使用okhttp加载服务器数据，Glide加载图片
使用okhttp加载服务器数据，Glide加载图片
- 网项目中导入glide-3.6.1.jar okhttp-3.2.0.jar okio-1.11.0.jar架包；
- GlideCache实现GlideModule类，这个类主要实现的是图片缓存的路劲和缓存的大小
图片缓存类实现
public class GlideCache implements GlideModule{
@Override
public void applyOptions(Context context, GlideBuilder builder) {
// TODO Auto-generated method stub
builder.setDecodeFormat(DecodeFormat.PREFER_RGB_565);
File storageDirectory=Environment.getExternalStorageDirectory();
String download=storageDirectory+ File.separator
+ "文件夹名称" + File.separator;
int cacheSize=100*1000*1000;
builder.setDiskCache(new DiskLruCacheFactory(download, cacheSize));
}
@Override
public void registerComponents(Context arg0, Glide arg1) {
// TODO Auto-generated method stub
}
}3、实现图片缓存的数据后再AndroidManifest.xml文件中进行注册
data
android:name="包名.GlideCache"
android:value="GlideModule"
/> 4、建立一个公共的图片下载工具类，方便下载图片调用
public class ImageLoader {
/**
* 图片下载无缓存
*
* @param context
* 上下文
* @param url
* 图片地址(是gif显示gif文件)
* @param imageView
* 显示图片控件
*/
public static void loadImageNoCache(Context context, String url,
ImageView imageView) {
if (url != null) {
if (url.contains(".gif")) {
Glide.with(context).load(url).asGif()
.diskCacheStrategy(DiskCacheStrategy.NONE)
.into(imageView);
} else {
Glide.with(context).load(url).crossFade()
.diskCacheStrategy(DiskCacheStrategy.NONE)
.into(imageView);
}
}
}
/**
* 图片下载有缓存
*
* @param context
* 上下文
* @param url
* 图片地址(是gif显示gif文件)
* @param imageView
* 显示图片控件
*/
public static void loadImageHaveCache(Context context, String url,
ImageView imageView) {
if (url.contains(".gif")) {
Glide.with(context).load(url).asGif()
.diskCacheStrategy(DiskCacheStrategy.SOURCE)
.into(imageView);
} else {
Glide.with(context).load(url)
.diskCacheStrategy(DiskCacheStrategy.SOURCE)
.into(imageView);
}
}
/**
* 加载资源文件中的图片
*
* @param context
* 上下文
* @param resourseId
* 资源文件ID
* @param imageView
* 显示图片控件
*/
public static void showImage(Context context, int resourseId,
ImageView imageView) {
Glide.with(context).load(resourseId)
.diskCacheStrategy(DiskCacheStrategy.NONE).into(imageView);
}
/**
* 加载资源文件中的图片
*
* @param context
* 上下文
* @param resourseId
* 资源文件ID
* @param imageView
* 显示图片控件
*/
public static void showImageGif(Context context, int resourseId,
ImageView imageView) {
Glide.with(context).load(resourseId).asGif()
.diskCacheStrategy(DiskCacheStrategy.NONE).into(imageView);
}
/**
* 加载资源文件中的图片
*
* @param context
* 上下文
* @param resourseId
* 资源文件ID
* @param imageView
* 显示图片控件
*/
public static void showOneGif(Context context, int resourseId,
ImageView imageView) {
Glide.with(context).load(resourseId).into(imageView);
}
/**
* @param context
* 上下文
* @param url
* 图片地址
* @return 根据地址返回bitmap文件
*/
public static void getBitmap(final Context context, final String url,
final BitmapCallBack callBack) {
Glide.with(context).load(url).asBitmap()
.into(new SimpleTarget() {
@Override
public void onResourceReady(Bitmap bitmap,
@SuppressWarnings("rawtypes") GlideAnimation anim) {
callBack.callback(bitmap);
}
});
}
public interface BitmapCallBack {
void callback(Bitmap bitmap);
}
} 5、建立一个使用okhttp访问服务器的公共的get和post方法
/**
* Created by Administrator on 2017/4/24 0024. 访问服务器基类
*/
public class NetCall {
public static OkHttpClient client;
public static NetCall instance;
public static NetCall getInstance(Context context) {
if (instance == null) {
synchronized (NetCall.class) {
if (instance == null) {
instance = new NetCall(context);
return instance;
}
}
}
return instance;
}
public NetCall(Context context) {
