private void ChangeColor(Color newColor) {
tabs.SetBackgroundColor(newColor);
// change ActionBar color just if an ActionBar is available
Drawable colorDrawable = new ColorDrawable(newColor);
Drawable bottomDrawable = new ColorDrawable(Resources.GetColor(Android.Resource.Color.Transparent));
LayerDrawable ld = new LayerDrawable(new Drawable[]{colorDrawable, bottomDrawable});
if (oldBackground == null) {
SupportActionBar.SetBackgroundDrawable(ld);
} else {
TransitionDrawable td = new TransitionDrawable(new Drawable[]{oldBackground, ld});
SupportActionBar.SetBackgroundDrawable(td);
td.StartTransition(200);
}
oldBackground = ld;
currentColor = newColor;
}
public static void UpdateBackground(Border border, Android.Views.View view)
{
var strokeThickness = border.StrokeThickness;
var context = view.Context;
// create stroke drawable
GradientDrawable strokeDrawable = null;
// if thickness exists, set stroke drawable stroke and radius
if(strokeThickness.HorizontalThickness + strokeThickness.VerticalThickness > 0) {
strokeDrawable = new GradientDrawable ();
strokeDrawable.SetColor (border.BackgroundColor.ToAndroid ());
// choose thickest margin
// the content is padded so it will look like the margin is with the given thickness
strokeDrawable.SetStroke ((int)context.ToPixels (strokeThickness.ThickestSide()), border.Stroke.ToAndroid ());
strokeDrawable.SetCornerRadius ((float)border.CornerRadius);
}
// create background drawable
var backgroundDrawable = new GradientDrawable ();
// set background drawable color based on Border's background color
backgroundDrawable.SetColor (border.BackgroundColor.ToAndroid ());
backgroundDrawable.SetCornerRadius((float)border.CornerRadius);
if (strokeDrawable != null) {
// if stroke drawable exists, create a layer drawable containing both stroke and background drawables
var ld = new LayerDrawable (new Drawable[] { strokeDrawable, backgroundDrawable });
ld.SetLayerInset (1, (int)context.ToPixels (strokeThickness.Left), (int)context.ToPixels (strokeThickness.Top), (int)context.ToPixels (strokeThickness.Right), (int)context.ToPixels (strokeThickness.Bottom));
view.SetBackgroundDrawable (ld);
} else {
view.SetBackgroundDrawable (backgroundDrawable);
}
// set Android.View's padding to take into account the stroke thickiness
view.SetPadding (
(int)context.ToPixels (strokeThickness.Left + border.Padding.Left),
(int)context.ToPixels (strokeThickness.Top + border.Padding.Top),
(int)context.ToPixels (strokeThickness.Right + border.Padding.Right),
(int)context.ToPixels (strokeThickness.Bottom + border.Padding.Bottom));
}
private void UpdateColors()
{
var button = Element as ShadowButton;
var normal = new Android.Graphics.Drawables.GradientDrawable ();
normal.SetColor (button.BackgroundColor.ToAndroid ());
normal.SetStroke ((int)button.BorderWidth, button.BorderColor.ToAndroid ());
normal.SetCornerRadius (button.BorderRadius);
var shadow = new Android.Graphics.Drawables.GradientDrawable ();
shadow.SetColor (button.ShadowColor.ToAndroid ());
shadow.SetStroke ((int)button.BorderWidth, button.ShadowColor.ToAndroid ());
shadow.SetCornerRadius (button.BorderRadius);
_normal = new Android.Graphics.Drawables.LayerDrawable (
new Drawable [] { shadow, normal }
);
var density = 3;
_normal.SetLayerInset (1, 0, 0, 0, 2 * density);
_pressed = new Android.Graphics.Drawables.GradientDrawable ();
var highlight = Context.ObtainStyledAttributes (new int [] {
Android.Resource.Attribute.ColorActivatedHighlight
