when i'm creating a button it become different size in different mobiles why...?

Question

i'm new to the android when i'm creating the button it's become variation in different mobiles please help me.

<LinearLayout android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:orientation="vertical">
    <RelativeLayout
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        android:layout_gravity="center_horizontal">
        <Button
            android:layout_width="wrap_content"
            android:gravity="center"
            android:width="300sp"
            android:layout_height="wrap_content"
            android:text="chennai to coimbatore"/>
    </RelativeLayout>
</LinearLayout>

Why do you define the button width twice? The second time with an exact width? http://stackoverflow.com/questions/11181971/difference-between-androidwidth-and-androidlayout-width — OneCricketeer, Jun 16 '16 at 11:25

score 0 · Answer 1 · answered Jun 16 '16 at 11:20

0

You are using the sp unit which is device independent BUT is scaled with the user's font size preference

Just use dp instead

answered Jun 16 '16 at 11:20

devnull69

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score 0 · Answer 2 · answered Jun 16 '16 at 11:21

0

different mobile have a different density so that you button like small medium as per density

answered Jun 16 '16 at 11:21

Divyesh Boda

258
2
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Janki Gadhiya · Accepted Answer · 2016-06-16T11:54:14.187

0

construct your button like below. Remove android:width="300sp", It is not needed:

<LinearLayout android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:orientation="vertical">
    <RelativeLayout
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        android:layout_gravity="center_horizontal">
        <Button         
          android:layout_width="300dp"
          android:gravity="center"
          android:layout_height="wrap_content"
          android:text="chennai to coimbatore"/>
    </RelativeLayout>
</LinearLayout>

edited Jun 16 '16 at 11:54

answered Jun 16 '16 at 11:23

Janki Gadhiya

4,492
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then also i'm getting that Problem only i used DP instated of SP then also it is variations haveing – chandra Jun 16 '16 at 11:41
If you implemented the same as i have done above you will not have that problem..!! check it once i have updated with full code.. Just copy-paste it and see what happens..!! – Janki Gadhiya Jun 16 '16 at 11:55

score 0 · Answer 4 · answered Jun 16 '16 at 11:31

Use dp instead of sp. As per documentation (https://developer.android.com/guide/practices/screens_support.html) "you should prefer the sp (scale-independent pixel) to define text sizes. The sp scale factor depends on a user setting and the system scales "

when i'm creating a button it become different size in different mobiles why...?

4 Answers4