[BUG] Not able to see the activity indicator

To Do First

• Did you try latest release? yes
• Did you look for existing matching issues? yesy

Software Package Version:
1.2.1

Describe the bug
I am not able to see the activity indicator while image is being loaded. Shows black blank screen while image is loading. Provided activity indicator seperately but no luck.

Expected behavior
Activity indicator is important for feedback and should be visible while image is loading.

Version (please complete the following information):

• Device: Oneplus3
• Android: 9
• react-native: 0.59.10
• react: 16.8.3

Additional context
Here is the code snippet

<SmartGallery
	images={images}
	onPageSelected={index => this.setState({ index })}
	index={index}
	loadMinimalLoader={<ActivityIndicator color="#fff" />}
/>

@Luehang please check