第六节总结

总结

这一章主要实现微信精选模块的功能，也是调用接口解析json，跳页面，传值，实现webView。。。嗯  就这些！！！

实现BaseAdapter作为ListView的Adapter

不多比比，贴代码吧

public class wxAdapter extends BaseAdapter {

    private Context mContext;
    private LayoutInflater inflater;
    private weinxinData data;
    private List<weinxinData> mlist;
    public TextView title;
    public TextView weixinname;

    public wxAdapter(Context mContext,  List<weinxinData> mlist) {
        this.mContext = mContext;
        inflater = (LayoutInflater) mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        this.mlist = mlist;
        }
    }
    @Override
    public int getCount() {
        return mlist.size();
    }

    @Override
    public Object getItem(int position) {
        return mlist.get(position);
    }

    @Override
    public long getItemId(int position) {
        return position;
    }
        @Override
        public View getView(int position, View convertView, ViewGroup parent) {
        viewHolder viewHolder = null;
        if (convertView==null){
            viewHolder=new viewHolder();
            convertView=inflater.inflate(R.layout.weixin_item,null);
            viewHolder.title= (TextView) convertView.findViewById(R.id.weixin_item_title_tv);
            viewHolder.weixinname=(TextView)convertView.findViewById(R.id.weixin_item_weixinname_tv);
            convertView.setTag(viewHolder);

        }else {
            viewHolder= (com.example.myapplication.entity.viewHolder) convertView.getTag();
        }
        weinxinData data=mlist.get(position);
        viewHolder.title.setText(data.getTitle());
        viewHolder.weixinname.setText(data.getWeixinname());
        return convertView;
    }
}

使用的viewHolder

public class viewHolder {
    public TextView title;
    public TextView weixinname;
}

Fragment中实现逻辑

public class wxFragment extends Fragment {

    private ListView mlistView;
    private List<weinxinData> mlist;
    private List<String> mtitle;
    private List<String> murl;
    //数据接口
    private String url="http://api.jisuapi.com/weixinarticle/get?channelid=1&start=0&num=10&appkey=c7b6a14799a0d2a9";

    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, Bundle savedInstanceState) {
        View view = inflater.inflate(R.layout.weixinlayout, container, false);
        findView(view);
        return view;

    }

    private void findView(View view) {
        mlistView= (ListView) view.findViewById(R.id.weixin_listVIew);
        mlist=new ArrayList<>();
        mtitle=new ArrayList<>();
        murl=new ArrayList<>();
        RxVolley.get(url, new HttpCallback() {
            @Override
            public void onSuccess(String t) {
                super.onSuccess(t);
                prasingUrl(t);
            }

        });
        //ListView的一条的点击事件
        mlistView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
                //传值跳页面
                Intent intent=new Intent(getActivity(),webViewActity.class);
                intent.putExtra("title",mtitle.get(position));
                intent.putExtra("url",murl.get(position));
                startActivity(intent);

            }
        });
    }

//解析JSON
    private void prasingUrl(String t) {
        try {
            JSONObject jsonObject=new JSONObject(t);
            JSONObject jsonResult=jsonObject.getJSONObject("result");
            JSONArray jsonArray=jsonResult.getJSONArray("list");
            for (int i = 0; i <jsonArray.length() ; i++) {
                JSONObject jsonObject1=jsonArray.getJSONObject(i);
                String Stitle=jsonObject1.getString("title");
                String URL=jsonObject1.getString("url");
                String Sweixinname=jsonObject1.getString("weixinname");
                L.i("title:"+Stitle+Sweixinname);
                weinxinData data = new weinxinData(Stitle,Sweixinname);
                mlist.add(data);
                mtitle.add(Stitle);
                murl.add(URL);
            }
            wxAdapter weixinAdapter=new wxAdapter(getActivity(),mlist);
            mlistView.setAdapter(weixinAdapter);
        } catch (JSONException e) {
            e.printStackTrace();
        }
    }
}

WebView实现加载

public class webViewActity extends BaseActivity {
    private WebView mWebView;
    public ProgressBar mProgressBar;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.web);
        initView();
    }

    private void initView() {
        mWebView= (WebView) findViewById(R.id.mWebView);
        mProgressBar= (ProgressBar) findViewById(R.id.mProgress);
        Intent intent=getIntent();
        final String title=intent.getStringExtra("title");
        final String url=intent.getStringExtra("url");

        //设置标题
        getSupportActionBar().setTitle(title);

        //进行加载网页的逻辑

        //支持JS
        mWebView.getSettings().setJavaScriptEnabled(true);
        //支持缩放
        mWebView.getSettings().setSupportZoom(true);
        mWebView.getSettings().setBuiltInZoomControls(true);
        //接口回调
        mWebView.setWebChromeClient(new WebChromeClient(){
            public void onProgressChanged(WebView view, int newProgress) {
                if(newProgress == 100){
                    mProgressBar.setVisibility(View.GONE);
                }
                super.onProgressChanged(view, newProgress);
            }
        });
        //加载网页
        mWebView.loadUrl(url);

        //本地显示
        mWebView.setWebViewClient(new android.webkit.WebViewClient(){
            @Override
            public boolean shouldOverrideUrlLoading(WebView view, WebResourceRequest request) {
                view.loadUrl(url);
                //我接受这个事件
                return true;
            }
        });
    }
}

布局就一个WebView一个进度条