RecyclerView+Oktthp网络请求+全局异常

MainActivity类

import android.graphics.Color;
import android.os.Bundle;
import android.os.SystemClock;
import android.support.v4.widget.SwipeRefreshLayout;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.util.Log;
import android.view.View;
import android.widget.ProgressBar;
import android.widget.Toast;

import com.google.gson.Gson;

import java.io.IOException;
import java.util.List;

import okhttp3.Call;
import okhttp3.Callback;
import okhttp3.OkHttpClient;
import okhttp3.Request;
import okhttp3.Response;

public class MainActivity extends AppCompatActivity implements SwipeRefreshLayout.OnRefreshListener {
    private SwipeRefreshLayout swipe;
    private RecyclerView recyclerView;
    private LinearLayoutManager linearLayoutManager;
    private RecyleAdapter recyleAdapter;
    private ProgressBar pro;
    private boolean isRefresh=true;
    private List<Bean.ResultBean.DataBean> list;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        initview();
        initData();
    }
    private void initData() {
        swipe = (SwipeRefreshLayout) findViewById(R.id.swipe);
        pro = (ProgressBar) findViewById(R.id.pro);
        recyclerView = (RecyclerView) findViewById(R.id.recy);
        recyleAdapter = new RecyleAdapter(this);
        linearLayoutManager = new LinearLayoutManager(this, LinearLayoutManager.VERTICAL, false);
        recyclerView.setLayoutManager(linearLayoutManager);
        recyclerView.setAdapter(recyleAdapter);


        recyleAdapter.setOnClick(new RecyleAdapter.onClick() {
            @Override
            public void onCli(View v, int position) {
                Toast.makeText(MainActivity.this,"点击了"+position,Toast.LENGTH_LONG).show();
            }
        });




        swipe.setEnabled(true);
        swipe.setOnRefreshListener(this);
        swipe.setColorSchemeColors(Color.BLUE,Color.RED,Color.GREEN);

        final boolean[] isLoadMore = {false};
        recyclerView.addOnScrollListener(new RecyclerView.OnScrollListener() {
            @Override
            public void onScrollStateChanged(RecyclerView recyclerView, int newState) {
                super.onScrollStateChanged(recyclerView, newState);
            }

            @Override
            public void onScrolled(final RecyclerView recyclerView, int dx, int dy) {
                super.onScrolled(recyclerView, dx, dy);
                if (dy>0) {
                    int lastVisibleItemPosition = linearLayoutManager.findLastVisibleItemPosition();
                    int itemCount = linearLayoutManager.getItemCount();
                    if (lastVisibleItemPosition + 1 == itemCount && !isLoadMore[0]) {
                        isLoadMore[0] = true;
                        pro.setVisibility(View.VISIBLE);
                        new Thread() {
                            @Override
                            public void run() {
                                super.run();
                                SystemClock.sleep(5000);
                                isRefresh=false;

                                recyleAdapter.setData(list.subList(0,30),isRefresh);
                                runOnUiThread(new Runnable() {
                                    @Override
                                    public void run() {
                                        isLoadMore[0] = false;

                                        Toast.makeText(MainActivity.this,list.size() +"" ,Toast.LENGTH_SHORT).show();

                                        recyleAdapter.notifyDataSetChanged();
                                        pro.setVisibility(View.GONE);
                                    }
                                });
                            }
                        }.start();
                    }
                }
            }
        });
    }

    private void initview() {

        OkHttpClient okHttpClient = new OkHttpClient();
        Request request = new Request.Builder().url("http://result.eolinker.com/k2BaduF2a6caa275f395919a66ab1dfe4b584cc60685573?uri=gj").build();
        Call call = okHttpClient.newCall(request);
        call.enqueue(new Callback() {
            @Override
            public void onFailure(Call call, IOException e) {

