package de.pixart.messenger.ui.widget; import android.content.Context; import android.content.res.TypedArray; import android.graphics.Canvas; import android.graphics.Color; import android.graphics.Paint; import android.graphics.Typeface; import android.support.v4.content.ContextCompat; import android.util.AttributeSet; import android.view.View; import de.pixart.messenger.R; public class UnreadCountCustomView extends View { private int unreadCount; private Paint paint, textPaint; private int backgroundColor = 0xff0091ea; public UnreadCountCustomView(Context context) { super(context); init(); } public UnreadCountCustomView(Context context, AttributeSet attrs) { super(context, attrs); initXMLAttrs(context, attrs); init(); } public UnreadCountCustomView(Context context, AttributeSet attrs, int defStyleAttr) { super(context, attrs, defStyleAttr); initXMLAttrs(context, attrs); init(); } private void initXMLAttrs(Context context, AttributeSet attrs) { TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.UnreadCountCustomView); //setBackgroundColor(a.getColor(a.getIndex(0), ContextCompat.getColor(context, R.color.accent))); setBackgroundColor(ContextCompat.getColor(context, R.color.accent)); a.recycle(); } void init() { paint = new Paint(); paint.setColor(backgroundColor); paint.setAntiAlias(true); textPaint = new Paint(); textPaint.setColor(Color.WHITE); textPaint.setTextAlign(Paint.Align.CENTER); textPaint.setAntiAlias(true); textPaint.setTypeface(Typeface.create(Typeface.DEFAULT, Typeface.BOLD)); } @Override protected void onDraw(Canvas canvas) { super.onDraw(canvas); float midx = canvas.getWidth() / 2.0f; float midy = canvas.getHeight() / 2.0f; float radius = Math.min(canvas.getWidth(), canvas.getHeight()) / 2.0f; float textOffset = canvas.getWidth() / 6.0f; textPaint.setTextSize(0.95f * radius); canvas.drawCircle(midx, midy, radius * 0.94f, paint); canvas.drawText(unreadCount > 999 ? "\u221E" : String.valueOf(unreadCount), midx, midy + textOffset, textPaint); } public void setUnreadCount(int unreadCount) { this.unreadCount = unreadCount; invalidate(); } public void setBackgroundColor(int backgroundColor) { this.backgroundColor = backgroundColor; } }