关于APK默认权限修改
1.系统签名应用
frameworks/base/services/core/java/com/android/server/pm/DefaultPermissionGrantPolicy.java
在grantDefaultSystemHandlerPermissions中修改
// Camera
Intent cameraIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
PackageParser.Package cameraPackage = getDefaultSystemHandlerActivityPackageLPr(
cameraIntent, userId);
if (cameraPackage != null
&& doesPackageSupportRuntimePermissions(cameraPackage)) {
grantRuntimePermissionsLPw(cameraPackage, CAMERA_PERMISSIONS, userId);
grantRuntimePermissionsLPw(cameraPackage, MICROPHONE_PERMISSIONS, userId);
grantRuntimePermissionsLPw(cameraPackage, STORAGE_PERMISSIONS, userId);
}
// feedback
+ PackageParser.Package feedBackPackage = getPackageLPr("android.com.feedback");
+ if (feedBackPackage != null
+ && doesPackageSupportRuntimePermissions(feedBackPackage)) {
+ grantRuntimePermissionsLPw(feedBackPackage, STORAGE_PERMISSIONS, userId);
+ grantRuntimePermissionsLPw(feedBackPackage, CAMERA_PERMISSIONS, userId);
+ }
2.非系统签名应用,(手动安装以及v2签名应用)
frameworks/base/services/core/java/com/android/server/pm/PackageManagerService.java
在grantPermissionsLpw函数中添加如下代码
//Permissions for com.xxx.xxx
if(pkg.packageName.contains("com.xxx.xxx")) {
final int permsSize = pkg.requestedPermissions.size();
for (int i=0; i<permsSize; i++) {
final String name = pkg.requestedPermissions.get(i);
final BasePermission bp = mSettings.mPermissions.get(name);
if(null != bp && permissionsState.grantInstallPermission(bp) != PermissionsState.PERMISSION_OPERATION_FAILURE) {
Slog.d(TAG, "zrx--- grant permission " + name + " to package " + pkg.packageName);
changedInstallPermission = true;
}
}
}
针对第一种修改,还有一种方法
1, 需要新建一个以.xml结尾的XML文件,例如default-permissions.xml
2,这个文件的内容如下:
<?xml version='1.0' encoding='utf-8' standalone='yes' ?>
<exceptions>
<exception package="com.mediatek.filemanager">
<permission name="android.permission.READ_EXTERNAL_STORAGE" fixed="true"/>
<permission name="android.permission.WRITE_EXTERNAL_STORAGE" fixed="true"/>
</exception>
</exceptions>
3,将这个文件拷贝到system/etc/default-permissions/default-permissions.xml这个目录下。
4, 恢复出厂设置验证