// 设置okhttp框架信任所有证书，访问到https地址
OkHttpClient.Builder build = new OkHttpClient.Builder();
build.sslSocketFactory(createSSLSocketFactory());
build.hostnameVerifier(new TrustAllHostnameVerifier());
client = build.cache(new Cache(context.getCacheDir(), 200))
.connectTimeout(10, TimeUnit.SECONDS)
.readTimeout(10, TimeUnit.SECONDS).build();
}
/**
* 信任所有证书，返回true
*/
private static class TrustAllHostnameVerifier implements HostnameVerifier {
@Override
public boolean verify(String hostname, SSLSession session) {
return true;
}
}
private static SSLSocketFactory createSSLSocketFactory() {
SSLSocketFactory ssl = null;
try {
SSLContext sslContext = SSLContext.getInstance("TLS");
sslContext.init(null, new TrustManager[] { new TrustAllCerts() },
new SecureRandom());
ssl = sslContext.getSocketFactory();
} catch (NoSuchAlgorithmException e) {
e.printStackTrace();
} catch (KeyManagementException e) {
e.printStackTrace();
}
return ssl;
}
private static class TrustAllCerts implements X509TrustManager {
@Override
public void checkClientTrusted(X509Certificate[] chain, String authType)
throws CertificateException {
}
@Override
public void checkServerTrusted(X509Certificate[] chain, String authType)
throws CertificateException {
}
@Override
public X509Certificate[] getAcceptedIssuers() {
return new X509Certificate[0];
}
}
/**
* okhttp GET（）方法访问
*
* @param params
* 访问服务器参数
* @param callBack
* 监听服务器返回数据
*/
public void get(Map params,
final UIReFlashHandle handle) {
StringBuilder stringBuilder = new StringBuilder();
if (params != null && params.size() > 0) {
Set> set = params.entrySet();
for (Map.Entry entry : set) {
stringBuilder.append(entry.getKey());
stringBuilder.append("=");
try {
stringBuilder.append(URLEncoder.encode(entry.getValue(),
"utf-8"));
stringBuilder.append("&");
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
}
stringBuilder.deleteCharAt(stringBuilder.length() - 1);
final Request request = new Request.Builder()
.url(Config.URL + stringBuilder.toString()).get().build();
// 访问接口参数打印
LogUtils.LogURL("访问服务器参数", request.url().toString());
client.newCall(request).enqueue(new Callback() {
@SuppressWarnings("unchecked")
@Override
public void onResponse(Call arg0, Response response)
throws IOException {
if (response.isSuccessful() && handle != null) {
String json = response.body().string();
LogUtils.Log("返回服务器数据", json);
if (!TextUtils.isEmpty(json)) {
try {
JSONObject object = new JSONObject(json);
switch (object.getInt(Config.STATUS)) {
case Config.SUCCESS:
// status==1 获取信息成功
Gson gson = new Gson();
Type type = handle.type;
if (type == String.class) {
Message message = new Message();
message.what = UIReFlashHandle.SUCCESS;
message.obj = (T) json;
handle.sendMessage(message);
} else {
T t = gson.fromJson(json, type);
Message message = new Message();
message.what = UIReFlashHandle.SUCCESS;
message.obj = t;
handle.sendMessage(message);
}
break;
case Config.FAILED:
// status==0 获取失败，提示各种信息
Message message = new Message();
message.what = UIReFlashHandle.FAILED;
message.obj = object.getString(Config.MSG);
handle.sendMessage(message);
break;
default:
break;
}
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
} else {
Message message = new Message();
message.what = UIReFlashHandle.FAILED;
message.obj = "获取信息失败";
handle.sendMessage(message);
}
}
}
@Override
public void onFailure(Call arg0, IOException arg1) {
// TODO Auto-generated method stub
Message message = new Message();
message.what = UIReFlashHandle.NONET;
