网络请求

首先先导包

这里写代码片compile 'com.squareup.retrofit2:retrofit:2.0.1'    compile 'com.google.code.gson:gson:2.8.0'    compile 'com.squareup.okio:okio:1.5.0'    compile 'com.squareup.okhttp3:okhttp:3.2.0'    compile 'io.reactivex:rxandroid:1.1.0'    compile 'com.squareup.retrofit2:adapter-rxjava:2.0.1'    compile 'com.squareup.retrofit2:converter-gson:2.0.1'    compile 'com.squareup.okhttp3:logging-interceptor:3.4.1'

封装

这里写代码片import android.util.Log;import java.util.concurrent.TimeUnit;import okhttp3.OkHttpClient;import okhttp3.logging.HttpLoggingInterceptor;import retrofit2.Retrofit;import retrofit2.adapter.rxjava.RxJavaCallAdapterFactory;import retrofit2.converter.gson.GsonConverterFactory;public class RetrofitUtils {    private static RetrofitUtils retrofitUtils;    private RetrofitUtils(){    }    public static RetrofitUtils getInstance(){        if(retrofitUtils==null){            synchronized (RetrofitUtils.class){                if(retrofitUtils==null){                    retrofitUtils=new RetrofitUtils();                }            }        }        return retrofitUtils;    }    private static Retrofit retrofit;    public static synchronized Retrofit getRetrofit(String url){        HttpLoggingInterceptor httpLoggingInterceptor=new HttpLoggingInterceptor(new HttpLoggingInterceptor.Logger() {            @Override            public void log(String message) {                Log.i("xxx",message);            }        });        httpLoggingInterceptor.setLevel(HttpLoggingInterceptor.Level.BODY);        OkHttpClient okHttpClient=new OkHttpClient.Builder()                .addInterceptor(httpLoggingInterceptor)//拦截器                .connectTimeout(5000, TimeUnit.SECONDS)                .readTimeout(5000,TimeUnit.SECONDS)                .retryOnConnectionFailure(false)                .build();        if(retrofit==null){            retrofit=new Retrofit.Builder().baseUrl(url)                    .client(okHttpClient)                    .addConverterFactory(GsonConverterFactory.create())                    .addCallAdapterFactory(RxJavaCallAdapterFactory.create())                    .build();        }        return retrofit;    }    public <T>T getApiService(String url,Class<T> cl){        Retrofit retrofit = getRetrofit(url);//得到retrofit        return retrofit.create(cl);//返回的就是网络接口对象    }

  Retrofit retrofit = RetrofitUtils.getRetrofit(Api.url);        ApiService apiService = retrofit.create(ApiService.class);        Observable<LeftBean> observable = apiService.getHasParams();        observable.subscribeOn(Schedulers.io())                .observeOn(AndroidSchedulers.mainThread())                .map(new Func1<LeftBean, LeftBean>() {                    @Override                    public LeftBean call(LeftBean leftBean) {                        return leftBean;                    }                }).subscribe(new Subscriber<LeftBean>() {            @Override            public void onCompleted() {            }            @Override            public void onError(Throwable e) {            }            @Override            public void onNext(LeftBean leftBean) {                    iFragment02Model.onSuccess(leftBean);            }        });

图片分割

String images = dataBean.getImages();        String[] imgArr = images.split("!");        Picasso.with(context).load(imgArr[0]).into(myListViewHolder.list_iv);

recyclerview 点击事件

private OnItemListener onItemListener;    public interface OnItemListener{        public void  onItemClick(FenleiZuoBean.DatasBean.ClassListBean bean);    }    public void setonItemListen(OnItemListener onItemListener){        this.onItemListener = onItemListener;    }viewHolder.ll.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View view) {                if(onItemListener != null){                    onItemListener.onItemClick(list.get(position));                }            }        });

视频播放
先导依赖

 compile 'com.github.leifzhang:IjkLib:0.4.3'

布局文件

<tv.danmaku.ijk.media.widget.media.IjkVideoView        android:id="@+id/ijkpayer"        android:layout_width="match_parent"        android:layout_height="300dp"        android:layout_gravity="center"></tv.danmaku.ijk.media.widget.media.IjkVideoView>

代码

  IjkMediaPlayer.loadLibrariesOnce(null);        IjkMediaPlayer.native_profileBegin("libijkplayer.so");        AndroidMediaController controller = new AndroidMediaController(getActivity(), false);        mIjkpayer.setMediaController(controller);        String url = "https://wdl.wallstreetcn.com/41aae4d2-390a-48ff-9230-ee865552e72d";        // String url = "http://o6wf52jln.bkt.clouddn.com/演员.mp3";        mIjkpayer.setVideoURI(Uri.parse(url));        mIjkpayer.start();