利用java反射机制，使用android系统的内部类成员函数
//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
, mmsCtx.getClassLoader());
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
, mmsCtx.getClassLoader());
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 =
new
Class[]{Context.
class
};
Object[] resourceObj =
new
Object[]{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
class
LockScreenActivity
extends
Activity {
private
String TAG =
"LockScreenActivity"
;
//private LockScreen mScreen = new LockScreen(LockScreenActivity.this);
private
LockScreen getLockScreenView(Context context){
Log.i(TAG,
"_________________________________________context:"
+context);
return
new
LockScreen(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());
|
分类:
android solve
本文转自wanqi博客园博客，原文链接http://www.cnblogs.com/wanqieddy/archive/2011/10/25/2224200.html
：如需转载请自行联系原作者
