Example
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## bind like this:
BadgeFactory.create(this).setTextColor(Color.WHITE).setWidthAndHeight(25,25).setBadgeBackground(Color.RED).setTextSize(10).setBadgeGravity(Gravity.Right|Gravity.TOP.setBadgeCount(20).setShape(BadgeView.SHAPE_CIRCLE).setSpace(10,10).bind(view);
if u want to set space dont use ~~setMargin()~~,use `setSpace` instead.
## There are some other constructer methods and you can be easy to create your own shape :
//Dot BadgeView
BadgeFactory.createDot(this).setBadgeCount(20).bind(imageView);
//circle BadgeView
BadgeFactory.createCircle(this).setBadgeCount(20).bind(imageView);
//rectangle BadgeView
BadgeFactory.createRectangle(this).setBadgeCount(20).bind(imageView);
BadgeFactory.createOval(this).setBadgeCount(20).bind(imageView);
BadgeFactory.createSquare(this).setBadgeCount(20).bind(imageView);
BadgeFactory.createRoundRect(this).setBadgeCount(20).bind(imageView);
## unbind view just use `unbind` method.
badgeView.unbind();
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Library
public static class BadgeFactory {
public static BadgeView createDot(Context context){
return new BadgeView(context).setWidthAndHeight(10,10).setTextSize(0).setBadgeGravity(Gravity.RIGHT| Gravity.TOP).setShape(BadgeView.SHAPE_CIRCLE);
}
public static BadgeView createCircle(Context context){
return new BadgeView(context).setWidthAndHeight(20,20).setTextSize(12).setBadgeGravity(Gravity.RIGHT| Gravity.TOP).setShape(BadgeView.SHAPE_CIRCLE);
}
public static BadgeView createRectangle(Context context){
return new BadgeView(context).setWidthAndHeight(25,20).setTextSize(12).setBadgeGravity(Gravity.RIGHT| Gravity.TOP).setShape(BadgeView.SHAPE_RECTANGLE);
}
public static BadgeView createOval(Context context){
return new BadgeView(context).setWidthAndHeight(25,20).setTextSize(12).setBadgeGravity(Gravity.RIGHT| Gravity.TOP).setShape(BadgeView.SHAPE_OVAL);
}
public static BadgeView createSquare(Context context){
return new BadgeView(context).setWidthAndHeight(20,20).setTextSize(12).setBadgeGravity(Gravity.RIGHT| Gravity.TOP).setShape(BadgeView.SHAPE_SQUARE);
}
public static BadgeView createRoundRect(Context context){
return new BadgeView(context).setWidthAndHeight(25,20).setTextSize(12).setBadgeGravity(Gravity.RIGHT| Gravity.TOP).setShape(BadgeView.SHAPTE_ROUND_RECTANGLE);
}
public static BadgeView create(Context context){
return new BadgeView(context);
}
}
public static class BadgeView extends View {
private Paint numberPaint;
private Paint backgroundPaint;
public static final int SHAPE_CIRCLE = 1;
public static final int SHAPE_RECTANGLE = 2;
public static final int SHAPE_OVAL = 3;
public static final int SHAPTE_ROUND_RECTANGLE = 4;
public static final int SHAPE_SQUARE = 5;
private int currentShape = SHAPE_CIRCLE;
private int defaultTextColor = Color.WHITE;
private int defaultTextSize;
private int defaultBackgroundColor = Color.RED;
private String showText = "";
private int badgeGravity = Gravity.RIGHT | Gravity.TOP;
private int leftMargin = 0;
private int topMargin = 0;
private int bottomMargin = 0;
private int rightMargin = 0;
private boolean hasBind=false;
private int horiontalSpace=0;
private int verticalSpace=0;
public BadgeView(Context context) {
super(context);
init(context);
}
public BadgeView(Context context, AttributeSet attrs) {
super(context, attrs);
init(context);
}
public BadgeView(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
init(context);
}
public BadgeView(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) {
super(context, attrs, defStyleAttr, defStyleRes);
init(context);
}
private void init(Context context) {
defaultTextSize = dip2px(context, 1);
numberPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
