androidgridviewcrashscrollviewandroid-linearlayout
Scroll view not working with Grid view and linear layout
I've been trying to implement a scroll view into my existing code however when i attempt to do so, the app crashes. I have tried to add a linear view first, then the scroll view but i don't think i have done this correctly. I think there is an error with the layout weights but I'm not too sure. Any help at all would be much appreciated.
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin">
<ScrollView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:scrollbars="none">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="2">
<TextView
android:id="@+id/text1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_alignParentTop="true"
android:layout_marginLeft="59dp"
android:layout_marginStart="59dp"
android:layout_marginTop="16dp"
android:textSize="20sp"
android:textStyle="bold" />
</RelativeLayout>
<GridLayout
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="8"
android:alignmentMode="alignMargins"
android:columnCount="2"
android:columnOrderPreserved="false"
android:padding="14dp"
android:rowCount="3">
<!--Row 1 -->
<!--column 1 -->
<android.support.v7.widget.CardView
android:layout_width="0dp"
android:layout_height="0dp"
android:layout_columnWeight="1"
android:layout_marginBottom="16dp"
android:layout_marginLeft="16dp"
android:layout_marginRight="16dp"
android:layout_rowWeight="1"
app:cardCornerRadius="8dp"
app:cardElevation="8dp">
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal|center_vertical"
android:layout_margin="16dp"
android:orientation="vertical">
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:background="@color/colorTextHint"
android:src="@drawable/logo" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="ME"
android:textAlignment="center"
android:textColor="@android:color/black"
android:textSize="18sp"
android:textStyle="bold"
/>
</LinearLayout>
</android.support.v7.widget.CardView>
<!--Row 1 -->
<!--column 2 -->
<android.support.v7.widget.CardView
android:layout_width="0dp"
android:layout_height="0dp"
android:layout_columnWeight="1"
android:layout_marginBottom="16dp"
android:layout_marginLeft="16dp"
android:layout_marginRight="16dp"
android:layout_rowWeight="1"
app:cardCornerRadius="8dp"
app:cardElevation="8dp">
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal|center_vertical"
android:layout_margin="16dp"
android:orientation="vertical">
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:src="@drawable/logo" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="ME"
android:textAlignment="center"
android:textColor="@android:color/black"
android:textSize="18sp"
android:textStyle="bold"
/>
</LinearLayout>
</android.support.v7.widget.CardView>
</GridLayout>
</ScrollView>
</LinearLayout>
Solution
Your ScrollView contains several children objects, but it can only contain one children object. However, these children's objects may in turn receive children's objects.
Hope that helps you and I have made no mistake now.
edit:
<?xml version="1.0" encoding="utf-8"?>
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:scrollbars="none">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:id="@+id/text1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_alignParentTop="true"
android:layout_marginLeft="59dp"
android:layout_marginStart="59dp"
android:layout_marginTop="16dp"
android:text="23452345345edfsdf"
android:textSize="20sp"
android:textStyle="bold" />
</RelativeLayout>
<GridLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:alignmentMode="alignMargins"
android:columnCount="2"
android:columnOrderPreserved="false"
android:padding="14dp"
android:rowCount="3">
<!--Row 1 -->
<!--column 1 -->
<android.support.v7.widget.CardView
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_columnWeight="1"
android:layout_marginBottom="16dp"
android:layout_marginLeft="16dp"
android:layout_marginRight="16dp"
android:layout_rowWeight="1"
app:cardCornerRadius="8dp"
app:cardElevation="8dp">
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal|center_vertical"
android:layout_margin="16dp"
android:orientation="vertical">
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:src="@mipmap/ic_launcher" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="ME"
android:textAlignment="center"
android:textColor="@android:color/black"
android:textSize="18sp"
android:textStyle="bold" />
</LinearLayout>
</android.support.v7.widget.CardView>
<!--Row 1 -->
<!--column 2 -->
<android.support.v7.widget.CardView
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_columnWeight="1"
android:layout_marginBottom="16dp"
android:layout_marginLeft="16dp"
android:layout_marginRight="16dp"
android:layout_rowWeight="1"
app:cardCornerRadius="8dp"
app:cardElevation="8dp">
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal|center_vertical"
android:layout_margin="16dp"
android:orientation="vertical">
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:src="@mipmap/ic_launcher" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="ME"
android:textAlignment="center"
android:textColor="@android:color/black"
android:textSize="18sp"
android:textStyle="bold" />
</LinearLayout>
</android.support.v7.widget.CardView>
</GridLayout>
</LinearLayout>
</ScrollView>
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