RotateAnimation.java 文件源码

@Override
protected void applyTransformation(float interpolatedTime, Transformation t) {
    float deg = 0.0F + 360.0F * interpolatedTime;
    Matrix matrix = t.getMatrix();
    mCamera.save();
    if (mMode == Mode.X)
        mCamera.rotateX(deg);
    if (mMode == Mode.Y)
        mCamera.rotateY(deg);
    if (mMode == Mode.Z)
        mCamera.rotateZ(deg);

    mCamera.getMatrix(matrix);
    mCamera.restore();
    matrix.preTranslate(-mCenterX, -mCenterY);
    matrix.postTranslate(mCenterX, mCenterY);

}