Okhttp+輪播圖（post）
阿新 • • 發佈：2018-12-15
1.許可權
1.1banner
implementation 'com.youth.banner:banner:1.4.10'
1.2.okhttp:
implementation 'com.squareup.okhttp3:okhttp:3.11.0'
implementation 'com.squareup.okhttp3:logging-interceptor:3.11.0'2.OkHttp
package com.bw.ymy.day12rikao; import android.os.Handler; import android.os.Looper; import com.bw.ymy.day12rikao.callback.MyCallBack; import com.google.gson.Gson; import java.io.IOException; import java.util.Map; import java.util.concurrent.TimeUnit; import okhttp3.Call; import okhttp3.Callback; import okhttp3.FormBody; import okhttp3.OkHttpClient; import okhttp3.Request; import okhttp3.RequestBody; import okhttp3.Response; import okhttp3.logging.HttpLoggingInterceptor; public class OkHttpUtils { private static volatile OkHttpUtils okHttpUtils; private OkHttpClient mClient; //handle private Handler handler=new Handler(Looper.getMainLooper()); //第一步,寫一個單例,這裡用的懶漢式,也可以用餓漢式 public static OkHttpUtils getIntance() { if(okHttpUtils==null) { synchronized (OkHttpUtils.class) { if(okHttpUtils==null) { okHttpUtils=new OkHttpUtils(); } } } return okHttpUtils; } //構造方法 private OkHttpUtils() { //日誌攔截器 HttpLoggingInterceptor interceptor=new HttpLoggingInterceptor(); interceptor.setLevel(HttpLoggingInterceptor.Level.BODY); mClient=new OkHttpClient.Builder() .addInterceptor(interceptor) //連線超時 .writeTimeout(10,TimeUnit.SECONDS) //讀取超時 .readTimeout(10,TimeUnit.SECONDS) .connectTimeout(10,TimeUnit.SECONDS) .build(); } //post方法 public void postEnquere(String urlstr, Map<String,String> map, final Class clazz, final MyCallBack myCallBack) { //建立表單 FormBody.Builder builder=new FormBody.Builder(); for (Map.Entry<String,String> map1:map.entrySet()) { builder.add(map1.getKey(),map1.getValue()); } RequestBody body=builder.build(); Request request=new Request.Builder() .post(body) .url(urlstr) .build(); Call call=mClient.newCall(request); call.enqueue(new Callback() { @Override public void onFailure(Call call, final IOException e) { handler.post(new Runnable() { @Override public void run() { myCallBack.onFail(e); } }); } @Override public void onResponse(Call call, Response response) throws IOException { String string1=response.body().string(); Gson gson=new Gson(); final Object o=gson.fromJson(string1,clazz); handler.post(new Runnable() { @Override public void run() { myCallBack.onsuccess(o); } }); } }); } }
3.callback:
package com.bw.ymy.day12rikao.callback;
public interface MyCallBack<T> {
void onsuccess(T data);
void onFail(Exception e);
}
4.M
package com.bw.ymy.day12rikao.model; import com.bw.ymy.day12rikao.callback.MyCallBack; import java.util.Map; public interface IModel { //post void getRequest(String urlstr, Map<String,String> map , Class clazz, MyCallBack callBack); //get } 繼承 package com.bw.ymy.day12rikao.model; import com.bw.ymy.day12rikao.OkHttpUtils; import com.bw.ymy.day12rikao.callback.MyCallBack; import java.util.Map; public class IModeliml implements IModel { //post @Override public void getRequest(String urlstr, Map<String, String> map, Class clazz, final MyCallBack mycallBack) { OkHttpUtils.getIntance().postEnquere(urlstr,map,clazz,new MyCallBack() { @Override public void onsuccess(Object data) { mycallBack.onsuccess(data); } @Override public void onFail(Exception e) { mycallBack.onFail(e); } }); } }
5.V
package com.bw.ymy.day12rikao.view;
public interface IView<T> {
//請求的返回資料
void onsuccess(T data);
void redata(Exception e);
}
6.P