numberPaint.setColor(defaultTextColor);
numberPaint.setStyle(Paint.Style.FILL);
numberPaint.setTextSize(defaultTextSize);
numberPaint.setTextAlign(Paint.Align.CENTER);
backgroundPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
backgroundPaint.setColor(defaultBackgroundColor);
backgroundPaint.setStyle(Paint.Style.FILL);
FrameLayout.LayoutParams params = new FrameLayout.LayoutParams(FrameLayout.LayoutParams.WRAP_CONTENT, FrameLayout.LayoutParams.WRAP_CONTENT);
params.gravity = badgeGravity;
setLayoutParams(params);
}
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
super.onMeasure(widthMeasureSpec, heightMeasureSpec);
}
@Override
protected void onDraw(Canvas canvas) {
super.onDraw(canvas);
RectF rectF = new RectF(0, 0, getMeasuredWidth(), getMeasuredHeight());
Paint.FontMetrics fontMetrics = numberPaint.getFontMetrics();
float textH = fontMetrics.descent - fontMetrics.ascent;
switch (currentShape) {
case SHAPE_CIRCLE:
canvas.drawCircle(getMeasuredWidth() / 2f, getMeasuredHeight() / 2f, getMeasuredWidth() / 2, backgroundPaint);
canvas.drawText(showText, getMeasuredWidth() / 2f, getMeasuredHeight() / 2f + (textH / 2f - fontMetrics.descent), numberPaint);
break;
case SHAPE_OVAL:
canvas.drawOval(rectF, backgroundPaint);
canvas.drawText(showText, getMeasuredWidth() / 2f, getMeasuredHeight() / 2f + (textH / 2f - fontMetrics.descent), numberPaint);
break;
case SHAPE_RECTANGLE:
canvas.drawRect(rectF, backgroundPaint);
canvas.drawText(showText, getMeasuredWidth() / 2f, getMeasuredHeight() / 2f + (textH / 2f - fontMetrics.descent), numberPaint);
break;
case SHAPE_SQUARE:
int sideLength = Math.min(getMeasuredHeight(), getMeasuredWidth());
RectF squareF = new RectF(0, 0, sideLength, sideLength);
canvas.drawRect(squareF, backgroundPaint);
canvas.drawText(showText, sideLength / 2f, sideLength / 2f + (textH / 2f - fontMetrics.descent), numberPaint);
break;
case SHAPTE_ROUND_RECTANGLE:
canvas.drawRoundRect(rectF, dip2px(getContext(), 5), dip2px(getContext(), 5), backgroundPaint);
canvas.drawText(showText, getMeasuredWidth() / 2f, getMeasuredHeight() / 2f + (textH / 2f - fontMetrics.descent), numberPaint);
break;
}
}
private int dip2px(Context context, int dip) {
return (int) (dip * getContext().getResources().getDisplayMetrics().density + 0.5f);
}
private int sp2px(Context context, float spValue) {
final float fontScale = context.getResources().getDisplayMetrics().scaledDensity;
return (int) (spValue * fontScale + 0.5f);
}
public BadgeView setShape(int shape) {
currentShape = shape;
invalidate();
return this;
}
public BadgeView setWidthAndHeight(int w, int h) {
FrameLayout.LayoutParams params = (FrameLayout.LayoutParams) getLayoutParams();
params.width = dip2px(getContext(), w);
params.height = dip2px(getContext(), h);
setLayoutParams(params);
return this;
}
public BadgeView setWidth(int sp) {
FrameLayout.LayoutParams params = (FrameLayout.LayoutParams) getLayoutParams();
params.width = dip2px(getContext(), sp);
setLayoutParams(params);
return this;
}
public BadgeView setHeight(int sp) {
FrameLayout.LayoutParams params = (FrameLayout.LayoutParams) getLayoutParams();
params.height = dip2px(getContext(), sp);
setLayoutParams(params);
return this;
}
@Deprecated
public BadgeView setMargin(int left, int top, int right, int bottom) {
leftMargin = dip2px(getContext(), left);
bottomMargin = dip2px(getContext(), bottom);
topMargin = dip2px(getContext(), top);
rightMargin = dip2px(getContext(), right);
invalidate();
return this;
}
public BadgeView setSpace(int horitontal, int vertical){
horiontalSpace=dip2px(getContext(), horitontal);
verticalSpace=dip2px(getContext(), vertical);
invalidate();
return this;
}
public BadgeView setTextSize(int sp) {
defaultTextSize = sp2px(getContext(), sp);
