How to generate id in android randomly and programmatically?

android android-view android-identifiers
Zin Win Htet picture Zin Win Htet · Aug 5, 2014 · Viewed 15.5k times · Source

I'm trying to generate random ids for views as shown in following screenshot. But it didn't work. It got null. How should I findViewById ?

enter image description here

Answer

Montassir Ld picture Montassir Ld · Jan 4, 2017

use textView.setId(View.generateViewId()) introduced in API 17.

Related questions

How can I assign an ID to a view programmatically?

In an XML file, we can assign an ID to a view like android:id="@+id/something" and then call findViewById(), but when creating a view programmatically, how do I assign an ID? I think setId() is not the same …

Read More
Is there an easy way to add a border to the top and bottom of an Android View?

I have a TextView and I'd like to add a black border along its top and bottom borders. I tried adding android:drawableTop and android:drawableBottom to the TextView, but that only caused the entire view to become black. <…

Read More
Android basics: running code in the UI thread

In the viewpoint of running code in the UI thread, is there any difference between: MainActivity.this.runOnUiThread(new Runnable() { public void run() { Log.d("UI thread", "I am the UI thread"); } }); or MainActivity.this.myView.post(new Runnable() { public …

Read More