Android项目开发所需的基础框架
jopen
9年前
Android项目开发所需的基础框架，包括网络模块、数据库模块、常用的工具类等。目前项目比较简单，会在以后的工作和学习中不断丰富、完善。
package com.daxiang.android.http; import java.util.List; import org.apache.http.NameValuePair; import android.content.Context; import android.content.SharedPreferences; import android.content.SharedPreferences.Editor; import android.text.TextUtils; import com.daxiang.android.bean.BaseRequest; import com.daxiang.android.http.HttpConstants.HttpMethod; import com.daxiang.android.http.core.HttpTool; import com.daxiang.android.utils.Logger; /** * * @author daxiang * * 2015-3-24 */ public class JsonUtil { private static final String TAG = JsonUtil.class.getSimpleName(); public static final String CACHE_JSON_SP = "cache_json_sp"; /** * 从server取数据，不做本地缓存； * * @param url * @param context * @param method * 请求方式 * @param postParameters * post请求参数 * @return */ public static String getJsonFromServer(String url, Context context, HttpMethod method, List<NameValuePair> postParameters) { return getJsonFromServer(url, false, context, method, postParameters); } /** * 从server取数据，可设置是否进行本地存储； * * @param url * @param isCache * true，从服务器取数据并且进行本地存储；false，没有本地存储； * @param context * @param method * 请求方式 * @param postParameters * post请求参数 * @return */ public static String getJsonFromServer(String url, boolean isCache, Context context, HttpMethod method, List<NameValuePair> postParameters) { Logger.i(TAG, "getJsonFromServer---" + url); String json = ""; if (method == HttpConstants.HttpMethod.GET) { json = HttpTool.httpGet(url); } else { json = HttpTool.httpPost(url, postParameters); } Logger.i(TAG, "getJsonFromServer---" + json); if (!TextUtils.isEmpty(json)) { if (isCache) { cacheJsonToFile(url, json, context); } return json; } return ""; } public static String getJsonFromServer(String url, Context context, HttpMethod method, BaseRequest bean) { return getJsonFromServer(url, false, context, method, bean); } public static String getJsonFromServer(String url, boolean isCache, Context context, HttpMethod method, BaseRequest bean) { Logger.i(TAG, "getJsonFromServer---" + url); // 按照约定当state == 200时说明数据正确 String json = ""; if (method == HttpConstants.HttpMethod.GET) { json = HttpTool.httpGet(url); } else if (method == HttpConstants.HttpMethod.POST) { json = HttpTool.httpPost(url, bean); } else if (method == HttpConstants.HttpMethod.DELETE) { json = HttpTool.httpDelete(url, null, bean); } Logger.i(TAG, "getJsonFromServer---" + json); if (!TextUtils.isEmpty(json)) { if (isCache) { cacheJsonToFile(url, json, context); } return json; } return ""; } /** * 从本地缓存文件中取数据； * * @param url * @param context * @return 如果缓存存在且不过期，返回缓存数据，否则返回null； */ public static String getJsonFromFile(String url, Context context) { String result = ACache.get(context).getAsString(url); if (!TextUtils.isEmpty(result)) { return result; } return null; } /** * 从SharedPreferences中取缓存数据； * * @param url * @param context * @return */ public static String getJsonFromSharedPref(String url, Context context) { Logger.i(TAG, "getJsonFromSharedPref---" + url); SharedPreferences sp = context.getSharedPreferences(CACHE_JSON_SP, Context.MODE_PRIVATE); String json = ""; if (sp.contains(url)) { json = sp.getString(url, ""); } return json; } /** * 将Server返回的json字符串缓存到文件； * * @param url * @param json * @param context */ private static void cacheJsonToFile(String url, String json, Context context) { ACache.get(context).put(url, json, ACache.TIME_HOUR); } /** * 将Server返回的Json字符串缓存到本地SharedPreferences中； * * @param url * @param json * @param context */ private static void cacheJsonToSharedPref(String url, String json, Context context) { Logger.i(TAG, "cacheJsonToSharedPref---" + url); SharedPreferences sp = context.getSharedPreferences(CACHE_JSON_SP, Context.MODE_PRIVATE); Editor editor = sp.edit(); editor.putString(url, json); editor.commit(); Logger.i(TAG, "---cache Json to SharedPref end---"); } }