另一个scrollview内的scrollview不起作用

Question

I have added vertical scrollview to another existing vertical scrollview in Layout(xml) file. But it is not working. Only outer scrollview is working .

<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_height="wrap_content"
android:layout_width="fill_parent">
<LinearLayout
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:id="@+id/outer_linear_layout"
    android:orientation="vertical"
    android:isScrollContainer="true">
    <RelativeLayout
        android:id="@+id/blue_bg_layout_sa"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:background="@drawable/bluebg_320_568">
        <ImageView
            android:id="@+id/logo_img_view_sa"
            android:layout_height="150dp"
            android:layout_width="250dp"
            android:layout_marginTop="20dp"
            android:background="@drawable/logo_home_250_150"
            android:layout_centerHorizontal="true" />
        <ScrollView
            android:id="@+id/claim_tiles_scroll_view"
            android:layout_width="fill_parent"
            android:layout_height="fill_parent"
            android:layout_below="@id/logo_img_view_sa">
            <LinearLayout
                android:orientation="vertical"
                android:layout_width="wrap_content"
                android:layout_height="300dp">
            <ImageView
                android:id="@+id/windshield_btn"
                android:layout_height="87dp"
                android:layout_width="105dp"
                android:layout_marginTop="5dp"
                android:background="@drawable/windshield_105_87"
                android:onClick="showClaimForm"/>
            <TextView
                android:id="@+id/windshield_btn_lbl"
                android:layout_width="105dp"
                android:layout_height="20dp"
                android:text="@string/windshield"
                android:textColor="@android:color/white"
                android:layout_below="@id/windshield_btn"
                android:layout_alignStart="@id/windshield_btn"
                android:textSize="@dimen/system12"
                android:gravity="center"/>
            <ImageView
                android:id="@+id/pdr_btn"
                android:layout_height="87dp"
                android:layout_width="105dp"
                android:layout_marginTop="5dp"
                android:background="@drawable/pdr_105_87"
                android:onClick="showClaimForm"/>
            <TextView
                android:id="@+id/pdr_btn_lbl"
                android:layout_width="105dp"
                android:layout_height="20dp"
                android:text="@string/pdr"
                android:textColor="@android:color/white"
                android:layout_below="@id/pdr_btn"
                android:layout_alignStart="@id/pdr_btn"
                android:textSize="@dimen/system12"
                android:gravity="center"/>
            <ImageView
                android:id="@+id/tire_btn"
                android:layout_height="87dp"
                android:layout_width="105dp"
                android:layout_marginTop="5dp"
                android:background="@drawable/tire_105_87"
                android:onClick="showClaimForm"/>
            <TextView
                android:id="@+id/tire_btn_lbl"
                android:layout_width="105dp"
                android:layout_height="20dp"
                android:text="@string/pdr"
                android:textColor="@android:color/white"
                android:layout_below="@id/tire_btn"
                android:layout_alignStart="@id/tire_btn"
                android:textSize="@dimen/system12"
                android:gravity="center"/>
            <ImageView
                android:id="@+id/wheel_btn"
                android:layout_height="87dp"
                android:layout_width="105dp"
                android:layout_marginTop="5dp"
                android:background="@drawable/wheel_105_87"
                android:onClick="showClaimForm"/>
            <TextView
                android:id="@+id/wheel_btn_lbl"
                android:layout_width="105dp"
                android:layout_height="20dp"
                android:text="@string/wheel"
                android:textColor="@android:color/white"
                android:layout_below="@id/wheel_btn"
                android:layout_alignStart="@id/wheel_btn"
                android:textSize="@dimen/system12"
                android:gravity="center"/>
            <ImageView
                android:id="@+id/key_btn"
                android:layout_height="87dp"
                android:layout_width="105dp"
                android:layout_marginTop="5dp"
                android:background="@drawable/key_replacement_105_87"
                android:onClick="showClaimForm"/>
