CODEWITHSUNDEEP
androidandroid-layout
LcSalazar
LcSalazar

Reputation: 16821

Create buttons side by side dynamically

I have the following method which I call a few times to create a list of buttons. It works well and creates the buttons.

public void CreateButton(int i) {
    LinearLayout btnLayout = (LinearLayout)findViewById(R.id.btnLayout);
    Button btn = new Button(this);

    btn.setId(i);
    btn.setText(String.valueOf(i+1));
    btnLayout.addView(btn);
}

But each created button is fitting the screen in width, and I would want it to stay side by side, two buttons per row. I managed to set the button to half the screen size using this:

int displaywidth= getResources().getDisplayMetrics().widthPixels; 
btn.setLayoutParams(new LayoutParams((int)(displaywidth/2), LayoutParams.WRAP_CONTENT));

It makes the button's width to be half the screen's size, but I can't figure out how to place them side by side. Any help is appreciated.

Upvotes: 0

Views: 956

Answers (3)

ChiefTwoPencils
ChiefTwoPencils

Reputation: 13930

Change your orientation in your LinearLayout to horizontal.

<LinearLayout
...
   android:orientation="horizontal"
... >
   ...
</LinearLayout>

If you only have a single LinearLayout that is to hold multiple side-by-side buttons you can make horizontal LinearLayouts to hold your button pairs and either nest them in the main veritical layout or utilize another layout, for example RelativeLayout, to get the desired results.

Upvotes: 1

TheBrownCoder
TheBrownCoder

Reputation: 1226

One way to solve the problem is by using their weight and width. Make sure the Linear Layout has a horizontal orientation. Then, use Layout_params to set their width to "Wrap_Content" and their weight to "1". Then both will automatically take up the same amount of space.

Upvotes: 0

Rujul1993
Rujul1993

Reputation: 1661

Try using weight property of LinearLayout. If in each row you want only two buttons then give 

android:weightSum="1"

to LinearLayout and 

android:layout_weight="0.5"

to each button or you can set weight dynamically in your code by 

LinearLayout.LayoutParams param = new LinearLayout.LayoutParams(
                         LayoutParams.MATCH_PARENT,
                         LayoutParams.MATCH_PARENT, xf);

where x represents the float value of layout weight of your button. for more details about layout weight http://developer.android.com/guide/topics/ui/layout/linear.html

Upvotes: 0

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