网络连接的判断的封装与 网络获取数据 的封装
2017-10-17 20:33
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//网络连接的判断的封装
package one.bw.com.rikao1017;
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
/**
* Created by Administrator on 2017/10/17/017.
*/
public class NetWorkUtil {
/**
* 这个方法是判断网络状态是否可用的
* @param context
* @return
*/
public static boolean isConn(Context context){
boolean bisConnFlag=false;
//1.获取网络连接的管理对象
ConnectivityManager conManager = (ConnectivityManager)context.getSystemService(Context.CONNECTIVITY_SERVICE);
//2.通过管理者对象拿到网络的信息
NetworkInfo network = conManager.getActiveNetworkInfo();
if(network!=null){
//3.网络状态是否可用的返回值
bisConnFlag=network.isAvailable();
}
return bisConnFlag;
}
/**
* 如果没有网络 弹出dialog对话框,,,是否进入设置网络的页面
* @param context
*/
public static void showNoNetWorkDlg(final Context context) {
AlertDialog.Builder builder = new AlertDialog.Builder(context);
builder.setIcon(R.mipmap.ic_launcher) //
.setTitle("警告") //
.setMessage("当前无网络,是否去设置?").setPositiveButton("设置", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
// 跳转到系统的网络设置界面
Intent intent = null;
// 先判断当前系统版本
if(android.os.Build.VERSION.SDK_INT > 10){ // 3.0以上
intent = new Intent(android.provider.Settings.ACTION_WIRELESS_SETTINGS);
}else{
intent = new Intent();
intent.setClassName("com.android.settings", "com.android.settings.WirelessSettings");
}
context.startActivity(intent);
}
}).setNegativeButton("取消", null).show();
}
}
//接口传值
package one.bw.com.rikao1017;
/**
* Created by Administrator on 2017/10/17/017.
*/
public interface JieKou {
public void chuan(String json);
}
// 网络获取数据 的封装
package one.bw.com.rikao1017;
import android.content.Context;
import android.os.AsyncTask;
import android.util.Log;
import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.SocketTimeoutException;
import java.net.URL;
/**
* Created by Administrator on 2017/10/17/017.
*/
public class NetgetcountUtil {
public static void getcount(final String path, Context context, final JieKou jie){
if(NetWorkUtil.isConn(context)) {
new AsyncTask<Void, Void, String>() {
@Override
protected String doInBackground(Void... voids) {
try {
URL url = new URL(path);
HttpURLConnection connection = (HttpURLConnection) url.openConnection();
connection.setRequestMethod("GET");
connection.setReadTimeout(5000);
connection.setConnectTimeout(5000);
int req = connection.getResponseCode();
if (req == 200) {
InputStream inputStream = connection.getInputStream();
String s = streamToString(inputStream, "utf-8");
Log.i("jiab",s);
return s;
}
} catch (SocketTimeoutException u){
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
@Override
protected void onPostExecute(String s) {
super.onPostExecute(s);
jie.chuan(s);
}
}.execute();
}else{
NetWorkUtil.showNoNetWorkDlg(context);
}
}
//读写操作
private static String streamToString(InputStream inputStream,String charset) {
try {
InputStreamReader inputStreamReader = new InputStreamReader(inputStream,charset);
BufferedReader bufferedReader = new BufferedReader(inputStreamReader);
String s = null;
StringBuilder builder = new StringBuilder();
while ((s = bufferedReader.readLine()) != null){
builder.append(s);
}
bufferedReader.close();
return builder.toString();
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
}
//mainactivity中的逻辑处理,调用
private void getFrist() {
String path="http://www.yulin520.com/a2a/impressApi/news/mergeList?pageSize=10&page=1";
NetgetcountUtil.getcount(path, MainActivity.this, new JieKou() {
@Override
public void chuan(String json) {
Gson gson = new Gson();
Mybean mybean = gson.fromJson(json, Mybean.class);
List<Mybean.DataBean> data = mybean.getData();
dlist.clear();
dlist.addAll(data);
setAtapter();
xlv.stopLoadMore();
Date date = new Date(System.currentTimeMillis());
SimpleDateFormat sim = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
String format = sim.format(date);
xlv.setRefreshTime(format);
list.clear();
for (Mybean.DataBean d:dlist){
list.add(d.getImg());
}
Log.i("jiab",list.toString());
vp.setAdapter(new Mypager(list,MainActivity.this,h));
h.sendEmptyMessageDelayed(0,2000);
initDoc(dlist);
}
});
}
package one.bw.com.rikao1017;
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
/**
* Created by Administrator on 2017/10/17/017.
