我做了一个导航抽屉，就像developer.android.com网站上的教程中显示的那样。但是现在，我想使用一个导航抽屉，我在NavigationDrawer.class中创建了多个活动在我的应用程序。
我的问题是，这里是否有人可以做一个小教程，它解释了如何使用一个导航抽屉的多个活动。
我第一次读到这个答案
Android导航抽屉在多个活动
但在我的项目上行不通
public class NavigationDrawer extends Activity {
public DrawerLayout drawerLayout;
public ListView drawerList;
private ActionBarDrawerToggle drawerToggle;
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
drawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
drawerToggle = new ActionBarDrawerToggle((Activity) this, drawerLayout, R.drawable.ic_drawer, 0, 0) {
public void onDrawerClosed(View view) {
getActionBar().setTitle(R.string.app_name);
}
public void onDrawerOpened(View drawerView) {
getActionBar().setTitle(R.string.menu);
}
};
drawerLayout.setDrawerListener(drawerToggle);
getActionBar().setDisplayHomeAsUpEnabled(true);
getActionBar().setHomeButtonEnabled(true);
listItems = getResources().getStringArray(R.array.layers_array);
drawerList = (ListView) findViewById(R.id.left_drawer);
drawerList.setAdapter(new ArrayAdapter<String>(this, R.layout.drawer_list_item, android.R.id.text,
listItems));
drawerList.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> arg0, View arg1, int pos, long arg3) {
drawerClickEvent(pos);
}
});
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
if (drawerToggle.onOptionsItemSelected(item)) {
return true;
}
return super.onOptionsItemSelected(item);
}
@Override
protected void onPostCreate(Bundle savedInstanceState) {
super.onPostCreate(savedInstanceState);
drawerToggle.syncState();
}
@Override
public void onConfigurationChanged(Configuration newConfig) {
super.onConfigurationChanged(newConfig);
drawerToggle.onConfigurationChanged(newConfig);
}
}
在这个活动中，我想有导航抽屉，所以我扩展了'NavigationDrawer'，在其他一些活动中，我想使用相同的导航抽屉
public class SampleActivity extends NavigationDrawer {...}
package xxxxxx;
import android.app.SearchManager;
import android.content.Context;
import android.content.Intent;
import android.widget.SearchView;
import android.support.design.widget.NavigationView;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.ActionBarDrawerToggle;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.support.v7.widget.Toolbar;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.Toast;
public class loginhome extends AppCompatActivity {
private Toolbar toolbar;
private NavigationView navigationView;
private DrawerLayout drawerLayout;
// Make sure to be using android.support.v7.app.ActionBarDrawerToggle version.
// The android.support.v4.app.ActionBarDrawerToggle has been deprecated.
private ActionBarDrawerToggle drawerToggle;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.loginhome);
// Initializing Toolbar and setting it as the actionbar
toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
//Initializing NavigationView
navigationView = (NavigationView) findViewById(R.id.nav_view);
//Setting Navigation View Item Selected Listener to handle the item click of the navigation menu
navigationView.setNavigationItemSelectedListener(new NavigationView.OnNavigationItemSelectedListener() {
// This method will trigger on item Click of navigation menu
public boolean onNavigationItemSelected(MenuItem menuItem) {
//Checking if the item is in checked state or not, if not make it in checked state
if(menuItem.isChecked()) menuItem.setChecked(false);
else menuItem.setChecked(true);
//Closing drawer on item click
drawerLayout.closeDrawers();
//Check to see which item was being clicked and perform appropriate action
switch (menuItem.getItemId()){
//Replacing the main content with ContentFragment Which is our Inbox View;
case R.id.nav_first_fragment:
Toast.makeText(getApplicationContext(),"First fragment",Toast.LENGTH_SHORT).show();
FirstFragment fragment = new FirstFragment();
android.support.v4.app.FragmentTransaction fragmentTransaction = getSupportFragmentManager().beginTransaction();
fragmentTransaction.replace(R.id.frame,fragment);
fragmentTransaction.commit();
return true;
// For rest of the options we just show a toast on click
case R.id.nav_second_fragment:
Toast.makeText(getApplicationContext(),"Second fragment",Toast.LENGTH_SHORT).show();
