TouchDisplayView.java 文件源码

private void initialisePaint() {

        // Calculate radiuses i n px from dp based on screen density
        float density = getResources().getDisplayMetrics().density;
        mCircleRadius = CIRCLE_RADIUS_DP * density;
        //we want to know the screen width to make the white text remain in the screen
        Configuration configuration = getContext().getResources().getConfiguration();
        mScreenWidth = configuration.smallestScreenWidthDp * (int) density ;
        //mCircleHistoricalRadius = CIRCLE_HISTORICAL_RADIUS_DP * density;

        // Setup text paint for circle label
        mTextPaint.setTextSize(30f*density);
        mStrokePaint.setTextSize(30f*density);
        mTextPaint.setColor(Color.WHITE);
        mStrokePaint.setColor(Color.WHITE);
        mTransStrokePaint.setColor(Color.WHITE);
        mTextPaint.setTypeface(Typeface.create(Typeface.DEFAULT, Typeface.BOLD));
        mStrokePaint.setStyle(Paint.Style.STROKE);
        mStrokePaint.setStrokeWidth(6f* density);
        mTransStrokePaint.setStyle(Paint.Style.STROKE);
        mTransStrokePaint.setStrokeWidth(6f* density);

    }