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.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.Rect;
import android.graphics.drawable.GradientDrawable;
import android.graphics.drawable.LayerDrawable;
import android.util.AttributeSet;
import android.view.MotionEvent;
import android.view.View;
import android.widget.RelativeLayout;
import android.widget.TextView;
public class CheckBox extends CustomView {
int backgroundColor = Color.parseColor("#4CAF50");
Check checkView;
boolean press = false;
boolean check = false;
OnCheckListener onCheckListener;
public CheckBox(Context context, AttributeSet attrs) {
super(context, attrs);
setAttributes(attrs);
}
// Set atributtes of XML to View
protected void setAttributes(AttributeSet attrs) {
setBackgroundResource(R.drawable.background_checkbox);
// Set size of view
setMinimumHeight(Utils.dpToPx(48, getResources()));
setMinimumWidth(Utils.dpToPx(48, getResources()));
// Set background Color
// Color by resource
int bacgroundColor = attrs.getAttributeResourceValue(ANDROIDXML,
"background", -1);
if (bacgroundColor != -1) {
setBackgroundColor(getResources().getColor(bacgroundColor));
} else {
// Color by hexadecimal
// Color by hexadecimal
int background = attrs.getAttributeIntValue(ANDROIDXML, "background", -1);
if (background != -1)
setBackgroundColor(background);
}
final boolean check = attrs.getAttributeBooleanValue(MATERIALDESIGNXML,
"check", false);
post(new Runnable() {
@Override
public void run() {
setChecked(check);
setPressed(false);
changeBackgroundColor(getResources().getColor(
android.R.color.transparent));
}
});
checkView = new Check(getContext());
checkView.setId(View.generateViewId());
RelativeLayout.LayoutParams params = new LayoutParams(Utils.dpToPx(20,
getResources()), Utils.dpToPx(20, getResources()));
params.addRule(RelativeLayout.CENTER_IN_PARENT, RelativeLayout.TRUE);
checkView.setLayoutParams(params);
addView(checkView);
// Adding text view to checkbox
int textResource = attrs.getAttributeResourceValue(ANDROIDXML, "text", -1);
String text = null;
if(textResource != -1) {
text = getResources().getString(textResource);
} else {
text = attrs.getAttributeValue(ANDROIDXML, "text");
}
if(text != null) {
params.removeRule(RelativeLayout.CENTER_IN_PARENT);
params.addRule(RelativeLayout.CENTER_VERTICAL, RelativeLayout.TRUE);
TextView textView = new TextView(getContext());
RelativeLayout.LayoutParams textViewLayoutParams = new LayoutParams(LayoutParams.WRAP_CONTENT,
LayoutParams.WRAP_CONTENT);
textViewLayoutParams.addRule(RelativeLayout.RIGHT_OF, checkView.getId());
textViewLayoutParams.addRule(RelativeLayout.CENTER_VERTICAL, RelativeLayout.TRUE);
textViewLayoutParams.setMargins(10, 0, 0, 0);
textView.setLayoutParams(textViewLayoutParams);
textView.setText(text);
addView(textView);
}
}
@Override
public void invalidate() {
checkView.invalidate();
super.invalidate();
}
@Override
public boolean onTouchEvent(MotionEvent event) {
invalidate();
if (isEnabled()) {
isLastTouch = true;
if (event.getAction() == MotionEvent.ACTION_DOWN) {
changeBackgroundColor((check) ? makePressColor() : Color
.parseColor("#446D6D6D"));
} else if (event.getAction() == MotionEvent.ACTION_UP) {
changeBackgroundColor(getResources().getColor(
android.R.color.transparent));
press = false;
if ((event.getX() <= getWidth() && event.getX() >= 0)
&& (event.getY() <= getHeight() && event.getY() >= 0)) {
isLastTouch = false;
check = !check;
if (onCheckListener != null)
onCheckListener.onCheck(CheckBox.this, check);
if (check) {
step = 0;
}
if (check)
checkView.changeBackground();
}
}
}
return true;
}
@Override
protected void onDraw(Canvas canvas) {
super.onDraw(canvas);
if (press) {
Paint paint = new Paint();
paint.setAntiAlias(true);
paint.setColor((check) ? makePressColor() : Color
.parseColor("#446D6D6D"));
canvas.drawCircle(getWidth() / 2, getHeight() / 2, getWidth() / 2,
paint);
invalidate();
}
}
private void changeBackgroundColor(int color) {
LayerDrawable layer = (LayerDrawable) getBackground();
GradientDrawable shape = (GradientDrawable) layer
.findDrawableByLayerId(R.id.shape_bacground);
shape.setColor(color);
}
/**
* Make a dark color to press 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.argb(70, r, g, b);
}
@Override
public void setBackgroundColor(int color) {
backgroundColor = color;
if (isEnabled())
beforeBackground = backgroundColor;
changeBackgroundColor(color);
}
public void setChecked(boolean check) {
invalidate();
this.check = check;
setPressed(false);
changeBackgroundColor(getResources().getColor(
android.R.color.transparent));
if (check) {
step = 0;
}
if (check)
checkView.changeBackground();
}
public boolean isCheck() {
return check;
}
// Indicate step in check animation
int step = 0;
// View that contains checkbox
class Check extends View {
Bitmap sprite;
public Check(Context context) {
super(context);
setBackgroundResource(R.drawable.background_checkbox_uncheck);
sprite = BitmapFactory.decodeResource(context.getResources(),
R.drawable.sprite_check);
}
public void changeBackground() {
if (check) {
setBackgroundResource(R.drawable.background_checkbox_check);
LayerDrawable layer = (LayerDrawable) getBackground();
GradientDrawable shape = (GradientDrawable) layer
.findDrawableByLayerId(R.id.shape_bacground);
shape.setColor(backgroundColor);
} else {
setBackgroundResource(R.drawable.background_checkbox_uncheck);
}
}
@Override
protected void onDraw(Canvas canvas) {
super.onDraw(canvas);
if (check) {
if (step < 11){
step++;
invalidate();
}
} else {
if (step >= 0){
step--;
invalidate();
}
if (step == -1){
invalidate();
changeBackground();
}
}
Rect src = new Rect(40 * step, 0, (40 * step) + 40, 40);
Rect dst = new Rect(0, 0, this.getWidth() - 2, this.getHeight());
canvas.drawBitmap(sprite, src, dst, null);
}
}
public void setOncheckListener(OnCheckListener onCheckListener) {
this.onCheckListener = onCheckListener;
}
public interface OnCheckListener {
public void onCheck(CheckBox view, boolean check);
}
}