package com.aero.control.helpers.Android.Material;
import android.app.Dialog;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.PorterDuff;
import android.graphics.PorterDuffXfermode;
import android.graphics.drawable.GradientDrawable;
import android.graphics.drawable.LayerDrawable;
import android.os.Bundle;
import android.util.AttributeSet;
import android.view.Gravity;
import android.view.MotionEvent;
import android.view.View;
import android.view.Window;
import android.widget.RelativeLayout;
import android.widget.TextView;
import com.aero.control.R;
import com.nineoldandroids.view.ViewHelper;
/**
* Created by Alexander Christ on 29.12.14.
*/
public class Slider extends CustomView {
// Event when slider change value
public interface OnValueChangedListener {
public void onValueChanged(int value);
}
private Ball ball;
public NumberIndicator numberIndicator;
private Paint mPaint;
private Paint mTransPaint;
private Paint mEmptyPaint;
private PorterDuffXfermode mPorterDuffXfermode;
private Bitmap mBitmap;
private Canvas mTemp;
private boolean showNumberIndicator = false;
private boolean press = false;
private int value = 0;
private int max = 100;
private int min = 0;
private OnValueChangedListener onValueChangedListener;
public Slider(Context context, AttributeSet attrs) {
super(context, attrs);
if (mPaint == null)
mPaint = new Paint();
if (mTransPaint == null)
mTransPaint = new Paint();
if (mEmptyPaint == null)
mEmptyPaint = new Paint();
if (mPorterDuffXfermode == null)
mPorterDuffXfermode = new PorterDuffXfermode(PorterDuff.Mode.CLEAR);
setAttributes(attrs);
}
@Override
protected void onInitDefaultValues() {
minWidth = 80;// size of view
minHeight = 48;
backgroundColor = Color.parseColor("#4CAF50");
backgroundResId = R.drawable.background_transparent;
}
@Override
protected void setAttributes(AttributeSet attrs) {
super.setAttributes(attrs);
if (!isInEditMode()) {
getBackground().setAlpha(0);
}
showNumberIndicator = attrs.getAttributeBooleanValue(MATERIALDESIGNXML,"showNumberIndicator", false);
min = attrs.getAttributeIntValue(MATERIALDESIGNXML, "min", 0);
max = attrs.getAttributeIntValue(MATERIALDESIGNXML, "max", 100);// max > min
value = attrs.getAttributeIntValue(MATERIALDESIGNXML, "value", min);
float size = 20;
String thumbSize = attrs.getAttributeValue(MATERIALDESIGNXML, "thumbSize");
if (thumbSize != null) {
size = dipOrDpToFloat(thumbSize);
}
ball = new Ball(getContext());
setBallParams(size);
addView(ball);
// Set if slider content number indicator
if (showNumberIndicator) {
if (!isInEditMode()) {
numberIndicator = new NumberIndicator(getContext());
}
}
}
private void setBallParams(float size) {
RelativeLayout.LayoutParams params = new LayoutParams(
dpToPx(size, getResources()), dpToPx(size, getResources()));
params.addRule(RelativeLayout.CENTER_VERTICAL, RelativeLayout.TRUE);
ball.setLayoutParams(params);
}
@Override
protected void onDraw(Canvas canvas) {
super.onDraw(canvas);
if (!placedBall) {
placeBall();
}
if (value == min) {
// Crop line to transparent effect
if (mBitmap == null)
mBitmap = Bitmap.createBitmap(canvas.getWidth(), canvas.getHeight(), Bitmap.Config.ARGB_8888);
if (mTemp == null)
mTemp = new Canvas(mBitmap);
mPaint.setColor(Color.parseColor("#B0B0B0"));
mPaint.setStrokeWidth(dpToPx(2, getResources()));
mTemp.drawLine(getHeight() / 2, getHeight() / 2, getWidth() - getHeight() / 2, getHeight() / 2, mPaint);
mTransPaint.setColor(getResources().getColor(android.R.color.transparent));
mTransPaint.setXfermode(mPorterDuffXfermode);
mTemp.drawCircle(ViewHelper.getX(ball) + ball.getWidth() / 2,
ViewHelper.getY(ball) + ball.getHeight() / 2,
ball.getWidth() / 2, mTransPaint);
canvas.drawBitmap(mBitmap, 0, 0, mEmptyPaint);
} else {