            }

            @Override
            public void onResponse(Call call, Response response) throws IOException {
                if (response.code() == 200) {
                    String str = response.body().string();
                    Log.d("haha",""+str);
                    Gson gson = new Gson();
                    Bean bean = gson.fromJson(str, Bean.class);
                    list = bean.result.data;


                    runOnUiThread(new Runnable() {
                        @Override
                        public void run() {

                            isRefresh=true;
                            recyleAdapter.setData(list,isRefresh);
                            recyleAdapter.notifyDataSetChanged();
                            swipe.setRefreshing(false);                        }
                    });

                } else {
                    Log.d("myMessage", "" + response.message());
                }
            }
        });


    }

    @Override
    public void onRefresh() {
        initview();
    }


}

适配器

import android.content.Context;
import android.support.v7.widget.RecyclerView;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.TextView;

import java.util.ArrayList;
import java.util.List;


public class RecyleAdapter  extends RecyclerView.Adapter {
    private List<Bean.ResultBean.DataBean> list=new ArrayList<>();
    private Context mcontext;
    public RecyleAdapter (Context context){
        this.mcontext=context;
    }
    public void setData(List<Bean.ResultBean.DataBean> data,boolean isRefresh){
        if (isRefresh){
            this.list=data;
        }else{
            this.list.addAll(data);
        }
    }

    @Override
    public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        View view = View.inflate(mcontext, R.layout.home_item, null);
        MyHolderView myHolderView = new MyHolderView(view);
        return myHolderView;
    }

    @Override
    public void onBindViewHolder(RecyclerView.ViewHolder holder, final int position) {
        MyHolderView my= (MyHolderView) holder;
        my.textView.setText(list.get(position).title);
        my.textView.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                monClick.onCli(v,position);
            }
        });
    }

    @Override
    public int getItemCount() {
        return list!=null ?list.size():0;
    }
    class MyHolderView extends RecyclerView.ViewHolder{

        private final ImageView imageView;
        private final TextView textView;

        public MyHolderView(View itemView) {
            super(itemView);
            imageView = (ImageView) itemView.findViewById(R.id.imageView);
            textView = (TextView) itemView.findViewById(R.id.textView);
        }
    }

    public interface onClick{
        void onCli(View v,int position);
    }
    private onClick monClick;
    public void setOnClick(onClick onClick){
        this.monClick=onClick;
    }

}



activity的布局文件

<android.support.v4.widget.SwipeRefreshLayout
      android:id="@+id/swipe"
      android:layout_width="match_parent"
      android:layout_height="match_parent">
<android.support.v7.widget.RecyclerView
    android:id="@+id/recy"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content">

</android.support.v7.widget.RecyclerView>






  </android.support.v4.widget.SwipeRefreshLayout>
    <ProgressBar
        android:visibility="gone"
        android:layout_centerHorizontal="true"
        android:layout_alignParentBottom="true"
        android:id="@+id/pro"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />





 全局捕获异常
public class CrashApplication extends Application {
    @Override
    public void onCreate() {
        super.onCreate();
        CrashHandler crashHandler = CrashHandler.getInstance();
        crashHandler.init(getApplicationContext());
    }
}

public class CrashHandler implements UncaughtExceptionHandler {

    public static final String TAG = "CrashHandler";

    //系统默认的UncaughtException处理类
    private Thread.UncaughtExceptionHandler mDefaultHandler;
    //CrashHandler实例
    private static CrashHandler INSTANCE = new CrashHandler();
    //程序的Context对象
    private Context mContext;
    //用来存储设备信息和异常信息
    private Map<String, String> infos = new HashMap<String, String>();

    //用于格式化日期,作为日志文件名的一部分
    private DateFormat formatter = new SimpleDateFormat("yyyy-MM-dd-HH-mm-ss");

    /** 保证只有一个CrashHandler实例 */
    private CrashHandler() {
    }

    /** 获取CrashHandler实例 ,单例模式 */
    public static CrashHandler getInstance() {
        return INSTANCE;
    }

