修复getOfflineCache没传encrypt参数报错的问题

ipu-plugin-basic/src/main/java/com/ai/ipu/mobile/plugin/MobileStorage.java

@@ -139,7 +139,12 @@ public class MobileStorage extends Plugin{
	public void setOfflineCache(JSONArray param) throws Exception {
		String key = param.getString(0);
		String value = param.getString(1);
		Boolean isEncrypt = param.getBoolean(2);
		Boolean isEncrypt;
		try {
			isEncrypt = param.getBoolean(2);
		} catch (JSONException e) {
			isEncrypt = false;
		}
		setOfflineCache(key,value,isEncrypt);
		callback(value);
	}
@@ -171,7 +176,12 @@ public class MobileStorage extends Plugin{
	public void getOfflineCache(JSONArray param) throws Exception {
		String key = param.getString(0);
		String defValue = param.getString(1);
		Boolean isEncrypt = param.getBoolean(2);
		Boolean isEncrypt;
		try {
			isEncrypt = param.getBoolean(2);
		} catch (JSONException e) {
			isEncrypt = false;
		}
		String value = getOfflineCache(key, defValue,isEncrypt);
		callback(value);
	}