OkHttp获取数据，xlistview显示popwod弹框

来源：互联网发布：拳皇苍龙知乎编辑：程序博客网时间：2024/06/08 14:50

1，先一步设置xlistview类，布局，

2，导入依赖，价包，注意版本问题

1，Gson价包和imageloader价包必须加入，否则无法导包。

   compile files('libs/universal-image-loader-1.9.3-with-sources.jar')   compile files('libs/gson-2.2.4.jar')   compile 'com.squareup.okhttp3:okhttp:3.9.0'

3. 封装类的实现

4，MainActivity的构造

   public class MainActivity extends AppCompatActivity implements XListView.IXListViewListener {    private XListView xListView;    private MyAdapter adapter;    private List<Bean.DataBean> data;    private Bean.TipsBean tips;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        xListView = (XListView) findViewById(R.id.xlv);        xListView.setPullLoadEnable(true);        xListView.setPullRefreshEnable(true);        xListView.setXListViewListener(this);        //创建okHttpClient对象        OkHttpClient mOkHttpClient = new OkHttpClient();        //创建一个Request        final Request request = new Request.Builder()                .url("http://ic.snssdk.com/2/article/v25/stream/?" +                        "category=news_car&count=20&bd_city=北京市" +                        "&bd_latitude=40.049317&bd_longitude=116.296499&bd_loc_time=1455522784&loc_mode=5&lac=4527&cid=28883" +                        "&iid=3642583580&device_id=11131669133&ac=wifi&channel=baidu&aid=13" +                        "&app_name=news_article&version_code=460&device_platform=android&device_type=SCH-I919U" +                        "&os_api=19&os_version=4.4.2&uuid=285592931621751&openudid=AC9E172CE2490000")                .build();        //new call        Call call = mOkHttpClient.newCall(request);        //请求加入调度        call.enqueue(new Callback() {            @Override            public void onFailure(Call call, IOException e) {            }            @Override            public void onResponse(Call call, Response response) throws IOException {                final String string = response.body().string();                //子线程操作ui                runOnUiThread(new Runnable() {                    @Override                    public void run() {                        Bean bean = new Gson().fromJson(string, Bean.class);                        if (bean != null) {                            data = bean.getData();                            tips = bean.getTips();                            Log.e("======", "===" + data);                            adapter = new MyAdapter(MainActivity.this);                            adapter.addData(data);                            xListView.setAdapter(adapter);                        }                    }                });            }        });        xListView.setOnItemClickListener(new AdapterView.OnItemClickListener() {            @Override            public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) {                Intent intent = new Intent(MainActivity.this, InfoActivity.class);                intent.putExtra("weburl", data.get(i-1).getShare_url());                startActivity(intent);            }        });    }    @Override    public void onRefresh() {        adapter.updateData(data);        xListView.stopRefresh();    }    @Override    public void onLoadMore() {        adapter.addData(data);        xListView.stopLoadMore();    }}