            <TextView
                android:id="@+id/key_btn_lbl"
                android:layout_width="105dp"
                android:layout_height="20dp"
                android:text="@string/key"
                android:textColor="@android:color/white"
                android:layout_below="@id/key_btn"
                android:layout_alignStart="@id/key_btn"
                android:textSize="@dimen/system12"
                android:gravity="center"/>
            <ImageView
                android:id="@+id/gap_btn"
                android:layout_height="87dp"
                android:layout_width="105dp"
                android:layout_marginTop="5dp"
                android:background="@drawable/gap_105_87"
                android:onClick="showClaimForm"/>
            <TextView
                android:id="@+id/gap_btn_lbl"
                android:layout_width="105dp"
                android:layout_height="20dp"
                android:text="@string/gap"
                android:textColor="@android:color/white"
                android:layout_below="@id/gap_btn"
                android:layout_alignStart="@id/gap_btn"
                android:textSize="@dimen/system12"
                android:gravity="center"/>
            <ImageView
                android:id="@+id/interior_btn"
                android:layout_height="87dp"
                android:layout_width="105dp"
                android:layout_marginTop="5dp"
                android:background="@drawable/interior_protection_105_87"
                android:onClick="showClaimForm"/>
            <TextView
                android:id="@+id/interior_btn_lbl"
                android:layout_width="105dp"
                android:layout_height="20dp"
                android:text="@string/interior"
                android:textColor="@android:color/white"
                android:layout_below="@id/interior_btn"
                android:layout_alignStart="@id/interior_btn"
                android:textSize="@dimen/system12"
                android:gravity="center"/>
            <ImageView
                android:id="@+id/exterior_btn"
                android:layout_height="87dp"
                android:layout_width="105dp"
                android:layout_marginTop="5dp"
                android:background="@drawable/exterior_protection_105_87"
                android:onClick="showClaimForm"/>
            <TextView
                android:id="@+id/exterior_btn_lbl"
                android:layout_width="105dp"
                android:layout_height="20dp"
                android:text="@string/exterior"
                android:textColor="@android:color/white"
                android:layout_below="@id/exterior_btn"
                android:layout_alignStart="@id/exterior_btn"
                android:textSize="@dimen/system12"
                android:gravity="center"/>
            <ImageView
                android:id="@+id/theft_btn"
                android:layout_height="87dp"
                android:layout_width="105dp"
                android:layout_marginTop="5dp"
                android:background="@drawable/theft_105_87"
                android:onClick="showClaimForm"/>
            <TextView
                android:id="@+id/theft_btn_lbl"
                android:layout_width="105dp"
                android:layout_height="20dp"
                android:text="@string/theft"
                android:textColor="@android:color/white"
                android:layout_below="@id/theft_btn"
                android:layout_alignStart="@id/theft_btn"
                android:textSize="@dimen/system12"
                android:gravity="center"/>
            </LinearLayout>
        </ScrollView>
    </RelativeLayout>
 </LinearLayout>

Please provide help with proper answer. Thanks in advance

Answer 1

You can't do it!

As the documentation says:

A ScrollView is a FrameLayout, meaning you should place one child in it containing the entire contents to scroll

If you try it, you should get this exception:

IllegalStateException "Scrollview can host only one direct child"

One solution can be to add a LinearLayout as a direct child and then put the other ScrollView inside it.

Answer 2

Add "android:fillViewport" to attribute to your parent ScrollView and set it to true. So they look like this.

<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_height="wrap_content"
android:layout_width="fill_parent"
android:fillViewport="true">

Answer 3

You cannot provide scrolling within scrollable view. This applies to all views. Eg 1.ScrollView As Parent and LisView as child or vice versa. 2.ScrollView as Parent and GridView as child or vice versa. 3.ScrollView within ScrollView.

Solution:-

The Only Solution to This Scrolling Problem is:--

-->You need to Calculate the Inner ScrollView's Length and make it that large.