//访问某个属性
Context mmsCtx = createPackageContext("com.android.lockscreen", Context.CONTEXT_INCLUDE_CODE | Context.CONTEXT_IGNORE_SECURITY); Class<?> maClass = Class.forName("com.android.lockscreen.LockScreenActivity",true,Object maObject = maClass.newInstance();Field f_mPm = maClass.getDeclaredField("TAG"); f_mPm.setAccessible(true); Log.i(LOG_TAG,"obj:"+f_mPm.get(maObject)); |
//访问方法
//访问try Context mmsCtx = createPackageContext("com.android.lockscreen", Context.CONTEXT_INCLUDE_CODE | Context.CONTEXT_IGNORE_SECURITY); Class<?> maClass = Class.forName("com.android.lockscreen.LockScreenActivity",true, Object maObject = maClass.newInstance(); Field f_mPm = maClass.getDeclaredField("TAG"); //maClass.getDeclaredMethod("", parameterTypes); f_mPm.setAccessible(true); Log.i(LOG_TAG,"obj:"+f_mPm.get(maObject)); Class[] resource =newClass[]{Context.class}; resourceObj =newObject[]{mmsCtx}; Method addsMethod = maClass.getDeclaredMethod("getLockScreenView", resource); addsMethod.setAccessible(true); View addsResult = (View)addsMethod.invoke(maObject, resourceObj); Log.i(LOG_TAG,"addsResult:"+addsResult); }catch(Exception e) { // TODO Auto-generated catch block e.printStackTrace(); }//定义被访问public LockScreenActivity extendsActivity { privateString TAG ="LockScreenActivity"; //private LockScreen mScreen = new LockScreen(LockScreenActivity.this); privateLockScreen getLockScreenView(Context context){ Log.i(TAG,"context:"+context); returnnewLockScreen(context); } } |
//获取setting包的的Context Context mmsCtx = createPackageContext("com.android.settings", Context.CONTEXT_INCLUDE_CODE | Context.CONTEXT_IGNORE_SECURITY); //使用setting的classloader加载com.android.settings.ManageApplications类 Class<?> maClass = Class.forName("com.android.settings.ManageApplications",true,
mmsCtx.getClassLoader()); //创建它的一个对象 Object maObject = maClass.newInstance(); /* * 将私有域mPm赋值。因为mPm在SizeObserver的invokeGetSize中用到了， * 却因为没有执行onCreate而没有初始化，所以要在此处初始化。 */ Field f_mPm = maClass.getDeclaredField("mPm"); f_mPm.setAccessible(true); f_mPm.set(maObject, mmsCtx.getPackageManager());
转自：http://www.cnblogs.com/wanqieddy/archive/2011/10/25/2224200.html