private void setIndicatorMargin() {
if (indicator.getVisibility() != VISIBLE) {
return;
}
final ViewGroup.MarginLayoutParams layoutParams =
(MarginLayoutParams) indicator.getLayoutParams();
final MarginLayoutParams ffabLp = (MarginLayoutParams) ffab.getLayoutParams();
layoutParams.bottomMargin = indicatorMargin + ffab.getHeight() + ffabLp.bottomMargin;
}
public IndicatableFFAB(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
final View v = View.inflate(context, R.layout.view_indicatable_ffab, this);
indicator = (ActionIndicatorView) v.findViewById(R.id.iffab_indicator);
ffab = (FlingableFAB) v.findViewById(R.id.iffab_ffab);
ViewCompat.setElevation(indicator, ffab.getCompatElevation());
final TypedArray a =
context.obtainStyledAttributes(
attrs, R.styleable.IndicatableFFAB, defStyleAttr, R.style.Widget_FFAB_IndicatableFFAB);
try {
final Drawable fabIcon = a.getDrawable(R.styleable.IndicatableFFAB_fabIcon);
ffab.setImageDrawable(fabIcon);
final int fabTint = a.getColor(R.styleable.IndicatableFFAB_fabTint, NO_ID);
if (fabTint != NO_ID) {
ViewCompat.setBackgroundTintList(ffab, ColorStateList.valueOf(fabTint));
}
final int indicatorTint = a.getColor(R.styleable.IndicatableFFAB_indicatorTint, 0);
indicator.setBackgroundColor(indicatorTint);
indicatorMargin =
a.getDimensionPixelSize(R.styleable.IndicatableFFAB_marginFabToIndicator, 0);
} finally {
a.recycle();
}
ffab.setOnTouchListener(
new OnTouchListener() {
private MotionEvent old;
@Override
public boolean onTouch(View view, MotionEvent motionEvent) {
final int action = motionEvent.getAction();
if (action == MotionEvent.ACTION_DOWN) {
old = MotionEvent.obtain(motionEvent);
onStart();
return false;
}
final Direction direction = Direction.getDirection(old, motionEvent);
if (action == MotionEvent.ACTION_MOVE) {
onMoving(direction);
} else if (action == MotionEvent.ACTION_UP) {
old.recycle();
onFling(view.getHandler());
}
return false;
}
private Direction prevSelected = Direction.UNDEFINED;
public void onStart() {
indicator.onActionLeave(prevSelected);
prevSelected = Direction.UNDEFINED;
indicator.setVisibility(View.VISIBLE);
}
public void onMoving(Direction direction) {
if (prevSelected == direction) {
return;
}
indicator.onActionLeave(prevSelected);
if (isDirectionEnabled(direction)) {
indicator.onActionSelected(direction);
}
prevSelected = direction;
}
private boolean isDirectionEnabled(Direction direction) {
for (Direction d : enableDirections) {
if (d == direction) {
return true;
}
}
return false;
}
public void onFling(Handler handler) {
handler.postDelayed(
new Runnable() {
@Override
public void run() {
indicator.setVisibility(View.INVISIBLE);
}
},
200);
}
});
if (isInEditMode()) {
indicator.setVisibility(VISIBLE);
}
}
public void setOnFlingListener(OnFlingListener flingListener) {
ffab.setOnFlingListener(flingListener);
}
public void show() {
setVisibility(VISIBLE);
ffab.show();
}
public void hide() {
ffab.hide();
setVisibility(INVISIBLE);
}
