授予Android应用（.apk）文件根访问权限

Question

I develope application in which i execute command which need to root access.

I also used java Process to execute command but it also not working.

For that i use c api using JNI ( NDK ) but it also not have access as root. because it having same permission as application.

My device as root access that's why it execute command in adb shell. but not from application.

is there any way to give root permission to application ?

Please give solution ...

Answer 1

For give application system permission.

you need to sign application with the platform signature. You need to use keys located in <root-of-android-source-tree>/build/target/product/security/ and add android:sharedUserId="android.uid.system" in your AndroidManifest.xml file.

Steps :

sign application with the platform certificate and run it with the system sharedUserId. These are the steps:

• Build and flash to your Dream your own Android using http://source.android.com/documentation/building-for-dream . Use the mkkey.sh script on http://pdk.android.com/online-pdk/guide/release_keys.html to create new certificates, including x509 certificates before you do 'make'.
• In the AndroidManifest.xml of your application: under the <manifest> element, add the attribute android:sharedUserId="android.uid.system" .
• Export an unsigned version of your Android application using Eclipse: right-click on the project >> Android Tools >> Export Unsigned Application Package.

• Use <root-of-android-source-tree>/out/host/<your-host>/framework/signapk.jar to sign your app using platform.x509.pem and platform.pk8 in <root-of-android-source-tree>/build/target/product/security generated earlier:

   java -jar signapk.jar platform.x509.pem platform.pk8 YourApp-unsigned.apk YourApp-signed.apk. 

• Install the app to your device:

   adb install YourApp-signed.apk 

• Run your app
• Use adb shell ps to confirm that your app is running as system.

Answer 2

谈论根访问权限时，您必须在清单文件链接中提供权限，然后在根电话中安装该应用程序之后，su应用程序将要求进行根访问权限