}).GetColor(0, Android.Graphics.Color.Gray);
_pressed.SetColor (highlight);
_pressed.SetStroke ((int)button.BorderWidth, button.BorderColor.ToAndroid ());
_pressed.SetCornerRadius (button.BorderRadius);
var sld = new StateListDrawable ();
sld.AddState (new int[] { Android.Resource.Attribute.StatePressed }, _pressed);
sld.AddState (new int[] {}, _normal );
Control.SetPaddingRelative (0, 0, 2, 0);
Control.SetBackgroundDrawable (sld);
}
public static void SetTheme(EditText editText, FlatTheme theme,
FlatUI.FlatFontFamily fontFamily, FlatUI.FlatFontWeight fontWeight, FlatUI.FlatTextAppearance textAppearance,
int style, int radius, int padding, int border)
{
float[] outerR = new float[]{radius, radius, radius, radius, radius, radius, radius, radius};
// creating normal state drawable
var normalFront = new ShapeDrawable(new RoundRectShape(outerR, null, null));
normalFront.SetPadding(padding, padding, padding, padding);
var normalBack = new ShapeDrawable(new RoundRectShape(outerR, null, null));
normalBack.SetPadding(border, border, border, border);
if (style == 0) { // flat
normalFront.Paint.Color = Color.Transparent;
normalBack.Paint.Color = theme.LightAccentColor;
editText.SetTextColor(theme.VeryLightAccentColor);
} else if (style == 1) { // box
normalFront.Paint.Color = Color.White;
normalBack.Paint.Color = theme.LightAccentColor;
editText.SetTextColor(theme.BackgroundColor);
} else if (style == 2) { // transparent
normalFront.Paint.Color = Color.Transparent;
normalBack.Paint.Color = Color.Transparent;
editText.SetTextColor(theme.BackgroundColor);
}
Drawable[] d = {normalBack, normalFront};
LayerDrawable normal = new LayerDrawable(d);
editText.SetBackgroundDrawable(normal);
editText.SetHintTextColor(theme.VeryLightAccentColor);
if (textAppearance == FlatUI.FlatTextAppearance.Dark) editText.SetTextColor(theme.DarkAccentColor);
else if (textAppearance == FlatUI.FlatTextAppearance.Light) editText.SetTextColor(theme.VeryLightAccentColor);
var typeface = FlatUI.GetFont(editText.Context, fontFamily, fontWeight);
if (typeface != null)
editText.SetTypeface(typeface, TypefaceStyle.Normal);
}
public static void SetTheme(CheckBox checkBox, FlatTheme theme,
FlatUI.FlatFontFamily fontFamily, FlatUI.FlatFontWeight fontWeight, int radius, int size, int border)
{
// creating unchecked-enabled state drawable
GradientDrawable uncheckedEnabled = new GradientDrawable();
uncheckedEnabled.SetCornerRadius(radius);
uncheckedEnabled.SetSize(size, size);
uncheckedEnabled.SetColor(Color.Transparent);
uncheckedEnabled.SetStroke(border, theme.LightAccentColor);
// creating checked-enabled state drawable
GradientDrawable checkedOutside = new GradientDrawable();
checkedOutside.SetCornerRadius(radius);
checkedOutside.SetSize(size, size);
checkedOutside.SetColor(Color.Transparent);
checkedOutside.SetStroke(border, theme.LightAccentColor);
PaintDrawable checkedCore = new PaintDrawable(theme.LightAccentColor);
checkedCore.SetCornerRadius(radius);
checkedCore.SetIntrinsicHeight(size);
checkedCore.SetIntrinsicWidth(size);
InsetDrawable checkedInside = new InsetDrawable(checkedCore, border + 2, border + 2, border + 2, border + 2);
Drawable[] checkedEnabledDrawable = {checkedOutside, checkedInside};
LayerDrawable checkedEnabled = new LayerDrawable(checkedEnabledDrawable);
// creating unchecked-enabled state drawable
GradientDrawable uncheckedDisabled = new GradientDrawable();
uncheckedDisabled.SetCornerRadius(radius);
