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Morphing Android menu, back, dismiss and check buttons
Have full control of the animation:
compile 'com.balysv.materialmenu:material-menu:2.0.0'
See README for setting up older versions of the library.
Use it as a standalone drawable in your Toolbar:
private MaterialMenuDrawable materialMenu;
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.toolbar);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
toolbar.setNavigationOnClickListener(new View.OnClickListener() {
@Override public void onClick(View v) {
// Handle your drawable state here
materialMenu.animateState(newState);
}
});
materialMenu = new MaterialMenuDrawable(this, Color.WHITE, Stroke.THIN);
toolbar.setNavigationIcon(materialMenu);
}A plain old View that draws the icon and provides an API to manipulate its state. You can embed it
in any layout including a Toolbar.
Customisation is also available through xml attributes:
app:mm_color="color" // Color of drawable
app:mm_visible="boolean" // Visible
app:mm_transformDuration="integer" // Transformation animation duration
app:mm_scale="integer" // Scale factor of drawable
app:mm_strokeWidth="integer" // Stroke width of icons (can only be 1, 2 or 3)
app:mm_rtlEnabled="boolean" // Enabled RTL layout support (flips all drawables)
app:mm_iconState="enum" // Set the intial state of the drawable (burger, arrow, x or check)There are four icon states:
BURGER, ARROW, X, CHECKTo morph the drawable state
MaterialMenu.animateIconState(IconState state)To change the drawable state without animation
MaterialMenu.setIconState(IconState state)To animate the drawable manually (i.e. on navigation drawer slide):
MaterialMenu.setTransformationOffset(AnimationState state, float value)To hide or show the drawable:
MaterialMenu.setVisible(boolean visible)where AnimationState is one of BURGER_ARROW, BURGER_X, ARROW_X, ARROW_CHECK, BURGER_CHECK, X_CHECK
and value is between 0 and 2
Note: The icon state is resolved by current offset value. Make sure you use offset between 0 and 1 for forward animation and 1 and 2 for backwards to correctly save icon state on activity recreation.
Implement MaterialMenu into your ActionBar as described above and add a custom DrawerListener:
private DrawerLayout drawerLayout;
private boolean isDrawerOpened;
private MaterialMenuDrawable materialMenu;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
materialMenu = new MaterialMenuDrawable(this, Color.WHITE, Stroke.THIN);
toolbar.setNavigationIcon(materialMenu);
drawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
drawerLayout.setDrawerListener(new DrawerLayout.SimpleDrawerListener() {
@Override
public void onDrawerSlide(View drawerView, float slideOffset) {
materialMenu.setTransformationOffset(
MaterialMenuDrawable.AnimationState.BURGER_ARROW,
isDrawerOpened ? 2 - slideOffset : slideOffset
);
}
@Override
public void onDrawerOpened(View drawerView) {
isDrawerOpened = true;
}
@Override
public void onDrawerClosed(View drawerView) {
isDrawerOpened = false;
}
@Override
public void onDrawerStateChanged(int newState) {
if(newState == DrawerLayout.STATE_IDLE) {
if(isDrawerOpened) {
menu.setIconState(MaterialMenuDrawable.IconState.ARROW);
} else {
menu.setIconState(MaterialMenuDrawable.IconState.BURGER);
}
}
}
});
}Balys Valentukevicius
Copyright 2016 Balys Valentukevicius
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
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