*/
public class NetWorkUtil {
/**
* 这个方法是判断网络状态是否可用的
* @param context
* @return
*/
public static boolean isConn(Context context){
boolean bisConnFlag=false;
//1.获取网络连接的管理对象
ConnectivityManager conManager = (ConnectivityManager)context.getSystemService(Context.CONNECTIVITY_SERVICE);
//2.通过管理者对象拿到网络的信息
NetworkInfo network = conManager.getActiveNetworkInfo();
if(network!=null){
//3.网络状态是否可用的返回值
bisConnFlag=network.isAvailable();
}
return bisConnFlag;
}
/**
* 如果没有网络 弹出dialog对话框,,,是否进入设置网络的页面
* @param context
*/
public static void showNoNetWorkDlg(final Context context) {
AlertDialog.Builder builder = new AlertDialog.Builder(context);
builder.setIcon(R.mipmap.ic_launcher) //
.setTitle("警告") //
.setMessage("当前无网络,是否去设置?").setPositiveButton("设置", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
// 跳转到系统的网络设置界面
Intent intent = null;
// 先判断当前系统版本
if(android.os.Build.VERSION.SDK_INT > 10){ // 3.0以上
intent = new Intent(android.provider.Settings.ACTION_WIRELESS_SETTINGS);
}else{
intent = new Intent();
intent.setClassName("com.android.settings", "com.android.settings.WirelessSettings");
}
context.startActivity(intent);
}
}).setNegativeButton("取消", null).show();
}
}
//接口传值
package one.bw.com.rikao1017;
/**
* Created by Administrator on 2017/10/17/017.
*/
public interface JieKou {
public void chuan(String json);
}
// 网络获取数据 的封装
package one.bw.com.rikao1017;
import android.content.Context;
import android.os.AsyncTask;
import android.util.Log;
import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.SocketTimeoutException;
import java.net.URL;
/**
* Created by Administrator on 2017/10/17/017.
*/
public class NetgetcountUtil {
public static void getcount(final String path, Context context, final JieKou jie){
if(NetWorkUtil.isConn(context)) {
new AsyncTask<Void, Void, String>() {
@Override
protected String doInBackground(Void... voids) {
try {
URL url = new URL(path);
HttpURLConnection connection = (HttpURLConnection) url.openConnection();
connection.setRequestMethod("GET");
connection.setReadTimeout(5000);
connection.setConnectTimeout(5000);
int req = connection.getResponseCode();
if (req == 200) {
InputStream inputStream = connection.getInputStream();
String s = streamToString(inputStream, "utf-8");
Log.i("jiab",s);
return s;
}
} catch (SocketTimeoutException u){
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
@Override
protected void onPostExecute(String s) {
super.onPostExecute(s);
jie.chuan(s);
}
}.execute();
}else{
NetWorkUtil.showNoNetWorkDlg(context);
}
}
//读写操作
private static String streamToString(InputStream inputStream,String charset) {
try {
InputStreamReader inputStreamReader = new InputStreamReader(inputStream,charset);
BufferedReader bufferedReader = new BufferedReader(inputStreamReader);
String s = null;
StringBuilder builder = new StringBuilder();
while ((s = bufferedReader.readLine()) != null){
builder.append(s);
}
bufferedReader.close();
return builder.toString();
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
}
//mainactivity中的逻辑处理,调用
private void getFrist() {
String path="http://www.yulin520.com/a2a/impressApi/news/mergeList?pageSize=10&page=1";
NetgetcountUtil.getcount(path, MainActivity.this, new JieKou() {
@Override
public void chuan(String json) {
Gson gson = new Gson();
Mybean mybean = gson.fromJson(json, Mybean.class);
List<Mybean.DataBean> data = mybean.getData();
dlist.clear();
dlist.addAll(data);
setAtapter();
xlv.stopLoadMore();
Date date = new Date(System.currentTimeMillis());
SimpleDateFormat sim = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
String format = sim.format(date);
xlv.setRefreshTime(format);
list.clear();
for (Mybean.DataBean d:dlist){
list.add(d.getImg());
}
Log.i("jiab",list.toString());
vp.setAdapter(new Mypager(list,MainActivity.this,h));
h.sendEmptyMessageDelayed(0,2000);
initDoc(dlist);
//轮滑做圆点处理的方法
}
});
}
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