Android ViewPager 中嵌套webview 的滾動處理

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 37610

answered Jan 20 at 15:12 cV2 631414