Unable to set Button width in Android

Question

I am able to control the height but somehow it does not make any difference to the button width.

    // Table Row for Previous button
    TableRow tableRow1 = new TableRow(this);

    tableRow1.setLayoutParams(new TableRow.LayoutParams(
            TableRow.LayoutParams.WRAP_CONTENT,
            TableRow.LayoutParams.WRAP_CONTENT));
    tableRow1.setPadding(5, 5, 5, 5);

    // Button - Previous
    Button btnPrev = new Button(this);
    btnPrev.setText("< Previous");
    btnPrev.setGravity(Gravity.CENTER);
    btnPrev.setOnClickListener(prevListener);

    tableRow1.addView(btnPrev);

    android.view.ViewGroup.LayoutParams params = btnPrev.getLayoutParams();
    params.height = 20;
    params.width = 60;

    btnPrev.setLayoutParams(params);


    // TextView for Previous button
    TextView textView11 = new TextView(this);
    textView11.setTextSize(TypedValue.COMPLEX_UNIT_SP, 18);
    textView11.setGravity(Gravity.CENTER_VERTICAL);
    textView11.setGravity(Gravity.RIGHT);
    textView11.setPadding(0, 0, 20, 0);
    textView11.setText("New Entry Form");

    tableRow1.addView(textView11);

    android.view.ViewGroup.LayoutParams params1 = textView11
            .getLayoutParams();
    params1.height = (int) dipHeight;
    textView11.setLayoutParams(params1);

    tableLayout.addView(tableRow1);

I tried changing few things here and there but no look.

Can someone from you take a time and help me on this?

i changed width=300 and its working fine.whats your problem ? — kyogs, Sep 18 '13 at 12:49
@Govind: A lot of answers have been given below. Look at them and accept/upvote the answers that help you. — The Dark Knight, Sep 18 '13 at 12:50

score 1 · Answer 1 · answered Sep 18 '13 at 12:45

1

// replace this code
tableRow1.addView(btnPrev);

android.view.ViewGroup.LayoutParams params = btnPrev.getLayoutParams();
params.height = 20;
params.width = 60;
btnPrev.setLayoutParams(params);

             to
tableRow1.addView(btnPrev,new android.view.ViewGroup.LayoutParams(20,60));

answered Sep 18 '13 at 12:45

Haresh Chhelana

24,720
5
57
67

Well I did as you suggest, the button does not appear now. – Richard Paul Sep 18 '13 at 18:02

score 0 · Answer 2 · answered Sep 18 '13 at 12:42

0

to set button width & height use below code

btnPrev.setLayoutParams(new LinearLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT));
btnPrev.setwidth(60);
btnPrev.setheight(20);

answered Sep 18 '13 at 12:42

Kailash Ahirwar

771
3
14

This gives runtime error: java.lang.ClassCastException: android.widget.LinearLayout$LayoutParams cannot be cast to android.widget.TableRow$LayoutParams – Richard Paul Sep 18 '13 at 18:06

score 0 · Answer 3 · edited May 23 '17 at 10:25

0

You can set button width in two ways:

Via java :

 Button.setWidth(int width);

Via XML properties :

<Button android:layout_height="wrap_content"
 android:id="@+id/ButtonPrev" 
 android:layout_below="@id/output" 
 android:text="7" 
 android:minWidth="100dp">
</Button>

The property : android:minWidth will set the width of the button.

Reference : Set width of Button in Android

edited May 23 '17 at 10:25

Community

1
1

answered Sep 18 '13 at 12:45

The Dark Knight

5,455
11
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I am doing it programatically so cannot use XML. – Richard Paul Sep 18 '13 at 18:08

score 0 · Answer 4 · answered Sep 18 '13 at 12:46

0

View.requestLayout() maybe what you want?

answered Sep 18 '13 at 12:46

afpro

1,103
7
12

Did not get you dear, can you please elaborate. – Richard Paul Sep 18 '13 at 18:09
after setup view's layout params, call request layout to make them work. – afpro Sep 19 '13 at 04:08

Unable to set Button width in Android

4 Answers4