Questions tagged as 'react-native'

Tagged questions
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How can I display information from a database in Firebase in React Native within a Text?

How to read data from a RealTimeDatabase in
asked by 13.08.2018 / 06:27
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INSTALL_FAILED_UPDATE_INCOMPATIBLE: Package signatures do not match the previously installed version; ignoring

Hello! I get this error when trying to generate a debug apk to update an application directly on the device:    Execution failed for task ': app: installDebug'.       com.android.builder.testing.api.DeviceException:   com.android.ddmlib.I...
asked by 10.04.2018 / 19:35
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React - Native does not install .apk

Good evening I have a problem, I'm doing a test application on react-native, something very basic, running it in the GENYMOTION emulator, it works perfectly. The problem arises when I generate the apk, cd android && gradlew asse...
asked by 06.04.2018 / 07:36
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Solution for when I execute reac-native command?

By placing the command "react-native run-android with the phone simulator with Genymotion it does not execute me, I have configured the environment variables of the JDK several times and I still can not move forward.     
asked by 30.01.2018 / 20:30
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How can I generate an apk to test my app in native react

I have a project done with react-native and I've been testing it with expo, but I want to generate an apk to be able to see it on a device but I do not know how to do it, the react documentation is not very clear since it only explains how gener...
asked by 05.12.2017 / 15:58
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How to remove deciales in React Native

How can I remove decimal in react native ?? this is the calculation calculateSum = () => { const { peso, altura } = this.state; this.setState({ imc: (Number(peso) / (Number(altura)*Number(altura))) * 10000 }); } shows me for example...
asked by 01.11.2017 / 22:32
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Error React native - React Navigation

I have this problem when I want to install React Navigation on Windows with npm Then when I import the component import {StackNavigator} from 'react-navigator' When emulating in android I get the following error     
asked by 30.07.2017 / 02:17
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Slow when taking pictures with Expo Camera

I have problems taking pictures with Expo Camera. In ios anda super good, Android takes a long time to take the picture. (5 seconds) Probe passing it as parameter skipProcessing : true but without result. What is the difference in p...
asked by 03.01.2019 / 16:58
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react-native-maps does not work on Android

I'm trying to use react-native-maps ( link ) on an Android device compiling the example but the application It closes when I select an example, because I guess it does not get properly access Google maps. If I try from the emulator the map is no...
asked by 22.03.2016 / 18:36
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react native android 64k method limit

When making the build to my application I get these errors: Error:The number of method references in a .dex file cannot exceed 64K. Learn how to resolve this issue at https://developer.android.com/tools/building/multidex.html Error:com.androi...
asked by 21.11.2018 / 06:21