uncheckedDisabled.SetSize(size, size);
uncheckedDisabled.SetColor(Color.Transparent);
uncheckedDisabled.SetStroke(border, theme.VeryLightAccentColor);
// creating checked-disabled state drawable
GradientDrawable checkedOutsideDisabled = new GradientDrawable();
checkedOutsideDisabled.SetCornerRadius(radius);
checkedOutsideDisabled.SetSize(size, size);
checkedOutsideDisabled.SetColor(Color.Transparent);
checkedOutsideDisabled.SetStroke(border, theme.VeryLightAccentColor);
PaintDrawable checkedCoreDisabled = new PaintDrawable(theme.VeryLightAccentColor);
checkedCoreDisabled.SetCornerRadius(radius);
checkedCoreDisabled.SetIntrinsicHeight(size);
checkedCoreDisabled.SetIntrinsicWidth(size);
InsetDrawable checkedInsideDisabled = new InsetDrawable(checkedCoreDisabled, border + 2, border + 2, border + 2, border + 2);
Drawable[] checkedDisabledDrawable = {checkedOutsideDisabled, checkedInsideDisabled};
LayerDrawable checkedDisabled = new LayerDrawable(checkedDisabledDrawable);
StateListDrawable states = new StateListDrawable();
states.AddState(new int[]{-Android.Resource.Attribute.StateChecked, Android.Resource.Attribute.StateEnabled}, uncheckedEnabled);
states.AddState(new int[]{Android.Resource.Attribute.StateChecked, Android.Resource.Attribute.StateEnabled}, checkedEnabled);
states.AddState(new int[]{-Android.Resource.Attribute.StateChecked, -Android.Resource.Attribute.StateEnabled}, uncheckedDisabled);
states.AddState(new int[]{Android.Resource.Attribute.StateChecked, -Android.Resource.Attribute.StateEnabled}, checkedDisabled);
checkBox.SetButtonDrawable(states);
// setting padding for avoiding text to be appear on icon
checkBox.SetPadding(size / 4 * 5, 0, 0, 0);
checkBox.SetTextColor(theme.LightAccentColor);
var typeface = FlatUI.GetFont(checkBox.Context, fontFamily, fontWeight);
if (typeface != null)
checkBox.SetTypeface(typeface, TypefaceStyle.Normal);
}
private void ChangeColor(Color newColor)
{
_tabs.IndicatorColor = newColor;
_tabs.TextColor = newColor;
// change ActionBar color just if an ActionBar is available
if (Build.VERSION.SdkInt >= Android.OS.BuildVersionCodes.Honeycomb)
{
Drawable colorDrawable = new ColorDrawable(newColor);
Drawable bottomDrawable = Resources.GetDrawable(Resource.Drawable.actionbar_bottom);
LayerDrawable ld = new LayerDrawable(new Drawable[] { colorDrawable, bottomDrawable });
if (_oldBackground == null)
{
if ((int)Build.VERSION.SdkInt < 17)
{
ld.Callback = _drawableCallback;
}
else
{
ActionBar.SetBackgroundDrawable(ld);
}
}
else
{
TransitionDrawable td = new TransitionDrawable(new Drawable[] { _oldBackground, ld });
// workaround for broken ActionBarContainer drawable handling on
// pre-API 17 builds
// https://github.com/android/platform_frameworks_base/commit/a7cc06d82e45918c37429a59b14545c6a57db4e4
if ((int)Build.VERSION.SdkInt < 17)
{
td.Callback = _drawableCallback;
}
else
{
ActionBar.SetBackgroundDrawable(td);
}
td.StartTransition(200);
}
_oldBackground = ld;
// http://stackoverflow.com/questions/11002691/actionbar-setbackgrounddrawable-nulling-background-from-thread-handler
ActionBar.SetDisplayShowTitleEnabled(false);
ActionBar.SetDisplayShowTitleEnabled(true);
}
_currentColor = newColor;
}
private Drawable CreateDrawable (int color)
{
var ovalShape = new OvalShape ();
var shapeDrawable = new ShapeDrawable (ovalShape);
shapeDrawable.Paint.Color = new Color (color);
if (hasShadow && !HasLollipopApi) {
var shadowDrawable = Resources.GetDrawable (size == FabSize.Normal ?