mPaint.setColor(Color.parseColor("#B0B0B0"));
mPaint.setStrokeWidth(dpToPx(2, getResources()));
canvas.drawLine(getHeight() / 2, getHeight() / 2, getWidth() - getHeight() / 2, getHeight() / 2, mPaint);
mPaint.setColor(backgroundColor);
float division = (ball.xFin - ball.xIni) / (max - min);
int value = this.value - min;
canvas.drawLine(getHeight() / 2, getHeight() / 2, value * division + getHeight() / 2, getHeight() / 2, mPaint);
// init ball's X
ViewHelper.setX(ball, value * division + getHeight() / 2 - ball.getWidth() / 2);
ball.changeBackground();
}
if (press && !showNumberIndicator) {
mPaint.setColor(backgroundColor);
mPaint.setAntiAlias(true);
canvas.drawCircle(ViewHelper.getX(ball) + ball.getWidth() / 2, getHeight() / 2, getHeight() / 3, mPaint);
}
invalidate();
}
@Override
public boolean onTouchEvent(MotionEvent event) {
isLastTouch = true;
if (isEnabled()) {
if (event.getAction() == MotionEvent.ACTION_DOWN || event.getAction() == MotionEvent.ACTION_MOVE) {
if (numberIndicator != null && !numberIndicator.isShowing())
numberIndicator.show();
if ((event.getX() <= getWidth() && event.getX() >= 0)) {
press = true;
// calculate value
int newValue = 0;
float division = (ball.xFin - ball.xIni) / (max - min);
if (event.getX() > ball.xFin) {
newValue = max;
} else if (event.getX() < ball.xIni) {
newValue = min;
} else {
newValue = min + (int) ((event.getX() - ball.xIni) / division);
}
if (value != newValue) {
value = newValue;
if (onValueChangedListener != null)
onValueChangedListener.onValueChanged(newValue);
}
// move ball indicator
float x = event.getX();
x = (x < ball.xIni) ? ball.xIni : x;
x = (x > ball.xFin) ? ball.xFin : x;
ViewHelper.setX(ball, x);
ball.changeBackground();
// If slider has number indicator
if (numberIndicator != null) {
// move number indicator
numberIndicator.indicator.x = x;
numberIndicator.indicator.finalY = getRelativeTop(this) - getHeight();
numberIndicator.indicator.finalSize = getHeight() / 2;
numberIndicator.numberIndicator.setText("");
}
} else {
press = false;
isLastTouch = false;
if (numberIndicator != null)
numberIndicator.dismiss();
}
} else if (event.getAction() == MotionEvent.ACTION_UP) {
if (numberIndicator != null)
numberIndicator.dismiss();
isLastTouch = false;
press = false;
}
}
return true;
}
private void placeBall() {
ViewHelper.setX(ball, getHeight() / 2 - ball.getWidth() / 2);
ball.xIni = ViewHelper.getX(ball);
ball.xFin = getWidth() - getHeight() / 2 - ball.getWidth() / 2;
ball.xCen = getWidth() / 2 - ball.getWidth() / 2;
placedBall = true;
}
public OnValueChangedListener getOnValueChangedListener() {
return onValueChangedListener;
}
public void setOnValueChangedListener(
OnValueChangedListener onValueChangedListener) {
this.onValueChangedListener = onValueChangedListener;
}
public void setThumbSize(float size) {
setBallParams(size);
}
public int getValue() {
return value;
}
public void setProgress(int value) {
setProgress(value, false);
}
public void setProgress(int value,boolean inRunnable) {
if (value <= min) {
value = min;
}
if (value >= max) {
value = max;
}
setValueInRunnable(value,inRunnable);
}
private void setValueInRunnable(final int value,final boolean inRunnable) {
if(!placedBall && inRunnable)
post(new Runnable() {
@Override
public void run() {
setProgress(value, inRunnable);
}
});
else{
this.value = value;
float division = (ball.xFin - ball.xIni) / max;
ViewHelper.setX(ball,value*division + getHeight()/2 - ball.getWidth()/2);
ball.changeBackground();
}
}
public int getMax() {
return max;
}
public void setMax(int max) {
this.max = max;
}
public int getMin() {
return min;
}
public void setMin(int min) {
this.min = min;
}
public boolean isShowNumberIndicator() {
return showNumberIndicator;
}
