Add buttons dynamically

Question

I want to write my first android app using the Android Studio and getting some problems.

I want to write a quizapp and for each answer I want to add a button. But the count of the answers should not be the same for each answer. Thats why I want to add the buttons dynamically. I saw some sample code where the buttons are added via code.

Is there any way where I DONT have to add each button via code? I'm thinking about a way like in WPF where I have a list with answers in my viewmodel and my xaml is generating the buttons (e.g. ListView with ItemTemplate) automatically.

Thx to MattMatt for answering my question!

you can add button dynamically create button object and add to root layout — Gaurav, Dec 14 '15 at 10:18
http://stackoverflow.com/questions/1851633/how-to-add-a-button-dynamically-in-android?rq=1 — Shubham Jain, Dec 14 '15 at 10:18
Changed my answer to make it more clearly. Like I write some times, I asked for a way without adding any button via code.... — Mighty Badaboom, Dec 14 '15 at 10:26
We do not want start your code of zero, try to do your code and then show us your problems please, thanks. — Merlí Escarpenter Pérez, Dec 14 '15 at 10:28
I don't want you to write me the code i just want to know if there is any way without adding each button via code.... — Mighty Badaboom, Dec 14 '15 at 10:48

score 1 · Accepted Answer · edited May 23 '17 at 12:23

1

On the Android platform, a Button is a specific widget that is intended to perform a specific action when clicked. You describe a need for a dynamic number of buttons in a list format, for this you should use a RecyclerView, which would allow you to bind data to the number of clickable items.

If you want the appearance of each item in the RecyclerView list to look like a button, you can style the XML row item to look like one by inheriting the style from the built-in Button widget. This question asks how to style items with a background to provide Button-like visual states.

edited May 23 '17 at 12:23

Community

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answered Dec 14 '15 at 10:26

MattMatt

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Thanks! And thank you for reading my question to the end. That's exactly what I wanted to know. – Mighty Badaboom Dec 14 '15 at 10:52

score 0 · Answer 2 · edited May 23 '17 at 11:52

LinearLayout layout = (LinearLayout) findViewById(R.id.linear_layout_tags);
layout.setOrientation(LinearLayout.VERTICAL);  //Can also be done in xml by  android:orientation="vertical"

for (int i = 0; i < 3; i++) {
    LinearLayout row = new LinearLayout(this);
    row.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT));

    for (int j = 0; j < 4; j++ {
        Button btnTag = new Button(this);
        btnTag.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT));
        btnTag.setText("Button " + (j + 1 + (i * 4));
        btnTag.setId(j + 1 + (i * 4));
        row.addView(btnTag);
    }

    layout.addView(row);
}

http://www.mysamplecode.com/2011/10/android-programmatically-generate.html

Add button to a layout programmatically

How do I programmatically add buttons into layout one by one in several lines?

So there is no way without adding each button via code? – Mighty Badaboom Dec 14 '15 at 10:27 — Mighty Badaboom, Dec 14 '15 at 10:27

Add buttons dynamically

2 Answers2