Resource.Drawable.fab_shadow :
Resource.Drawable.fab_shadow_mini);
var layerDrawable = new LayerDrawable (new Drawable[]{ shadowDrawable, shapeDrawable });
layerDrawable.SetLayerInset (1, shadowSize, shadowSize, shadowSize, shadowSize);
return layerDrawable;
} else {
return shapeDrawable;
}
}
public static void SetTheme (ToggleButton toggleButton, FlatTheme theme, int padding, int size)
{
toggleButton.SetWidth(size * 5);
toggleButton.SetHeight(size);
//setTextOff("");
//setTextOn("");
int radius = size - 4;
float[] outerR = new float[]{radius, radius, radius, radius, radius, radius, radius, radius};
// creating unchecked-enabled state drawable
var uncheckedEnabledFrontCore = new ShapeDrawable(new RoundRectShape(outerR, null, null));
uncheckedEnabledFrontCore.Paint.Color = theme.LightAccentColor;
var uncheckedEnabledFront = new InsetDrawable(uncheckedEnabledFrontCore, 5);
var uncheckedEnabledBack = new ShapeDrawable(new RoundRectShape(outerR, null, null));
uncheckedEnabledBack.Paint.Color = Color.ParseColor("#f2f2f2");
uncheckedEnabledBack.SetPadding(0, 0, size / 2 * 5, 0);
Drawable[] d1 = {uncheckedEnabledBack, uncheckedEnabledFront};
var uncheckedEnabled = new LayerDrawable(d1);
// creating checked-enabled state drawable
var checkedEnabledFrontCore = new ShapeDrawable(new RoundRectShape(outerR, null, null));
checkedEnabledFrontCore.Paint.Color = theme.LightAccentColor;
var checkedEnabledFront = new InsetDrawable(checkedEnabledFrontCore, 5);
ShapeDrawable checkedEnabledBack = new ShapeDrawable(new RoundRectShape(outerR, null, null));
checkedEnabledBack.Paint.Color = theme.VeryLightAccentColor;
checkedEnabledBack.SetPadding(size / 2 * 5, 0, 0, 0);
Drawable[] d2 = {checkedEnabledBack, checkedEnabledFront};
LayerDrawable checkedEnabled = new LayerDrawable(d2);
// creating unchecked-disabled state drawable
ShapeDrawable uncheckedDisabledFrontCore = new ShapeDrawable(new RoundRectShape(outerR, null, null));
uncheckedDisabledFrontCore.Paint.Color = Color.ParseColor("#d2d2d2");
InsetDrawable uncheckedDisabledFront = new InsetDrawable(uncheckedDisabledFrontCore, 5);
ShapeDrawable uncheckedDisabledBack = new ShapeDrawable(new RoundRectShape(outerR, null, null));
uncheckedDisabledBack.Paint.Color = Color.ParseColor("#f2f2f2");
uncheckedDisabledBack.SetPadding(0, 0, size / 2 * 5, 0);
Drawable[] d3 = {uncheckedDisabledBack, uncheckedDisabledFront};
LayerDrawable uncheckedDisabled = new LayerDrawable(d3);
// creating checked-disabled state drawable
ShapeDrawable checkedDisabledFrontCore = new ShapeDrawable(new RoundRectShape(outerR, null, null));
checkedDisabledFrontCore.Paint.Color = theme.VeryLightAccentColor;
InsetDrawable checkedDisabledFront = new InsetDrawable(checkedDisabledFrontCore, 5);
ShapeDrawable checkedDisabledBack = new ShapeDrawable(new RoundRectShape(outerR, null, null));
checkedDisabledBack.Paint.Color = Color.ParseColor("#f2f2f2");
checkedDisabledBack.SetPadding(size / 2 * 5, 0, 0, 0);
Drawable[] d4 = {checkedDisabledBack, checkedDisabledFront};
LayerDrawable checkedDisabled = new LayerDrawable(d4);
toggleButton.SetPadding(0, padding, 0, padding);
PaintDrawable paintDrawable = new PaintDrawable(theme.BackgroundColor);
paintDrawable.SetIntrinsicHeight(size);
paintDrawable.SetIntrinsicWidth(size);
paintDrawable.SetPadding(size, 0, 0, 0);
StateListDrawable states = new StateListDrawable();
states.AddState(new int[]{-Android.Resource.Attribute.StateChecked, Android.Resource.Attribute.StateEnabled},
new InsetDrawable(uncheckedEnabled, padding * 2));
states.AddState(new int[]{Android.Resource.Attribute.StateChecked, Android.Resource.Attribute.StateEnabled},
