Very new to android studio. Trying to make a calculator app in which I can scroll buttons horizontally to get buttons for scientific calculations but it is not working. Here is my xml code. Then I have added this to activity main but my buttons get disappeared from the screen. Tried changing it a few times changing width and height but nothing seems to be working
<?xml version="1.0" encoding="utf-8"?>
<GridLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_margin="2dp"
android:columnCount="4"
android:rowCount="5">
<HorizontalScrollView
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<Button
android:id="@+id/btn_clr"
style="@style/Buttons"
android:layout_width="0dp"
android:layout_row="0"
android:layout_rowWeight="1"
android:layout_column="0"
android:layout_columnWeight="1"
android:layout_marginLeft="2dp"
android:layout_marginTop="2dp"
android:layout_marginRight="2dp"
android:text="C"
android:textColor="#F75D68"
/>
<Button
android:id="@+id/btn_bracket"
style="@style/Buttons"
android:layout_width="0dp"
android:layout_row="0"
android:layout_rowWeight="1"
android:layout_column="1"
android:layout_columnWeight="1"
android:layout_marginLeft="2dp"
android:layout_marginTop="2dp"
android:layout_marginRight="2dp"
android:text="( )" />
<Button
android:id="@+id/btn_prcnt"
style="@style/Buttons"
android:layout_width="0dp"
android:layout_row="0"
android:layout_rowWeight="1"
android:layout_column="2"
android:layout_columnWeight="1"
android:layout_marginLeft="2dp"
android:layout_marginTop="2dp"
android:layout_marginRight="2dp"
android:text="%" />
<Button
android:id="@+id/divide"
style="@style/Buttons"
android:layout_width="0dp"
android:layout_row="0"
android:layout_rowWeight="1"
android:layout_column="3"
android:layout_columnWeight="1"
android:layout_marginLeft="2dp"
android:layout_marginTop="2dp"
android:layout_marginRight="3dp"
android:text="รท" />
<Button
android:id="@+id/multiply"
style="@style/Buttons"
android:layout_width="0dp"
android:layout_row="1"
android:layout_rowWeight="1"
android:layout_column="3"
android:layout_columnWeight="1"
android:layout_marginLeft="2dp"
android:layout_marginTop="2dp"
android:layout_marginRight="3dp"
android:text="X" />
<Button
android:id="@+id/minus"
style="@style/Buttons"
android:layout_width="0dp"
android:layout_row="2"
android:layout_rowWeight="1"
android:layout_column="3"
android:layout_columnWeight="1"
android:layout_marginLeft="2dp"
android:layout_marginTop="2dp"
android:layout_marginRight="3dp"
android:text="-"/>
<Button
android:id="@+id/plus"
style="@style/Buttons"
android:layout_width="0dp"
android:layout_row="3"
android:layout_rowWeight="1"
android:layout_column="3"
android:layout_columnWeight="1"
android:layout_marginLeft="2dp"
android:layout_marginTop="2dp"
android:layout_marginRight="3dp"
android:text="+" />
<Button
android:id="@+id/equal"
style="@style/Buttons"
android:layout_width="0dp"
android:layout_row="4"
android:layout_rowWeight="1"
android:layout_column="3"
android:layout_columnWeight="1"
android:layout_marginLeft="2dp"
android:layout_marginTop="2dp"
android:layout_marginRight="3dp"
android:layout_marginBottom="2dp"
android:background="#2B90FA"
android:text="="
android:textColor="#ffffff" />
<Button
android:id="@+id/one"
style="@style/Buttons"
android:layout_width="0dp"
android:layout_row="3"
android:layout_rowWeight="1"
android:layout_column="0"
android:layout_columnWeight="1"
android:layout_marginLeft="2dp"
android:layout_marginTop="2dp"
android:layout_marginRight="2dp"
android:text="1"
android:textColor="#333333"
/>
<Button
android:id="@+id/two"
style="@style/Buttons"
android:layout_width="0dp"
android:layout_row="3"
android:layout_rowWeight="1"
android:layout_column="1"
