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我试图清除除我自己之外的其他Android应用程序的应用程序缓存。为此,我在PackageManager类上使用反射。然而,无论何时在我调用它之前初始化该方法,它总是以null结尾。反映清除Android应用程序缓存的方法
private void initiateClearUserData() {
// Invoke uninstall or clear user data based on sysPackage
String thePackageName;
PackageManager pm = speedy.this.getPackageManager();
List<ApplicationInfo> installedApps = pm.getInstalledApplications(0);
ApplicationInfo ai;// = installedApps.get(0);
ActivityManager.RunningAppProcessInfo process;
for(int x=0; x<4; x++){
ai = installedApps.get(x);
这里是我的问题是:
thePackageName = ai.packageName.toString();// mAppEntry.info.packageName;
Method deleteApplicationCacheFiles = null;
mClearCacheObserver = new ClearCacheObserver();
try {
deleteApplicationCacheFiles = pm.getClass().getMethod(
"deleteApplicationCacheFiles", String.class, PackageManager.class);
} catch (SecurityException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (NoSuchMethodException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
if(deleteApplicationCacheFiles!= null){
try {
deleteApplicationCacheFiles.invoke(thePackageName, 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();
}
}else{
Toast.makeText(speedy.this, "Hell naw",
Toast.LENGTH_SHORT).show();
}
}
}
由于方法deleteApplicationCacheFiles为空,我的烤面包的消息出现。有什么建议么?
嗨@TMiller你找到一个解决方案,你的上述问题?因为我尝试类似的方式来强制停止并清除应用程序的数据?尽快回复,谢谢 – Sudarshan 2013-02-07 06:40:49