在MainActivity.java文件中,在调用其他活动时添加以下代码:
@Override
public boolean onOptionsItemSelected(MenuItem item) {
int id = item.getItemId();
if (id == R.id.action_settings) {
return true;
}
if (id == android.R.id.home) {
onBackPressed();
return true;
}
return super.onOptionsItemSelected(item);
}
在xml文件中将导航布局(nav_header.xml)添加到其他活动的布局文件中。在其他活动中,将以下代码添加到onCreate方法中:
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
ActionBar actionBar = getSupportActionBar();
actionBar.setHomeAsUpIndicator(R.drawable.ic_menu);
actionBar.setDisplayHomeAsUpEnabled(true);
NavigationView navigationView = (NavigationView) findViewById(R.id.navigation_view);
navigationView.setNavigationItemSelectedListener(new NavigationView.OnNavigationItemSelectedListener() {
@Override
public boolean onNavigationItemSelected(MenuItem menuItem) {
switch (menuItem.getItemId()) {
case R.id.nav_item_home:
Intent intent = new Intent(getApplicationContext(), MainActivity.class);
startActivity(intent);
finish();
break;
case R.id.nav_item_profile:
Intent intent_profile = new Intent(getApplicationContext(), ProfileActivity.class);
startActivity(intent_profile);
finish();
break;
case R.id.nav_item_settings:
Intent intent_settings = new Intent(getApplicationContext(), SettingsActivity.class);
startActivity(intent_settings);
finish();
}
drawerLayout.closeDrawers();
return true;
}
});
DrawerLayout drawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
ActionBarDrawerToggle actionBarDrawerToggle = new ActionBarDrawerToggle(this, drawerLayout, toolbar, R.string.openDrawer, R.string.closeDrawer) {
@Override
public void onDrawerClosed(View drawerView) {
super.onDrawerClosed(drawerView);
}
@Override
public void onDrawerOpened(View drawerView) {
super.onDrawerOpened(drawerView);
}
};
drawerLayout.setDrawerListener(actionBarDrawerToggle);
actionBarDrawerToggle.syncState();