Android 如何在ViewPager内水平滚动webview?
我有一个viewpager,其中每个页面都必须显示不同的Web视图。这个WebView应该允许horizontall scrool,我想在滚动结束时滑动到下一页 我已经搜索并找到了一些解决方案,但我没有解决这个问题。我有一个CustomViewPager和一个CustomWebView来处理滚动事件 这是我的代码: 自定义浏览页面Android 如何在ViewPager内水平滚动webview?,android,webview,scroll,android-viewpager,Android,Webview,Scroll,Android Viewpager,我有一个viewpager,其中每个页面都必须显示不同的Web视图。这个WebView应该允许horizontall scrool,我想在滚动结束时滑动到下一页 我已经搜索并找到了一些解决方案,但我没有解决这个问题。我有一个CustomViewPager和一个CustomWebView来处理滚动事件 这是我的代码: 自定义浏览页面 public class WebViewPager extends ViewPager { public WebViewPager(Context cont
public class WebViewPager extends ViewPager {
public WebViewPager(Context context, AttributeSet attrs) {
super(context, attrs);
}
@Override
protected boolean canScroll(View v, boolean checkV, int dx, int x, int y) {
if (v instanceof ExtendedWebView) {
return ((ExtendedWebView) v).canScrollHor(-dx);
} else {
return super.canScroll(v, checkV, dx, x, y);
}
}
}
mViewPager_ = new AwesomePagerAdapter();
viewpapgerInLayout = (CustomViewPager) findViewById(R.id.awesomepager);
viewpapgerInLayout.setAdapter(mViewPager_);
viewpapgerInLayout.setOnPageChangeListener(new ViewPager.OnPageChangeListener() {
@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) {
}
});
自定义网络视图
public class ExtendedWebView extends WebView {
public ExtendedWebView(Context context) {
super(context);
}
public ExtendedWebView(Context context, AttributeSet attrs) {
super(context, attrs);
}
public boolean canScrollHor(int direction) {
final int offset = computeHorizontalScrollOffset();
final int range = computeHorizontalScrollRange() - computeHorizontalScrollExtent();
if (range == 0)
return false;
if (direction < 0) {
return offset > 0;
} else {
return offset < range - 1;
}
}
}
public类ExtendedWebView扩展WebView{
公共扩展WebView(上下文){
超级(上下文);
}
公共扩展WebView(上下文、属性集属性){
超级(上下文,attrs);
}
公共布尔值(整数方向){
最终整数偏移=计算水平滚动偏移();
最终整数范围=computeHorizontalScrollRange()-computeHorizontalScrollExtent();
如果(范围==0)
返回false;
如果(方向<0){
返回偏移量>0;
}否则{
返回偏移量<范围-1;
}
}
}
ScreenSlidePagerActivity
public class ScreenSlidePagerActivity extends FragmentActivity {
class MyPageAdapter extends FragmentPagerAdapter {
private List<Fragment> fragments;
private List<String> titles;
public MyPageAdapter(FragmentManager fm) {
super(fm);
this.fragments = new ArrayList<Fragment>();
this.titles = new ArrayList<String>();
}
public void addItem(String url, String title) {
Fragment myFragment = new WebViewFragment();
Bundle args = new Bundle();
args.putString("url", url);
myFragment.setArguments(args);
this.fragments.add(myFragment);
this.titles.add(title);
}
@Override
public Fragment getItem(int position) {
return this.fragments.get(position);
}
public CharSequence getPageTitle(int position) {
return this.titles.get(position);
}
@Override
public int getCount() {
return this.fragments.size();
}
}
private MyPageAdapter pageAdapter = null;
private WebViewPager pager = null;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
pageAdapter = new MyPageAdapter(getSupportFragmentManager());
pageAdapter.addItem("url1", "WebView 1");
pageAdapter.addItem("url2", "WebView 2");
pageAdapter.addItem("url3", "WebView 3");
pager = (WebViewPager) findViewById(R.id.pager);
pager.setOffscreenPageLimit(pageAdapter.getCount() - 1);
pager.setAdapter(pageAdapter);
}
}
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:paddingBottom="0dp"
android:paddingLeft="0dp"
android:paddingRight="0dp"
android:paddingTop="0dp"
tools:context=".MainActivity" >
<com.example.viewpagerexample.WebViewPager
android:id="@+id/pager"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="6dp"
android:paddingTop="0dp" >
<android.support.v4.view.PagerTabStrip
android:id="@+id/pager_header"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="top"
android:background="#fff"
android:paddingBottom="0dp"
android:paddingLeft="0dp"
android:paddingRight="0dp"
android:paddingTop="0dp"
android:textColor="#000" />
</com.example.viewpagerexample.WebViewPager>
</LinearLayout>
公共类ScreenSlidePagerActivity扩展了FragmentActivity{
类MyPageAdapter扩展了FragmentPagerAdapter{
私有列表片段;
私人名单标题;
公共MyPageAdapter(FragmentManager fm){
超级(fm);
this.fragments=new ArrayList();
this.titles=新的ArrayList();
}
公共void附加项(字符串url、字符串标题){
Fragment myFragment=新的WebViewFragment();
Bundle args=新Bundle();
args.putString(“url”,url);
myFragment.setArguments(args);
this.fragments.add(myFragment);
本.titles.add(title);
}
@凌驾
公共片段getItem(int位置){
返回此.fragments.get(位置);
}
公共字符序列getPageTitle(int位置){
返回此.titles.get(位置);
