Android网络请求解析以及JSON文本

package com.example.outlier.prictace_1.HomePage.Search.CycleView; /** * Created by outlier on 2017/7/14. */ import java.util.ArrayList; import java.util.List; import android.annotation.SuppressLint; import android.app.Fragment; import android.os.Bundle; import android.os.Message; import android.support.v4.view.PagerAdapter; import android.support.v4.view.ViewPager.OnPageChangeListener; import android.view.LayoutInflater; import android.view.View; import android.view.View.OnClickListener; import android.view.ViewGroup; import android.widget.FrameLayout; import android.widget.ImageView; import android.widget.LinearLayout; import android.widget.RelativeLayout; import com.example.outlier.prictace_1.R; /** * 实现可循环，可轮播的viewpager */ @SuppressLint("NewApi") public class CycleViewPager extends Fragment implements OnPageChangeListener { private List<ImageView> imageViews = new ArrayList<ImageView>(); private ImageView[] indicators; private FrameLayout viewPagerFragmentLayout; private LinearLayout indicatorLayout; // 指示器 private BaseViewPager viewPager; private BaseViewPager parentViewPager; private ViewPagerAdapter adapter; private CycleViewPagerHandler handler; private int time = 5000; // 默认轮播时间 private int currentPosition = 0; // 轮播当前位置 private boolean isScrolling = false; // 滚动框是否滚动着 private boolean isCycle = false; // 是否循环 private boolean isWheel = false; // 是否轮播 private long releaseTime = 0; // 手指松开、页面不滚动时间，防止手机松开后短时间进行切换 private int WHEEL = 100; // 转动 private int WHEEL_WAIT = 101; // 等待 private ImageCycleViewListener mImageCycleViewListener; private List<ADInfo> infos; @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { View view = LayoutInflater.from(getActivity()).inflate( R.layout.view_cycle_viewpager_contet, null); viewPager = (BaseViewPager) view.findViewById(R.id.viewPager); indicatorLayout = (LinearLayout) view .findViewById(R.id.layout_viewpager_indicator); viewPagerFragmentLayout = (FrameLayout) view .findViewById(R.id.layout_viewager_content); handler = new CycleViewPagerHandler(getActivity()) { @Override public void handleMessage(Message msg) { super.handleMessage(msg); if (msg.what == WHEEL && imageViews.size() != 0) { if (!isScrolling) { int max = imageViews.size() + 1; int position = (currentPosition + 1) % imageViews.size(); viewPager.setCurrentItem(position, true); if (position == max) { // 最后一页时回到第一页 viewPager.setCurrentItem(1, false); } } releaseTime = System.currentTimeMillis(); handler.removeCallbacks(runnable); handler.postDelayed(runnable, time); return; } if (msg.what == WHEEL_WAIT && imageViews.size() != 0) { handler.removeCallbacks(runnable); handler.postDelayed(runnable, time); } } }; return view; } public void setData(List<ImageView> views, List<ADInfo> list, ImageCycleViewListener listener) { setData(views, list, listener, 0); } /** * 初始化viewpager * * @param views * 要显示的views * @param showPosition * 默认显示位置 */ public void setData(List<ImageView> views, List<ADInfo> list, ImageCycleViewListener listener, int showPosition) { mImageCycleViewListener = listener; infos = list; this.imageViews.clear(); if (views.size() == 0) { viewPagerFragmentLayout.setVisibility(View.GONE); return; } for (ImageView item : views) { this.imageViews.add(item); } int ivSize = views.size(); // 设置指示器 indicators = new ImageView[ivSize]; if (isCycle) indicators = new ImageView[ivSize - 2]; indicatorLayout.removeAllViews(); for (int i = 0; i < indicators.length; i++) { View view = LayoutInflater.from(getActivity()).inflate( R.layout.view_cycle_viewpager_indicator, null); indicators[i] = (ImageView) view.findViewById(R.id.image_indicator); indicatorLayout.addView(view); } adapter = new ViewPagerAdapter(); // 默认指向第一项，下方viewPager.setCurrentItem将触发重新计算指示器指向 setIndicator(0); viewPager.setOffscreenPageLimit(3); viewPager.setOnPageChangeListener(this); viewPager.setAdapter(adapter); if (showPosition < 0 || showPosition >= views.size()) showPosition = 0; if (isCycle) { showPosition = showPosition + 1; } viewPager.setCurrentItem(showPosition); } /** * 设置指示器居中，默认指示器在右方 */ public void setIndicatorCenter() { RelativeLayout.LayoutParams params = new RelativeLayout.LayoutParams( RelativeLayout.LayoutParams.WRAP_CONTENT, RelativeLayout.LayoutParams.WRAP_CONTENT); params.addRule(RelativeLayout.ALIGN_PARENT_BOTTOM); params.addRule(RelativeLayout.CENTER_HORIZONTAL); indicatorLayout.setLayoutParams(params); } /** * 是否循环，默认不开启，开启前，请将views的最前面与最后面各加入一个视图，用于循环 * * @param isCycle * 是否循环 */ public void setCycle(boolean isCycle) { this.isCycle = isCycle; } /** * 是否处于循环状态 * * @return */ public boolean isCycle() { return isCycle; } /** * 设置是否轮播，默认不轮播,轮播一定是循环的 * * @param isWheel */ public void setWheel(boolean isWheel) { this.isWheel = isWheel; isCycle = true; if (isWheel) { handler.postDelayed(runnable, time); } } /** * 是否处于轮播状态 * * @return */ public boolean isWheel() { return isWheel; } final Runnable runnable = new Runnable() { @Override public void run() { if (getActivity() != null && !getActivity().isFinishing() && isWheel) { long now = System.currentTimeMillis(); // 检测上一次滑动时间与本次之间是否有触击(手滑动)操作，有的话等待下次轮播 if (now - releaseTime > time - 500) { handler.sendEmptyMessage(WHEEL); } else { handler.sendEmptyMessage(WHEEL_WAIT); } } } }; /** * 释放指示器高度，可能由于之前指示器被限制了高度，此处释放 */ public void releaseHeight() { getView().getLayoutParams().height = RelativeLayout.LayoutParams.MATCH_PARENT; refreshData(); } /** * 设置轮播暂停时间，即没多少秒切换到下一张视图.默认5000ms * * @param time * 毫秒为单位 */ public void setTime(int time) { this.time = time; } /** * 刷新数据，当外部视图更新后，通知刷新数据 */ public void refreshData() { if (adapter != null) adapter.notifyDataSetChange