i want to add picker on image when i click on it open picker with two button when i select anyone desire screen open please help me with this
here is the code i want to replace picker with touchableopacity
<TouchableOpacity
onPress={() => this.cameraUpload()}
style={styles.buttonStyle}
>
<Image
style={styles.buttonImageStyle}
source={require("../../../android/app/src/main/assets/images/uploadImage.png")}
/>
</TouchableOpacity>
You can leave the value of the picker as a status value and replace the image with a corresponding change.
<Picker
style={styles.picker} itemStyle={styles.pickerItem}
selectedValue={this.state.image}
onValueChange={(itemValue) => this.setState({image: itemValue})}
>
<Picker.Item label="image1" value="../../../android/app/src/main/assets/images/uploadImage.png" />
<Picker.Item label="image2" value="../../../android/app/src/main/assets/images/uploadImage2.png" />
<Picker.Item label="image3" value="../../../android/app/src/main/assets/images/uploadImage3.png" />
<Picker.Item label="image4" value="../../../android/app/src/main/assets/images/uploadImage4.png" />
</Picker>
...
<Image
style={styles.buttonImageStyle}
source={require(this.state.image)}
/>
Related
im using react-native-material as my ui framwork for my application, but while using the Component i added a label , it worked jst fine but when i enter the text and click out of the textinput box the label appear in front of the text that i entred, and i didnt find how to solve that.
so i need help in that please .
the image of the problem
`
<ScrollView>
<AppHeader />
<SafeAreaView style={styles.container}>
<TextInput
variant="outlined"
style={{margin: 16}}
placeholder="Enter Your Text Here"
label="Input"
onChangeText={val => {
this.setState({textvalue: val});
this.setState({isHidden: false});
}}
/>
<Picker
selectedValue={this.state.size}
onValueChange={size => this.setState({size: size})}>
<Picker.Item label="100" value={100} />
<Picker.Item label="200" value={200} />
<Picker.Item label="300" value={300} />
<Picker.Item label="400" value={400} />
<Picker.Item label="500" value={500} />
<Picker.Item label="600" value={600} />
</Picker>
<Button
title="Submmit"
style={styles.button}
onPress={() => this.setState({isHidden: true})}
/>
`
the following code doesn't give me desired result
<View style={styles.sectionContainer}>
<Text>Crash type</Text>
<Picker
selectedValue={this.state.crash_type}
style={{borderBottomWidth:1, borderBottomColor: '#cc0000'}}
onValueChange={(itemValue, itemIndex) =>
this.setState({crash_type: itemValue})
}>
<Picker.Item label="select..." value="" />
<Picker.Item label="Mogok" value="mogok" />
<Picker.Item label="Kecelakaan" value="keelakaan" />
<Picker.Item label="Lainnya" value="lainnya" />
</Picker>
</View>
basically I want to have a picker with a thin underline. the style is just works fine in another input type.
please advice, any help would be appreciated. thanks a lot.
In react native picker, state is not changing between parent and psychiatrist. Is it only going to parent button even if we select psychiatrist?
<Picker style = {styles.input1}
selectedValue={this.state.selectedValue}
onValueChange={(itemValue, itemIndex) =>
this.setState({designation: itemValue})
}>
<Picker.Item label="Parent" value="Parent" />
<Picker.Item label="Psychiatrist" value="Psychiatrist" />
<Picker.Item label="NA" value="NA" />
</Picker>
You are not setting the right state in the selected value. Set the selected value to this.state.designation:
<Picker style = {styles.input1}
selectedValue={this.state.designation}
onValueChange={(itemValue, itemIndex) =>
this.setState({designation: itemValue})
}>
<Picker.Item label="Parent" value="Parent" />
<Picker.Item label="Psychiatrist" value="Psychiatrist" />
<Picker.Item label="NA" value="NA" />
</Picker>
In your onValueChange you are settingState "designation" ,instead you should change state of the selectedValue of the picker : "selectedValue".
<Picker style = {styles.input1}
selectedValue={this.state.selectedValue}
onValueChange={(itemValue, itemIndex) =>
this.setState({selectedValue: itemValue})
}>
<Picker.Item label="Parent" value="Parent" />
<Picker.Item label="Psychiatrist" value="Psychiatrist" />
<Picker.Item label="NA" value="NA" />
</Picker>
This is my sample code, in Android I cant select first Picker Item at first time, i have created one dummy item so i need to hide first field.
<Picker
selectedValue={ this.state.selectedValue }
onValueChange={(item) => this.setState({selectedValue: item})}>
<Picker.Item label={"Slect Any"} value={null} />
<Picker.Item label={"item1"} value={'item1'} key={key} />
<Picker.Item label={"item2"} value={'item2'} key={key} />
<Picker.Item label={"item3"} value={'item3'} key={key} />
</Picker>
Any one help this.
You'll need your component to have an extra boolean field canSelectAny in the state:
<Picker
selectedValue={ this.state.selectedValue }
onValueChange={(item) => this.setState({selectedValue: item})}>
{this.state.canSelectAny && <Picker.Item label={"Select Any"} value={null} />}
<Picker.Item label={"item1"} value={'item1'} key={key} />
<Picker.Item label={"item2"} value={'item2'} key={key} />
<Picker.Item label={"item3"} value={'item3'} key={key} />
</Picker>
This should be the answer to your question
{this.state.loading = false ? (<Picker.Item label="Art" value="Art" />) :null}
I'm using Native Base picker.
I want to close it manually but can't find API for this.
Component not contain any methods or props like visible.
How I can to close/hide picker?
In my case it's enough to use renderHeader function with backAction parameter
<Picker
renderHeader={backAction => (
<Button onPress={() => {
backAction();
someFunction();
}}
)}
/>
a): you could simply render it based on this.state.isPickerVisible, or b): wrap it in a Modal which has a visible prop
for closing the Picker, if you opt to wrap it in a Modal, then make the modal take up the whole screen and use Touchable without feedback to handle taps outside of the Picker: <TouchableWithoutFeedback onPress={() => this.cancelPressed()}> where cancel pressed toggles isPickerVisible
{this.state.isPickerVisible &&
<Picker
selectedValue={this.state.tempGender}
onValueChange={tempGender => this.setState({tempGender})}
>
<Picker.Item label="Female" value="female" />
<Picker.Item label="Male" value="male" />
<Picker.Item label="Other" value="other" />
</Picker>}
if you opt to wrap it in a Modal, then you can get some animation options
import {Modal, Picker ... etc...} from 'react-native'
<Modal
animationType="slide"
transparent={true}
visible={this.state.isPickerVisible}
>
<TouchableWithoutFeedback onPress={() => this.cancelPressed()}>
<View>
<Picker
selectedValue={this.state.tempGender}
onValueChange={tempGender => this.setState({tempGender})}
>
<Picker.Item label="Female" value="female" />
<Picker.Item label="Male" value="male" />
<Picker.Item label="Other" value="other" />
</Picker>
</View>
</TouchableWithoutFeedback>
</Modal>