private static final long CACHE_APP = Long.MAX_VALUE;
private CachePackageDataObserver mClearCacheObserver;
btnCache.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
clearCache();
}
});//End of btnCache Anonymous class
void clearCache()
{
if (mClearCacheObserver == null)
{
mClearCacheObserver=new CachePackageDataObserver();
}
PackageManager mPM=getPackageManager();
@SuppressWarnings("rawtypes")
final Class[] classes= { Long.TYPE, IPackageDataObserver.class };
Long localLong=Long.valueOf(CACHE_APP);
try
{
Method localMethod=
mPM.getClass().getMethod("freeStorageAndNotify", classes);
/*
* Start of inner try-catch block
*/
try
{
localMethod.invoke(mPM, localLong, mClearCacheObserver);
}
catch (IllegalArgumentException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
catch (IllegalAccessException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
catch (InvocationTargetException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
/*
* End of inner try-catch block
*/
}
catch (NoSuchMethodException e1)
{
// TODO Auto-generated catch block
e1.printStackTrace();
}
}//End of clearCache() method
private class CachePackageDataObserver extends IPackageDataObserver.Stub
{
public void onRemoveCompleted(String packageName, boolean succeeded)
{
}//End of onRemoveCompleted() method
}//End of CachePackageDataObserver instance inner class
class CachePackageDataObserver extends IPackageDataObserver.Stub {
public void onRemoveCompleted(String packageName, boolean succeeded) {
}//End of onRemoveCompleted() method
}
I am using Below permission
<uses-permission android:name="android.permission.CLEAR_APP_CACHE"/>
The above code works fine for devices < Marsh Mellow but when i run this code on Marshmellow devices it causes exception. i read many post that say that CLEAR_APP_CACHE permission is system reserved in and not for third party. then how do Clean master and other apps clear internal caches of other apps in android. please help me to solve the exception so that i can clear the caches of third party apps progrmatically. Thanks in Advance.
