package com.swordy.demo.android.fragment;

import java.util.Random;

import android.os.Bundle;

import android.support.v4.app.Fragment;

import android.support.v4.app.FragmentActivity;

import android.support.v4.app.FragmentManager;

import android.support.v4.app.FragmentStatePagerAdapter;

import android.support.v4.view.PagerAdapter;

import android.support.v4.view.ViewPager;

import android.support.v4.view.ViewPager.OnPageChangeListener;

import android.view.LayoutInflater;

import android.view.View;

import android.view.View.OnClickListener;

import android.view.ViewGroup;

import android.widget.Button;

import android.widget.TabWidget;

import android.widget.TextView;

import com.swordy.demo.android.R;

/**

* 1. 使用TabWidget和ViewPager实现可滑动的Tab

*

* @author swordy

* @email mryangjian@live.com

* @since Jan 20, 2014

* @version 1.0

*/

public class SlideTabs3 extends FragmentActivity

{

private static final String TAG = "AndroidDemos.SlideTabs3";

private ViewPager mViewPager;

private PagerAdapter mPagerAdapter;

private TabWidget mTabWidget;

private String[] addresses = { "first", "second", "third" };

private Button[] mBtnTabs = new Button[addresses.length];

@Override

protected void onCreate(Bundle savedInstanceState)

{

super.onCreate(savedInstanceState);

setContentView(R.layout.fragment_slidetabs3);

mTabWidget = (TabWidget) findViewById(R.id.tabWidget1);

mTabWidget.setStripEnabled(false);

mBtnTabs[0] = new Button(this);

mBtnTabs[0].setFocusable(true);

mBtnTabs[0].setText(addresses[0]);

mBtnTabs[0].setTextColor(getResources().getColorStateList(R.color.button_bg_color_selector));

mTabWidget.addView(mBtnTabs[0]);

/*

* Listener必须在mTabWidget.addView()之后再加入，用于覆盖默认的Listener，

* mTabWidget.addView()中默认的Listener没有NullPointer检测。

*/

mBtnTabs[0].setOnClickListener(mTabClickListener);

mBtnTabs[1] = new Button(this);

mBtnTabs[1].setFocusable(true);

mBtnTabs[1].setText(addresses[1]);

mBtnTabs[1].setTextColor(getResources().getColorStateList(R.color.button_bg_color_selector));

mTabWidget.addView(mBtnTabs[1]);

mBtnTabs[1].setOnClickListener(mTabClickListener);

mBtnTabs[2] = new Button(this);

mBtnTabs[2].setFocusable(true);

mBtnTabs[2].setText(addresses[2]);

mBtnTabs[2].setTextColor(getResources().getColorStateList(R.color.button_bg_color_selector));

mTabWidget.addView(mBtnTabs[2]);

mBtnTabs[2].setOnClickListener(mTabClickListener);

mViewPager = (ViewPager) findViewById(R.id.viewPager1);

mPagerAdapter = new MyPagerAdapter(getSupportFragmentManager());

mViewPager.setAdapter(mPagerAdapter);

mViewPager.setOnPageChangeListener(mPageChangeListener);

mTabWidget.setCurrentTab(0);

}

private OnClickListener mTabClickListener = new OnClickListener() {

@Override

public void onClick(View v)

{

if (v == mBtnTabs[0])

{

mViewPager.setCurrentItem(0);

} else if (v == mBtnTabs[1])

{

mViewPager.setCurrentItem(1);

} else if (v == mBtnTabs[2])

{

mViewPager.setCurrentItem(2);

}

}

};

private OnPageChangeListener mPageChangeListener = new OnPageChangeListener() {

@Override

public void onPageSelected(int arg0)

{

mTabWidget.setCurrentTab(arg0);

}

@Override

public void onPageScrolled(int arg0, float arg1, int arg2)

{

}

@Override

public void onPageScrollStateChanged(int arg0)

{

}

};

private class MyPagerAdapter extends FragmentStatePagerAdapter

{

public MyPagerAdapter(FragmentManager fm)

{

super(fm);

}

@Override

public Fragment getItem(int position)

{

return MyFragment.create(addresses[position]);

}

@Override

public int getCount()

{

return addresses.length;

}

}

public static class MyFragment extends Fragment

{

public static MyFragment create(String address)

{

MyFragment f = new MyFragment();

Bundle b = new Bundle();

b.putString("address", address);

f.setArguments(b);

return f;

}

@Override

public View onCreateView(LayoutInflater inflater, ViewGroup container,

Bundle savedInstanceState)

{

Random r = new Random(System.currentTimeMillis());

Bundle b = getArguments();

View v = inflater.inflate(R.layout.fragment_viewpager1_layout1, null);

v.setBackgroundColor(r.nextInt() >> 8 | 0xFF << 24);

TextView txvAddress = (TextView) v.findViewById(R.id.textView1);

txvAddress.setTextColor(r.nextInt() >> 8 | 0xFF << 24);

txvAddress.setBackgroundColor(r.nextInt() >> 8 | 0xFF << 24);

txvAddress.setText(b.getString("address", ""));

return v;

}

}

}