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; } }
WenxinFragment,AddressFeament,FriendFragment,SettingFragment的实现类似如下:
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; } }
效果图: