const pickImage = async () => {
     let result = await ImagePicker.launchImageLibraryAsync({
     mediaTypes: ImagePicker.MediaTypeOptions.Images,
     allowsEditing: true,
     aspect: [1, 1],
     quality: 1,
        });
    
     if (!result.cancelled) {
     setImages([...images,result.uri]);
       }
      };
    
         <FlatList
         style={{flex:1}}
         data={images}
         renderItem={({item})=>(
         <Image source={{uri:item}} style={{height:'50%',width:'50%'}}/>
)}
    
         />