抽屉效果的导航菜单看了很多应用,觉得这种侧滑的抽屉效果的菜单很好。不用切换到另一
抽屉效果的导航菜单 看了很多应用,觉得这种侧滑的抽屉效果的菜单很好。
不用切换到另一个页面,也不用去按菜单的硬件按钮,直接在界面上一个按钮点击,菜单就滑出来,而且感觉能放很多东西。 库的引用: 首先, DrawerLayout这个类是在Support Library里的,需要加上android-support-v4.jar这个包。
然后程序中用时在前面导入import android.support.v4.widget.DrawerLayout;
如果找不到这个类,首先用SDK Manager更新一下Android Support Library,然后在Android SDK\extras\android\support\v4路径下找到android-support-v4.jar,复制到项目的libs路径,将其Add to Build Path.
代码1 布局:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<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 -->
<!-- main content must be the first element of DrawerLayout because it will be drawn first and drawer must be on top of it -->
<FrameLayout
android:id="@+id/content_frame"
android:layout_width="match_parent"
android:layout_height="match_parent" />
<!-- The navigation drawer -->
<ListView
android:id="@+id/left_drawer"
android:layout_width="240dp"
android:layout_height="match_parent"
android:layout_gravity="left"
android:background="#111"
android:choiceMode="singleChoice"
android:divider="@android:color/transparent"
android:dividerHeight="0dp" />
</android.support.v4.widget.DrawerLayout>
</RelativeLayout>
DrawerLayout的第一个子元素是主要内容,即抽屉没有打开时显示的布局。这里采用了一个FrameLayout,里面什么也没放。
DrawerLayout的第二个子元素是抽屉中的内容,即抽屉布局,这里采用了一个ListView。
主要的Activity(从官方实例中扒出来的):
package com.example.hellodrawer;
import android.os.Bundle;
import android.app.Activity;
import android.content.res.Configuration;
import android.view.MenuItem;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.support.v4.app.ActionBarDrawerToggle;
import android.support.v4.view.GravityCompat;
import android.support.v4.widget.DrawerLayout;
public class HelloDrawerActivity extends Activity
{
private String[] mPlanetTitles;
private DrawerLayout mDrawerLayout;
private ActionBarDrawerToggle mDrawerToggle;
private ListView mDrawerList;
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_hello_drawer);
mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
// init the ListView and Adapter, nothing new
initListView();
// set a custom shadow that overlays the main content when the drawer
// opens
mDrawerLayout.setDrawerShadow(R.drawable.drawer_shadow,
GravityCompat.START);
mDrawerToggle = new ActionBarDrawerToggle(this, mDrawerLayout,
R.drawable.ic_drawer, R.string.drawer_open,
R.string.drawer_close)
{
/** Called when a drawer has settled in a completely closed state. */
public void onDrawerClosed(View view)
{
invalidateOptionsMenu(); // creates call to
// onPrepareOptionsMenu()
}
/** Called when a drawer has settled in a completely open state. */
public void onDrawerOpened(View drawerView)
{
invalidateOptionsMenu(); // creates call to
// onPrepareOptionsMenu()
}
};
// Set the drawer toggle as the DrawerListener
mDrawerLayout.setDrawerListener(mDrawerToggle);
// enable ActionBar app icon to behave as action to toggle nav drawer
getActionBar().setDisplayHomeAsUpEnabled(true);
// getActionBar().setHomeButtonEnabled(true);
// Note: getActionBar() Added in API level 11
}
private void initListView()
{
mDrawerList = (ListView) findViewById(R.id.left_drawer);
mPlanetTitles = getResources().getStringArray(R.array.planets_array);
// Set the adapter for the list view
mDrawerList.setAdapter(new ArrayAdapter<String>(this,
R.layout.list_item, mPlanetTitles));
// Set the list's click listener
mDrawerList.setOnItemClickListener(new OnItemClickListener()
{
@Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id)
{
// Highlight the selected item, update the title, and close the
// drawer
mDrawerList.setItemChecked(position, true);
setTitle(mPlanetTitles[position]);
mDrawerLayout.closeDrawer(mDrawerList);
}
});
}
@Override
protected void onPostCreate(Bundle savedInstanceState)
{
super.onPostCreate(savedInstanceState);
// Sync the toggle state after onRestoreInstanceState has occurred.