public void showNumberIndicator(boolean showNumberIndicator) {
this.showNumberIndicator = showNumberIndicator;
if (!isInEditMode()) {
numberIndicator = (showNumberIndicator) ? new NumberIndicator(getContext()) : null;
}
}
@Override
public void setBackgroundColor(int color) {
backgroundColor = color;
if (isEnabled()) {
beforeBackground = backgroundColor;
}
}
private boolean placedBall = false;
private class Ball extends View {
private float xIni, xFin, xCen;
public Ball(Context context) {
super(context);
if (!isInEditMode()) {
setBackgroundResource(R.drawable.background_switch_ball_uncheck);
} else {
setBackgroundResource(android.R.drawable.radiobutton_off_background);
}
}
public void changeBackground() {
if (!isInEditMode()) {
if (value != min) {
setBackgroundResource(R.drawable.background_checkbox);
LayerDrawable layer = (LayerDrawable) getBackground();
GradientDrawable shape = (GradientDrawable) layer
.findDrawableByLayerId(R.id.shape_background);
shape.setColor(backgroundColor);
} else {
setBackgroundResource(R.drawable.background_switch_ball_uncheck);
}
}
}
}
// Slider Number Indicator
public class NumberIndicator extends Dialog {
private Indicator indicator;
private TextView numberIndicator;
public NumberIndicator(Context context) {
super(context, R.style.Translucent);
}
@Override
protected void onCreate(Bundle savedInstanceState) {
requestWindowFeature(Window.FEATURE_NO_TITLE);
super.onCreate(savedInstanceState);
setContentView(R.layout.number_indicator_spinner);
setCanceledOnTouchOutside(false);
RelativeLayout content = (RelativeLayout) this.findViewById(R.id.number_indicator_spinner_content);
indicator = new Indicator(this.getContext());
content.addView(indicator);
numberIndicator = new TextView(getContext());
numberIndicator.setTextColor(Color.WHITE);
numberIndicator.setGravity(Gravity.CENTER);
content.addView(numberIndicator);
indicator.setLayoutParams(new RelativeLayout.LayoutParams(
RelativeLayout.LayoutParams.MATCH_PARENT,
RelativeLayout.LayoutParams.MATCH_PARENT));
}
@Override
public void dismiss() {
super.dismiss();
indicator.y = 0;
indicator.size = 0;
indicator.animate = true;
}
@Override
public void onBackPressed() {
}
}
private class Indicator extends RelativeLayout {
// Position of number indicator
private float x = 0;
private float y = 0;
// Size of number indicator
private float size = 0;
private Paint mPaint;
// Final y position after animation
private float finalY = 0;
// Final size after animation
private float finalSize = 0;
private boolean animate = true;
private boolean numberIndicatorResize = false;
public Indicator(Context context) {
super(context);
if (mPaint == null)
mPaint = new Paint();
setBackgroundColor(getResources().getColor(android.R.color.transparent));
}
@Override
protected void onDraw(Canvas canvas) {
super.onDraw(canvas);
if (!numberIndicatorResize) {
RelativeLayout.LayoutParams params = (LayoutParams) numberIndicator.
numberIndicator.getLayoutParams();
params.height = (int) finalSize * 2;
params.width = (int) finalSize * 2;
numberIndicator.numberIndicator.setLayoutParams(params);
}
mPaint.setAntiAlias(true);
mPaint.setColor(backgroundColor);
if (animate) {
if (y == 0)
y = finalY + finalSize * 2;
y -= dpToPx(-13, getResources());
size += dpToPx(2, getResources());
}
canvas.drawCircle(
ViewHelper.getX(ball) + getRelativeLeft((View) ball.getParent())
+ ball.getWidth() / 2, y, size, mPaint);
if (animate && size >= finalSize)
animate = false;
if (!animate) {
ViewHelper.setX(numberIndicator.numberIndicator,
(ViewHelper.getX(ball) + getRelativeLeft((View) ball.getParent()) + ball.getWidth() / 2) - size);
ViewHelper.setY(numberIndicator.numberIndicator, y - size);
numberIndicator.numberIndicator.setText(value + "");
}
invalidate();
}
}
}