Here's a partial layout for your case. Use the layout_below along with
RightOf and the text for the minus button was "+".
If you don't use that, then all of them are to the right of the
specified layout id , but not below the same parent as the id's
parent.
<Button
android:id = "@+id/bu1m"
android:layout_width="70sp"
android:layout_height="wrap_content"
android:text = "-1"
android:layout_below="@id/nums"
android:layout_toRightOf="@id/bu1p"
/>
You can also use a LinearLayout to represent you horizontal elements,
and specify the layout_below at this level.(ie. Plus and Minus button
in horizontal linear layout which is below the TextView)
Tip: Move the common attributes of a View to a style.xml file so that
you can change all of them in one go.
style="@style/button_style" where button_style is defined in
style.xml
On Dec 30, 8:02 am, Jonathan Nalewajek <[email protected]> wrote:
> A little background info: I am a C++ developer who has worked very
> little with Java. Picking up Java wasn't very difficult since I know C+
> +, but I am still playing around with the SDK. (In C++, my favorite
> SDK/API is Qt)
>
> Anyway, I am trying to stick to the Model-View-Controller design
> philosophy, and was setting up the UI in XML. However, it is not
> working out the way I wanted it too. I am trying to write a simple app
> (to help get started with learning the SDK), where there are 4
> buttons, all of which cause a different operation on a value in a
> textview. For example, the textview starts out at 100, and I have 4
> buttons: +1, -1, +5, -5. When you press +1, it adds 1 to the value in
> the textview. When you press -5, it subtracts 5 from the value in the
> textview, etc etc...
>
> That part is working fine. However, I am trying to setup the UI as
> follows:
>
> [TextView]
> [+1] [-1]
> [+5] [-5]
>
> Basically, I want all the + in one column, and all the - in another
> column. I figured I would use a relativeLayout, however, it is not
> working the way I want it to. I am getting the following
> [TextView] [-5]
> [+1]
> [+5]
> (the -1 button is totally missing)
>
> I have tried to narrow down possible errors in my code, and I have
> come to the conclusion that either I am using android:layout_toRightOf
> wrong, or I misunderstand how this command is implemented.
>
> Here is my main.xml file:
> (note: bu1p = button for +1, bu1m = button for -1 [p=positive
> m=minus]. I also have a custom button in there, so there are really 6
> buttons in total)
>
> <?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"
> >
> <TextView
> android:id = "@+id/nums"
> android:layout_width="fill_parent"
> android:layout_height="wrap_content"
> android:textSize = "20sp"
> android:text = "100"
> />
> <Button
> android:id = "@+id/bu1p"
> android:layout_width="70sp"
> android:layout_height="wrap_content"
> android:text = "+1"
> android:layout_below="@id/nums"
> />
> <Button
> android:id = "@+id/bu1m"
> android:layout_width="70sp"
> android:layout_height="wrap_content"
> android:text = "+1"
> android:layout_toRightOf="@id/bu1p"
> />
>
> <Button
> android:id = "@+id/bu5p"
> android:layout_width="70sp"
> android:layout_height="wrap_content"
> android:text = "+5"
> android:layout_below="@id/bu1p"
> />
> <Button
> android:id = "@+id/bu5m"
> android:layout_width="70sp"
> android:layout_height="wrap_content"
> android:text = "-5"
> android:layout_toRightOf="@id/bucm"
> />
> <Button
> android:id = "@+id/bucp"
> android:layout_width="70sp"
> android:layout_height="wrap_content"
> android:text = "Custom"
> android:layout_below="@id/bu5p"
> />
> <Button
> android:id = "@+id/bucm"
> android:layout_width="70sp"
> android:layout_height="wrap_content"
> android:text = "Custom"
> android:layout_toRightOf="@id/bu5p"
> />
> </RelativeLayout>
>
> Again, just to clarify, this is how I want the UI to look:
> [TextView]
> [+1] [-1]
> [+5] [-5]
> [+c] [-c]
>
> (c is the custom value)
>
> Any help is greatly appreciated. Sorry for the weird tab formatting,
> it didn't copy over correctly from Eclipse.
>
> Thank you,
> Jon
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