我有一个问题,我需要能够从我的操作栏中单击徽标和后退箭头+汉堡包/餐饮。当我的 backstack 中没有任何东西时,会显示汉堡图标并打开我的左抽屉(然后通过动画它变为箭头以关闭抽屉)。
在 AppLogo 旁边显示图标:
getSupportActionBar().setHomeButtonEnabled(true);
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
我必须ActionBarDrawerToggle
检查它是否打开了左抽屉(因为我也有右抽屉,不能干扰汉堡图标动画)。
ActionBarDrawer 切换
mDrawerListener = new ActionBarDrawerToggle(this, drawerLayout, R.string.drawer_open, R.string.drawer_closed) {
//must override these methods to make only left drawer change the icon of drawer in the corner, when opened
@Override
public void onDrawerSlide(View drawerView, float slideOffset) {
if (drawerView.getId() == R.id.left_drawer) {
super.onDrawerSlide(drawerView, slideOffset);
}
}
@Override
public void onDrawerOpened(View drawerView) {
if (drawerView.getId() == R.id.left_drawer) {
super.onDrawerOpened(drawerView);
}
}
@Override
public void onDrawerClosed(View drawerView) {
if (drawerView.getId() == R.id.left_drawer) {
super.onDrawerClosed(drawerView);
}
}
};
drawerLayout.setDrawerListener(mDrawerListener);
当可以导航时,图标会通过禁用指示器变为箭头
onBackStackChanged()
@Override
public void onBackStackChanged() {
// disable drawer icon and leave backarrow icon if backstack not empty
boolean canBack = getSupportFragmentManager().getBackStackEntryCount() > 0;
if (canBack) {
mDrawerListener.setDrawerIndicatorEnabled(false);
} else {
mDrawerListener.setDrawerIndicatorEnabled(true);
}
}
在OnOptionsItemSelected()
我照顾左抽屉(右一个关闭)或navigateBack动作。
OnOptionsItemSelected()
public boolean onOptionsItemSelected(MenuItem item) {
Helper.dismissKeyboard(this);
switch (item.getItemId()) {
case android.R.id.home:
if (getSupportFragmentManager().getBackStackEntryCount() > 0) {
onSupportNavigateUp();
} else {
if (drawerLayout.isDrawerOpen(drawerSports)) {
drawerLayout.closeDrawer(drawerSports);
} else {
if (drawerLayout.isDrawerOpen(lvMyAccount)) {
drawerLayout.closeDrawer(lvMyAccount);
}
drawerLayout.openDrawer(drawerSports);
}
}
return true;
样式.xml
<style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
<item name="android:actionBarStyle">@style/MyActionBar</item>
<item name="actionBarStyle">@style/MyActionBar</item>
</style>
<style name="MyActionBar" >
<item name="android:background">@color/blue</item>
<item name="background">@color/blue</item>
<item name="android:logo">@drawable/logo_marathon</item>
<item name="logo">@drawable/logo_marathon</item>
<item name="android:displayOptions">showHome|useLogo</item>
<item name="displayOptions">showHome|useLogo</item>
</style>
...
这不是我的项目,所以我可能不知道一切是如何配置的,除非必要,否则我无法对其进行任何重大更改,因此我需要将 onClick 方法添加到徽标中,我不知道如何。我试过 <item name="onClick">customLogoClickMethod</item>
了,但没有帮助。