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Tried to show an alert while not attached to an Activity #13439
Description
- android 7.0
- react-native 0.43
- when i use the 'alert' in an android app which integrated the react-native
the code after:
import React, {Component} from 'react';
import {
AppRegistry,
StyleSheet,
Text,
View,
Navigator,
Button,
Alert,
} from 'react-native';
class HelloWorld extends React.Component {
show(){
Alert.alert(
'Alert Title',
'alertMessage',
)
}
render() {
return (
< View
style={styles.container
}>
<Text
style={styles.hello
}>
Hello, World </ Text >
<Button title="a"
onPress={this.show.bind(this)
}/>
</ View >
)
}
}
var styles = StyleSheet.create({
container: {
flex: 1,
justifyContent: 'center',
},
hello: {
fontSize: 20,
textAlign: 'center',
margin: 10,
},
});
AppRegistry.registerComponent('a', () => HelloWorld);
it give me the warning like this and no dialog show
Activity
vonovak commentedon Apr 11, 2017
try to show the alert after a timeout, eg 100ms
fredsun commentedon Apr 12, 2017
no.
there is nothing wrong with the timeout.
i find it that just because i integrated the react-native with my Android App,
if i run it as a independent react-native project, that's ok
but if i integrate it into my android app, there's this warning and there's no dialog come out
esilverberg commentedon Apr 15, 2017
I also experience the same behavior -- "run it as a independent react-native project, that's ok", "if i integrate it into my android app, there's this warning and there's no dialog come out"
Running RN 0.43.0
ymmn commentedon Apr 21, 2017
I also ran into this when I followed the integration with existing apps tutorial.
But it's not an issue when you make your application implement
ReactApplicationand your activity inherit fromReactActivityfredsun commentedon Apr 27, 2017
@ymmn it seems that there's no
ReactApplicationin RN 0.42.0ymmn commentedon Apr 27, 2017
@sunxlfree hmm, seems like ReactApplication hasnt been touched in a year. it should be there
saghul commentedon May 23, 2017
I had the same problem, and I solved it by hooking my custom activity's (the one which renders the ReactNativeRootView) lifecycle methods to the ReactNativeInstanceManager as the docs describe: http://facebook.github.io/react-native/releases/0.42/docs/integration-with-existing-apps.html#add-native-code
Specifically I added onPause, onResume, onDestroy and onBackPressed (though you don't need the last one). By reading the code here you'll see that the current activity is saved with those.
I hope that helps. Cheers!
pull-bot commentedon Oct 9, 2017
Hi there! This issue is being closed because it has been inactive for a while. Maybe the issue has been fixed in a recent release, or perhaps it is not affecting a lot of people. Either way, we're automatically closing issues after a period of inactivity. Please do not take it personally!
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froimsonm commentedon Oct 26, 2017
Facing same issue.
I followed the integration with existing apps tutorial.
RN version 0.48.3
MephistoDemon commentedon Mar 14, 2018
Facing same issue.
I followed the integration with existing apps tutorial.
RN version 0.48.0
marcmo commentedon Jun 11, 2018
why is this closed? it still is very much an issue!
for me I see this a lot, running with
RN version 0.55.13
MarkOSullivan94 commentedon Jun 26, 2018
For anyone who is experiencing this issue while using RN in a fragment, make sure you have defined the current activity for the ReactInstanceManager.
Example: