I am developing an Ionic2 app. I am using Ionic STORAGE, which uses SQLITE in android. I want to preview that db for debugging. How can I do that. DDMS in android studio shows nothing.
I heard that Stetho is good for android app debugging. But couldn't found any tutorial how to integrate it with Ionic2.
Any help would be appreciated.
Rgds
You can :
console.log() database values and can see then in android studio debugger
Use a browser such as chrome in desktop and see database values(may not use sqllite)
more info
https://developers.google.com/web/tools/chrome-devtools/manage-data/local-storage
Use WebSQL for debugging:
import { Injectable } from '';
import { SQLite } from 'ionic-native';
import { Platform } from 'ionic-angular';
const DB_NAME: string = 'particulars.db';
const win: any = window;
#Injectable()
export class StorageService {
private _db: any;
constructor(private platform: Platform) {
if (this.platform.is('cordova')) {
this._db = new SQLite();
this._db.openDatabase({
name: DB_NAME,
location: 'default' // the location field is required
}).then(() => {
this._tryInit();
});
} else {
console.warn('Storage: SQLite plugin not installed, falling back to WebSQL. Make sure to install cordova-sqlite-storage in production!');
this._db = win.openDatabase(DB_NAME, '1.0', 'database', 5 * 1024 * 1024);
this._tryInit();
}
_tryInit() {
//do query here
}
}
See https://gist.github.com/NickStemerdink/64c782807fc31b7bc9b529ad4b1d56d5.
Related
I am getting this error
"__zone_symbol_currentTask":{"type":"microTask","state":"notScheduled","source":"Promise.then","zone":"angular","cancelFn":null,"runCount":0}}
while login facebook from my hybrid application. I have used
ng2-cordova-oauth
plugin to achieve facebook login. My code look like.
import { Component } from '#angular/core';
import {IonicPage, NavController, Platform} from 'ionic-angular';
import {OauthCordova} from '../../../node_modules/ng2-cordova-oauth/platform/cordova';
import {Facebook} from '../../../node_modules/ng2-cordova-oauth/core';
#IonicPage()
#Component({
selector: 'page-facebook',
templateUrl: 'facebook.html',
})
export class FacebookPage {
public oauth: OauthCordova;
private provider: Facebook;
public constructor(public navCtrl: NavController, private platform: Platform) {
this.oauth = new OauthCordova();
this.provider = new Facebook({
clientId: "1807864452579635",
appScope: ['id','story','picture','link','type','full_picture','message']
});
}
public login() {
this.platform.ready().then(() => {
this.oauth.logInVia(this.provider).then((success) => {
alert(JSON.stringify(success));
}, (error) => {
console.log(JSON.stringify(error));
});
});
}
}
I ran into this on a project I was working on too. The problem turned out to be that the ng2-cordova-oauth dependencies weren't installed. Specifically we had to run:
cordova plugin add cordova-plugin-inappbrowser
cordova plugin add cordova-plugin-whitelist
cordova prepare
You may also have to whitelist your site using the information found at https://github.com/apache/cordova-plugin-whitelist
Edit: You can't use ng2-cordova-oauth from the browser. You have to use a device or a simulator.
note that it is unlikely for anyone to see the original error in this code since it in part depends on external dependencies
You can use
JSON.stringify(error,Object.getOwnPropertyNames(e));
to get a clear description of the error you getting, because The __zone_symbol_currentTask is a property inserted into the Error object by Angular and JSON.stringify does not output the Error object's own properties (by default)
see also: Is it not possible to stringify an Error using JSON.stringify?
I've been trying hard to figure out how to check for network connectivity while the splashscreen is being displayed.I've searched for the code in many places but most of those articles are outdated.
I followed the tutorial that's mentioned here:https://www.thepolyglotdeveloper.com/2016/01/determine-network-availability-in-an-ionic-2-mobile-app/
But then I found out that Network.connection is deprecated and has been replaced by Network.type on the ionic2 website.
So I've replaced the word connection with Network.type everywhere.
So I checked out the ionic2 website and found this code which I included in the home.ts file.
import {Network} from 'ionic-native';
checkConnection() {
//console.log("entrou");
//console.log(Network);
let disconnectSubscription = Network.onDisconnect().subscribe(() => {
console.log('network was disconnected :-( ')
});
disconnectSubscription.unsubscribe();
console.log("watch network");
console.log("Conexao" + Network.type);
let connectSubscription = Network.onConnect().subscribe(() => {
console.log('network connected!');
setTimeout(() => {
console.log('network status');
console.log(Network.type);
if (Network.type === 'WIFI') {
console.log('we got a wifi connection, woohoo!');
}
}, 3000);
});
console.log("Sub" + connectSubscription);
connectSubscription.unsubscribe();
}
here is my home.html file
`<ion-header>
<ion-navbar>
<ion-title>Home</ion-title>
</ion-navbar>
</ion-header>
<ion-content padding>
<button ion-buttton (click)="checkConnection()">Check Network</button>
</ion-content>`
I tried implementing the same code but doesn't work.
