如何使用PhoneGap和
Android清除用户数据或清除缓存？下面的代码不起作用.我应该在哪里进行更改;在HTML方面还是在Java方面？此外,我正在访问一个AJAX请求,并且在第二次尝试PUT方法时,数据不会更新,因此我的主要疑问是Android存储的用户数据.我在我的AJAX请求中添加了cache：false以确保它不存储缓存.但它仍然无效.有想法该怎么解决这个吗？
我有这个代码来自另一个问题.
public static void deleteCache(Context context) {
try {
File dir = context.getCacheDir();
if (dir != null && dir.isDirectory()) {
deleteDir(dir);
}
} catch (Exception e) {}
}
public static boolean deleteDir(File dir) {
if (dir != null && dir.isDirectory()) {
String[] children = dir.list();
for (int i = 0; i < children.length; i++) {
boolean success = deleteDir(new File(dir,children[i]));
if (!success) {
return false;
}
}
}
return dir.delete();
}
所以基本上我的POSActivity.java看起来像这样.
public class PocActivity extends DroidGap {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
super.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);
super.setIntegerProperty("splashscreen",R.drawable.is);
super.setIntegerProperty("loadUrlTimeoutValue",60000);
deleteCache(this);
super.loadUrl("file:///android_asset/www/index.html");
}
public static void deleteCache(Context context) {
try {
File dir = context.getCacheDir();
if (dir != null && dir.isDirectory()) {
deleteDir(dir);
}
} catch (Exception e) {}
}
public static boolean deleteDir(File dir) {
if (dir != null && dir.isDirectory()) {
String[] children = dir.list();
for (int i = 0; i < children.length; i++) {
boolean success = deleteDir(new File(dir,children[i]));
if (!success) {
return false;
}
}
}
return dir.delete();
}
}
