application as a system app (under: /system/app). Here is an how to: http://www.addictivetips.com/mobile/how-to-install-any-app-as-system-app-on-android/
回答4:
I would like to add that WRITE_SECURE_SETTINGS permission can be granted over adb and this approach does NOT require root. Here is a command:
adb shell pm grant your.package.name android.permission.WRITE_SECURE_SETTINGS
回答5:
I met this situation too,and then i follow the rules below: 1.add WRITE_SECURE_SETTINGS in manifest 2.make my own firmware 3.add LOCAL_CERTIRICATE := platform
回答6:
I was able to fix this problem by enabling notification access.
go to settings
click on sound and notification
scroll down
click on notification access
来源：https://stackoverflow.com/questions/13045283/write-secure-settings-permission-error-even-when-added-in-manifest