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App.js
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App.js
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import React, { Component } from 'react';
import { Alert, AppRegistry, Platform, StyleSheet, Text, TouchableHighlight, TouchableOpacity,
TouchableNativeFeedback, TouchableWithoutFeedback, View,TextInput } from 'react-native';
export default class Calc extends Component{
constructor(props)
{
super(props)
this.state={
angka:"0",
hasil:0,
}
}
_angka(val)
{
// Alert.alert(this.state.angka)
if(this.state.angka=="0")
{
if(val=="*" || val=="/" || val=="=" || val=="+" || val=="-")
{
this.setState({
angka:"0"
})
}
else
{
this.setState({
angka:val
})
}
}
else
{
this.setState({
angka:this.state.angka+""+val
})
}
}
_hasil()
{
this.setState({
angka:eval(this.state.angka)
})
}
_clear()
{
this.setState({
angka:'0'
})
}
render()
{
return(
<View style={{flex:1}}>
<Text
style={{fontSize:50,color:'#fff',backgroundColor:'#000',textAlign:'right'}}
>
{this.state.angka}
</Text>
<View style={{flexDirection:'row'}}>
<TouchableNativeFeedback
onPress={this._clear.bind(this)}
>
<View style={{flex:3,backgroundColor:'#01579b'}}>
<Text style={{textAlign:'center',color:'#fff',padding:10,fontSize:30}}> C </Text>
</View>
</TouchableNativeFeedback>
<TouchableNativeFeedback
onPress={()=>this._angka('/')}
>
<View style={{flex:1,backgroundColor:'#002f6c'}}>
<Text style={{textAlign:'center',color:'#fff',padding:10,fontSize:30}}> / </Text>
</View>
</TouchableNativeFeedback>
</View>
<View style={{flexDirection:'row'}}>
<TouchableNativeFeedback
onPress={()=>this._angka(1)}
>
<View style={styles.button}>
<Text style={{textAlign:'center',color:'#000',padding:10,fontSize:30}}> 1</Text>
</View>
</TouchableNativeFeedback>
<TouchableNativeFeedback
onPress={()=>this._angka(2)}
>
<View style={styles.button}>
<Text style={{textAlign:'center',color:'#000',padding:10,fontSize:30}}> 2</Text>
</View>
</TouchableNativeFeedback>
<TouchableNativeFeedback
onPress={()=>this._angka(3)}
>
<View style={styles.button}>
<Text style={{textAlign:'center',color:'#000',padding:10,fontSize:30}}> 3</Text>
</View>
</TouchableNativeFeedback>
<TouchableNativeFeedback
onPress={()=>this._angka('*')}
>
<View style={{flex:1,backgroundColor:'#002f6c'}}>
<Text style={{textAlign:'center',color:'#fff',padding:10,fontSize:30}}> X</Text>
</View>
</TouchableNativeFeedback>
</View>
<View style={{flexDirection:'row'}}>
<TouchableNativeFeedback
onPress={()=>this._angka(4)}
>
<View style={styles.button}>
<Text style={{textAlign:'center',color:'#000',padding:10,fontSize:30}}> 4</Text>
</View>
</TouchableNativeFeedback>
<TouchableNativeFeedback
onPress={()=>this._angka(5)}
>
<View style={styles.button}>
<Text style={{textAlign:'center',color:'#000',padding:10,fontSize:30}}> 5</Text>
</View>
</TouchableNativeFeedback>
<TouchableNativeFeedback
onPress={()=>this._angka(6)}
>
<View style={styles.button}>
<Text style={{textAlign:'center',color:'#000',padding:10,fontSize:30}}> 6</Text>
</View>
</TouchableNativeFeedback>
<TouchableNativeFeedback
onPress={()=>this._angka('-')}
>
<View style={{flex:1,backgroundColor:'#002f6c'}}>
<Text style={{textAlign:'center',color:'#fff',padding:10,fontSize:30}}> -</Text>
</View>
</TouchableNativeFeedback>
</View>
<View style={{flexDirection:'row'}}>
<TouchableNativeFeedback
onPress={()=>this._angka(7)}
>
<View style={styles.button}>
<Text style={{textAlign:'center',color:'#000',padding:10,fontSize:30}}> 7</Text>
</View>
</TouchableNativeFeedback>
<TouchableNativeFeedback
onPress={()=>this._angka(8)}
>
<View style={styles.button}>
<Text style={{textAlign:'center',color:'#000',padding:10,fontSize:30}}> 8</Text>
</View>
</TouchableNativeFeedback>
<TouchableNativeFeedback
onPress={()=>this._angka(9)}
>
<View style={styles.button}>
<Text style={{textAlign:'center',color:'#000',padding:10,fontSize:30}}> 9</Text>
</View>
</TouchableNativeFeedback>
<TouchableNativeFeedback
onPress={()=>this._angka('+')}
>
<View style={{flex:1,backgroundColor:'#002f6c'}}>
<Text style={{textAlign:'center',color:'#fff',padding:10,fontSize:30}}> +</Text>
</View>
</TouchableNativeFeedback>
</View>
<View style={{flexDirection:'row'}}>
<TouchableNativeFeedback
onPress={()=>this._angka('00')}
>
<View style={styles.button}>
<Text style={{textAlign:'center',color:'#000',padding:10,fontSize:30}}> 00</Text>
</View>
</TouchableNativeFeedback>
<TouchableNativeFeedback
onPress={()=>this._angka(0)}
>
<View style={styles.button}>
<Text style={{textAlign:'center',color:'#000',padding:10,fontSize:30}}> 0</Text>
</View>
</TouchableNativeFeedback>
<TouchableNativeFeedback
onPress={()=>this._angka('.')}
>
<View style={styles.button}>
<Text style={{textAlign:'center',color:'#000',padding:10,fontSize:30}}> .</Text>
</View>
</TouchableNativeFeedback>
<TouchableNativeFeedback
onPress={()=>this._hasil()}
>
<View style={{flex:1,backgroundColor:'#d50000'}}>
<Text style={{textAlign:'center',color:'#fff',padding:10,fontSize:30}}> = </Text>
</View>
</TouchableNativeFeedback>
</View>
</View>//View AWal
)
}
}
const styles = StyleSheet.create({
container: {
alignItems: 'center',
flexDirection:'row'
},
button: {
flex:1,
alignSelf: "stretch",
alignItems: 'center',
backgroundColor: '#ededed'
},
button2: {
marginBottom: 1,
alignSelf: "stretch",
alignItems: 'center',
backgroundColor: '#01579b'
}
})
// skip this line if using Create React Native App
AppRegistry.registerComponent('AwesomeReact', () => Calc);