message.obj = "网络问题";
LogUtils.Log("返回服务器数据", "网络问题");
handle.sendMessage(message);
}
});
}
}
/**
* okhttp POST（）方法访问
*
* @param params
* 访问服务器参数
* @param callBack
* 监听服务器返回数据
* @param
* 返回的数据类型
*/
public void post(Map params,
final UIReFlashHandle handle) {
FormBody.Builder builder = new FormBody.Builder();
if (params != null && params.size() > 0) {
for (String key : params.keySet()) {
builder.add(key, params.get(key));
}
}
final Request request = new Request.Builder().url(Config.URL)
.post(builder.build()).build();
// 访问数据打印
LogUtils.LogURL("访问服务器参数", request.url().toString() + params.toString());
client.newCall(request).enqueue(new Callback() {
@SuppressWarnings("unchecked")
@Override
public void onResponse(Call arg0, Response response)
throws IOException {
if (response.isSuccessful() && handle != null) {
String json = response.body().string();
LogUtils.Log("返回服务器数据", json.toString());
if (!TextUtils.isEmpty(json)) {
try {
JSONObject object = new JSONObject(json);
switch (object.getInt(Config.STATUS)) {
case Config.SUCCESS:
// status==1 获取信息成功
Gson gson = new Gson();
Type type = handle.type;
if (type == String.class) {
Message message = new Message();
message.what = UIReFlashHandle.SUCCESS;
message.obj = (T) json;
handle.sendMessage(message);
} else {
T t = gson.fromJson(json, type);
Message message = new Message();
message.what = UIReFlashHandle.SUCCESS;
message.obj = t;
handle.sendMessage(message);
}
break;
case Config.FAILED:
// status==0 获取失败，提示各种信息
Message message = new Message();
message.what = UIReFlashHandle.FAILED;
message.obj = object.getString(Config.MSG);
handle.sendMessage(message);
break;
default:
break;
}
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
} else {
Message message = new Message();
message.what = UIReFlashHandle.FAILED;
message.obj = "获取用户失败,请重试";
handle.sendMessage(message);
}
}
}
@Override
public void onFailure(Call arg0, IOException arg1) {
// TODO Auto-generated method stub
Message message = new Message();
message.what = UIReFlashHandle.NONET;
message.obj = "网络问题";
handle.sendMessage(message);
}
});
}
}
6、因为okhttp获取服务器的内容不能再主线程中使用，其中的UIReFlashHandle的方法就是建立一个子线程，用于数据显示在页面之中
public class UIReFlashHandle<T> extends Handler {
// 解析数据成功
public static final int SUCCESS = 1;
// 解析数据失败
public static final int FAILED = 0;
// 网络出错
public static final int NONET = -1;
protected MyDataListener listener;
protected Type type;
public UIReFlashHandle(MyDataListener listener, Type type) {
this.listener = listener;
this.type = type;
}
/*
* @param msg
*
* @Descrition:
*/
@SuppressWarnings("unchecked")
@Override
public void handleMessage(Message msg) {
switch (msg.what) {
case SUCCESS:
listener.onSuccess((T) msg.obj);
break;
case FAILED:
listener.onFailed((String) msg.obj);
break;
case NONET:
listener.onErrorNet((String) msg.obj);
break;
default:
break;
}
}
} /**
* @author Administrator
* @param 数据类型
* @time:2017-5-26 下午2:39:09
* @Descrition: 返回数据监听
*/
public interface MyDataListener {
abstract void onErrorNet(String msg);
abstract void onFailed(String msg);
abstract void onSuccess(T t);
} 7、具体的访问服务器数据方法如下
private void GetData() {
HashMaphashMap=new HashMap<>();
hashMap.put("参数", "参数值");
...
NetCall.getInstance(this).get(Select,
new UIReFlashHandle<>(new MyDataListener<返回值解析的基本类>() {
@Override
public void onErrorNet(String msg) {
//无网络时提示信息
}
@Override
public void onFailed(String msg) {
//查询服务器数据出错
}
@Override
public void onSuccess(SelectLinkageBean t) {
//查询服务器数据成功
}
}
}, 返回值解析的基本类.class));
}