CODEWITHSUNDEEP
androidxml
Big brother
Big brother

Reputation: 17

how to Set TextSize correctly in android

I am new in android and working on an application. I have read a lot of articles, blogs about how to set Text Size correctly in android, but unfortunately they didn't tell me something useful.

I use two different AVDs to test my application. One of them is Nexus One 480 * 800 hdpi and another one is Nexus 7 800*1280 tvdpi.

I have created my UI in Nexus 7 . I have set TextSize to 72 Sp & it shows very well! But when I changed the AVD it was not OK. The text was too big. I thought if I use sp unit to define textSize, everything will go very well, but it didn't. I have tried following things:

  1. I used sp unit but it didn't work .

  2. I tried to find a relation between density and textSize in one avd , and set that so that correct textSize is shown in any in any AVD , but it didn't work too.

    (During my experiments I found 213 density for Nexus 7. It was bigger than Nexus One.) I calculated density with this code:

    int densityDpi = (int)(metrics.density*160);

  3. I read an article about this problem & it explained, you should create more than one UI for an application. According to this method, UI always shows correctly, but it didn't explain clearly how to do this.

Upvotes: 0

Views: 162

Answers (1)

Ivan
Ivan

Reputation: 978

Easy way is use res and override dimens.xml due to device used

Android gets the best resource base on the device used so you can use it do style layout, change language, theming and ofcourse, sizing.

            android:textSize="@dimen/abc_text_size_body_1_material"

You need define abc_text_size_body_1_material in 

res/values/dimens.xml
res/values-hdpi/dimens.xml
res/values-tvdpi/dimens.xml

More info http://developer.android.com/guide/practices/screens_support.html

Upvotes: 1

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