在不同的活动相同的导航抽屉 [英] Same Navigation Drawer in different Activities

问题描述

我做了一个工作导航抽屉喜欢它的显示在对 developer.android.com 网站上的教程。但现在，我想用一个导航抽屉，我在NavigationDrawer.class在我的应用程序中创建多个活动。

I made a working navigation drawer like it's shown in the tutorial on the developer.android.com website. But now, I want to use one Navigation Drawer, i created in the NavigationDrawer.class for multiple Activities in my Application.

我的问题是，如果有人在这里可以做一个小教程，这也解释了如何使用一个导航抽屉多项活动。

My question is, if anyone here can make a little Tutorial, which explains, how to use one Navigation drawer for multiple Activities.

我第一次读到它在这个答案 Android的抽屉式导航栏上的多个活动

I read it first at this Answer Android Navigation Drawer on multiple Activities

但它没有对我的项目工作

but it didn't work on my Project

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);

    layers = getResources().getStringArray(R.array.layers_array);
    drawerList = (ListView) findViewById(R.id.left_drawer);
    View header = getLayoutInflater().inflate(R.layout.drawer_list_header, null);
    drawerList.addHeaderView(header, null, false);
    drawerList.setAdapter(new ArrayAdapter<String>(this, R.layout.drawer_list_item, android.R.id.text1,
            layers));
    View footerView = ((LayoutInflater) this.getSystemService(Context.LAYOUT_INFLATER_SERVICE)).inflate(
            R.layout.drawer_list_footer, null, false);
    drawerList.addFooterView(footerView);

    drawerList.setOnItemClickListener(new OnItemClickListener() {
        @Override
        public void onItemClick(AdapterView<?> arg0, View arg1, int pos, long arg3) {
            map.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);
}
}

在这个活动我想有导航抽屉，所以我伸出'NavigationDrawer和一些其他的活动，我想用户相同的导航抽屉

In this Activity i want to have the Navigation Drawer so I extends 'NavigationDrawer' and in some other Activities i want to User the Same Navigation drawer

  public class SampleActivity extends NavigationDrawer {...}

我不知道什么改变......

I don't know what to change...

推荐答案

如果你想有一个抽屉式导航栏，你应该使用片段。 我跟着这个教程上周它的伟大工程：

If you want a navigation drawer, you should use fragments. I followed this tutorial last week and it works great:

<一个href="http://developer.android.com/training/implementing-navigation/nav-drawer.html">http://developer.android.com/training/implementing-navigation/nav-drawer.html

您也可以从本教程下载示例code，就看你如何能做到这一点。

You can also download sample code from this tutorial, to see how you can do this.

无片段：

这是你的BaseActivity code：

This is your BaseActivity Code:

public class BaseActivity extends Activity
{
    public DrawerLayout drawerLayout;
    public ListView drawerList;
    public String[] layers;
    private ActionBarDrawerToggle drawerToggle;
    private Map map;

    protected void onCreate(Bundle savedInstanceState)
    {
        // R.id.drawer_layout should be in every activity with exactly the same id.
        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);

        layers = getResources().getStringArray(R.array.layers_array);
        drawerList = (ListView) findViewById(R.id.left_drawer);
        View header = getLayoutInflater().inflate(R.layout.drawer_list_header, null);
        drawerList.addHeaderView(header, null, false);
        drawerList.setAdapter(new ArrayAdapter<String>(this, R.layout.drawer_list_item, android.R.id.text1,
                layers));
        View footerView = ((LayoutInflater) this.getSystemService(Context.LAYOUT_INFLATER_SERVICE)).inflate(
                R.layout.drawer_list_footer, null, false);
        drawerList.addFooterView(footerView);

        drawerList.setOnItemClickListener(new OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> arg0, View arg1, int pos, long arg3) {
                map.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);
    }
}

所有这一切都需要有一个抽屉式导航应该延长这一活动，而不是活动本身的其他活动，例如：

All the other Activities that needs to have a navigation drawer should extend this Activity instead of Activity itself, example:

public class AnyActivity extends BaseActivity
{
    //Because this activity extends BaseActivity it automatically has the navigation drawer
    //You can just write your normal Activity code and you don't need to add anything for the navigation drawer
}

XML

<android.support.v4.widget.DrawerLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/drawer_layout"
    android:layout_width="match_parent"
    android:layout_height="match_parent">
    <!-- The main content view -->
    <FrameLayout
        android:id="@+id/content_frame"
        android:layout_width="match_parent"
        android:layout_height="match_parent" >
        <!-- Put what you want as your normal screen in here, you can also choose for a linear layout or any other layout, whatever you prefer -->
    </FrameLayout>
    <!-- The navigation drawer -->
    <ListView android:id="@+id/left_drawer"
        android:layout_width="240dp"
        android:layout_height="match_parent"
        android:layout_gravity="start"
        android:choiceMode="singleChoice"
        android:divider="@android:color/transparent"
        android:dividerHeight="0dp"
        android:background="#111"/>
</android.support.v4.widget.DrawerLayout>

---

编辑：

我经历了一些困难自己，所以这里是一个解决方案，如果你得到NullPointerException异常。在BaseActivity改变的onCreate函数保护无效onCreateDrawer（）。其余可保持不变。在活动延伸BaseActivity把code顺序如下：

I experienced some difficulties myself, so here is a solution if you get NullPointerExceptions. In BaseActivity change the onCreate function to protected void onCreateDrawer(). The rest can stay the same. In the Activities which extend BaseActivity put the code in this order:

    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity);
    super.onCreateDrawer();

这帮助我解决我的问题，希望它能帮助！

This helped me fix my problem, hope it helps!

这是如何创建一个导航抽屉里有多个活动，如果您有任何问题随时问。

This is how you can create a navigation drawer with multiple activities, if you have any questions feel free to ask.

编辑2：

正如所说由@GregDan你的 BaseAcivity 也可以覆盖的setContentView（），并呼吁onCreateDrawer有：

As said by @GregDan your BaseAcivity can also override setContentView() and call onCreateDrawer there:

@Override 
public void setContentView(@LayoutRes int layoutResID) 
{ 
    super.setContentView(layoutResID); 
    onCreateDrawer() 
}

这篇关于在不同的活动相同的导航抽屉的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！