即拿即用-横向滚动+转场动画+GridView和RecyclerView动态添加

效果图

GitHub地址：https://github.com/mocn26169/MultiViewpager

关键代码：

1、Toolbar

<android.support.v7.widget.Toolbar android:id="@+id/id_toolbar" android:layout_width="match_parent" android:layout_height="wrap_content" android:background="@color/colorPrimary"/> Toolbar toolbar = (Toolbar) findViewById(R.id.id_toolbar); toolbar.setTitle("GridView"); toolbar.setTitleTextColor(ContextCompat.getColor(this, R.color.white)); setSupportActionBar(toolbar);

2、点击时让scrollView滑到最底端

new Handler().post(new Runnable() { @Override public void run() { scrollView.fullScroll(ScrollView.FOCUS_DOWN); } });

3、GridVIew兼容ScrollView，使用自定义的MyGridView

package com.bourne.multiviewpager; import android.content.Context; import android.util.AttributeSet; import android.widget.GridView; public class MyGridView extends GridView{ public MyGridView(Context context, AttributeSet attrs, int defStyle) { super(context, attrs, defStyle); // TODO Auto-generated constructor stub } public MyGridView(Context context, AttributeSet attrs) { super(context, attrs); // TODO Auto-generated constructor stub } public MyGridView(Context context) { super(context); // TODO Auto-generated constructor stub } @Override protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { // TODO Auto-generated method stub int expandSpec = MeasureSpec.makeMeasureSpec( Integer.MAX_VALUE >> 2, MeasureSpec.AT_MOST); super.onMeasure(widthMeasureSpec, expandSpec); } }

4、根据版本判断是否使用动画

//根据版本判断是否使用动画 if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) { setUpWindowTransition(); }else { img_background.setAlpha(1f); tv_content.setAlpha(1f); }