package com.loaderman.uiframedemo;

import android.os.Bundle;

import android.support.v4.app.Fragment;

import android.support.v4.app.FragmentManager;

import android.support.v4.app.FragmentPagerAdapter;

import android.support.v4.view.ViewPager;

import android.support.v7.app.AppCompatActivity;

import android.view.Display;

import android.view.View;

import android.view.WindowManager;

import android.view.animation.Animation;

import android.view.animation.TranslateAnimation;

import android.widget.ImageView;

import android.widget.TextView;

public class MainActivity extends AppCompatActivity {

    private ViewPager mTabPager;

    private ImageView mTabImg;// 动画图片

    private TextView  mTab1, mTab2, mTab3, mTab4;

    private int zero      = 0;// 动画图片偏移量

    private int currIndex = 0;// 当前页卡编号

    private int one;//单个水平动画位移

    private int two;

    private int three;

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_HIDDEN);

        setContentView(R.layout.activity_main);

        mTabPager = (ViewPager) findViewById(R.id.tabpager);

        mTabPager.addOnPageChangeListener(new MyOnPageChangeListener());

        mTab1 = (TextView) findViewById(R.id.tv_weixin);

        mTab2 = (TextView) findViewById(R.id.tv_address);

        mTab3 = (TextView) findViewById(R.id.tv_friends);

        mTab4 = (TextView) findViewById(R.id.tv_settings);

        mTabImg = (ImageView) findViewById(R.id.img_tab_now);

        mTab1.setOnClickListener(new MyOnClickListener(0));

        mTab2.setOnClickListener(new MyOnClickListener(1));

        mTab3.setOnClickListener(new MyOnClickListener(2));

        mTab4.setOnClickListener(new MyOnClickListener(3));

        Display currDisplay = getWindowManager().getDefaultDisplay();//获取屏幕当前分辨率

        int displayWidth = currDisplay.getWidth();

        //        int displayHeight = currDisplay.getHeight();

        one = displayWidth / 4; //设置水平动画平移大小

        two = one * 2;

        three = one * 3;

        mTabPager.setAdapter(new MyAdapter(getSupportFragmentManager()));

    }

    /**

     * 1、ViewPager展示的是一个又一个普通的View对象，使用PagerAdapter

     * 2、ViewPager展示的是一个又一个Fragment所包装的View对象，使用FragmentPagerAdapter

     */

    class MyAdapter extends FragmentPagerAdapter {

        private String[] mTabNames;

        public MyAdapter(FragmentManager fm) {

            super(fm);

            mTabNames = new String[]{"weixin", "adreess", "friend", "settring",};

        }

        @Override

        public Fragment getItem(int position) {

            return FragmentFactory.getFragment(position);

        }

        @Override

        public int getCount() {

            return mTabNames.length;

        }

    }

    /**

     * 头标点击监听

     */

    public class MyOnClickListener implements View.OnClickListener {

        private int index = 0;

        public MyOnClickListener(int i) {

            index = i;

        }

        @Override

        public void onClick(View v) {

            mTabPager.setCurrentItem(index);

        }

    };

    /* 页卡切换监听

    */

    public class MyOnPageChangeListener implements ViewPager.OnPageChangeListener {

        @Override

        public void onPageSelected(int arg0) {

            Animation animation = null;

            switch (arg0) {

                case 0:

                    if (currIndex == 1) {

                        animation = new TranslateAnimation(one, 0, 0, 0);

                    } else if (currIndex == 2) {

                        animation = new TranslateAnimation(two, 0, 0, 0);

                    } else if (currIndex == 3) {

                        animation = new TranslateAnimation(three, 0, 0, 0);

                    }

                    break;

                case 1:

                    if (currIndex == 0) {

                        animation = new TranslateAnimation(zero, one, 0, 0);

                    } else if (currIndex == 2) {

                        animation = new TranslateAnimation(two, one, 0, 0);

                    } else if (currIndex == 3) {

                        animation = new TranslateAnimation(three, one, 0, 0);

                    }

                    break;

                case 2:

                    if (currIndex == 0) {

                        animation = new TranslateAnimation(zero, two, 0, 0);

                    } else if (currIndex == 1) {

                        animation = new TranslateAnimation(one, two, 0, 0);

                    } else if (currIndex == 3) {

                        animation = new TranslateAnimation(three, two, 0, 0);

                    }

                    break;

                case 3:

                    if (currIndex == 0) {

                        animation = new TranslateAnimation(zero, three, 0, 0);

                    } else if (currIndex == 1) {

                        animation = new TranslateAnimation(one, three, 0, 0);

                    } else if (currIndex == 2) {

                        animation = new TranslateAnimation(two, three, 0, 0);

                    }

                    break;

            }

            currIndex = arg0;

            animation.setFillAfter(true);// True:图片停在动画结束位置

            animation.setDuration(150);

            mTabImg.startAnimation(animation);

        }

        @Override

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

        }

        @Override

        public void onPageScrollStateChanged(int arg0) {

        }

    }

}

package com.loaderman.uiframedemo;

import android.os.Bundle;

import android.support.annotation.Nullable;

import android.support.v4.app.Fragment;

import android.view.LayoutInflater;

import android.view.View;

import android.view.ViewGroup;

public abstract class BaseFragment extends Fragment {

    @Nullable

    @Override

    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {

        return initView();

    }

    public abstract  View initView() ;

}

package com.loaderman.uiframedemo;

import android.support.v4.app.Fragment;

import java.util.HashMap;

public class FragmentFactory {

    private static HashMap<Integer, Fragment> savedFragment = new HashMap<Integer, Fragment>();

    public static Fragment getFragment(int position) {

        Fragment fragment = savedFragment.get(position);

        if (fragment == null) {

            switch (position) {

                case 0:

                    fragment = new WenxinFragment();

                    break;

                case 1:

                    fragment = new AddressFragment();

                    break;

                case 2:

                    fragment = new FriendFragment();

                    break;

                case 3:

                    fragment = new SettingFragment();

                    break;

            }

            savedFragment.put(position, fragment);

        }

        return fragment;

    }

}

package com.loaderman.uiframedemo;

import android.view.View;

import android.widget.TextView;

public class SettingFragment extends BaseFragment {

    @Override

    public View initView() {

        TextView tv  =  new TextView(getContext());

        tv.setText("设置");

        return tv;

    }

}