CODEWITHSUNDEEP
android
Streetboy
Streetboy

Reputation: 4401

ScrollView can host only one direct child exception

I want to add images to scrollview, there is code i tried to use:

        ScrollView sv = (ScrollView)findViewById( R.id.scrollView2);
        ImageView iv = new ImageView(this);
        iv.setImageDrawable( new BitmapDrawable( "PATH" ) );
        iv.setScaleType( ScaleType.CENTER_INSIDE );
        sv.addView( sv );

I get this exception: java.lang.IllegalStateException: ScrollView can host only one direct child

So how i should add images to my scrollview ?

Added code: xml:

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical">

    <ScrollView
        android:id="@+id/scrollView1"
        android:layout_width="100dp"
        android:layout_height="wrap_content"
        android:layout_alignParentBottom="true"
        android:layout_alignParentLeft="true"
        android:layout_alignParentTop="true"
        android:background="#FF0000" >

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent" >

        </LinearLayout>
    </ScrollView>

    <ScrollView
        android:id="@+id/scrollView2"
        android:layout_width="200dp"
        android:layout_height="wrap_content"
        android:layout_alignParentBottom="true"
        android:layout_alignParentTop="true"
        android:layout_toRightOf="@+id/scrollView1"
        android:background="#FFFF00" >

        <LinearLayout
            android:id="@+id/filesScrollerLayout"
            android:layout_width="match_parent"
            android:layout_height="match_parent" >
        </LinearLayout>
    </ScrollView>

    <ImageView
        android:id="@+id/imageView1"
        android:layout_width="wrap_content"
        android:layout_height="250dp"
        android:layout_alignParentBottom="true"
        android:layout_alignParentRight="true"
        android:background="#FFFFFF"
        android:layout_toRightOf="@+id/scrollView2" />

</RelativeLayout>

And on the end Activity onCreate calling this method:

public void addImage(String path){

            LinearLayout sv = (LinearLayout)findViewById( R.id.filesScrollerLayout);
        ImageView iv = new ImageView(this);
        iv.setImageDrawable( new BitmapDrawable( path ) ); 
        iv.setScaleType( ScaleType.CENTER_INSIDE );
        sv.addView( sv ); 

}

Thanks.

Upvotes: 1

Views: 18135

Answers (1)

ngesh
ngesh

Reputation: 13501

this may help.. it tells so because ScrollView cannot hold more than 1 child.. it needs single child which hosts all other view..

<ScrollView>
<LinearLayout
android:id="@+id/child">
    <ImageView/>
    ...
    ...
</LinearLayout>
</ScrollView>

in your case

LinearLayout child = (LinearLayout)findViewById( R.id.child);
        ImageView iv = new ImageView(this);
        iv.setImageDrawable( new BitmapDrawable( "PATH" ) );
        iv.setScaleType( ScaleType.CENTER_INSIDE );
        child.addView( sv );

Upvotes: 9

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