IActivityManagerHookHandle.java 文件源码

@Override
protected boolean beforeInvoke(Object receiver, Method method, Object[] args) throws Throwable {
    //2.3,15,16,17,18,19,21
/* public void grantUriPermissionFromOwner(IBinder owner, int fromUid, String targetPkg,
    Uri uri, int mode) throws RemoteException;*/
    //这个函数是用来给某个包授予访问某个URI的权限。
    //插件调用这个函数会传插件自己的包名，而此插件并未被安装。就这样调用原来函数传给系统，是会出问题的。所以改成宿主程序的包名。
    final int index = 2;
    if (args != null && args.length > index) {
        if (args[index] != null && args[index] instanceof String) {
            String targetPkg = (String) args[index];
            if (isPackagePlugin(targetPkg)) {
                args[index] = mHostContext.getPackageName();
            }
        }
    }

    return super.beforeInvoke(receiver, method, args);
}