水平スクロールビューページャを作成するには

Question

水平方向に無限のビューページを作成し、左右両方向にスクロールします。

だれでも私に知らせてください。

Answer 1

私は以下のすべてのクラスを実装しています。これを確認して、新しいアイデアがあれば教えてください。

1. Make **HorizontalInfiniteCycleViewPager** class. 
package com.test.HorizontalInfiniteCycleViewPager; 

import android.content.Context; 
import android.support.v4.view.PagerAdapter; 
import android.support.v4.view.ViewPager; 
import android.util.AttributeSet; 
import android.view.MotionEvent; 
import android.view.View; 
import android.view.ViewGroup; 
import android.view.animation.Interpolator; 

/** 
* Created by GIGAMOLE on 7/27/16. 
*/ 
public class HorizontalInfiniteCycleViewPager extends ViewPager implements ViewPageable { 

    private InfiniteCycleManager mInfiniteCycleManager; 

    public HorizontalInfiniteCycleViewPager(final Context context) { 
     super(context); 
     init(context, null); 
    } 

    public HorizontalInfiniteCycleViewPager(final Context context, final AttributeSet attrs) { 
     super(context, attrs); 
     init(context, attrs); 
    } 

    private void init(final Context context, final AttributeSet attributeSet) { 
     mInfiniteCycleManager = new InfiniteCycleManager(context, this, attributeSet); 
    } 

    public float getMinPageScaleOffset() { 
     return mInfiniteCycleManager == null ? 0.0F : mInfiniteCycleManager.getMinPageScaleOffset(); 
    } 

    public void setMinPageScaleOffset(final float minPageScaleOffset) { 
     if (mInfiniteCycleManager != null) 
      mInfiniteCycleManager.setMinPageScaleOffset(minPageScaleOffset); 
    } 

    public float getCenterPageScaleOffset() { 
     return mInfiniteCycleManager == null ? 0.0F : mInfiniteCycleManager.getCenterPageScaleOffset(); 
    } 

    public void setCenterPageScaleOffset(final float centerPageScaleOffset) { 
     if (mInfiniteCycleManager != null) 
      mInfiniteCycleManager.setCenterPageScaleOffset(centerPageScaleOffset); 
    } 

    public float getMinPageScale() { 
     return mInfiniteCycleManager == null ? 0.0F : mInfiniteCycleManager.getMinPageScale(); 
    } 

    public void setMinPageScale(final float minPageScale) { 
     if (mInfiniteCycleManager != null) mInfiniteCycleManager.setMinPageScale(minPageScale); 
    } 

    public float getMaxPageScale() { 
     return mInfiniteCycleManager == null ? 0.0F : mInfiniteCycleManager.getMaxPageScale(); 
    } 

    public void setMaxPageScale(final float maxPageScale) { 
     if (mInfiniteCycleManager != null) mInfiniteCycleManager.setMaxPageScale(maxPageScale); 
    } 

    public boolean isMediumScaled() { 
     return mInfiniteCycleManager != null && mInfiniteCycleManager.isMediumScaled(); 
    } 

    public void setMediumScaled(final boolean mediumScaled) { 
     if (mInfiniteCycleManager != null) mInfiniteCycleManager.setMediumScaled(mediumScaled); 
    } 

    public int getScrollDuration() { 
     return mInfiniteCycleManager == null ? 0 : mInfiniteCycleManager.getScrollDuration(); 
    } 

    public void setScrollDuration(final int scrollDuration) { 
     if (mInfiniteCycleManager != null) mInfiniteCycleManager.setScrollDuration(scrollDuration); 
    } 

    public Interpolator getInterpolator() { 
     return mInfiniteCycleManager == null ? null : mInfiniteCycleManager.getInterpolator(); 
    } 

    public void setInterpolator(final Interpolator interpolator) { 
     if (mInfiniteCycleManager != null) mInfiniteCycleManager.setInterpolator(interpolator); 
    } 

    public boolean isVertical() { 
     return mInfiniteCycleManager != null && mInfiniteCycleManager.isVertical(); 
    } 

    public OnInfiniteCyclePageTransformListener getOnInfiniteCyclePageTransformListener() { 
     return mInfiniteCycleManager == null ? 
       null : mInfiniteCycleManager.getOnInfiniteCyclePageTransformListener(); 
    } 

    public void setOnInfiniteCyclePageTransformListener(
      final OnInfiniteCyclePageTransformListener onInfiniteCyclePageTransformListener 
    ) { 
     if (mInfiniteCycleManager != null) 
      mInfiniteCycleManager.setOnInfiniteCyclePageTransformListener(onInfiniteCyclePageTransformListener); 
    } 

    @Override 
    public void setPageTransformer(final boolean reverseDrawingOrder, final PageTransformer transformer) { 
     super.setPageTransformer(
       false, mInfiniteCycleManager == null ? 
         transformer : mInfiniteCycleManager.getInfinityCyclePageTransformer() 
     ); 
    } 

    @Override 
    protected void setChildrenDrawingOrderEnabled(final boolean enabled) { 
     super.setChildrenDrawingOrderEnabled(InfiniteCycleManager.DEFAULT_DISABLE_FLAG); 
    } 