SecondFragment fragment2 = new SecondFragment();
android.support.v4.app.FragmentTransaction fragmentTransaction2 = getSupportFragmentManager().beginTransaction();
fragmentTransaction2.replace(R.id.frame,fragment2);
fragmentTransaction2.commit();
return true;
default:
Toast.makeText(getApplicationContext(),"Somethings Wrong",Toast.LENGTH_SHORT).show();
return true;
}
}
});
// Initializing Drawer Layout and ActionBarToggle
drawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
ActionBarDrawerToggle actionBarDrawerToggle = new ActionBarDrawerToggle(this,drawerLayout,toolbar,R.string.drawer_open, R.string.drawer_close){
@Override
public void onDrawerClosed(View drawerView) {
// Code here will be triggered once the drawer closes as we dont want anything to happen so we leave this blank
super.onDrawerClosed(drawerView);
}
@Override
public void onDrawerOpened(View drawerView) {
// Code here will be triggered once the drawer open as we dont want anything to happen so we leave this blank
super.onDrawerOpened(drawerView);
}
};
//Setting the actionbarToggle to drawer layout
drawerLayout.setDrawerListener(actionBarDrawerToggle);
//calling sync state is necessay or else your hamburger icon wont show up
actionBarDrawerToggle.syncState();
}
在toolbar.xml中使用它
<?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.Toolbar xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@color/colorPrimary"
android:elevation="4dp"
android:id="@+id/toolbar"
android:theme="@style/ThemeOverlay.AppCompat.Dark"
>
</android.support.v7.widget.Toolbar>
如果想要使用，可以使用这个导航头
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="192dp"
android:background="?attr/colorPrimaryDark"
android:padding="16dp"
android:theme="@style/ThemeOverlay.AppCompat.Dark"
android:orientation="vertical"
android:gravity="bottom">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="56dp"
android:id="@+id/navhead"
android:orientation="vertical"
android:layout_alignParentBottom="true"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true">
<TextView
android:id="@+id/name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="16dp"
android:textColor="#ffffff"
android:text="tanya"
android:textSize="14sp"
android:textStyle="bold"
/>
<TextView
android:id="@+id/email"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="#ffffff"
android:layout_marginLeft="16dp"
android:layout_marginTop="5dp"
android:text="tanya.com"
android:textSize="14sp"
android:textStyle="normal"
/>
</LinearLayout>
<de.hdodenhof.circleimageview.CircleImageView
android:layout_width="70dp"
android:layout_height="70dp"
android:layout_below="@+id/imageView"
android:layout_marginTop="15dp"
android:src="@drawable/face"
android:id="@+id/circleView"
/>
</RelativeLayout>
我的建议是:完全不要使用活动，而是使用片段，并将它们替换到容器中(例如线性布局)，在其中显示您的第一个片段。[注意:你可以在导航图中使用这个概念。Compose进一步减少了制作xml布局的需要，所以我们也可以将其应用于此。]
代码可以在Android开发者教程中找到，你只需要自定义。
http://developer.android.com/training/implementing-navigation/nav-drawer.html
这是明智的，你应该在你的应用程序中使用越来越多的片段，应该只有四个基本的活动，你在你的AndroidManifest.xml中提到除了外部的(例如FacebookActivity):
SplashActivity: uses no fragment, and uses FullScreen theme.
LoginSignUpActivity: Do not require NavigationDrawer at all, and no back button as well, so simply use the normal toolbar, but at the least, 3 or 4 fragments will be required. Uses no-action-bar theme
HomeActivity or DashBoard Activity: Uses no-action-bar theme. Here you require Navigation drawer, also all the screens that follow will be fragments or nested fragments, till the leaf view, with the shared drawer. All the settings, user profile and etc. will be here as fragments, in this activity.
The fragments here will not be added to the back stack and will be opened from the drawer menu items. In the case of fragments that require back button instead of the drawer, there is a fourth kind of activity below.
Activity without drawer. This activity has a back button on top and the fragments inside will be sharing the same action-bar. These fragments will be added to the back-stack, as there will be a navigation history.
[进一步指导请参见:https://stackoverflow.com/a/51100507/787399]
快乐编码!!
