NativeScript/tests/app/ui/button/button-tests-native.android.ts

import * as buttonModule from "tns-core-modules/ui/button";
import * as colorModule from "tns-core-modules/color";
import * as utilsModule from "tns-core-modules/utils/utils";
import * as enums from "tns-core-modules/ui/enums";

export function getNativeText(button: buttonModule.Button): string {
    return button.android.getText();
}

export function getNativeTextWrap(button: buttonModule.Button): boolean {
    return ((<android.widget.Button>button.android).getLineCount() === 1);
}

export function getNativeFontSize(button: buttonModule.Button): number {
    var density = utilsModule.layout.getDisplayDensity();

    return button.android.getTextSize() / density;
}

export function getNativeColor(button: buttonModule.Button): colorModule.Color {
    return new colorModule.Color(button.android.getTextColors().getDefaultColor());
}

export function getNativeBackgroundColor(button: buttonModule.Button): colorModule.Color {
    var bkg = <any>button.android.getBackground();
    if (bkg instanceof org.nativescript.widgets.BorderDrawable) {
        return new colorModule.Color((<org.nativescript.widgets.BorderDrawable>bkg).getBackgroundColor());
    }
    else {
        return new colorModule.Color(bkg.backgroundColor);
    }
}

export function getNativeTextAlignment(button: buttonModule.Button): string {
    var gravity = button.android.getGravity();

    if ((gravity & android.view.Gravity.HORIZONTAL_GRAVITY_MASK) === android.view.Gravity.LEFT) {
        return enums.TextAlignment.left;
    }

    if ((gravity & android.view.Gravity.HORIZONTAL_GRAVITY_MASK) === android.view.Gravity.CENTER_HORIZONTAL) {
        return enums.TextAlignment.center;
    }

    if ((gravity & android.view.Gravity.HORIZONTAL_GRAVITY_MASK) === android.view.Gravity.RIGHT) {
        return enums.TextAlignment.right;
    }

    return "unexpected value";
}

export function performNativeClick(button: buttonModule.Button): void {
    button.android.performClick();
}