initial

app/src/main/java/net/heartshield/ui/CircleView.java

@@ -0,0 +1,76 @@
+package net.heartshield.ui;
+
+import android.content.Context;
+import android.graphics.Canvas;
+import android.graphics.Paint;
+import android.support.annotation.Nullable;
+import android.support.v4.content.ContextCompat;
+import android.util.AttributeSet;
+import android.view.View;
+
+import net.heartshield.prevent.R;
+
+/**
+ * @author David Madl (git@abanbytes.eu)
+ * @date 2017-10-29
+ */
+public class CircleView extends View {
+    private double mViewDiameter = 1.0;
+    private double mMeasureSize;
+    private int mWidth;
+    private int mHeight;
+    private Paint mPaint;
+
+    public CircleView(Context context, @Nullable AttributeSet attrs) {
+        super(context, attrs);
+        init(context);
+    }
+
+    private void init(Context context) {
+        mPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
+        mPaint.setColor(ContextCompat.getColor(context, R.color.square_image_background_highlight));
+    }
+
+    @Override
+    protected void onDraw(Canvas canvas) {
+        super.onDraw(canvas);
+        //canvas.drawCircle(x, y, radius, paint);
+        canvas.drawCircle(mWidth / 2, mHeight / 2, (float) (mMeasureSize / 2.0 * (0.2 + mViewDiameter * 0.60)), mPaint);
+    }
+
+    public void setDiameter(double diameter) {
+        mViewDiameter = diameter;
+        mViewDiameter = Math.min(Math.max(mViewDiameter, 0.0), 1.0);
+        invalidate();
+    }
+
+    @Override
+    public void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
+        /*
+        if(false) {
+            super.onMeasure(widthMeasureSpec, heightMeasureSpec);
+            return;
+        }
+        */
+
+        //final int widthSpecMode = MeasureSpec.getMode(widthMeasureSpec);
+        final int widthSpecSize = MeasureSpec.getSize(widthMeasureSpec);
+        //final int heightSpecMode = MeasureSpec.getMode(heightMeasureSpec);
+        final int heightSpecSize = MeasureSpec.getSize(heightMeasureSpec);
+
+        super.onMeasure(widthMeasureSpec, heightMeasureSpec);
+        mMeasureSize = Math.min(widthSpecSize, heightSpecSize);
+        mWidth = widthSpecSize;
+        mHeight = heightSpecSize;
+
+        /*
+        if(widthSpecSize < heightSpecSize) {
+            super.onMeasure(widthMeasureSpec, widthMeasureSpec);
+            mMeasureSize = widthSpecSize;
+        } else {
+            super.onMeasure(heightMeasureSpec, heightMeasureSpec);
+            mMeasureSize = heightSpecSize;
+        }
+        */
+    }
+}