setDefaultAppBarLayoutStateListAnimator(appBarLayout, 0); @SuppressLint("PrivateResource") private static void setDefaultAppBarLayoutStateListAnimator(final View view, final float targetElevation) { final StateListAnimator sla = new StateListAnimator(); // Enabled, collapsible and collapsed == elevated sla.addState(new int[]{android.R.attr.enabled, android.support.design.R.attr.state_collapsible, android.support.design.R.attr.state_collapsed}, ObjectAnimator.ofFloat(view, "elevation", targetElevation)); // Enabled and collapsible, but not collapsed != elevated sla.addState(new int[]{android.R.attr.enabled, android.support.design.R.attr.state_collapsible, -android.support.design.R.attr.state_collapsed}, ObjectAnimator.ofFloat(view, "elevation", 0f)); // Enabled but not collapsible == elevated sla.addState(new int[]{android.R.attr.enabled, -android.support.design.R.attr.state_collapsible}, ObjectAnimator.ofFloat(view, "elevation", targetElevation)); // Default, none elevated state sla.addState(new int[0], ObjectAnimator.ofFloat(view, "elevation", 0)); view.setStateListAnimator(sla); }
StateListAnimator stateListAnimator = new StateListAnimator(); stateListAnimator.addState(new int[0], ObjectAnimator.ofFloat(view, "elevation", 0)); appBarLayout.setStateListAnimator(stateListAnimator);
/** * Creates and sets a {@link StateListAnimator} with a custom elevation value */ @SuppressLint("PrivateResource") static void setDefaultAppBarLayoutStateListAnimator(final View view, final float targetElevation) { final StateListAnimator sla = new StateListAnimator(); // Enabled, collapsible and collapsed == elevated sla.addState(new int[]{android.R.attr.enabled, R.attr.state_collapsible, R.attr.state_collapsed}, ObjectAnimator.ofFloat(view, "elevation", targetElevation)); // Enabled and collapsible, but not collapsed != elevated sla.addState(new int[]{android.R.attr.enabled, R.attr.state_collapsible, -R.attr.state_collapsed}, ObjectAnimator.ofFloat(view, "elevation", 0f)); // Enabled but not collapsible == elevated sla.addState(new int[]{android.R.attr.enabled, -R.attr.state_collapsible}, ObjectAnimator.ofFloat(view, "elevation", targetElevation)); // Default, none elevated state sla.addState(new int[0], ObjectAnimator.ofFloat(view, "elevation", 0)); view.setStateListAnimator(sla); }
StateListAnimator stateListAnimator = new StateListAnimator(); stateListAnimator.addState(new int[0], ObjectAnimator.ofFloat(view, "elevation", 0)); appBarLayout.setStateListAnimator(stateListAnimator);
.setDuration(PRESSED_ANIM_DURATION)); set.setInterpolator(ANIM_INTERPOLATOR); stateListAnimator.addState(PRESSED_ENABLED_STATE_SET, set); .setDuration(PRESSED_ANIM_DURATION)); set.setInterpolator(ANIM_INTERPOLATOR); stateListAnimator.addState(FOCUSED_ENABLED_STATE_SET, set); .with(anim); set.setInterpolator(ANIM_INTERPOLATOR); stateListAnimator.addState(ENABLED_STATE_SET, set); .with(ObjectAnimator.ofFloat(this, View.TRANSLATION_Z, 0f).setDuration(0)); set.setInterpolator(ANIM_INTERPOLATOR); stateListAnimator.addState(EMPTY_STATE_SET, set);
.setDuration(PRESSED_ANIM_DURATION)); set.setInterpolator(ANIM_INTERPOLATOR); stateListAnimator.addState(PRESSED_ENABLED_STATE_SET, set); .setDuration(PRESSED_ANIM_DURATION)); set.setInterpolator(ANIM_INTERPOLATOR); stateListAnimator.addState(FOCUSED_ENABLED_STATE_SET, set); .with(anim); set.setInterpolator(ANIM_INTERPOLATOR); stateListAnimator.addState(ENABLED_STATE_SET, set); .with(ObjectAnimator.ofFloat(this, View.TRANSLATION_Z, 0f).setDuration(0)); set.setInterpolator(ANIM_INTERPOLATOR); stateListAnimator.addState(EMPTY_STATE_SET, set);