Flutter Properties 'M'

1. margin:
To define empty space to surround the decoration and child.
Type: EdgeInsetsGeometry
Example:
margin: EdgeInsets.fromLTRB(10,5,6,10)
margin: EdgeInsets.all(20.0)

Comments

Adding Audio/sound in Flutter

Adding Audio/Sound in Flutter First, Add dependencies: dependencies: audioplayers: ^0.18.3 Now, run an implicit dart pub get . Note: Install the latest version. Import it Now in your Dart code, you can use: import 'package:audioplayers/audioplayers.dart ' ; import 'package:audioplayers/audio_cache .dart ' ; Play Sound/Audio after you open the app : AudioPlayer advancedPlayer ; Future loadMusic() async { advancedPlayer = await AudioCache ().loop( "filename.mp3" ); //to play audio in a loop // OR advancedPlayer = await AudioCache ().play( "filename.mp3" ); //to play audio once } @override void initState() { loadMusic(); super .initState(); } To Stop Sound/Audio : Future stopp(){ //created stopp() function to stop playing audio a...

TabBarView & TabBar in Flutter using DefaultTabController()

Adding TabBarView & TabBar in Flutter using DefaultTabController Import it Now in your Dart code, you can use: import 'package:flutter/gestures .dart ' ; //for drag gesture Three Simple Steps: 1. Remember to add DefaultTabController before Scaffold: class Timeline_PageState extends State<Timeline_Page>{ @override Widget build(BuildContext context) { return DefaultTabController ( initialIndex: 0 , // default is 0 length: 4 , // Number of Tabs ); } } 2. TabBar Code: Container (color:Colors. grey . shade100 , //TAB_BAR Inside a Container height: 50 , child: TabBar (labelColor: Colors. black , tabs: [ Tab (text: 'About' , icon: Icon (Icons. account_box_outlined , color: Colors. indigo ,), iconMargin: EdgeInsets . only (bottom: 0.0 ),...

Retrieve Data from Firebase in Flutter

Retrieving Data Using DocumentSnapshot Retrieve Data Stored in a map in firebase First, Add dependencies: dependencies: cloud_firestore: ^1.0.7 Now, run an implicit dart pub get . Note: Install the latest version. Import it Now in your Dart code, you can use: import 'package:cloud_firestore/cloud_firestore.dart' ; Now in your Dart code: DocumentSnapshot documentSnapshot = await FirebaseFirestore. instance .collection( 'Collection_Name' ).doc( 'Document_Id' ).get(); Also, to get data length use: int dataLength = documentSnapshot.data(). length ; To get data of a single map: List<String> dataList = documentSnapshot['key'].toString(); For queries or any other help related to flutter or dart feel free to ask in the comments😊

Flutter

Search This Blog