コード例 #1
0
ファイル: Main.java プロジェクト: AoEiuV020/android-training
  /** 构造函数,主要对一些对象初始化 */
  public MySurfaceView(Context context) {
    super(context);

    mHolder = this.getHolder(); // 获得SurfaceHolder对象
    mHolder.addCallback(this); // 添加状态监听

    mPaint = new Paint(); // 创建一个画笔对象
    mPaint.setColor(Color.WHITE); // 设置画笔的颜色为白色

    qPaint = new Paint(); // 创建一个画笔对象
    qPaint.setAntiAlias(true); // 消除锯齿
    qPaint.setStyle(Paint.Style.STROKE); // 设置画笔风格为描边
    qPaint.setStrokeWidth(3); // 设置描边的宽度为3
    qPaint.setColor(Color.GREEN); // 设置画笔的颜色为绿色

    // 创建路径对象
    mPath = new Path();
    qPath = new Path();
    tPath = new Path();

    // 设置坐标为50,100
    mX = 50;
    mY = 100;

    // 设置贝塞尔曲线的开始坐标为(10,200)
    qStartX = 10;
    qStartY = 200;

    setFocusable(true); // 设置焦点
  }
コード例 #2
0
  public void draw() {
    Bitmap bitmap = Bitmap.createBitmap(200, 200, Bitmap.Config.ARGB_8888);
    Canvas canvas = new Canvas(bitmap);

    RectF rect = new RectF(8, 8, 192, 192);

    Paint p = new Paint();
    p.setAntiAlias(true);
    p.setStyle(Paint.Style.STROKE);
    p.setColor(ColS);
    p.setStrokeWidth(16);

    int S = 162;
    int H = 300;

    // S
    canvas.drawArc(rect, -90, S, false, p);

    p.setStyle(Paint.Style.FILL);
    p.setColor(ColM);

    H -= 90;
    canvas.drawCircle(100, 100, 72, p);

    p.setColor(ColH);
    p.setStrokeWidth(2);

    float sx, sy;
    sx = (float) (72 * Math.cos(Math.PI * H / 180));
    sy = (float) (72 * Math.sin(Math.PI * H / 180));

    canvas.drawLine(100, 100, sx + 100, sy + 100, p);

    ImageView clokImg;

    clokImg = (ImageView) findViewById(R.id.clokImage);
    clokImg.setImageBitmap(bitmap);

    // Hour picker
    Bitmap ColPickBmp = Bitmap.createBitmap(80, 50, Bitmap.Config.ARGB_8888);
    Canvas ColPickCanvas = new Canvas(ColPickBmp);
    ImageView colPickImg = (ImageView) findViewById(R.id.colorHou);

    rect = new RectF(0, 0, 80, 50);

    p = new Paint();
    p.setAntiAlias(true);
    p.setStyle(Paint.Style.FILL);
    p.setColor(ColH);
    ColPickCanvas.drawRect(rect, p);

    colPickImg.setImageBitmap(ColPickBmp);

    // Minute picker
    ColPickBmp = Bitmap.createBitmap(80, 50, Bitmap.Config.ARGB_8888);
    ColPickCanvas = new Canvas(ColPickBmp);
    colPickImg = (ImageView) findViewById(R.id.colorMin);

    rect = new RectF(0, 0, 80, 50);

    p = new Paint();
    p.setAntiAlias(true);
    p.setStyle(Paint.Style.FILL);
    p.setColor(ColM);
    ColPickCanvas.drawRect(rect, p);

    colPickImg.setImageBitmap(ColPickBmp);

    // Second picker
    ColPickBmp = Bitmap.createBitmap(80, 50, Bitmap.Config.ARGB_8888);
    ColPickCanvas = new Canvas(ColPickBmp);
    colPickImg = (ImageView) findViewById(R.id.colorSec);

    rect = new RectF(0, 0, 80, 50);

    p = new Paint();
    p.setAntiAlias(true);
    p.setStyle(Paint.Style.FILL);
    p.setColor(ColS);
    ColPickCanvas.drawRect(rect, p);

    colPickImg.setImageBitmap(ColPickBmp);
  }