mDrawerToggle.syncState();
}
@Override
public void onConfigurationChanged(Configuration newConfig)
{
super.onConfigurationChanged(newConfig);
mDrawerToggle.onConfigurationChanged(newConfig);
}
@Override
public boolean onOptionsItemSelected(MenuItem item)
{
// Pass the event to ActionBarDrawerToggle, if it returns
// true, then it has handled the app icon touch event
if (mDrawerToggle.onOptionsItemSelected(item))
{
return true;
}
// Handle your other action bar items...
return super.onOptionsItemSelected(item);
}
}
比较纠结的是用了Level 11的一个API,这样minSdkVersion就有限制,不能太低。
图片资源Android官网示例处提供下载了。
程序运行后效果如下: 抽屉打开前:
抽屉打开后:
代码2 今天又看了一下DrawerLayout的类,发现有很多方法可以直接用的。
重新试了一下,其实不用上面那么麻烦,随便自己定义一个按钮控制抽屉的打开就行:
布局:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context=".DrawerActivity" >
<android.support.v4.widget.DrawerLayout
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" >
<Button
android:id="@+id/btn"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="open"
/>
</FrameLayout>
<!-- The navigation drawer -->
<ListView
android:id="@+id/left_drawer"
android:layout_width="240dp"
android:layout_height="match_parent"
android:layout_gravity="start"
android:background="#111"
android:choiceMode="singleChoice"
android:divider="@android:color/transparent"
android:dividerHeight="0dp" />
</android.support.v4.widget.DrawerLayout>
</RelativeLayout>
主要代码:
package com.example.hellodrawer;
import android.os.Bundle;
import android.app.Activity;
import android.support.v4.widget.DrawerLayout;
import android.view.Gravity;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
public class DrawerActivity extends Activity
{
private DrawerLayout mDrawerLayout = null;
@Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_drawer);
mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
Button button = (Button) findViewById(R.id.btn);
button.setOnClickListener(new OnClickListener()
{
@Override
public void onClick(View v)
{
// 按钮按下,将抽屉打开
mDrawerLayout.openDrawer(Gravity.LEFT);
}
});
}
}
使用Toolbar + DrawerLayout快速实现高大上菜单侧滑 如果你有在关注一些遵循最新的Material Design设计规范的应用的话(如果没有,假设你有!),也许会发现有很多使用了看起来很舒服、很高大上的侧滑菜单动画效果,示例如下(via 参考2):
今天就来使用官方支持库来快速实现这类效果,需要使用到Toolbar和DrawerLayout,详细步骤如下:(如果你还不知道这两个Widget,先自己Google吧~) 首先需要添加appcompat-v7支持:
如果是在Android Studio 1.0 RC4上创建的项目,默认已经添加了appcompat-v7支持了,如果不是最新版AS则需要在build.gradle中添加如下代码:
dependencies {
...//其他代码
compile 'com.android.support:appcompat-v7:21.0.2'
}
添加完成后需要同步一下gradle
添加Toolbar:
由于Toolbar是继承自View,所以可以像其他标准控件一样直接主布局文件添加Toolbar,但是为了提高Toolbar的重用效率,可以在layout创建一个custom_toolbar.xml代码如下:
<?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.Toolbar xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/tl_custom"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="?attr/colorPrimary"
android:minHeight="?attr/actionBarSize"
android:popupTheme="@style/ThemeOverlay.AppCompat.Light"
app:theme="@style/ThemeOverlay.AppCompat.ActionBar">
</android.support.v7.widget.Toolbar>
说明:
android.support.v7.widget.Toolbar - 当然如果只在Lollipop中可以直接使用Toolbar而不需要加上v7支持 xmlns:app - 自定义xml命名控件,在AS中可以直接指定res-auto而不需要使用完整包名 android:background 和 android:minHeight 均可以在styles.xml中声明 添加DrawerLayout:
和Toolbar类似,为了提高代码重用效率,可以在layout中创建一个custom_drawerlayout.xml代码如下:
<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/dl_left"
android:layout_width="match_parent"
android:layout_height="match_parent">
<!--主布局-->
