public class HookInit implements IXposedHookLoadPackage { @Override public void handleLoadPackage ( final XC_LoadPackage.LoadPackageParam lpparam ) throws Throwable { XposedHelpers.findAndHookMethod ( "android.app.ContextImpl", lpparam.classLoader, "checkCallingOrSelfPermission", String.class, new XC_MethodReplacement ( ){ @Override protected Object replaceHookedMethod ( XC_MethodHook.MethodHookParam p1 ) throws Throwable { int i=0; return i; } } ); XposedHelpers.findAndHookMethod ( "android.app.Application", lpparam.classLoader, "attach", Context.class, new XC_MethodHook ( ){ @Override protected void afterHookedMethod ( MethodHookParam param ) throws Throwable { Class <?>wmg=XposedHelpers.findClass ( "android.view.WindowManagerGlobal", lpparam.classLoader ); final Object wm=XposedHelpers.callStaticMethod ( wmg, "getWindowManagerService" ); Method setForcedDisplayDensityForUser=XposedHelpers.findMethodBestMatch ( wm.getClass ( ), "setForcedDisplayDensityForUser", int.class, int.class, int.class ); setForcedDisplayDensityForUser.invoke ( wm, 160, Display.DEFAULT_DISPLAY, AndroidAppHelper.currentApplicationInfo ( ).uid ); } } ); } } 目的是想通过 WindowManagerGlobal 获取 WindowManagerService ，然后调用 setForcedDisplayDensityForUser 方法，因为这个方法会用 checkCallingOrSelfPermission 方法检查是否有权限，所以我修改了他的返回值为 0 。 setForcedDisplayDensityForUser 的源码：
@Override public void setForcedDisplayDensityForUser(int displayId, int density, int userId) { if (mContext.checkCallingOrSelfPermission( android.Manifest.permission.WRITE_SECURE_SETTINGS) != PackageManager.PERMISSION_GRANTED) { throw new SecurityException("Must hold permission " + android.Manifest.permission.WRITE_SECURE_SETTINGS); 但这样修改后还是抛出异常"Must hold permission…" 大佬们有没有什么建议
Select Language