Questions tagged as 'ionic3'

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How to assemble a list with the data of an Observable?

How to traverse the data from an observable and insert into a list? I would like to put together a list of all the arrays it contains within the Observable that comes from the Cloud Firestore because I need a list of people to display in...
asked by 18.01.2018 / 16:36
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I have the following error in my ionic project "Error: Uncaught (in promise): TypeError: Can not read property '0' of undefined"

Hello my Ionic project has the following error (Error: Uncaught (in promise): TypeError: Can not read property '0' of undefined) Attached is an image of the problem. I would like some hint Followtheprojectlink. link login.ts...
asked by 18.01.2018 / 17:05
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Error deploying ionic 3

I'm trying to give deploying in my app more this giving the error of the image, a blank project I managed to give deploying, more when I edit the screens of the app happens this error, until now I did nothing more, just moved with the html and c...
asked by 23.01.2018 / 23:07
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How to pass values from a list in Ionic3

I have a simple json with id and name, with about 25 records, I have to pick only the records selected by the user to generate a new one screen according to the selected items, I'm doing the following: <ion-list> <ion-list-header>...
asked by 21.01.2018 / 17:14
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How to make a filter in an Observable?

How to make a filter on an Observable returned from the FireStore Cloud? export interface Pessoa { nome: string; cidade: string; telefone: string; } pessoaList: Observable<Pessoa[]>; I have the method below that is called...
asked by 16.01.2018 / 15:57
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Polygon events on google maps with javascript

I need to capture the event of DWELL , ENTER , LEAVE of the polygons, and you can add them to the map with the following code: this.map.addPolygon({ points: geofence, strokeColor: '#FF0000', strokeOpacity: 0.8,...
asked by 10.01.2018 / 16:59
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How to mount a list of data returned from firebase in Ionic 3?

I have the following code, I would like to filter all records that return through a SearchBar , I can not find a way to filter the data that is returned from the database and display on the screen for the user. ngOnInit(){ this.itemsC...
asked by 16.01.2018 / 00:14
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Build failed with an exception

When I try to run my phone, the following message appears: I was able to run via Android Studio, however the app gets very slow     
asked by 06.01.2018 / 13:45
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Validation help ionic form 3

I'd like a little help, I'm new to ionic, and I'd like some help with email validations just to see if it's valid, I do not want to search in any database, I just want to know if it has @ or .com something like image: link Code: <ion-h...
asked by 02.01.2018 / 19:25
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Ionic 3 plugin_not_installed

I have an IONIC 3 application running normally when I run: ionic cordova run android . The problem is when I run ionic cordova run android --prod of the following error:     
asked by 23.12.2017 / 22:26