constructor(
private navCtrl: NavController,
private navParams: NavParams,
private plt: Platform
) {
this.width = this.plt.width();
this.height = this.plt.height();
this.isLand = this.plt.isLandscape();
this.isPortrait = this.plt.isPortrait();
this.isRTL = this.plt.isRTL;
console.log('29 -- platform version: ', this.plt.version());
this.currUrl = this.plt.url();
this.currDir = this.plt.dir();
}