我为地图中的每个项目创建了touchableopacity。它工作正常,但是当我将功能赋予如下所示的TouchableOpacity时,出现标题上的错误。我该如何解决?
在编写此代码时出现错误。AlertButton()
{section.subcategory.map((item, key) => (
<View key={key} style={styles.item}>
<TouchableOpacity
onPress={() =>this.AlertButton()}>
</TouchableOpacity>
<View style={styles.separator} />
</View>
))}
这是我的提醒功能:
AlertButton() {
const number = 'TelNo';
Alert.alert(
'',
'Test',
[
{text: 'NO'},
{text: 'Yes', onPress: () => Linking.openURL(`tel:${number}`)},
],
);
}
此处呈现。我上面的地图函数在renderContent
render() {
CONTENT2 =[];
CONTENT2 = this.state.fromPage1;
return (
<View style={styles.container}>
<View style={{height: this.state.yuksek, width: this.state.genis, justifyContent: 'center', alignItems: 'center',position:'absolute'}}>
<Text style={{fontWeight: 'bold', color:'#856F6F'}}>Yukarıdaki menü butonlarına tıklayınız.</Text>
</View>
<View style={{height: this.state.yuksek2, width: this.state.genis2, justifyContent: 'center', alignItems: 'center'}}>
<Text style={{fontWeight: 'bold', color:'#856F6F'}}>String</Text>
</View>
<ScrollView contentContainerStyle={{}}>
<Accordion
activeSections={this.state.activeSections}
sections={CONTENT2}
touchableComponent={TouchableOpacity}
expandMultiple={false}
renderHeader={this.renderHeader}
renderContent={this.renderContent}
duration={400}
onChange={this.setSections}
/>
</ScrollView>
<View style={{height:85, width:85,position:'absolute',bottom:5,right:5}}>
<TouchableOpacity style={{flex:1}} onPress={() => this.AlertButton()}>
<ImageBackground source={require('../../image/phoneCall.png')} style={{flex:1}}>
</ImageBackground>
</TouchableOpacity>
</View>
</View>
);
}
}
答案 0 :(得分:1)
只需更改以下行
renderContent={this.renderContent}
到
renderContent={this.renderContent.bind(this)}
因为当您直接使用class方法作为回调时,从组件内部调用
时,它不一定绑定到其类