Android(安卓)ViewPager 中嵌套webview 的滚动处理

1. implement a custom ViewPager Instance like this:

import android.content.Context; <br> import android.support.v4.view.ViewPager; <br> import android.util.AttributeSet; <br> import android.util.Log; <br> import android.view.MotionEvent; public class CustomViewPager extends ViewPager {   private MagazineWebView_WithoutFlipWebView mCurrentPageWebView_; //custom webview   public CustomViewPager(Context context, AttributeSet attrs) {     super(context, attrs);   }   @Override   public boolean onInterceptTouchEvent(MotionEvent event) {     if (Constants.LOGGING) {       Log.v(Constants.LOG_OEAMTC_APP, "CustomViewPager - onInterceptTouchEvent");     }     // if view zoomed out (view starts at 33.12... scale level) ... allow     // zoom within webview, otherwise disallow (allow viewpager to change     // view)     if (mCurrentPageWebView_ != null && (mCurrentPageWebView_.getScale() * 100) > 34) {<br>       Log.v(Constants.LOG_OEAMTC_APP, "CustomViewPager - intrcepted: " + String.valueOf((mCurrentPageWebView_.getScale() * > 100)));<br>       this.requestDisallowInterceptTouchEvent(true);     }     else {       if (mCurrentPageWebView_ != null) {         Log.v(Constants.LOG_OEAMTC_APP,             "CustomViewPager - not intrcepted: " + String.valueOf(mCurrentPageWebView_.getScale() * 100));       }       this.requestDisallowInterceptTouchEvent(false);     }     return super.onInterceptTouchEvent(event);   }   public MagazineWebView_WithoutFlipWebView getCurrentPageWebView() {     return mCurrentPageWebView_;   }   public void setCurrentPageWebView(MagazineWebView_WithoutFlipWebView currentPageWebView) {     mCurrentPageWebView_ = currentPageWebView;   } }

2. in your main (ViewPager) Activity add the following lines to the view pager

mViewPager_ = new AwesomePagerAdapter();<br>     viewpapgerInLayout = (CustomViewPager) findViewById(R.id.awesomepager);<br>     viewpapgerInLayout.setAdapter(mViewPager_);<br>     viewpapgerInLayout.setOnPageChangeListener(new ViewPager.OnPageChangeListener() {<br>             @Override       public void onPageSelected(int position) {          viewpapgerInLayout.setCurrentPageWebView(mLstPagesWebviews_.get(position));       }       @Override       public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {       }       @Override       public void onPageScrollStateChanged(int state) {       }     });

3. finally, run it :=) if the zoom level is at initial zoom, changes pages is allowed, all the other time you can navigate your web view

Ps.: *Don't forget* to change your ViewPager in your *.xml file with the CustomViewPager Class you just created

good luck :)

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edited Jul 26 at 13:17 Asok
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answered Jan 20 at 15:12 cV2
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