让箭头出现比我想象的要困难,特别是当你考虑不同的屏幕尺寸、不同的平台(iOS和Android)时。是的,@panagiotis vrs提到在两个平台上看起来不会100%相同时是正确的。尽管如此,我还是试图达到同样的目的
react-native-svg
和
react-native-size-matters
.
我正在分享我的代码,也许有人可以即兴发挥,让它变得更好。
HTML部分
<View style={[styles.item, styles.itemIn]}>
<View style={[styles.balloon, {backgroundColor: 'grey'}]}>
<Text style={{paddingTop: 5, color: 'white'}}>Hey! How are you?</Text>
<View
style={[
styles.arrowContainer,
styles.arrowLeftContainer,
]}
>
<Svg style={styles.arrowLeft} width={moderateScale(15.5, 0.6)} height={moderateScale(17.5, 0.6)} viewBox="32.484 17.5 15.515 17.5" enable-background="new 32.485 17.5 15.515 17.5">
<Path
d="M38.484,17.5c0,8.75,1,13.5-6,17.5C51.484,35,52.484,17.5,38.484,17.5z"
fill="grey"
x="0"
y="0"
/>
</Svg>
</View>
</View>
</View>
<View style={[styles.item, styles.itemOut]}>
<View style={[styles.balloon, {backgroundColor: '#1084ff'}]}>
<Text style={{paddingTop: 5, color: 'white'}}>Hey! I am good. How are you?</Text>
<View
style={[
styles.arrowContainer,
styles.arrowRightContainer,
]}
>
<Svg style={styles.arrowRight} width={moderateScale(15.5, 0.6)} height={moderateScale(17.5, 0.6)} viewBox="32.485 17.5 15.515 17.5" enable-background="new 32.485 17.5 15.515 17.5">
<Path
d="M48,35c-7-4-6-8.75-6-17.5C28,17.5,29,35,48,35z"
fill="#1084ff"
x="0"
y="0"
/>
</Svg>
</View>
</View>
</View>
<View style={[styles.item, styles.itemOut]}>
<View style={[styles.balloon, {backgroundColor: '#1084ff'}]}>
<Text style={{paddingTop: 5, color: 'white'}}>Check this Image out !!!</Text>
<View
style={[
styles.arrowContainer,
styles.arrowRightContainer,
]}
>
<Svg style={styles.arrowRight} width={moderateScale(15.5, 0.6)} height={moderateScale(17.5, 0.6)} viewBox="32.485 17.5 15.515 17.5" enable-background="new 32.485 17.5 15.515 17.5">
<Path
d="M48,35c-7-4-6-8.75-6-17.5C28,17.5,29,35,48,35z"
fill="#1084ff"
x="0"
y="0"
/>
</Svg>
</View>
</View>
</View>
<View style={[styles.item, styles.itemOut]}>
<View style={[styles.balloon, {backgroundColor: '#1084ff'}]}>
<Image
styleName="small"
borderRadius={5}
source={{ uri: 'https://shoutem.github.io/img/ui-toolkit/examples/image-3.png'}}
/>
<View
style={[
styles.arrowContainer,
styles.arrowRightContainer,
]}
>
<Svg style={styles.arrowRight} width={moderateScale(15.5, 0.6)} height={moderateScale(17.5, 0.6)} viewBox="32.485 17.5 15.515 17.5" enable-background="new 32.485 17.5 15.515 17.5">
<Path
d="M48,35c-7-4-6-8.75-6-17.5C28,17.5,29,35,48,35z"
fill="#1084ff"
x="0"
y="0"
/>
</Svg>
</View>
</View>
</View>
<View style={[styles.item, styles.itemIn]}>
<View style={[styles.balloon, {backgroundColor: 'grey'}]}>
<Text style={{paddingTop: 5, color: 'white'}}>Nice Picture</Text>
<View
style={[
styles.arrowContainer,
styles.arrowLeftContainer,
]}
>
<Svg style={styles.arrowLeft} width={moderateScale(15.5, 0.6)} height={moderateScale(17.5, 0.6)} viewBox="32.484 17.5 15.515 17.5" enable-background="new 32.485 17.5 15.515 17.5">
<Path
d="M38.484,17.5c0,8.75,1,13.5-6,17.5C51.484,35,52.484,17.5,38.484,17.5z"
fill="grey"
x="0"
y="0"
/>
</Svg>
</View>
</View>
</View>
CSS部分
item: {
marginVertical: moderateScale(7, 2),
flexDirection: 'row'
},
itemIn: {
marginLeft: 20
},
itemOut: {
alignSelf: 'flex-end',
marginRight: 20
},
balloon: {
maxWidth: moderateScale(250, 2),
paddingHorizontal: moderateScale(10, 2),
paddingTop: moderateScale(5, 2),
paddingBottom: moderateScale(7, 2),
borderRadius: 20,
},
arrowContainer: {
position: 'absolute',
top: 0,
left: 0,
right: 0,
bottom: 0,
zIndex: -1,
flex: 1
},
arrowLeftContainer: {
justifyContent: 'flex-end',
alignItems: 'flex-start'
},
arrowRightContainer: {
justifyContent: 'flex-end',
alignItems: 'flex-end',
},
arrowLeft: {
left: moderateScale(-6, 0.5),
},
arrowRight: {
right:moderateScale(-6, 0.5),
}
现在在不同的设备屏幕上缩放它对我来说只是一个尝试和错误。现在的产量对我来说已经足够了。也许当我有时间的时候,我会努力改进目前的设计。
这就是它在iOS上的外观:
iPhone 7:
iPhone X:
现在在Android上,不幸的是我没能让箭头的曲线出现。也许我做错了什么。这就是它最终的样子。
像素2:
连接6:
也许我们可以用
flex
使箭头曲线在Android上看起来很好。
以防有人做了更好的版本。分享吧。:)
