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add text, textSize, textColor attr support and subclass from ImageButton #7

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add text, textSize, textColor attr support and subclass from ImageButton #7

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71 changes: 62 additions & 9 deletions library/src/main/java/at/markushi/ui/CircleButton.java
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Original file line number Diff line number Diff line change
Expand Up @@ -12,7 +12,7 @@

import at.markushi.circlebutton.R;

public class CircleButton extends ImageView {
public class CircleButton extends ImageButton {

private static final int PRESSED_COLOR_LIGHTUP = 255 / 25;
private static final int PRESSED_RING_ALPHA = 75;
Expand All @@ -34,6 +34,9 @@ public class CircleButton extends ImageView {
private int pressedColor;
private ObjectAnimator pressedAnimator;

private String text;
private Paint textPaint;

public CircleButton(Context context) {
super(context);
init(context, null);
Expand Down Expand Up @@ -68,6 +71,10 @@ public void setPressed(boolean pressed) {
protected void onDraw(Canvas canvas) {
canvas.drawCircle(centerX, centerY, pressedRingRadius + animationProgress, focusPaint);
canvas.drawCircle(centerX, centerY, outerRadius - pressedRingWidth, circlePaint);
if (textPaint != null) {
final float baselineOffset = (textPaint.descent() + textPaint.ascent()) / 2;
canvas.drawText(text, centerX, centerY - baselineOffset, textPaint);
}
super.onDraw(canvas);
}

Expand Down Expand Up @@ -125,14 +132,23 @@ private void init(Context context, AttributeSet attrs) {
.getDisplayMetrics());

int color = Color.BLACK;
if (attrs != null) {
final TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.CircleButton);
color = a.getColor(R.styleable.CircleButton_cb_color, color);
pressedRingWidth = (int) a.getDimension(R.styleable.CircleButton_cb_pressedRingWidth, pressedRingWidth);
a.recycle();
}

setColor(color);
float textSize = 22.0f;
int textColor = Color.WHITE;
if (attrs != null) {
final TypedArray a = context.obtainStyledAttributes(attrs, ATTRS);
color = a.getColor(attrValueIndex(R.attr.cb_color), color);
pressedRingWidth = (int) a.getDimension(attrValueIndex(R.attr.cb_pressedRingWidth), pressedRingWidth);
this.text = a.getString(attrValueIndex(android.R.attr.text));
textSize = a.getDimension(attrValueIndex(android.R.attr.textSize), textSize);
textColor = a.getColor(attrValueIndex(android.R.attr.textColor), textColor);
a.recycle();
}

setColor(color);

if (this.text != null) {
setText(text, textSize, textColor);
}

focusPaint.setStrokeWidth(pressedRingWidth);
final int pressedAnimationTime = getResources().getInteger(ANIMATION_TIME_ID);
Expand All @@ -144,4 +160,41 @@ private int getHighlightColor(int color, int amount) {
return Color.argb(Math.min(255, Color.alpha(color)), Math.min(255, Color.red(color) + amount),
Math.min(255, Color.green(color) + amount), Math.min(255, Color.blue(color) + amount));
}

private static final int[] ATTRS = new int[]{
android.R.attr.text,
android.R.attr.textColor,
android.R.attr.textSize,
R.attr.cb_color,
R.attr.cb_pressedRingWidth
};

static {
Arrays.sort(ATTRS);
}

private static int attrValueIndex(int attrIndex) {
for (int i = 0; i < ATTRS.length; i++) {
if (ATTRS[i] == attrIndex) {
return i;
}
}
return -1;
}

public String getText() {
return this.text;
}

public void setText(String text, float textSize, int textColor) {
this.textPaint = new Paint();
textPaint.setColor(textColor);
textPaint.setTextSize(textSize);
textPaint.setAntiAlias(true);
textPaint.setFakeBoldText(true);
textPaint.setStyle(Paint.Style.FILL);
textPaint.setTextAlign(Paint.Align.CENTER);

this.invalidate();
}
}