    /**
     * 初始化
     *
     * @param context
     */
    public void init(Context context) {
        mContext = context;
        //获取系统默认的UncaughtException处理器
        mDefaultHandler = Thread.getDefaultUncaughtExceptionHandler();
        //设置该CrashHandler为程序的默认处理器
        Thread.setDefaultUncaughtExceptionHandler(this);
    }

    /**
     * 当UncaughtException发生时会转入该函数来处理
     */
    @Override
    public void uncaughtException(Thread thread, Throwable ex) {
        if (!handleException(ex) && mDefaultHandler != null) {
            //如果用户没有处理则让系统默认的异常处理器来处理
            mDefaultHandler.uncaughtException(thread, ex);
        } else {
            try {
                Thread.sleep(3000);
            } catch (InterruptedException e) {
                Log.e(TAG, "error : ", e);
            }
            //退出程序
            android.os.Process.killProcess(android.os.Process.myPid());
            System.exit(1);
        }
    }

    /**
     * 自定义错误处理,收集错误信息 发送错误报告等操作均在此完成.
     *
     * @param ex
     * @return true:如果处理了该异常信息;否则返回false.
     */
    private boolean handleException(Throwable ex) {
        if (ex == null) {
            return false;
        }
        //使用Toast来显示异常信息
        new Thread() {
            @Override
            public void run() {
                Looper.prepare();
                Toast.makeText(mContext, "很抱歉,程序出现异常,即将退出.", Toast.LENGTH_LONG).show();
                Looper.loop();
            }
        }.start();
        //收集设备参数信息
        collectDeviceInfo(mContext);
        //保存日志文件
        saveCrashInfo2File(ex);
        return true;
    }

    /**
     * 收集设备参数信息
     * @param ctx
     */
    public void collectDeviceInfo(Context ctx) {
        try {
            PackageManager pm = ctx.getPackageManager();
            PackageInfo pi = pm.getPackageInfo(ctx.getPackageName(), PackageManager.GET_ACTIVITIES);
            if (pi != null) {
                String versionName = pi.versionName == null ? "null" : pi.versionName;
                String versionCode = pi.versionCode + "";
                infos.put("versionName", versionName);
                infos.put("versionCode", versionCode);
            }
        } catch (PackageManager.NameNotFoundException e) {
            Log.e(TAG, "an error occured when collect package info", e);
        }
        Field[] fields = Build.class.getDeclaredFields();
        for (Field field : fields) {
            try {
                field.setAccessible(true);
                infos.put(field.getName(), field.get(null).toString());
                Log.d(TAG, field.getName() + " : " + field.get(null));
            } catch (Exception e) {
                Log.e(TAG, "an error occured when collect crash info", e);
            }
        }
    }

    /**
     * 保存错误信息到文件中
     *
     * @param ex
     * @return  返回文件名称,便于将文件传送到服务器
     */
    private String saveCrashInfo2File(Throwable ex) {

        StringBuffer sb = new StringBuffer();
        for (Map.Entry<String, String> entry : infos.entrySet()) {
            String key = entry.getKey();
            String value = entry.getValue();
            sb.append(key + "=" + value + "\n");
        }

        Writer writer = new StringWriter();
        PrintWriter printWriter = new PrintWriter(writer);
        ex.printStackTrace(printWriter);
        Throwable cause = ex.getCause();
        while (cause != null) {
            cause.printStackTrace(printWriter);
            cause = cause.getCause();
        }
        printWriter.close();
        String result = writer.toString();
        sb.append(result);
        try {
            long timestamp = System.currentTimeMillis();
            String time = formatter.format(new Date());
            String fileName = "crash-" + time + "-" + timestamp + ".log";
            if (Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) {
                String path = "/sdcard/crash/";
                File dir = new File(path);
                if (!dir.exists()) {
                    dir.mkdirs();
                }
                FileOutputStream fos = new FileOutputStream(path + fileName);
                fos.write(sb.toString().getBytes());
                fos.close();
            }
            return fileName;
        } catch (Exception e) {
            Log.e(TAG, "an error occured while writing file...", e);
        }
        return null;
    }
}