Fine SeekBar control

Allow user to move their finger in the Y direction
to change the speed at which the seekbar will seek
on moving their finger across the X direction.

细腻的滑动条控制

允许用户在Y轴方向上移动手指来控制在X轴方向上
移动手指所对应的滑动条的滑动速度.
[2/3] Tranparent glowpad background

Add transparency to the glowpad view background
so the incoming caller's entire picture can be seen.

[2/3] 透明光圈背景

为来电界面光圈背景添加透明度, 从而让整个
来电用户的照片可见.

[1/3] in platform_packages_apps_InCallUI
[3/3] in platform_packages_services_Telephony