coordinatorlayout介绍:
coordinatorlayout是5.0之后推出一个功能。使用布局完成特效比较简单。它像一个协调者,来协助一些属性完成一些特效。appbarlayout,是一个可以滑动的控件,但是必须在coordinatorlayout里面才可以有滑动效果的,appbarlayout也是5.0推出的新特效。在这里不多说了,具体详细的一些属性,你可以在网上查找。这个属性用起来特别方便的,好像有的公司就推荐用这一种布局。
需要依赖的包:
compile 'com.android.support:design:24.2.0'
xml布局:
<?xml version="1.0" encoding="utf-8"?> <android.support.design.widget.CoordinatorLayout android:layout_width="match_parent" android:layout_height="match_parent" xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto"> <android.support.design.widget.AppBarLayout android:id="@+id/mAppbarLayout" android:fitsSystemWindows="true" android:layout_width="match_parent" android:layout_height="300dp"> <android.support.design.widget.CollapsingToolbarLayout android:id="@+id/mCtbarLayout" android:fitsSystemWindows="true" app:layout_scrollFlags="scroll|enterAlways" android:layout_width="match_parent" android:layout_height="250dp"> </android.support.design.widget.CollapsingToolbarLayout> <android.support.design.widget.TabLayout android:id="@+id/mTable" android:fitsSystemWindows="true" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_alignParentBottom="true" ></android.support.design.widget.TabLayout> </android.support.design.widget.AppBarLayout> <android.support.v4.view.ViewPager android:id="@+id/viewpager" android:layout_width="match_parent" android:layout_height="match_parent" app:layout_behavior="@string/appbar_scrolling_view_behavior"> </android.support.v4.view.ViewPager> </android.support.design.widget.CoordinatorLayout>
主界面代码:(接下来是三个fragment的布局自己任意写,在这里就不展示了。)
MainActivity
import android.support.design.widget.TabLayout; import android.support.v4.app.Fragment; import android.support.v4.view.ViewPager; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import java.util.ArrayList; import java.util.List; public class MainActivity extends AppCompatActivity { private String[] s=new String[]{"主页","销售","我的"}; private List<Fragment> list; private TabLayout mTablayout; private ViewPager viewpager; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); initView(); initTitle(); } private void initView() { mTablayout= (TabLayout) findViewById(R.id.mTable); viewpager= (ViewPager) findViewById(R.id.viewpager); } private void initTitle() { list=new ArrayList<>(); list.add(new Fragment1()); list.add(new Fragment2()); list.add(new Fragment3()); MyAdapter adapter=new MyAdapter(getSupportFragmentManager(),list,s); viewpager.setAdapter(adapter); mTablayout.setupWithViewPager(viewpager); } }
MyAdapter
import android.support.v4.app.Fragment; import android.support.v4.app.FragmentManager; import android.support.v4.app.FragmentPagerAdapter; import android.support.v4.view.PagerAdapter; import android.view.View; import android.view.ViewGroup; import java.util.List; public class MyAdapter extends FragmentPagerAdapter{ private List<Fragment> list; private String[] s; public MyAdapter(FragmentManager fm,List<Fragment> list,String[] s) { super(fm); this.list=list; this.s=s; } @Override public Fragment getItem(int position) { return list.get(position); } @Override public int getCount() { return list.size(); } @Override public boolean isViewFromObject(View view, Object object) { return view==object; } @Override public CharSequence getPageTitle(int position) { return s[position]; } @Override public Object instantiateItem(ViewGroup container, int position) { return super.instantiateItem(container, position); } @Override public void destroyItem(ViewGroup container, int position, Object object) { super.destroyItem(container, position, object); } }VpAdapter
import android.content.Context; import android.support.v4.view.PagerAdapter; import android.support.v4.view.ViewPager; import android.view.View; import android.view.ViewGroup; import android.widget.ImageView; import java.util.List; public class Vpadapter extends PagerAdapter{ private List<ImageView> list; public Vpadapter(List<ImageView> list) { this.list = list; } @Override public int getCount() { return 3; } @Override public boolean isViewFromObject(View view, Object object) { return view == object; } @Override public Object instantiateItem(ViewGroup container, int position) { container.addView( list.get(position), 0);//添加页卡 return list.get(position); } @Override public void destroyItem(ViewGroup container, int position, Object object) { container.removeView(list.get(position));//删除页卡 } }接下来写三个Fragment类,也不一一列举了,Fragment里添加个布局就行。