Geek asks and answers

Scrolling web view inside scroll

What I have:
Right now I have a scroll view as a parent. Inside this scroll, I use a WebView that loads the url and then shows the text in it. Here is my xml:

<ScrollView
    android:id="@+id/parentScroll"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_below="@+id/Heading" >

    <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:padding="5dp" >

        <WebView
            android:id="@+id/webView"
            android:layout_width="match_parent"
            android:layout_height="300dp"
            android:background="@drawable/webview" />
    </RelativeLayout>
</ScrollView>

What I want:
I want to scroll the webView inside it. When I touch the web browser, unfortunately, it calls the parent scroll call. I should also view the scroll of the parent element, but besides this I want to scroll the contents of the WebView inside it when I touch the webView.

How can i do this?

+5
source share
4 answers

Create a custom touchview webview

CustomWebview.java

 package com.mypackage.common.custom.android.widgets

public class CustomWebview extends WebView {

    public CustomWebview(Context context) {
        super(context);
    }

    public CustomWebview(Context context, AttributeSet attrs) {
        super(context, attrs);
    }

    public CustomWebview(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
    }

    @Override
    public boolean onTouchEvent(MotionEvent event){
        requestDisallowInterceptTouchEvent(true);
        return super.onTouchEvent(event);
    }          
}

layout.xml

<com.package.custom.widgets.CustomWebview
                android:id="@+id/view_extra"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                 />
+6

Android , . .

+4

. , webView Height . :
onCreate Activity:

webView.setWebViewClient(new WebViewClient() {
            @Override
            public void onPageFinished(WebView view, String url) {
                webView.loadUrl("javascript:MyApp.resize(document.body.getBoundingClientRect().height)");

                super.onPageFinished(view, url);
            }
        });
webView.addJavascriptInterface(this, "MyApp");

:

@JavascriptInterface
    public void resize(final float height) {
        MainActivity.this.runOnUiThread(new Runnable() {
            @Override
            public void run() {
                webView.setLayoutParams(new LinearLayout.LayoutParams(getResources().getDisplayMetrics().widthPixels, (int) (height * getResources().getDisplayMetrics().density)));
            }
        });
    }
+2

. , . , , . , ? ?

, , , . , iffy, . (IE: , .)

, , . 1 . , .

To express how it suck. Take a look at this example. This is not a solution, but simply a show of experience.

<ScrollView
    android:id="@+id/parentScroll"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_below="@+id/Heading" >

<LinearLayout
    android:layout_width="match_parent"
    android:layout_height="match_parent" android:orientation="vertical"
    android:padding="5dp" >
    <TextView
        android:id="@+id/topText"
        android:layout_width="match_parent"
        android:layout_height="1000dp"
        android:text="@string/lotsoftext" />
    <WebView
        android:id="@+id/webView"
        android:layout_width="match_parent"
        android:layout_height="300dp"
        android:background="@drawable/webview" />
    <TextView
        android:id="@+id/topText"
        android:layout_width="match_parent"
        android:layout_height="1000dp"
        android:text="@string/lotsoftext" />
</RelativeLayout>

0
source

More articles:


All Articles