com.wehome.ctb.paintpanel.MainActivity.java Source code

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Here is the source code for com.wehome.ctb.paintpanel.MainActivity.java

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/*
 * Copyright (C) 2011 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.wehome.ctb.paintpanel;

import java.io.InputStream;
import java.lang.reflect.Field;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.ArrayList;
import java.util.Map;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;

import android.annotation.SuppressLint;
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.DialogInterface.OnClickListener;
import android.content.Intent;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentStatePagerAdapter;
import android.support.v4.view.ViewPager;
import android.util.Log;
import android.view.View;
import android.view.ViewConfiguration;
import android.view.ViewGroup;
import android.widget.TabHost;
import android.widget.TabWidget;
import android.widget.Toast;

import com.actionbarsherlock.app.SherlockFragmentActivity;
import com.actionbarsherlock.view.MenuItem;
import com.wehome.ctb.paintpanel.constant.MsgWhat;
import com.wehome.ctb.paintpanel.plug.ImageGridFragment;
import com.wehome.ctb.paintpanel.plug.ImageWallListFragment;
import com.wehome.ctb.paintpanel.upgrade.AppUpgradeService;
import com.wehome.ctb.paintpanel.util.EnumUtil;
import com.wehome.ctb.paintpanel.util.NetWorkerUtil;
import com.wehome.ctb.paintpanel.util.SettingUtility;
import com.wehome.ctb.paintpanel.util.ToastMessageUtil;
import com.wehome.ctb.paintpanel.util.VersionXmlService;

/**
 * Demonstrates combining a TabHost with a ViewPager to implement a tab UI
 * that switches between tabs and also allows the user to perform horizontal
 * flicks to move between the tabs.
 */
@SuppressLint("NewApi")
public class MainActivity extends SherlockFragmentActivity {
    TabHost mTabHost;
    ViewPager mViewPager;
    TabsAdapter mTabsAdapter;
    /* ??XML? */
    Map<String, String> mHashMap;

    private String versioninfo = "http://download.soso88.org/version.xml";

    private static ExecutorService fixedThreadPool = Executors.newFixedThreadPool(1);

    private String versionCode;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        //setTheme(PaintActivity.THEME); //Used for theme switching in samples
        setTheme(R.style.Theme_Sherlock);
        //requestWindowFeature(Window.FEATURE_ACTION_BAR);
        super.onCreate(savedInstanceState);

        setContentView(R.layout.main_activity);

        mTabHost = (TabHost) findViewById(android.R.id.tabhost);
        mTabHost.setup();

        mViewPager = (ViewPager) findViewById(R.id.pager);

        mTabsAdapter = new TabsAdapter(this, mTabHost, mViewPager);

        //??
        if (!NetWorkerUtil.isNetworkAvailable(this)) {
            Toast.makeText(this, "?????", Toast.LENGTH_LONG).show();
            return;
        }

        // ??
        versionCode = MainApplication.mVersionCode;

        //
        fixedThreadPool.execute(new Runnable() {
            @Override
            public void run() {
                checkNewVersion(); //     
            }
        });

        //?
        Bundle bund = new Bundle();
        bund.putInt(com.wehome.ctb.paintpanel.constant.PaintConst.BLASTS_TYPE_FLG,
                com.wehome.ctb.paintpanel.constant.PaintConst.BLASTS_TYPE);
        mTabsAdapter.addTab(mTabHost.newTabSpec("?").setIndicator("?"), ImageWallListFragment.class,
                bund);

        //?
        bund = new Bundle();
        bund.putInt(com.wehome.ctb.paintpanel.constant.PaintConst.BLASTS_TYPE_FLG,
                com.wehome.ctb.paintpanel.constant.PaintConst.MY_TYPE);
        mTabsAdapter.addTab(mTabHost.newTabSpec("?").setIndicator("?"), ImageWallListFragment.class,
                bund);

        //??
        /*bund = new Bundle();
        bund.putInt(com.wehome.ctb.paintpanel.constant.PaintConst.BLASTS_TYPE_FLG, 
          com.wehome.ctb.paintpanel.constant.PaintConst.BID_TYPE);
        mTabsAdapter.addTab(mTabHost.newTabSpec("").setIndicator(""),
          ImageGridFragment.class, bund);*/