I want to know what is the exact code that I can use ?
What is that I need to import to use this code if it is the right one?
Also I want to know how to run it during the splashscreen ?
On the console I found these errors
"Native: tried calling Network.type, but the Network plugin is not installed.
Network plugin: 'ionic plugin add cordova-plugin-network-information'
But i've already installed the required plugin following that above command.I also installed "npm install ionic-native".
I reinstalled them on seeing this error but this still persists.
In your config.xml add the following:
<preference name="AutoHideSplashScreen" value="false" />
This will make the SplashScreen stay visible until you manually hide it.
Then in your app.component.ts do the following:
constructor(private platform: Platform) {
platform.ready().then(() => {
// Check the network stuff here and do what you need to do
if (Network.type == 'WIFI') console.log('We are on WIFI!');
else console.log('We aren't on WIFI');
// then hide the splash screen manually
SplashScreen.hide();
});
}
hi, make sure you have ionic-native to the latest version:
https://github.com/driftyco/ionic-native/blob/master/CHANGELOG.md
please see this for implementation:
https://forum.ionicframework.com/t/using-ionic-2-rc-4-native-network/75715/4
there is another problem associated with this , where on disconnect fires twice rather than only once:
IONIC 2 native Network.onDisconnect() running code twice
I hope this helps.... besides there is no need to check during splashscreen.... make a provider for check network status, and then call your new provider/service in app.component.ts
Oh and dont pay attention to the message:Native: tried calling Network.type, but the Network plugin is not installed.
Just make sure you have added it correctly: ionic plugin add cordova-plugin-network-information --save
reference from this -
https://ionicframework.com/docs/native/network/
install :
$ ionic cordova plugin add cordova-plugin-network-information
$ npm install --save #ionic-native/network
and put this code in app.component.ts
import { Network } from '#ionic-native/network';
constructor(private network: Network) { }
// watch network for a disconnect
let disconnectSubscription =
this.network.onDisconnect().subscribe(() => {
console.log('network was disconnected :-(');
});
// stop disconnect watch
disconnectSubscription.unsubscribe();
// watch network for a connection
let connectSubscription = this.network.onConnect().subscribe(() =>
{
console.log('network connected!');
// We just got a connection but we need to wait briefly
// before we determine the connection type. Might need to wait.
// prior to doing any api requests as well.
setTimeout(() => {
if (this.network.type === 'wifi') {
console.log('we got a wifi connection, woohoo!');
}
}, 3000);
});
// stop connect watch
connectSubscription.unsubscribe();
and add code in to app.module.ts
import { Network } from '#ionic-native/network';
...
#NgModule({
...
providers: [
...
Network
...
]
...
})
export class AppModule { }`
Hope this will helpful.
I'm already created cordova plugin and already used in Ionic 1, its worked. Then I tried to use it in Ionic 2 but I don't really know how to call that plugin. I follow the step from here to create my own plugin. And this is what i did:
plugin.xml
<name>myPlugin</name>
<js-module src="www/myPlugin.js" name="myPlugin">
<clobbers target="myPlugin" />
</js-module>
myPlugin.js
module.exports = {
myFunction: function (success, failure) {
cordova.exec(success, failure, "myPlugin", "myFunction", []);
}
};
hello-ionic.ts
import { Component } from '#angular/core';
declare var cordova: any;
#Component({
selector: 'page-hello-ionic',
templateUrl: 'hello-ionic.html'
})
export class HelloIonicPage {
constructor() {
}
click() {
if (typeof cordova !== 'undefined') {
cordova.plugins.myPlugin.myFunction();
}
}
}
But unfortunately it return me an error "Undefined myFunction" in hello-ionic.ts.
Here is what I did.
hello-ionic.ts
import { Component } from '#angular/core';
declare var myPlugin: any;
#Component({
selector: 'page-hello-ionic',
templateUrl: 'hello-ionic.html'
})
export class HelloIonicPage {
constructor() {
}
click() {
myPlugin.myFuntion(
(data) => {
console.log(data);
},
(err) => {
console.log(err);
});
}
}
declare var myPlugin: any; , myPlugin name I get from <clobbers target="myPlugin" />.
Note: Need to run the project in device only.
Following tutorial is a good resource to learn how to create custom cordova plugin :
https://taco.visualstudio.com/en-us/docs/createplugintutorial/
I have followed this tutorial to create multiple custom plugins and those are working fine in Ionic2.
One more thing to point out that the tutorial has not mentioned that:
You have to add your custom plugin in your ionic 2 project using following command:
ionic plugin add "folder path of your custom plugin"
Updated:
In your plugin.xml file, you have set "myPlugin" as target in clobbers tag.