new InsetDrawable(checkedEnabled, padding * 2));
states.AddState(new int[]{-Android.Resource.Attribute.StateChecked, -Android.Resource.Attribute.StateEnabled},
new InsetDrawable(uncheckedDisabled, padding * 2));
states.AddState(new int[]{Android.Resource.Attribute.StateChecked, -Android.Resource.Attribute.StateEnabled},
new InsetDrawable(checkedDisabled, padding * 2));
toggleButton.SetBackgroundDrawable(states);
toggleButton.SetTextSize(ComplexUnitType.Sp, 0);
}
public static void SetActionBarTheme(Activity context, FlatTheme theme, bool dark)
{
var color1 = theme.LightAccentColor;
var color2 = theme.BackgroundColor;
if (dark)
{
color1 = theme.BackgroundColor;
color2 = theme.DarkAccentColor;
}
var front = new PaintDrawable(color1);
var bottom = new PaintDrawable(color2);
var d = new Drawable[] { bottom, front};
var drawable = new LayerDrawable(d);
drawable.SetLayerInset(1, 0, 0, 0, 3);
var actionBar = context.ActionBar;
actionBar.SetBackgroundDrawable(drawable);
// invalidating action bar
actionBar.Title = actionBar.Title;
}
public static void SetTheme(Button button, FlatTheme theme, FlatUI.FlatTextAppearance textAppearance,
FlatUI.FlatFontFamily fontFamily, FlatUI.FlatFontWeight fontWeight, bool isFullFlat, int padding, int radius)
{
var bottom = 5;
float[] outerR = {radius, radius, radius, radius, radius, radius, radius, radius};
// creating normal state drawable
var normalFront = new ShapeDrawable(new RoundRectShape(outerR, null, null));
normalFront.Paint.Color = theme.LightAccentColor;
normalFront.SetPadding(padding, padding, padding, padding);
var normalBack = new ShapeDrawable(new RoundRectShape(outerR, null, null));
normalBack.Paint.Color = theme.BackgroundColor;
if (isFullFlat)
bottom = 0;
normalBack.SetPadding(0, 0, 0, bottom);
Drawable[] d = {normalBack, normalFront};
var normal = new LayerDrawable(d);
// creating pressed state drawable
var pressedFront = new ShapeDrawable(new RoundRectShape(outerR, null, null));
pressedFront.Paint.Color = theme.BackgroundColor;
var pressedBack = new ShapeDrawable(new RoundRectShape(outerR, null, null));
pressedBack.Paint.Color = theme.DarkAccentColor;
if (!isFullFlat)
pressedBack.SetPadding(0, 0, 0, 3);
Drawable[] d2 = {pressedBack, pressedFront};
var pressed = new LayerDrawable(d2);
// creating disabled state drawable
var disabledFront = new ShapeDrawable(new RoundRectShape(outerR, null, null));
disabledFront.Paint.Color = theme.VeryLightAccentColor;
var disabledBack = new ShapeDrawable(new RoundRectShape(outerR, null, null));
disabledBack.Paint.Color = theme.LightAccentColor;
if (!isFullFlat) disabledBack.SetPadding(0, 0, 0, padding);
Drawable[] d3 = {disabledBack, disabledFront};
var disabled = new LayerDrawable(d3);
var states = new StateListDrawable();
states.AddState(new []{ Android.Resource.Attribute.StatePressed, Android.Resource.Attribute.StateEnabled }, pressed);
states.AddState(new []{ Android.Resource.Attribute.StateFocused, Android.Resource.Attribute.StateEnabled }, pressed);
states.AddState(new []{ Android.Resource.Attribute.StateEnabled }, normal);
states.AddState(new []{-Android.Resource.Attribute.StateEnabled}, disabled);
button.SetBackgroundDrawable (states);
if (textAppearance == FlatUI.FlatTextAppearance.Dark)
button.SetTextColor(theme.DarkAccentColor);
else if (textAppearance == FlatUI.FlatTextAppearance.Light)
button.SetTextColor(theme.VeryLightAccentColor);
else
button.SetTextColor(Android.Graphics.Color.White);
var typeface = FlatUI.GetFont(button.Context, fontFamily, fontWeight);
if (typeface != null)
button.SetTypeface(typeface, Android.Graphics.TypefaceStyle.Normal);
}