}
@凌驾
public int getCount(){
返回此.fragments.size();
}
}
私有MyPageAdapter pageAdapter=null;
private WebViewPager pager=null;
@凌驾
创建时受保护的void(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
pageAdapter=新的MyPageAdapter(getSupportFragmentManager());
pageAdapter.addItem(“url1”、“WebView 1”);
pageAdapter.addItem(“url2”、“WebView 2”);
pageAdapter.addItem(“url3”、“WebView 3”);
pager=(WebViewPager)findViewById(R.id.pager);
setOffscreenPageLimit(pageAdapter.getCount()-1);
寻呼机设置适配器(pageAdapter);
}
}
活动的布局
public class ScreenSlidePagerActivity extends FragmentActivity {
class MyPageAdapter extends FragmentPagerAdapter {
private List<Fragment> fragments;
private List<String> titles;
public MyPageAdapter(FragmentManager fm) {
super(fm);
this.fragments = new ArrayList<Fragment>();
this.titles = new ArrayList<String>();
}
public void addItem(String url, String title) {
Fragment myFragment = new WebViewFragment();
Bundle args = new Bundle();
args.putString("url", url);
myFragment.setArguments(args);
this.fragments.add(myFragment);
this.titles.add(title);
}
@Override
public Fragment getItem(int position) {
return this.fragments.get(position);
}
public CharSequence getPageTitle(int position) {
return this.titles.get(position);
}
@Override
public int getCount() {
return this.fragments.size();
}
}
private MyPageAdapter pageAdapter = null;
private WebViewPager pager = null;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
pageAdapter = new MyPageAdapter(getSupportFragmentManager());
pageAdapter.addItem("url1", "WebView 1");
pageAdapter.addItem("url2", "WebView 2");
pageAdapter.addItem("url3", "WebView 3");
pager = (WebViewPager) findViewById(R.id.pager);
pager.setOffscreenPageLimit(pageAdapter.getCount() - 1);
pager.setAdapter(pageAdapter);
}
}
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:paddingBottom="0dp"
android:paddingLeft="0dp"
android:paddingRight="0dp"
android:paddingTop="0dp"
tools:context=".MainActivity" >
<com.example.viewpagerexample.WebViewPager
android:id="@+id/pager"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="6dp"
android:paddingTop="0dp" >
<android.support.v4.view.PagerTabStrip
android:id="@+id/pager_header"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="top"
android:background="#fff"
android:paddingBottom="0dp"
android:paddingLeft="0dp"
android:paddingRight="0dp"
android:paddingTop="0dp"
android:textColor="#000" />
</com.example.viewpagerexample.WebViewPager>
</LinearLayout>
更新
只有在我将此参数放入网页的CSS中时,接受的答案才起作用:
显示:表格代码>
显然,如果没有此参数,WebView将无法计算其内容的宽度。为您的WebView设置以下属性
<your.package.name.MyWebView
android:id="@+id/webview"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
/>
1。实现如下自定义ViewPager实例:
import android.content.Context;
import android.support.v4.view.ViewPager;
import android.util.AttributeSet;
import android.util.Log;
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) {
Log.v(Constants.LOG_OEAMTC_APP, "CustomViewPager - intrcepted: " + String.valueOf((mCurrentPageWebView_.getScale() * > 100)));
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。在主(查看页面)活动中,将以下行添加到查看页面
public class WebViewPager extends ViewPager {
public WebViewPager(Context context, AttributeSet attrs) {
super(context, attrs);
}
@Override
protected boolean canScroll(View v, boolean checkV, int dx, int x, int y) {
if (v instanceof ExtendedWebView) {
return ((ExtendedWebView) v).canScrollHor(-dx);
} else {
return super.canScroll(v, checkV, dx, x, y);
}
}
}
mViewPager_ = new AwesomePagerAdapter();
viewpapgerInLayout = (CustomViewPager) findViewById(R.id.awesomepager);
viewpapgerInLayout.setAdapter(mViewPager_);
viewpapgerInLayout.setOnPageChangeListener(new ViewPager.OnPageChangeListener() {
@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。最后,运行它:=)如果缩放级别为初始缩放,
允许更改网页,所有其他时间您都可以浏览web视图
或者,您也可以扩展您的网络视图,但不能同时扩展这两个视图
@Override
public boolean onInterceptTouchEvent(MotionEvent p_event)
{
return true;
}
@Override
public boolean onTouchEvent(MotionEvent p_event)
{
if (p_event.getAction() == MotionEvent.ACTION_MOVE && getParent() != null)
{
getParent().requestDisallowInterceptTouchEvent(true);
}
return super.onTouchEvent(p_event);
}
首先,您测试过这个解决方案吗?我在这里看到了一个和你一样的解决方案,我试过了,但没有成功。你真的只是复制并粘贴了这个问题的答案:?ps:我不想根据zomm的级别滚动webview。我也有同样的问题。它修复了它。您可以编写一个javascript方法(在您的网页中,如果您有权访问它),并查看是否有更多的滚动可用。如果web视图滚动不可用,请启用viewPager.Ok。无论如何,谢谢你。我以前已经尝试过这个解决方案,但它对我不起作用。只有当我在WebView(display:table)的CSS中放入一个参数时,它才起作用。显然,没有这个参数,WebVIEW不能计算它的内容的宽度。请考虑用您的解决方案更新您的问题,包括CSS或任何有助于社区的信息。这个解决方案不起作用…N请不要在论坛上创建重复的答案。