in.mashroom.matome.MainActivity.java Source code

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Here is the source code for in.mashroom.matome.MainActivity.java

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/*
 * Copyright (c) 2015-present, Parse, LLC.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 */
package in.mashroom.matome;

import android.app.ActionBar;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.support.v4.view.ViewPager;
import android.support.v7.app.ActionBarActivity;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.FrameLayout;
import android.widget.LinearLayout;
import android.widget.ListView;
import android.widget.TabHost;
import android.widget.TabWidget;
import android.widget.TextView;
import android.widget.Toast;

import com.parse.FindCallback;
import com.parse.GetCallback;
import com.parse.ParseAnalytics;
import com.parse.ParseObject;
import com.parse.ParseQuery;

import java.text.ParseException;
import java.util.ArrayList;
import java.util.List;
import com.google.android.gms.ads.AdRequest;
import com.google.android.gms.ads.AdView;

public class MainActivity extends ActionBarActivity {

    MainActivity mActivity;
    SectionsPagerAdapter mSectionsPagerAdapter;
    ViewPager mViewPager;
    TabHost tabHost;
    View indicator;
    TabWidget tabWidget;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        mActivity = this;
        setContentView(R.layout.activity_main);

        ParseAnalytics.trackAppOpenedInBackground(getIntent());

        // Create the adapter that will return a fragment for each of the three
        // primary sections of the activity.
        mSectionsPagerAdapter = new SectionsPagerAdapter(getSupportFragmentManager(), this);

        // Set up the ViewPager with the sections adapter.
        mViewPager = (ViewPager) findViewById(R.id.pager);
        mViewPager.setAdapter(mSectionsPagerAdapter);

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

        // ??
        tabWidget = (TabWidget) findViewById(android.R.id.tabs);
        tabWidget.setStripEnabled(false);
        tabWidget.setShowDividers(LinearLayout.SHOW_DIVIDER_NONE);

        LayoutInflater inflater = LayoutInflater.from(this);
        for (int i = 0; i < mSectionsPagerAdapter.getCount(); i++) {
            TextView tv = (TextView) inflater.inflate(R.layout.tab_widget, tabWidget, false);
            tv.setText(mSectionsPagerAdapter.getPageTitle(i));

            tabHost.addTab(
                    tabHost.newTabSpec(String.valueOf(i)).setIndicator(tv).setContent(android.R.id.tabcontent));
        }

        indicator = findViewById(R.id.indicator);
        mViewPager.setOnPageChangeListener(new PageChangeListener());

        // ActionBar??
        getSupportActionBar().setElevation(0);
        getSupportActionBar().setDisplayShowTitleEnabled(true);

        // ??
        float elevation = 4 * getResources().getDisplayMetrics().density;
        tabHost.setElevation(elevation);

        tabHost.setOnTabChangedListener(new TabHost.OnTabChangeListener() {
            @Override
            public void onTabChanged(String tabId) {
                mViewPager.setCurrentItem(Integer.valueOf(tabId));
            }
        });

        // Ad
        AdView mAdView = (AdView) findViewById(R.id.adView);
        AdRequest adRequest = new AdRequest.Builder().build();
        mAdView.loadAd(adRequest);
    }

    private class PageChangeListener implements ViewPager.OnPageChangeListener {
        private int scrollingState = ViewPager.SCROLL_STATE_IDLE;

        @Override
        public void onPageSelected(int position) {
            // ?onPageScrolled()?????????????
            if (scrollingState == ViewPager.SCROLL_STATE_IDLE) {
                updateIndicatorPosition(position, 0);
            }
            tabWidget.setCurrentTab(position);
        }

        @Override
        public void onPageScrollStateChanged(int state) {
            scrollingState = state;
        }

        @Override
        public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
            updateIndicatorPosition(position, positionOffset);
        }

        private void updateIndicatorPosition(int position, float positionOffset) {
            View tabView = tabWidget.getChildTabViewAt(position);
            int indicatorWidth = tabView.getWidth();
            int indicatorLeft = (int) ((position + positionOffset) * indicatorWidth);

            final FrameLayout.LayoutParams layoutParams = (FrameLayout.LayoutParams) indicator.getLayoutParams();
            layoutParams.width = indicatorWidth;
            layoutParams.setMargins(indicatorLeft, 0, 0, 0);
            indicator.setLayoutParams(layoutParams);
        }
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.menu_main, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();

        //noinspection SimplifiableIfStatement
        if (id == R.id.action_settings) {
            return true;
        }

        return super.onOptionsItemSelected(item);
    }
}