        //
        bund = new Bundle();
        bund.putInt(com.wehome.ctb.paintpanel.constant.PaintConst.BLASTS_TYPE_FLG,
                com.wehome.ctb.paintpanel.constant.PaintConst.MY_FOLLOW);
        mTabsAdapter.addTab(mTabHost.newTabSpec("").setIndicator(""), ImageGridFragment.class,
                bund);

        if (savedInstanceState != null) {
            mTabHost.setCurrentTabByTag(savedInstanceState.getString("tab"));
        }

        getOverflowMenu();
    }

    /**
     * app ?
     * 
     */
    public void checkNewVersion() {
        // ?Messagewhat1
        Message msg = Message.obtain();
        msg.what = MsgWhat.USER_LOGIN_DIALOG_STAUTS;
        URL url;//version.xml
        // version.xml???
        // ?XML XML?DOM??
        VersionXmlService service = VersionXmlService.getInstance();
        try {
            url = new URL(versioninfo);//version.xml?
            HttpURLConnection connection = (HttpURLConnection) url.openConnection();
            InputStream inStream = connection.getInputStream();//???         
            mHashMap = service.loadVersionInfo(inStream);
            msg.obj = EnumUtil.Success;
        } catch (Exception e) {
            msg.obj = EnumUtil.ServerError;
        }

        // ????
        handler.sendMessage(msg);

    }

    @SuppressLint("HandlerLeak")
    private Handler handler = new Handler() {
        @Override
        public void handleMessage(Message msg) {
            // ???? UI
            super.handleMessage(msg);
            switch (msg.what) {
            case MsgWhat.USER_LOGIN_DIALOG_STAUTS:
                if (msg.obj == EnumUtil.Success) {
                    if (null != mHashMap) {
                        String serviceCode = String.valueOf(mHashMap.get(VersionXmlService.VERSION_KEY));
                        String localVersion = String.valueOf(versionCode);
                        // 
                        if (!serviceCode.toLowerCase().equals(localVersion.toLowerCase())) {
                            isUpdate(); //?
                        }
                    }

                }
                break;
            default:
                break;
            }
        }

    };

    @Override
    protected void onSaveInstanceState(Bundle outState) {
        super.onSaveInstanceState(outState);
        outState.putString("tab", mTabHost.getCurrentTabTag());
    }

    @Override
    public void onResume() {
        invalidateOptionsMenu(); //???
        super.onResume();
    }

    @Override
    public boolean onPrepareOptionsMenu(com.actionbarsherlock.view.Menu menu) {

        if (SettingUtility.getUid().equals("") || SettingUtility.getUid() == "") {
            return true;
        } else {

            //             menu.getItem(0).setVisible(false); //login,??login ?
            menu.getItem(1).setIcon(getResources().getDrawable(R.drawable.account_loginout));
            menu.getItem(1).setTitle(R.string.zx);
            return true;
        }

    }

    @Override
    public boolean onCreateOptionsMenu(com.actionbarsherlock.view.Menu menu) {

        getSupportMenuInflater().inflate(R.menu.main_pager_bar, menu);
        return super.onCreateOptionsMenu(menu);
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {

        if (item.getTitle().equals(getResources().getString(R.string.paint_toolbar_speak))) {
            //speak(paintDrawImg);
            Intent i = new Intent(MainActivity.this, PaintActivity.class);
            startActivity(i);
            MainActivity.this.finish();
        } else if (item.getTitle().equals(getResources().getString(R.string.main_toolbar_exit))) {
            //publish(paintDrawImg);
            this.finish();
        } else if (item.getTitle().equals(getResources().getString(R.string.login_button_name))) {
            //
            Intent i = new Intent(MainActivity.this, LoginDialog.class);
            startActivity(i);
        } else if (item.getTitle().equals(getResources().getString(R.string.zx))) {
            // ?
            new AlertDialog.Builder(this).setTitle(R.string.zx_user)
                    .setPositiveButton(R.string.alert_dialog_ok, new OnClickListener() {
                        @Override
                        public void onClick(DialogInterface dialog, int which) {
                            //?
                            if (SettingUtility.removeAllEditor()) {
                                SettingUtility.firstStart();
                                ToastMessageUtil.ToastMessage(MainActivity.this, R.string.zx_success);
                                //
                                Intent i = new Intent(MainActivity.this, LoginDialog.class);
                                startActivity(i);

