private void initPositions() {
// we always animate to this position, might as well save it.
// TODO shouldnt be capitalized.
X_ORIGINAL_POSITION = mContext.getWallpaperDesiredMinimumWidth() / 10;
Y_ORIGINAL_POSITION = (int) mHudView.getTopOfHud() + 25;
// set width
width = mContext.getWallpaperDesiredMinimumWidth() - 50;
RECT_LENGTH = X_ORIGINAL_POSITION + width;
RECT_WIDTH = Y_ORIGINAL_POSITION + height;
locationRect = new Rect(X_ORIGINAL_POSITION, Y_ORIGINAL_POSITION, RECT_LENGTH, RECT_WIDTH);
xText = X_ORIGINAL_POSITION;
// set threshold
EVENT_BACKWARD_THRESHOLD = (int) (mContext.getWallpaperDesiredMinimumWidth() * .1); // 1/20
}
/**
* 指定されたアプリ一覧を提供する {@link AppsAdapter} を構築します。
*
* @param appContext アプリケーションコンテキスト。 コンストラクタ内でのみ使用し、参照は保持しません。
* @param apps 表示するアプリケーションのリスト。 渡されたリストは、アダプター内で保持します。以降呼び出し側で変更しないことを前提にしています。
*/
public AppsAdapter(Context appContext, List<AppInfo> apps) {
apps_ = apps;
inflater_ = (LayoutInflater) appContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
// 画面サイズを取得
final int iconSize =
getIconSize(
appContext.getWallpaperDesiredMinimumWidth(),
appContext.getWallpaperDesiredMinimumHeight());
params_ = new LinearLayout.LayoutParams(iconSize, iconSize);
}
/**
* @param nextForwardEvent - tell us if we are going forward with next event, or backwards with
* previous event.
*/
private void animateChangeInEvent(final boolean nextForwardEvent) {
// set these based on the user's gesture
float destination = 0;
float from = 0;
int duration = 500;
// get next Event and moving the view from right to left.
if (nextForwardEvent) {
destination = X_ORIGINAL_POSITION;
from = mContext.getWallpaperDesiredMinimumWidth();
}
// get previous Event and move the view from left to right.
else {
from = -500;
destination = X_ORIGINAL_POSITION;
}
isAnimating = true;
animateEventChange(from, destination, duration, nextForwardEvent);
}