introduced sroll to bottom button

1 files changed, 77 insertions, 0 deletions

diff --git a/src/main/java/de/pixart/messenger/ui/widget/UnreadCountCustomView.java b/src/main/java/de/pixart/messenger/ui/widget/UnreadCountCustomView.java
new file mode 100644
index 000000000..6b4a6de0f
--- /dev/null
+++ b/src/main/java/de/pixart/messenger/ui/widget/UnreadCountCustomView.java
@@ -0,0 +1,77 @@
+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 = 0xff326130;
+
+    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;
+    }
+}