                            }
                            dialog.dismiss();
                        }
                    }).setNegativeButton(R.string.alert_dialog_cancel, new OnClickListener() {
                        @Override
                        public void onClick(DialogInterface dialog, int which) {
                            dialog.dismiss();
                        }
                    }).create().show();
        }
        return super.onOptionsItemSelected(item);
    }

    private void getOverflowMenu() {

        try {
            ViewConfiguration config = ViewConfiguration.get(this);
            Field menuKeyField = ViewConfiguration.class.getDeclaredField("sHasPermanentMenuKey");
            if (menuKeyField != null) {
                menuKeyField.setAccessible(true);
                menuKeyField.setBoolean(config, false);
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    /**
     * This is a helper class that implements the management of tabs and all
     * details of connecting a ViewPager with associated TabHost.  It relies on a
     * trick.  Normally a tab host has a simple API for supplying a View or
     * Intent that each tab will show.  This is not sufficient for switching
     * between pages.  So instead we make the content part of the tab host
     * 0dp high (it is not shown) and the TabsAdapter supplies its own dummy
     * view to show as the tab content.  It listens to changes in tabs, and takes
     * care of switch to the correct paged in the ViewPager whenever the selected
     * tab changes.
     */
    public static class TabsAdapter extends FragmentStatePagerAdapter
            implements TabHost.OnTabChangeListener, ViewPager.OnPageChangeListener {
        private final Context mContext;
        private final TabHost mTabHost;
        private final ViewPager mViewPager;
        private final ArrayList<TabInfo> mTabs = new ArrayList<TabInfo>();

        static final class TabInfo {
            private final String tag;
            private final Class<?> clss;
            private final Bundle args;

            TabInfo(String _tag, Class<?> _class, Bundle _args) {
                tag = _tag;
                clss = _class;
                args = _args;
            }
        }

        static class DummyTabFactory implements TabHost.TabContentFactory {
            private final Context mContext;

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

            @Override
            public View createTabContent(String tag) {
                View v = new View(mContext);
                v.setMinimumWidth(0);
                v.setMinimumHeight(0);
                return v;
            }
        }

        public TabsAdapter(FragmentActivity activity, TabHost tabHost, ViewPager pager) {
            super(activity.getSupportFragmentManager());
            mContext = activity;
            mTabHost = tabHost;
            mViewPager = pager;
            mTabHost.setOnTabChangedListener(this);
            mViewPager.setAdapter(this);
            mViewPager.setOnPageChangeListener(this);
        }

        public void addTab(TabHost.TabSpec tabSpec, Class<?> clss, Bundle args) {
            tabSpec.setContent(new DummyTabFactory(mContext));
            String tag = tabSpec.getTag();

            TabInfo info = new TabInfo(tag, clss, args);
            mTabs.add(info);
            mTabHost.addTab(tabSpec);
            notifyDataSetChanged();
        }

        @Override
        public int getCount() {
            return mTabs.size();
        }

        @Override
        public Fragment getItem(int position) {
            TabInfo info = mTabs.get(position);
            return Fragment.instantiate(mContext, info.clss.getName(), info.args);
        }

        @Override
        public int getItemPosition(Object object) {
            return TabsAdapter.POSITION_NONE;
        }

        @Override
        public Object instantiateItem(ViewGroup container, int position) {
            return super.instantiateItem(container, position);

        }

        @Override
        public void onTabChanged(String tabId) {
            int position = mTabHost.getCurrentTab();
            mViewPager.setCurrentItem(position);

        }

        @Override
        public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
            Log.d("MainTab", "onPageScrolled,position:" + position + ",positionOffset:" + positionOffset
                    + ",positionOffsetPixels:" + positionOffsetPixels);
        }

        @Override
        public void onPageSelected(int position) {
            // Unfortunately when TabHost changes the current tab, it kindly
            // also takes care of putting focus on it when not in touch mode.
            // The jerk.
            // This hack tries to prevent this from pulling focus out of our
            // ViewPager.          
            TabWidget widget = mTabHost.getTabWidget();
            int oldFocusability = widget.getDescendantFocusability();
            widget.setDescendantFocusability(ViewGroup.FOCUS_BLOCK_DESCENDANTS);
            mTabHost.setCurrentTab(position);
            widget.setDescendantFocusability(oldFocusability);

        }

        @Override
        public void onPageScrollStateChanged(int state) {
            Log.d("MainTab", "state:" + state);
        }
    }

    /**
     * 
     * @return
     */
    @SuppressLint("NewApi")
    private void isUpdate() {
        // ???
        new AlertDialog.Builder(this, R.style.loading_dialog).setTitle(R.string.check_new_version_title)
                .setMessage(R.string.check_new_version)
                .setPositiveButton(R.string.alert_dialog_ok, new OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        dialog.dismiss();
                        Intent intent = new Intent(MainActivity.this, AppUpgradeService.class);
                        intent.putExtra("downloadUrl", mHashMap.get(VersionXmlService.URL_KEY));
                        intent.putExtra("appName", mHashMap.get(VersionXmlService.NAME_KEY) + ".apk");
                        startService(intent);
                    }
                }).setNegativeButton(R.string.alert_dialog_cancel, new OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        dialog.dismiss();
                    }
                }).create().show();
    }

}