Simple TextView.setText causes 40% CPU Usage

by

I noticed this myself a while ago, I think the problem is that every time you call setText, the size of the textbox can change, thus requiring the entire screen to go through relayout (expensive).

I haven’t tried this myself yet, but if your textbox is simple and can be made to be a relatively fixed size, maybe try to subclass TextView and create a view that does not resize itself on setText, but rather just draws whatever it can into the existing area? That would save a lot of time.

Perhaps theres already a flag to setText that can make it do this, but I’m not aware of it, though I haven’t searched closely.

More Related Contents:

  1. Get Memory Usage in Android
  2. Ionic not refreshing webpage on revisiting page again on android
  3. Disable only one from the list Recyclerview in android [closed]
  4. Android 5.1.1 and above – getRunningAppProcesses() returns my application package only
  5. Android Material Design Button Styles
  6. How to implement Android Pull-to-Refresh
  7. Android TextWatcher.afterTextChanged vs TextWatcher.onTextChanged
  8. match_parent width does not work in RecyclerView
  9. Google sign in failed com.google.android.gms.common.api.ApiException: 10:
  10. How can I get a working vertical SeekBar in Android?
  11. How to style the standard react-native android picker?
  12. Can’t create AVD or test any application with AVD after update build tools to 22.6
  13. What does the filter parameter to createScaledBitmap do?
  14. Trying to draw a button: how to set a stroke color and how to “align” a gradient to the bottom without knowing the height?
  15. build.gradle and project libs
  16. Android: why is there no maxHeight for a View?
  17. Best way to manage the ProgressDialog from AsyncTask
  18. Get Selected Text from TextView
  19. How to delete internal storage file in android?
  20. Tapping form field in WebView does not show soft keyboard
  21. setShadowLayer Android API differences
  22. Release APK Not Updating With JavaScript Code
  23. Button states with Background as AnimationDrawable in Android
  24. Disabling “Force Stop” Button in Android
  25. How to display Text in Android Canvas ShapeDrawable with in the RectShape or OvalShape?
  26. What difference between static and non static viewholder in RecyclerView Adapter?
  27. Getting “error: closed” twice on “adb reverse”
  28. NameNotFoundException when calling getPackageInfo on Android 11
  29. Android: Checking if headphones are plugged in
  30. Android application as a service without activity

Leave a Comment