Method onUserActivity

android/src/org/coolreader/CoolReader.java:834–875

()

    private final static int MIN_BACKLIGHT_LEVEL_PERCENT = DeviceInfo.AMOLED_SCREEN ? 2 : 16;
    
    public void onUserActivity()
    {
    	if (backlightControl != null)
      	    backlightControl.onUserActivity();
    	// Hack
    	//if ( backlightControl.isHeld() )
    	BackgroundThread.guiExecutor.execute(new Runnable() {
			@Override
			public void run() {
				try {
		        	float b;
		        	int dimmingAlpha = 255;
		        	// screenBacklightBrightness is 0..100
		        	if (screenBacklightBrightness >= 0) {
	        			float minb = MIN_BACKLIGHT_LEVEL_PERCENT / 100.0f; 
		        		if ( screenBacklightBrightness >= 10 ) {
		        			// real brightness control, no colors dimming
		        			b = (screenBacklightBrightness - 10) / (100.0f - 10.0f); // 0..1
		        			b = minb + b * (1-minb); // minb..1
				        	if (b < minb) // BRIGHTNESS_OVERRIDE_OFF
				        		b = minb;
				        	else if (b > 1.0f)
				        		b = 1.0f; //BRIGHTNESS_OVERRIDE_FULL
		        		} else {
			        		// minimal brightness with colors dimming
			        		b = minb;
			        		dimmingAlpha = 255 - (11-screenBacklightBrightness) * 180 / 10; 
		        		}
		        	} else {
		        		// system
		        		b = -1.0f; //BRIGHTNESS_OVERRIDE_NONE
		        	}
		        	mReaderView.setDimmingAlpha(dimmingAlpha);
			    	log.d("Brightness: " + b + ", dim: " + dimmingAlpha);
			    	updateBacklightBrightness(b);
			    	updateButtonsBrightness(keyBacklightOff ? 0.0f : -1.0f);
				} catch ( Exception e ) {
					// ignore
				}
			}
    	});
    }
    
    boolean mDestroyed = false;
	@Override