Setting text size to dynamically created EditText widgets produces different size for different android screens

Question

I am adding EditText dynamically on press of Add button. I have handled dynamic creation of widgets and adding them to existing xml layout. But the problem is in the text size. I am using 15 SP in xml layout and want to keep the same size for dynamically created ones also.

I have applied the following code to calculate the text size dynamically:

int txtSize = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_SP, 15, getResources().getDisplayMetrics());
EditText child = new EditText(MyActivity.this); 
child.setTextSize(txtSize);

Its not producing the desired results and text size varies according to different screen sizes in spite of the fact that I am using Scaled Pixels.

Please help...

Answer 1

Here is one way to do it:

1. Define alternative "style" resource for devices with different screen size.

   • Create res/values-sw480dp and res/values-sw720dp folder (assuming you need to handle screen width 480 and 720 pixels)
   • Add a styles.xml in the each resource folder with different screen size
   • styles.xml contains a style like the following:

   <style name="DetailText"> <item name="android:textColor">@color/detail_text_color</item> <item name="android:textStyle">bold</item> <item name="android:textSize">22sp</item> </style>

   • Use different textSize in the style file for screen with different size
   • For detail of how to create alternative resource for screen with different sizes, use this link http://developer.android.com/guide/practices/screens_support.html

2. Add logic in your code to retrieve the text size from the style file. This link shows you how to retrieve valute of attribute in style file: How to retrieve style attributes programmatically from styles.xml

Answer 2

Try:

int textSize = 15;
EditText child = new EditText(MyActivity.this); 
child.setTextSize(Android.Util.ComplexUnitType.Sp, textSize);

Answer 3

just write this code

EditText child = new EditText(MyActivity.this); 
child.setTextSize(TypedValue.COMPLEX_UNIT_SP, 16);

reference

http://developer.android.com/reference/android/util/TypedValue.html#COMPLEX_UNIT_SP