the function setLevel() does not work

[David13579246810]

   Here is my code 

   ImageView image1 = findViewById(R.id.image1);  //my battery image
    Drawable mWaveDrawable = new WaveDrawable(image1.getDrawable());
    mWaveDrawable.setLevel(35);
    image1.setImageDrawable(mWaveDrawable);
   
    The water level of my image is 0

.I can not get a fixed 35 level.

[foroughM]

I also have this problem

[Gredicer]

I figured it out: you should setImageDrawable() first For example:

  image1.setImageDrawable(mWaveDrawable);
   mWaveDrawable.setLevel(35);

[Gredicer]

And the Level Max naximum is 10000