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<ImageView
android:id="@+id/iv_main"
android:layout_width="100dp"
android:layout_height="100dp" />
</LinearLayout>
<!--侧滑菜单-->
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#fff"
android:layout_gravity="start">
<ListView
android:id="@+id/lv_left_menu"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:divider="@null"
android:text="DrawerLayout" />
</LinearLayout>
</android.support.v4.widget.DrawerLayout>
Drawerlayout标签中有两个子节点,一个是左边菜单,一个是主布局,另外需要在左边菜单起始位置设置为android:layout_gravity="start"
实现activity_main.xml:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
tools:context=".MainActivity">
<!--Toolbar-->
<include layout="@layout/custom_toolbar" />
<!--DrawerLayout-->
<include layout="@layout/custom_drawerlayout" />
</LinearLayout>
直接使用include标签,简洁明了
完善Java代码:
public class MainActivity extends ActionBarActivity {
//声明相关变量
private Toolbar toolbar;
private DrawerLayout mDrawerLayout;
private ActionBarDrawerToggle mDrawerToggle;
private ListView lvLeftMenu;
private String[] lvs = {"List Item 01", "List Item 02", "List Item 03", "List Item 04"};
private ArrayAdapter arrayAdapter;
private ImageView ivRunningMan;
private AnimationDrawable mAnimationDrawable;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
findViews(); //获取控件
//京东RunningMan动画效果,和本次Toolbar无关
mAnimationDrawable = (AnimationDrawable) ivRunningMan.getBackground();
mAnimationDrawable.start();
toolbar.setTitle("Toolbar");//设置Toolbar标题
toolbar.setTitleTextColor(Color.parseColor("#ffffff")); //设置标题颜色
setSupportActionBar(toolbar);
getSupportActionBar().setHomeButtonEnabled(true); //设置返回键可用
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
//创建返回键,并实现打开关/闭监听
mDrawerToggle = new ActionBarDrawerToggle(this, mDrawerLayout, toolbar, R.string.open, R.string.close) {
@Override
public void onDrawerOpened(View drawerView) {
super.onDrawerOpened(drawerView);
mAnimationDrawable.stop();
}
@Override
public void onDrawerClosed(View drawerView) {
super.onDrawerClosed(drawerView);
mAnimationDrawable.start();
}
};
mDrawerToggle.syncState();
mDrawerLayout.setDrawerListener(mDrawerToggle);
//设置菜单列表
arrayAdapter = new ArrayAdapter(this, android.R.layout.simple_list_item_1, lvs);
lvLeftMenu.setAdapter(arrayAdapter);
}
private void findViews() {
ivRunningMan = (ImageView) findViewById(R.id.iv_main);
toolbar = (Toolbar) findViewById(R.id.tl_custom);
mDrawerLayout = (DrawerLayout) findViewById(R.id.dl_left);
lvLeftMenu = (ListView) findViewById(R.id.lv_left_menu);
}
}
当然比较重要还有styles.xml和colors.xml,具体如下:
<resources>
<style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
<!--状态栏颜色-->
<item name="colorPrimaryDark">@color/Indigo_colorPrimaryDark</item>
<!--Toolbar颜色-->
<item name="colorPrimary">@color/Indigo_colorPrimary</item>
<!--返回键样式-->
<item name="drawerArrowStyle">@style/AppTheme.DrawerArrowToggle</item>
</style>
<style name="AppTheme.DrawerArrowToggle" parent="Base.Widget.AppCompat.DrawerArrowToggle">
<item name="color">@android:color/white</item>
</style>
</resources>
<?xml version="1.0" encoding="utf-8"?>
<resources>
<color name="Indigo_colorPrimaryDark">#303f9f</color>
<color name="Indigo_colorPrimary">#3f51b5</color>
<color name="Indigo_nav_color">#4675FF</color>
</resources>
到此就实现了高大上菜单侧滑,最终效果如下(注:在Yosemite上貌似直接Record手机屏幕貌似不起作用,而且动画由于帧率原因无法实时,就先这样看吧~)
Android DrawerLayout 菜单 安卓 抽屉