4.Adapter类实现。注意数组越界。

public class MyAdapter extends BaseAdapter {    List<Bean.DataBean> list = new ArrayList<>();    Context context;    private final ImageLoader loader;    private final DisplayImageOptions options;    private Button mButton;    private PopupWindow mPopupWindow;    public MyAdapter(Context context) {        this.context = context;        ImageLoaderConfiguration configuration = ImageLoaderConfiguration.createDefault(context);        loader = ImageLoader.getInstance();        loader.init(configuration);        options = new DisplayImageOptions.Builder()                .showImageOnLoading(R.drawable.ic_stub)                .showImageForEmptyUri(R.drawable.error)                .showImageOnFail(R.drawable.ic_error)                .displayer(new RoundedBitmapDisplayer(150))                .build();    }    //添加数据    public void addData(List<Bean.DataBean> list) {        this.list.addAll(list);        notifyDataSetChanged();    }    //更新数据    public void updateData(List<Bean.DataBean> list) {        this.list.clear();        addData(list);    }    @Override    public int getCount() {        return list.size();    }    @Override    public Object getItem(int i) {        return list.get(i);    }    @Override    public long getItemId(int i) {        return i;    }    //获取item布局    @Override    public View getView(final int i, View view, ViewGroup viewGroup) {        ViewHolder holder = null;        if (view == null) {            view = View.inflate(context, R.layout.xlist_item, null);            holder = new ViewHolder(view);            view.setTag(holder);        } else {            holder = (ViewHolder) view.getTag();        }        Bean.DataBean dataBean = list.get(i);        holder.tv_title.setText(dataBean.getTitle());        holder.tv_source.setText(dataBean.getSource());        holder.tv_x.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View view) {                View popupView = View.inflate(context, R.layout.pop_item, null);                mPopupWindow = new PopupWindow(popupView, ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT, true);                mPopupWindow.setOutsideTouchable(true);                mPopupWindow.setBackgroundDrawable(new BitmapDrawable());                mPopupWindow.showAsDropDown(view, 0, 0);                popupView.findViewById(R.id.tv_dislike).setOnClickListener(new View.OnClickListener() {                    @Override                    public void onClick(View view) {                        list.remove(i);                        notifyDataSetChanged();                        mPopupWindow.dismiss();                    }                });            }        });        loader.displayImage(dataBean.getUser_info().getAvatar_url(), holder.iv, options);        return view;    }    //优化类    public static class ViewHolder {        View rootView;        TextView tv_title, tv_source, tv_x;        ImageView iv;        public ViewHolder(View rootView) {            this.rootView = rootView;            this.tv_title = (TextView) rootView.findViewById(R.id.tv_title);            this.tv_source = (TextView) rootView.findViewById(R.id.tv_source);            this.tv_x = (TextView) rootView.findViewById(R.id.tv_x);            this.iv = (ImageView) rootView.findViewById(R.id.iv);        }    }}5.跳转页面的显示webview 传值。public class InfoActivity extends AppCompatActivity {    private WebView wv;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_info);        wv = (WebView) findViewById(R.id.wv);        wv.getSettings().setJavaScriptEnabled(true);        wv.setWebChromeClient(new WebChromeClient());        wv.setWebViewClient(new WebViewClient() {            @Override            public boolean shouldOverrideUrlLoading(WebView view, String url) {                wv.loadUrl(url);                return true;            }-        });        wv.loadUrl(getIntent().getStringExtra("weburl"));    }}
 6.重要布局的格局创建pop_item。
     <?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:background="#000"    android:id="@+id/ll"    android:orientation="horizontal"    android:padding="16dp">    <TextView        android:layout_width="0dp"        android:layout_height="wrap_content"        android:layout_marginRight="20dp"        android:layout_weight="1"        android:gravity="center"        android:text="读文章"        android:textColor="#fff"        android:textSize="14sp" />    <TextView        android:layout_width="0dp"        android:layout_height="wrap_content"        android:layout_marginRight="20dp"        android:layout_weight="1"        android:gravity="center"        android:text="收藏"        android:textColor="#fff"        android:textSize="14sp" />    <TextView        android:id="@+id/tv_dislike"        android:layout_width="0dp"        android:layout_height="wrap_content"        android:layout_marginRight="20dp"        android:layout_weight="1"        android:gravity="center"        android:text="不感兴趣"        android:textColor="#fff"        android:textSize="14sp" /></LinearLayout>
7.xlist_item的布局布置。
   <LinearLayout    android:layout_width="match_parent"    android:layout_height="150dp"    android:layout_toLeftOf="@+id/iv"    android:orientation="vertical">    <TextView        android:id="@+id/tv_title"        android:layout_width="match_parent"        android:layout_height="0dp"        android:layout_weight="1"        android:gravity="center_vertical"        android:text="标题1"        android:textSize="24sp" />    <RelativeLayout        android:layout_width="match_parent"        android:layout_height="0dp"        android:layout_weight="1">        <TextView            android:id="@+id/tv_source"            android:layout_width="match_parent"            android:layout_height="match_parent"            android:gravity="center_vertical"            android:text="标题1"            android:textSize="22sp" />        <TextView            android:id="@+id/tv_x"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:layout_alignParentBottom="true"            android:layout_alignParentRight="true"            android:layout_margin="10dp"            android:text="X" />    </RelativeLayout></LinearLayout><ImageView    android:id="@+id/iv"    android:layout_width="150dp"    android:layout_height="150dp"    android:layout_alignParentRight="true"    android:src="@mipmap/ic_launcher" />

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