MainFragment.java

package net.wequick.example.small.app.home;

import android.app.ProgressDialog;
import android.content.Context;
import android.databinding.DataBindingUtil;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.support.annotation.Keep;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.Toast;

import net.wequick.example.small.app.home.databinding.FragmentMainBinding;
import net.wequick.small.Small;
import net.wequick.example.small.lib.utils.UIUtils;

import org.json.JSONArray;
import org.json.JSONObject;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;

/**
 * Created by galen on 15/11/16.
 */
@Keep
public class MainFragment extends Fragment {
    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
//        View rootView = inflater.inflate(R.layout.fragment_main, container, false);

        FragmentMainBinding binding = DataBindingUtil.inflate(inflater, R.layout.fragment_main, container, false);
        binding.setHandlers(new MyHandler());
        View rootView = binding.getRoot();

//        Button button = (Button) rootView.findViewById(R.id.btnDetail);
//        button.setOnClickListener(new View.OnClickListener() {
//            @Override
//            public void onClick(View v) {
//                Small.openUri("detail?from=app.home", getContext());
//            }
//        });

        Button button = (Button) rootView.findViewById(R.id.btnSubDetail);
        button.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Small.openUri("detail/sub", getContext());
            }
        });

        button = (Button) rootView.findViewById(R.id.btnAbout);
        button.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Small.openUri("about", getContext());
            }
        });

        button = (Button) rootView.findViewById(R.id.btnLib);
        button.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                UIUtils.showToast(getContext(), "Hello World!");
            }
        });

        button = (Button) rootView.findViewById(R.id.btnUpgrade);
        button.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                checkUpgrade();
            }
        });
        return rootView;
    }

    private void checkUpgrade() {
        new UpgradeManager(getContext()).checkUpgrade();
    }

    private static class UpgradeManager {

        private static class UpdateInfo {
            public String packageName;
            public String downloadUrl;
        }

        private static class UpgradeInfo {
            public JSONObject manifest;
            public List
 
   updates;
        }

        private interface OnResponseListener {
            void onResponse(UpgradeInfo info);
        }

        private interface OnUpgradeListener {
            void onUpgrade(boolean succeed);
        }

        private static class ResponseHandler extends Handler {
            private OnResponseListener mListener;
            public ResponseHandler(OnResponseListener listener) {
                mListener = listener;
            }

            @Override
            public void handleMessage(Message msg) {
                switch (msg.what) {
                    case 1:
                        mListener.onResponse((UpgradeInfo) msg.obj);
                        break;
                }
            }
        }

        private ResponseHandler mResponseHandler;

        private Context mContext;
        private ProgressDialog mProgressDlg;

        public UpgradeManager(Context context) {
            mContext = context;
        }

        public void checkUpgrade() {
            mProgressDlg = ProgressDialog.show(mContext, "Small", "Checking for updates...");
            requestUpgradeInfo(Small.getBundleVersions(), new OnResponseListener() {
                @Override
                public void onResponse(UpgradeInfo info) {
                    mProgressDlg.setMessage("Upgrading...");
                    upgradeBundles(info,
                            new OnUpgradeListener() {
                                @Override
                                public void onUpgrade(boolean succeed) {
                                    mProgressDlg.dismiss();
                                    mProgressDlg = null;
                                    String text = succeed ?
                                            "Upgrade Success! Switch to background and back to foreground to see changes."
                                            : "Upgrade Failed!";
                                    Toast.makeText(mContext, text, Toast.LENGTH_SHORT).show();
                                }
                            });
                }
            });
        }

        /**
         *
         * @param versions
         * @param listener
         */
        private void requestUpgradeInfo(Map versions, OnResponseListener listener) {
            System.out.println(versions); // this should be passed as HTTP parameters
            mResponseHandler = new ResponseHandler(listener);
            new Thread() {
                @Override
                public void run() {
                    try {
                        // Example HTTP request to get the upgrade bundles information.
                        // Json format see http://wequick.github.io/small/upgrade/bundles.json
                        URL url = new URL("http://wequick.github.io/small/upgrade/bundles.json");
                        HttpURLConnection conn = (HttpURLConnection) url.openConnection();
                        StringBuilder sb = new StringBuilder();
                        InputStream is = conn.getInputStream();
                        byte[] buffer = new byte[1024];
                        int length;
                        while ((length = is.read(buffer)) != -1) {
                            sb.append(new String(buffer, 0, length));
                        }

                        // Parse json
                        JSONObject jo = new JSONObject(sb.toString());
                        JSONObject mf = jo.has("manifest") ? jo.getJSONObject("manifest") : null;
                        JSONArray updates = jo.getJSONArray("updates");
                        int N = updates.length();
                        List
  
    infos = new ArrayList
   
    (N); for (int i = 0; i < N; i++) { JSONObject o = updates.getJSONObject(i); UpdateInfo info = new UpdateInfo(); info.packageName = o.getString("pkg"); info.downloadUrl = o.getString("url"); infos.add(info); } // Post message UpgradeInfo ui = new UpgradeInfo(); ui.manifest = mf; ui.updates = infos; Message.obtain(mResponseHandler, 1, ui).sendToTarget(); } catch (Exception e) { e.printStackTrace(); } } }.start(); } private static class DownloadHandler extends Handler { private OnUpgradeListener mListener; public DownloadHandler(OnUpgradeListener listener) { mListener = listener; } @Override public void handleMessage(Message msg) { switch (msg.what) { case 1: mListener.onUpgrade((Boolean) msg.obj); break; } } } private DownloadHandler mHandler; private void upgradeBundles(final UpgradeInfo info, final OnUpgradeListener listener) { // Just for example, you can do this by OkHttp or something. mHandler = new DownloadHandler(listener); new Thread() { @Override public void run() { try { // Update manifest if (info.manifest != null) { if (!Small.updateManifest(info.manifest, false)) { Message.obtain(mHandler, 1, false).sendToTarget(); return; } } // Download bundles List
    
      updates = info.updates; for (UpdateInfo u : updates) { // Get the patch file for downloading net.wequick.small.Bundle bundle = Small.getBundle(u.packageName); File file = bundle.getPatchFile(); // Download URL url = new URL(u.downloadUrl); HttpURLConnection urlConn = (HttpURLConnection) url.openConnection(); InputStream is = urlConn.getInputStream(); OutputStream os = new FileOutputStream(file); byte[] buffer = new byte[1024]; int length; while ((length = is.read(buffer)) != -1) { os.write(buffer, 0, length); } os.flush(); os.close(); is.close(); // Upgrade bundle.upgrade(); } Message.obtain(mHandler, 1, true).sendToTarget(); } catch (IOException e) { e.printStackTrace(); Message.obtain(mHandler, 1, false).sendToTarget(); } } }.start(); } } }