So you should call your function as followed
window.myPlugin.myFunction();
Tip: Whenever you use custom plugin created by you(or someone else), inspect the application using Chrome Developer tools. In console tab of developer tools, you can inspect the window and other available objects and can find out correct way to call plugin's methods.
I am trying deeplinks with ionic 2 according to the procedure explained here, https://ionicframework.com/docs/v2/native/ionic-deeplinks/
First I added the plugin using,
ionic plugin add ionic-plugin-deeplinks --variable URL_SCHEME=http --variable DEEPLINK_HOST=cityknots.com
Then in my app.component.ts
export class MyApp {
rootPage = Wrapper;
constructor(platform:Platform) {
platform.ready().then(() => {
// Okay, so the platform is ready and our plugins are available.
// Here you can do any higher level native things you might need.
StatusBar.styleDefault();
Deeplinks.route({
'/test': UserHome
}).subscribe((match) => {
console.log('Successfully routed', match);
}, (nomatch) => {
console.warn('Unmatched Route', nomatch);
});
});
}
}
I try to hit the url (http://cityknots.com/test in the ios simulator's browser (safari) after i've built and run the app, but nothing is happening. I expect the app should be launched and navigate to UserHome component. There is nothing in the console too related to this.
I started a new ionic 2 rc0 app by copying the files of my old beta11 project. I did the necessary steps as described under
Copying your Project to a New Project : ionic 2 rc0 changelog
Now finally after getting no more compiler errors when I run
ionic run android -c
I'm just getting a whitescreen on my android phone.
Chrome debug is logging me
Uncaught Error: No provider for t!
When I'm running
ionic serve -c
the firefox logs me
Unhandled Promise rejection: No provider for ConnectionBackend! ;
Zone: ; Task: Promise.then ; Value: Object { ...
app.module.ts looks like:
import { NgModule } from '#angular/core';
import { IonicApp, IonicModule } from 'ionic-angular';
import { MyApp } from './app.component';
import { Storage } from '#ionic/storage'; // special thing
import { Http } from '#angular/http';#
// other imports ....
#NgModule({
declarations: [
MyApp,
// PAGES
// MODALS
// CUSTOM COMPONENTS
// DIRECTIVES
],
imports: [
IonicModule.forRoot(MyApp)
],
bootstrap: [IonicApp],
entryComponents: [
MyApp,
// PAGES
// MODALS
],
providers: [
Storage,
Http,
// SERVICES/PROVIDERS
]
})
export class AppModule {}
I'm guessing there is something wrong with a provider somewhere, but I just can't find a solution ...
System : ubuntu 16.04 / node v6.7.0 / npm v3.10.3
EDIT :
I started a new sidemenu project with
ionic start debugProject sidemenu --v2
I did this to to debug the providers by sequentially adding the providers of my original Project. It appears that, when I inject the first provider called "Config" in the constructor of app.components.ts
import { Component } from '#angular/core';
import { Platform } from 'ionic-angular';
import { StatusBar } from 'ionic-native';
import { TabsPage } from '../pages/tabs/tabs';
// PROVIDERS -> providers
import { Config } from '../providers/config/config';
#Component({
template: `<ion-nav [root]="rootPage"></ion-nav>`
})
export class MyApp {
rootPage = TabsPage;
constructor(
platform : Platform,
config : Config <-------------(HERE !!! )
) { .....
I get the the Error message like before:
Unhandled Promise rejection: No provider for ConnectionBackend! ;
Zone: ; Task: Promise.then ; Value: Object { ...
config.ts
import { Injectable } from '#angular/core';
import 'rxjs/add/operator/map';
import 'rxjs/add/operator/toPromise';
// providers
import { Http } from '#angular/http';
//import { DB } from '../db/db';
#Injectable()
export class Config {
public data : any;
constructor(
public http : Http,
//public db : DB
){
this.data = {};
}
loadDefault() {
this.data = {
..........................
// DATA OBJECT DEFINITIONS
...........................
};
return Promise.resolve("default settings applied");
}
loadSettingsFromDB(){
return Promise.resolve("no local settings from db for now");
}
// TODO: send settings to server
saveSettingsToDB(settings){
return Promise.resolve("cant save settings for now");
}
handleError(err) : void {
// error stacktrace gets returned on development mode
try{
err = err.json();
}catch(e){}
var msg = err.message || "LOADING ERROR";
if(err.error){
msg += err.error;
//Toast.showLongBottom(msg).subscribe();
}else{
//Toast.showShortBottom(msg).subscribe();
}
console.log("ERROR in config.ts");
console.log(msg);
console.log(err);
}
}
any ideas ? if not, any experience about opening a new issue on github ?
I found the solution. It seems like I can't/shouldn't use the Http module in the providers array in app.modules.ts (In beta11 this was not a problem). My Config module relied on Http, so after constructing Config the application Error (No provider for ConnectionBackend) fired ...