android:layout_columnWeight="1"
android:layout_marginLeft="2dp"
android:layout_marginTop="2dp"
android:layout_marginRight="2dp"
android:text="2"
android:textColor="#010F14" />
<Button
android:id="@+id/three"
style="@style/Buttons"
android:layout_width="0dp"
android:layout_row="3"
android:layout_rowWeight="1"
android:layout_column="2"
android:layout_columnWeight="1"
android:layout_marginLeft="2dp"
android:layout_marginTop="2dp"
android:layout_marginRight="2dp"
android:text="3"
android:textColor="#333333" />
<Button
android:id="@+id/four"
style="@style/Buttons"
android:layout_width="0dp"
android:layout_row="2"
android:layout_rowWeight="1"
android:layout_column="0"
android:layout_columnWeight="1"
android:layout_marginLeft="2dp"
android:layout_marginTop="2dp"
android:layout_marginRight="2dp"
android:text="4"
android:textColor="#333333" />
<Button
android:id="@+id/five"
style="@style/Buttons"
android:layout_width="0dp"
android:layout_row="2"
android:layout_rowWeight="1"
android:layout_column="1"
android:layout_columnWeight="1"
android:layout_marginLeft="2dp"
android:layout_marginTop="2dp"
android:layout_marginRight="2dp"
android:text="5"
android:textColor="#333333" />
<Button
android:id="@+id/six"
style="@style/Buttons"
android:layout_width="0dp"
android:layout_row="2"
android:layout_rowWeight="1"
android:layout_column="2"
android:layout_columnWeight="1"
android:layout_marginLeft="2dp"
android:layout_marginTop="2dp"
android:layout_marginRight="2dp"
android:text="6"
android:textColor="#333333" />
<Button
android:id="@+id/seven"
style="@style/Buttons"
android:layout_width="0dp"
android:layout_row="1"
android:layout_rowWeight="1"
android:layout_column="0"
android:layout_columnWeight="1"
android:layout_marginLeft="2dp"
android:layout_marginTop="2dp"
android:layout_marginRight="2dp"
android:text="7"
android:textColor="#333333" />
<Button
android:id="@+id/eight"
style="@style/Buttons"
android:layout_width="0dp"
android:layout_row="1"
android:layout_rowWeight="1"
android:layout_column="1"
android:layout_columnWeight="1"
android:layout_marginLeft="2dp"
android:layout_marginTop="2dp"
android:layout_marginRight="2dp"
android:text="8"
android:textColor="#333333" />
<Button
android:id="@+id/nine"
style="@style/Buttons"
android:layout_width="0dp"
android:layout_row="1"
android:layout_rowWeight="1"
android:layout_column="2"
android:layout_columnWeight="1"
android:layout_marginLeft="2dp"
android:layout_marginTop="2dp"
android:layout_marginRight="2dp"
android:text="9"
android:textColor="#333333" />
<Button
android:id="@+id/d_zero"
style="@style/Buttons"
android:layout_width="0dp"
android:layout_row="4"
android:layout_rowWeight="1"
android:layout_column="1"
android:layout_columnWeight="1"
android:layout_marginLeft="2dp"
android:layout_marginTop="2dp"
android:layout_marginRight="2dp"
android:layout_marginBottom="2dp"
android:text="00"
android:textColor="#333333" />
<Button
android:id="@+id/zero"
style="@style/Buttons"
android:layout_width="0dp"
android:layout_row="4"
android:layout_rowWeight="1"
android:layout_column="0"
android:layout_columnWeight="1"
android:layout_marginLeft="2dp"
android:layout_marginTop="2dp"
android:layout_marginRight="2dp"
android:layout_marginBottom="2dp"
android:text="0"
android:textColor="#333333" />
<Button
android:id="@+id/pt"
style="@style/Buttons"
android:layout_width="0dp"
android:layout_row="4"
android:layout_rowWeight="1"
android:layout_column="2"
android:layout_columnWeight="1"
android:layout_marginLeft="2dp"
android:layout_marginTop="2dp"
android:layout_marginRight="2dp"
android:layout_marginBottom="2dp"
android:text="."
android:textColor="#333333" />
</HorizontalScrollView>
</GridLayout>
