Android: SeekBar onProgressChanged-event doesn't get fired when setting progress programmatically

android, seekbar

Solution

+1 for Romuald Brunet's answer:

Here was my "hack" to fix it:

        <SeekBar android:id="@+id/seekbar" 
            android:layout_width="match_parent" 
            android:layout_height="wrap_content"  
            android:progress="1"
            android:max="200" />

Note the progress="1", set the default progress in the layout to 1, then in my code when I actually default it to 0, a change in the progress occurs and the onProgressChanged() event fires.

Problem

My onProgressChanged()-event doesn't get fired when I set the progress of a SeekBar programmatically, but it does get fired perfectly fine when I physically move the SeekBar slider. I'd expect the event to fire when using setProgress() - the Android Developer Reference even states that: public abstract void onProgressChanged (SeekBar seekBar, int progress, boolean fromUser) Notification that the progress level has changed. Clients can use the fromUser parameter to distinguish user-initiated changes from those that occurred programmatically. Some code snippets from my project: ``` @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.my_activity); final SeekBar mySeekBar = ((SeekBar) findViewById(R.id.mySeekBar)); mySeekBar.setOnSeekBarChangeListener(new OnSeekBarChangeListener(){ @Override public void onProgressChanged(SeekBar arg0, int arg1, boolean arg2) { // Do some stuff } } } @Override protected void onResume() { super.onResume(); final SeekBar mySeekBar = ((SeekBar) findViewById(R.id.mySeekBar)); mySeekBar.setProgress(someValue); // This SHOULD trigger onProgressChanged(), but it doesn't... } ```

Original source

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