package com.bw.ymy.day12rikao.presenter; import java.util.Map; public interface IPresenter { void getRequest(String urlstr, Map<String,String> map, Class clazz); } 繼承 package com.bw.ymy.day12rikao.presenter; import com.bw.ymy.day12rikao.callback.MyCallBack; import com.bw.ymy.day12rikao.model.IModel; import com.bw.ymy.day12rikao.model.IModeliml; import com.bw.ymy.day12rikao.view.IView; import java.util.Map; public class IPresenteriml implements IPresenter { private IView miview; private IModeliml iModeliml; public IPresenteriml(IView miview) { this.miview = miview; iModeliml=new IModeliml(); } @Override public void getRequest(String urlstr, Map<String, String> map, Class clazz) { iModeliml.getRequest(urlstr, map, clazz, new MyCallBack() { @Override public void onsuccess(Object data) { miview.onsuccess(data); } @Override public void onFail(Exception e) { miview.redata(e); } }); } public void detach() { if(miview!=null) { miview=null; } if(iModeliml!=null) { iModeliml=null; } } }
7.App
package com.bw.ymy.day12rikao;
import android.app.Application;
import android.graphics.Bitmap;
import com.nostra13.universalimageloader.core.DisplayImageOptions;
import com.nostra13.universalimageloader.core.ImageLoader;
import com.nostra13.universalimageloader.core.ImageLoaderConfiguration;
public class App extends Application {
@Override
public void onCreate() {
super.onCreate();
ImageLoader.getInstance().init(new ImageLoaderConfiguration.Builder(this)
.memoryCacheSizePercentage(50)
.diskCacheSize(50*1024*1024)
.defaultDisplayImageOptions(new DisplayImageOptions.Builder()
.bitmapConfig(Bitmap.Config.RGB_565)
.cacheOnDisk(true)
.cacheInMemory(true)
.showImageOnLoading(R.mipmap.ic_launcher)
.showImageOnFail(R.mipmap.ic_launcher)
.showImageForEmptyUri(R.mipmap.ic_launcher)
.build())
.build());
}
}
8.主頁面
package com.bw.ymy.day12rikao;
import android.content.Context;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.ImageView;
import com.bw.ymy.day12rikao.Bean.UserBean;
import com.bw.ymy.day12rikao.presenter.IPresenteriml;
import com.bw.ymy.day12rikao.view.IView;
import com.youth.banner.Banner;
import com.youth.banner.BannerConfig;
import com.youth.banner.loader.ImageLoader;
import com.youth.banner.loader.ImageLoaderInterface;
import java.util.HashMap;
import java.util.Map;
import me.maxwin.view.XListView;
public class MainActivity extends AppCompatActivity implements IView {
private Banner banner;
IPresenteriml iPresenteriml;
private XListView xListView;
private MyBase adapter;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
iPresenteriml=new IPresenteriml(this);
banner=findViewById(R.id.banner);
xListView=findViewById(R.id.xlistview);
adapter=new MyBase(this);
xListView.setAdapter(adapter);
banner.setBannerStyle(BannerConfig.CIRCLE_INDICATOR);
banner.setImageLoader(new ImageLoaderInterface<ImageView>() {
@Override
public void displayImage(Context context, Object path, ImageView imageView) {
UserBean.DataBean userBean= (UserBean.DataBean) path;
//String replace=userBean.getIcon().replace("https","http");
com.nostra13.universalimageloader.core.ImageLoader.getInstance().displayImage(userBean.replace(),imageView);
}
@Override
public ImageView createImageView(Context context) {
ImageView imageView=new ImageView(context);
imageView.setScaleType(ImageView.ScaleType.CENTER_INSIDE);
return imageView;
}
});
Map<String,String> map=new HashMap<>();
map.put("type","0");
iPresenteriml.getRequest("http://www.zhaoapi.cn/ad/getAd",map,UserBean.class);
}
@Override
public void onsuccess(Object data) {
UserBean userBean= (UserBean) data;
banner.setImages(userBean.getData());
banner.start();
adapter.setlist(userBean.getData());
}
@Override
public void redata(Exception e) {
}
}