numberPaint.setTextSize(sp2px(getContext(), sp));
invalidate();
return this;
}
public BadgeView setTextColor(int color) {
defaultTextColor = color;
numberPaint.setColor(color);
invalidate();
return this;
}
public BadgeView setBadgeBackground(int color) {
defaultBackgroundColor = color;
backgroundPaint.setColor(color);
invalidate();
return this;
}
public BadgeView setBadgeCount(int count) {
showText = String.valueOf(count);
invalidate();
return this;
}
public BadgeView setBadgeCount(String count) {
showText = count;
invalidate();
return this;
}
public BadgeView setBadgeGravity(int gravity) {
badgeGravity = gravity;
FrameLayout.LayoutParams params = (FrameLayout.LayoutParams) getLayoutParams();
params.gravity = gravity;
setLayoutParams(params);
return this;
}
public BadgeView bind(View view) {
if (getParent() != null)
((ViewGroup) getParent()).removeView(this);
if (view == null)
return this;
if ((view.getParent() instanceof FrameLayout)&&hasBind==true) {
((FrameLayout) view.getParent()).addView(this);
return this;
} else if (view.getParent() instanceof ViewGroup) {
ViewGroup parentContainer = (ViewGroup) view.getParent();
int viewIndex = ((ViewGroup) view.getParent()).indexOfChild(view);
((ViewGroup) view.getParent()).removeView(view);
FrameLayout container = new FrameLayout(getContext());
ViewGroup.LayoutParams containerParams = view.getLayoutParams();
int origionHeight=containerParams.height;
int origionWidth=containerParams.width;
FrameLayout.LayoutParams viewLayoutParams =new FrameLayout.LayoutParams( origionWidth, origionHeight);
if(origionHeight==ViewGroup.LayoutParams.WRAP_CONTENT){
containerParams.height = ViewGroup.LayoutParams.WRAP_CONTENT;
viewLayoutParams.topMargin=topMargin;
viewLayoutParams.bottomMargin=bottomMargin;
}else{
containerParams.height =origionHeight+topMargin+bottomMargin+verticalSpace;
}
if(origionWidth==ViewGroup.LayoutParams.WRAP_CONTENT){
containerParams.width = ViewGroup.LayoutParams.WRAP_CONTENT;
viewLayoutParams.leftMargin=leftMargin;
viewLayoutParams.rightMargin=rightMargin;
}else{
containerParams.width=origionWidth+rightMargin+horiontalSpace+leftMargin;
}
container.setLayoutParams(containerParams);
FrameLayout.LayoutParams params = (FrameLayout.LayoutParams) getLayoutParams();
if(params.gravity==(Gravity.RIGHT|Gravity.TOP)||params.gravity==Gravity.RIGHT||params.gravity==Gravity.TOP){
view.setPadding(0,verticalSpace,horiontalSpace,0);
viewLayoutParams.gravity=Gravity.LEFT|Gravity.BOTTOM;
}else if(params.gravity==(Gravity.LEFT|Gravity.TOP)||params.gravity==Gravity.LEFT||params.gravity==Gravity.TOP){
view.setPadding(horiontalSpace,verticalSpace,0,0);
viewLayoutParams.gravity=Gravity.RIGHT|Gravity.BOTTOM;
}else if(params.gravity==(Gravity.LEFT|Gravity.BOTTOM)){
view.setPadding(horiontalSpace,0,0,verticalSpace);
viewLayoutParams.gravity=Gravity.RIGHT|Gravity.TOP;
}else if(params.gravity==(Gravity.RIGHT|Gravity.BOTTOM)){
view.setPadding(0,0,horiontalSpace,verticalSpace);
viewLayoutParams.gravity=Gravity.LEFT|Gravity.TOP;
}else{
view.setPadding(0,verticalSpace,horiontalSpace,0);
viewLayoutParams.gravity=Gravity.LEFT|Gravity.BOTTOM;
}
view.setLayoutParams(viewLayoutParams);
container.setId(view.getId());
container.addView(view);
container.addView(this);
parentContainer.addView(container, viewIndex);
hasBind=true;
} else if (view.getParent() == null) {
Log.e("badgeview", "View must have a parent");
}
return this;
}
public boolean unbind() {
if (getParent() != null) {
((ViewGroup) getParent()).removeView(this);
return true;
}
return false;
}
public String getBadgeCount() {
return showText;
}
}
Hello, my name is Mohammed Ashad. I'm a 18 year old 1st year Polytechnic student in Malappuram, Kerala. 
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