August 2019 - Coding with Rashid

Error: spawnSync ./gradlew EACCES React Native Error Fix

ByMohammed Rashid August 30, 2019

I was trying to run one of my react native projects on the Android emulator and faced the following error. Error: spawnSync ./gradlew EACCES at Object.spawnSync (internal/child_process.js:1041:20) at spawnSync (child_process.js:607:24) at execFileSync (child_process.js:634:15) at runOnAllDevices (/home/rashid/Desktop/React Native/Tomorrow/node_modules/@react-native-community/cli-platform-android/build/commands/runAndroid/runOnAllDevices.js:74:39) at buildAndRun (/home/rashid/Desktop/React Native/Tomorrow/node_modules/@react-native-community/cli-platform-android/build/commands/runAndroid/index.js:158:41) at /home/rashid/Desktop/React Native/Tomorrow/node_modules/@react-native-community/cli-platform-android/build/commands/runAndroid/index.js:125:12 at processTicksAndRejections (internal/process/task_queues.js:85:5) at async Command.handleAction (/home/rashid/Desktop/React Native/Tomorrow/node_modules/react-native/node_modules/@react-native-community/cli/build/cliEntry.js:160:7) My PC runs…

Errors and Fixes

Error: spawnSync ./gradlew EACCES React Native Error Fix

ByMohammed Rashid August 30, 2019

Flutter Tutorials

How to specify Height and Width in Percent with respect to the screen in Flutter

ByMohammed Rashid August 29, 2019

Mobile phone devices are of various sizes and resolutions. Developing a mobile app that looks similar to all these phones is not easy. In such cases, mentioning height and width in percent with respect to the screen can help you. In Flutter, you can’t really specify some percent of width or height directly. You can…

React Native Tutorials

How to Detect React Native App is in Background

ByMohammed Rashid August 29, 2019

Sometimes, you may want to know whether your react native app is running background or running foreground to execute your tasks. You can use the AppState API from react native for this purpose. If the AppState.currentState is active then it means your app is running in the foreground whereas if the AppState.currentState is background then…

Flutter Issues

Stuck at Installing build\app\outputs\apk\app.apk… Flutter Issue Fix

ByMohammed Rashid August 26, 2019

Sometimes, when you run your Flutter project you may come across this particular Flutter issue- you get stuck at Launching lib/main.dart on XT1635 02 in debug mode… Built build/app/outputs/apk/debug/app-debug.apk… You may even wait for many minutes and your app wouldn’t start on your Android device. So, how to fix this Flutter issue? All you need…

Flutter Issues

You need to have compileSdk set to at least 28 in your module build.gradle to migrate to AndroidX Flutter Issue Fix

ByMohammed Rashid August 26, 2019

You may face this Flutter AndroidX error when you try to migrate your Flutter project to AndroidX. In Android Studio, you would come across a dialog box saying: You need to have compileSdk set to at least 28 in your module build.gradle to migrate to AndroidX So, how to fix this Flutter issue? Open the…

React Native Tutorials

How to use BackHandler with React Navigation in React Native

ByMohammed Rashid August 22, 2019

On Android devices, users prefer the hardware back button to navigate back. Even though the actions of the back button are generally desirable, sometimes you may need to customize the action of the hardware button. In this blog post, Let’s see how to customize the back button actions using BackHandler and react-navigation library. The BackHandler…

Flutter Tutorials

How to Add Margins to a Widget in Flutter

ByMohammed Rashid August 21, 2019

Margins are required to align and place components of your user interface properly and neatly. In this blog post let’s check how to add margins to a widget in Flutter. I had already posted on how to add padding to a widget in flutter. In order to set margins to a widget, you need to…

Flutter Tutorials

How to Add Padding in Flutter

ByMohammed Rashid August 20, 2019

Proper padding is an important factor while designing a mobile user interface. Giving proper padding to each component makes the layout neat and more beautiful. In this blog post, let’s see how to add padding in Flutter. Padding can be applied using two classes – Padding and EdgeInsets. The Padding widget insets the child by…

Flutter Tutorials

How to Add a Flat Button in Flutter

ByMohammed Rashid August 19, 2019

Update: The FlatButton is deprecated. You should use the OutlinedButton instead. A Flat Button in Flutter is different from Raised Button. FlatButton widget is basically a text on the material widget which reacts to the touches. Unlike RaisedButton, Flat Button doesn’t have elevation property. Hence, if you want a button which is not much fancy…

Flutter Tutorials

How to Show SnackBar in Flutter

ByMohammed Rashid August 18, 2019

In Material Design, a SnackBar shows the user briefly some kind of useful information. Having SnackBar in your mobile application will really help users to get information about their actions inside the app. In this blog post, let’s see how to add and display SnackBar in Flutter. The SnackBar class is needed to create a…

Flutter Tutorials

How to Place a Button at the Top of the Screen in Flutter

ByMohammed Rashid August 18, 2019

Alignment is an important aspect while designing your mobile app user interface. Sometimes, you may want to align your widget at the top of the screen in Flutter. In this blog post, I am going to show you how to add a button and place it at the top of the screen in Flutter. I…