Java WebImageCache类代码示例

import com.loopj.android.image.WebImageCache; //导入依赖的package包/类
public ImagesHelper(Context context) {
    this.context = context;
    this.sharedPreferences = this.context.getSharedPreferences(RainbowConst.SHARED_PREFERENCES_NAME, Context.MODE_PRIVATE);
    // init cache
    this.imgCache = new WebImageCache(this.context);
    this.cacheSize = this.sharedPreferences.getInt(SHARED_CACHE_SIZE, 0);
    checkCacheSize();
}
 

import com.loopj.android.image.WebImageCache; //导入依赖的package包/类
public Bitmap getCachedBitmap() {
    WebImageCache cache = useCache ? getWebImageCache() : null;
    return cache != null ? cache.get(url) : null;
}
 

import com.loopj.android.image.WebImageCache; //导入依赖的package包/类
public static void removeFromCache(String url) {
    WebImageCache cache = getWebImageCache();
    if (cache != null) {
        cache.remove(url);
    }
}
 

import com.loopj.android.image.WebImageCache; //导入依赖的package包/类
@Override
public boolean onOptionsItemSelected(MenuItem item) {
    switch (item.getItemId()) {
        case R.id.mainmenu_openhab_preferences:
            Intent settingsIntent = new Intent(this.getApplicationContext(), OpenHABPreferencesActivity.class);
            startActivityForResult(settingsIntent, SETTINGS_REQUEST_CODE);
            Util.overridePendingTransition(this, false);
            return true;
        case R.id.mainmenu_openhab_selectsitemap:
            SharedPreferences settings =
                    PreferenceManager.getDefaultSharedPreferences(OpenHABMainActivity.this);
            SharedPreferences.Editor preferencesEditor = settings.edit();
            preferencesEditor.putString("default_openhab_sitemap", "");
            preferencesEditor.commit();
            selectSitemap(openHABBaseUrl, true);
            return true;
        case android.R.id.home:
            Log.d(TAG, "Home selected");
            if (pager.getCurrentItem() > 0) {
                pager.setCurrentItem(0);
            }
            return true;
        case R.id.mainmenu_openhab_clearcache:
            Log.d(TAG, "Restarting");
            // Get launch intent for application
            Intent restartIntent = getBaseContext().getPackageManager()
                    .getLaunchIntentForPackage( getBaseContext().getPackageName() );
            restartIntent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
            // Finish current activity
            finish();
            WebImageCache cache = new WebImageCache(getBaseContext());
            cache.clear();
            // Start launch activity
            startActivity(restartIntent);
            // Start launch activity
            return true;
        case R.id.mainmenu_openhab_writetag:
            Intent writeTagIntent = new Intent(this.getApplicationContext(), OpenHABWriteTagActivity.class);
            // TODO: get current display page url, which? how? :-/
            OpenHABWidgetListFragment currentFragment = pagerAdapter.getFragment(pager.getCurrentItem());
            writeTagIntent.putExtra("sitemapPage", currentFragment.getDisplayPageUrl());
            startActivityForResult(writeTagIntent, WRITE_NFC_TAG_REQUEST_CODE);
            Util.overridePendingTransition(this, false);
            return true;
        case R.id.mainmenu_openhab_info:
            Intent infoIntent = new Intent(this.getApplicationContext(), OpenHABInfoActivity.class);
            infoIntent.putExtra("openHABBaseUrl", openHABBaseUrl);
            infoIntent.putExtra("username", openHABUsername);
            infoIntent.putExtra("password", openHABPassword);
            startActivityForResult(infoIntent, INFO_REQUEST_CODE);
            Util.overridePendingTransition(this, false);
            return true;
        case R.id.mainmenu_voice_recognition:
            launchVoiceRecognition();
            return true;
        case R.id.mainmenu_openhab_flipper:
            this.startActivity(new Intent(this, MainActivity.class));
            return true;
        default:
            return super.onOptionsItemSelected(item);
    }
}
 

import com.loopj.android.image.WebImageCache; //导入依赖的package包/类
@Override
 public boolean onOptionsItemSelected(MenuItem item) {
 	switch (item.getItemId()) {
 	case R.id.mainmenu_openhab_preferences:
         Intent settingsIntent = new Intent(this.getApplicationContext(), OpenHABPreferencesActivity.class);
         Util.overridePendingTransition(this, false);
 		return true;
 	case R.id.mainmenu_openhab_selectsitemap:
SharedPreferences settings = 
PreferenceManager.getDefaultSharedPreferences(OpenHABWidgetListActivity.this);
Editor preferencesEditor = settings.edit();
preferencesEditor.putString("default_openhab_sitemap", "");
preferencesEditor.commit();
 		selectSitemap(openHABBaseUrl, true);
 		return true;
     case android.R.id.home:
         Log.d(HABApplication.getLogTag(), "Home selected - " + sitemapRootUrl);
// Get launch intent for application
Intent homeIntent = getBaseContext().getPackageManager()
            .getLaunchIntentForPackage( getBaseContext().getPackageName() );
homeIntent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK);
homeIntent.setAction("org.openhab.habdroid.ui.OpwnHABWidgetListActivity");
homeIntent.putExtra("displayPageUrl", sitemapRootUrl);
homeIntent.putExtra("openHABBaseUrl", openHABBaseUrl);
homeIntent.putExtra("sitemapRootUrl", sitemapRootUrl);
         Log.d(HABApplication.getLogTag(), String.format("openPage intent =>/ndisplayPageUrl = '%s'/nopenHABBaseUrl = '%s'/nsitemapRootUrl = '%s'", sitemapRootUrl, openHABBaseUrl, sitemapRootUrl));
// Finish current activity
finish();
// Start launch activity
startActivity(homeIntent);
Util.overridePendingTransition(this, true);		
         return true;
     case R.id.mainmenu_openhab_clearcache:
Log.d(HABApplication.getLogTag(), "Restarting");
// Get launch intent for application
Intent restartIntent = getBaseContext().getPackageManager()
            .getLaunchIntentForPackage( getBaseContext().getPackageName() );
restartIntent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
// Finish current activity
finish();
     	WebImageCache cache = new WebImageCache(getBaseContext());
     	cache.clear();
// Start launch activity
startActivity(restartIntent);
// Start launch activity
return true;
     case R.id.mainmenu_openhab_writetag:
         Intent writeTagIntent = new Intent(this.getApplicationContext(), OpenHABWriteTagActivity.class);
         writeTagIntent.putExtra("sitemapPage", this.displayPageUrl);
         startActivityForResult(writeTagIntent, 0);
         Util.overridePendingTransition(this, false);
 		return true;
     default:
 		return super.onOptionsItemSelected(item);
 	}
 }
 

import com.loopj.android.image.WebImageCache; //导入依赖的package包/类
/**
 * Returns the already initialized WebImageCache, if there's any. This method may return
 * null if {@link MyWebImage#getWebImageCache(Context ctx)} was not called so far.
 *
 * @return WebImageCache|null
 */
public static WebImageCache getWebImageCache() {
    return sWebImageCache;
}