package com.gc.materialdesign.views;
import com.gc.materialdesign.R;
import com.gc.materialdesign.utils.Utils;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.Rect;
import android.graphics.Bitmap.Config;
import android.graphics.drawable.GradientDrawable;
import android.graphics.drawable.LayerDrawable;
import android.util.AttributeSet;
import android.view.MotionEvent;
import android.widget.TextView;
public abstract class Button extends CustomView {
final static String ANDROIDXML = "http://schemas.android.com/apk/res/android";
// Complete in child class
int minWidth;
int minHeight;
int background;
float rippleSpeed = 12f;
int rippleSize = 3;
Integer rippleColor;
OnClickListener onClickListener;
boolean clickAfterRipple = true;
int backgroundColor = Color.parseColor("#1E88E5");
TextView textButton;
public Button(Context context, AttributeSet attrs) {
super(context, attrs);
setDefaultProperties();
clickAfterRipple = attrs.getAttributeBooleanValue(MATERIALDESIGNXML,
"animate", true);
setAttributes(attrs);
beforeBackground = backgroundColor;
if (rippleColor == null)
rippleColor = makePressColor();
}
protected void setDefaultProperties() {
// Min size
setMinimumHeight(Utils.dpToPx(minHeight, getResources()));
setMinimumWidth(Utils.dpToPx(minWidth, getResources()));
// Background shape
setBackgroundResource(background);
setBackgroundColor(backgroundColor);
}
// Set atributtes of XML to View
abstract protected void setAttributes(AttributeSet attrs);
// ### RIPPLE EFFECT ###
float x = -1, y = -1;
float radius = -1;
@Override
public boolean onTouchEvent(MotionEvent event) {
invalidate();
if (isEnabled()) {
isLastTouch = true;
if (event.getAction() == MotionEvent.ACTION_DOWN) {
radius = getHeight() / rippleSize;
x = event.getX();
y = event.getY();
} else if (event.getAction() == MotionEvent.ACTION_MOVE) {
radius = getHeight() / rippleSize;
x = event.getX();
y = event.getY();
if (!((event.getX() <= getWidth() && event.getX() >= 0) && (event
.getY() <= getHeight() && event.getY() >= 0))) {
isLastTouch = false;
x = -1;
y = -1;
}
} else if (event.getAction() == MotionEvent.ACTION_UP) {
if ((event.getX() <= getWidth() && event.getX() >= 0)
&& (event.getY() <= getHeight() && event.getY() >= 0)) {
radius++;
if (!clickAfterRipple && onClickListener != null) {
onClickListener.onClick(this);
}
} else {
isLastTouch = false;
x = -1;
y = -1;
}
} else if (event.getAction() == MotionEvent.ACTION_CANCEL) {
isLastTouch = false;
x = -1;
y = -1;
}
}
return true;
}
@Override
protected void onFocusChanged(boolean gainFocus, int direction,
Rect previouslyFocusedRect) {
if (!gainFocus) {
x = -1;
y = -1;
}
}
@Override
public boolean onInterceptTouchEvent(MotionEvent ev) {
// super.onInterceptTouchEvent(ev);
return true;
}
public Bitmap makeCircle() {
Bitmap output = Bitmap.createBitmap(
getWidth() - Utils.dpToPx(6, getResources()), getHeight()
- Utils.dpToPx(7, getResources()), Config.ARGB_8888);
Canvas canvas = new Canvas(output);
canvas.drawARGB(0, 0, 0, 0);
Paint paint = new Paint();
paint.setAntiAlias(true);
paint.setColor(rippleColor);
canvas.drawCircle(x, y, radius, paint);
if (radius > getHeight() / rippleSize)
radius += rippleSpeed;
if (radius >= getWidth()) {
x = -1;
y = -1;
radius = getHeight() / rippleSize;
if (onClickListener != null && clickAfterRipple)
onClickListener.onClick(this);
}
return output;
}
/**
* Make a dark color to ripple effect
*
* @return
*/
protected int makePressColor() {
int r = (this.backgroundColor >> 16) & 0xFF;
int g = (this.backgroundColor >> 8) & 0xFF;
int b = (this.backgroundColor >> 0) & 0xFF;
r = (r - 30 < 0) ? 0 : r - 30;
g = (g - 30 < 0) ? 0 : g - 30;
b = (b - 30 < 0) ? 0 : b - 30;
return Color.rgb(r, g, b);
}
@Override
public void setOnClickListener(OnClickListener l) {
onClickListener = l;
}
// Set color of background
public void setBackgroundColor(int color) {
this.backgroundColor = color;
if (isEnabled())
beforeBackground = backgroundColor;
try {
LayerDrawable layer = (LayerDrawable) getBackground();
GradientDrawable shape = (GradientDrawable) layer
.findDrawableByLayerId(R.id.shape_bacground);
shape.setColor(backgroundColor);
rippleColor = makePressColor();
} catch (Exception ex) {
// Without bacground
}
}
public void setRippleSpeed(float rippleSpeed) {
this.rippleSpeed = rippleSpeed;
}
public float getRippleSpeed() {
return this.rippleSpeed;
}
public void setText(String text) {
textButton.setText(text);
}
public void setTextColor(int color) {
textButton.setTextColor(color);
}
public TextView getTextView() {
return textButton;
}
public String getText() {
return textButton.getText().toString();
}
}