    @Override 
    public void setClipChildren(final boolean clipChildren) { 
     super.setClipChildren(InfiniteCycleManager.DEFAULT_DISABLE_FLAG); 
    } 

    @Override 
    public void setDrawingCacheEnabled(final boolean enabled) { 
     super.setDrawingCacheEnabled(InfiniteCycleManager.DEFAULT_DISABLE_FLAG); 
    } 

    @Override 
    protected void setChildrenDrawingCacheEnabled(final boolean enabled) { 
     super.setChildrenDrawingCacheEnabled(InfiniteCycleManager.DEFAULT_DISABLE_FLAG); 
    } 

    @Override 
    public void setWillNotCacheDrawing(final boolean willNotCacheDrawing) { 
     super.setWillNotCacheDrawing(InfiniteCycleManager.DEFAULT_ENABLE_FLAG); 
    } 

    @Override 
    public void setPageMargin(final int marginPixels) { 
     super.setPageMargin(InfiniteCycleManager.DEFAULT_PAGE_MARGIN); 
    } 

    @Override 
    public void setOffscreenPageLimit(final int limit) { 
     super.setOffscreenPageLimit(InfiniteCycleManager.DEFAULT_OFFSCREEN_PAGE_LIMIT); 
    } 

    @Override 
    public void setOverScrollMode(final int overScrollMode) { 
     super.setOverScrollMode(OVER_SCROLL_NEVER); 
    } 

    @Override 
    protected boolean addViewInLayout(final View child, final int index, final ViewGroup.LayoutParams params) { 
     return super.addViewInLayout(child, 0, params); 
    } 

    @Override 
    public void addView(final View child, final int index, final ViewGroup.LayoutParams params) { 
     super.addView(child, 0, params); 
    } 

    @Override 
    public void setAdapter(final PagerAdapter adapter) { 
     if (mInfiniteCycleManager == null) super.setAdapter(adapter); 
     else { 
      super.setAdapter(mInfiniteCycleManager.setAdapter(adapter)); 
      mInfiniteCycleManager.resetPager(); 
     } 
    } 

    @Override 
    public PagerAdapter getAdapter() { 
     if (mInfiniteCycleManager == null) return super.getAdapter(); 
     return mInfiniteCycleManager.getInfiniteCyclePagerAdapter() == null ? super.getAdapter() : 
       mInfiniteCycleManager.getInfiniteCyclePagerAdapter().getPagerAdapter(); 
    } 

    @Override 
    public boolean onTouchEvent(final MotionEvent ev) { 
     try { 
      return mInfiniteCycleManager == null ? super.onTouchEvent(ev) : 
        mInfiniteCycleManager.onTouchEvent(ev) && super.onTouchEvent(ev); 
     } catch (IllegalArgumentException e) { 
      return true; 
     } 
    } 

    @Override 
    public boolean onInterceptTouchEvent(final MotionEvent ev) { 
     try { 
      return mInfiniteCycleManager == null ? super.onInterceptTouchEvent(ev) : 
        mInfiniteCycleManager.onInterceptTouchEvent(ev) && super.onInterceptTouchEvent(ev); 
     } catch (IllegalArgumentException e) { 
      return true; 
     } 
    } 

    @Override 
    public void onWindowFocusChanged(final boolean hasWindowFocus) { 
     if (mInfiniteCycleManager != null) 
      mInfiniteCycleManager.onWindowFocusChanged(hasWindowFocus); 
     super.onWindowFocusChanged(hasWindowFocus); 
    } 

    @Override 
    protected void onDetachedFromWindow() { 
     if (mInfiniteCycleManager != null) mInfiniteCycleManager.stopAutoScroll(); 
     super.onDetachedFromWindow(); 
    } 

    @Override 
    public void setCurrentItem(final int item) { 
     setCurrentItem(item, true); 
    } 

    @Override 
    public void setCurrentItem(final int item, final boolean smoothScroll) { 
     if (mInfiniteCycleManager != null) 
      super.setCurrentItem(mInfiniteCycleManager.setCurrentItem(item), true); 
    } 

    public int getRealItem() { 
     return mInfiniteCycleManager == null ? 
       getCurrentItem() : mInfiniteCycleManager.getRealItem(); 
    } 

    public int getState() { 
     return mInfiniteCycleManager == null ? 
       ViewPager.SCROLL_STATE_IDLE : mInfiniteCycleManager.getState(); 
    } 

    public void notifyDataSetChanged() { 
     if (mInfiniteCycleManager != null) mInfiniteCycleManager.notifyDataSetChanged(); 
    } 

    public void invalidateTransformer() { 
     if (mInfiniteCycleManager != null) mInfiniteCycleManager.invalidateTransformer(); 
    } 

    public void postInvalidateTransformer() { 
     if (mInfiniteCycleManager != null) mInfiniteCycleManager.postInvalidateTransformer(); 
    } 

    public void startAutoScroll(final boolean isAutoScrollPositive) { 
     if (mInfiniteCycleManager != null) mInfiniteCycleManager.startAutoScroll(isAutoScrollPositive); 
    } 

    public void stopAutoScroll() { 
     if (mInfiniteCycleManager != null) mInfiniteCycleManager.stopAutoScroll(); 
    } 
}