我在新的材质设计侧导航规范中看到,你可以在操作栏上方和状态栏后面显示抽屉。我如何实现这个?
当前回答
框架和支持库中的新功能正是这样做的。这里有三个“拼图”:
使用工具栏,以便您可以将操作栏嵌入到视图层次结构中。 使DrawerLayout适合systemwindows,以便它被布局在系统栏后面。 禁用的主题。材质的正常状态栏着色,以便DrawerLayout可以在那里绘制。
我假设您将使用新的appcompat。
首先,你的布局应该是这样的:
<!-- The important thing to note here is the added fitSystemWindows -->
<android.support.v4.widget.DrawerLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/my_drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true">
<!-- Your normal content view -->
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<!-- We use a Toolbar so that our drawer can be displayed
in front of the action bar -->
<android.support.v7.widget.Toolbar
android:id="@+id/my_awesome_toolbar"
android:layout_height="wrap_content"
android:layout_width="match_parent"
android:minHeight="?attr/actionBarSize"
android:background="?attr/colorPrimary" />
<!-- The rest of your content view -->
</LinearLayout>
<!-- Your drawer view. This can be any view, LinearLayout
is just an example. As we have set fitSystemWindows=true
this will be displayed under the status bar. -->
<LinearLayout
android:layout_width="304dp"
android:layout_height="match_parent"
android:layout_gravity="left|start"
android:fitsSystemWindows="true">
<!-- Your drawer content -->
</LinearLayout>
</android.support.v4.widget.DrawerLayout>
然后在你的活动/片段中:
public void onCreate(Bundled savedInstanceState) {
super.onCreate(savedInstanceState);
// Your normal setup. Blah blah ...
// As we're using a Toolbar, we should retrieve it and set it
// to be our ActionBar
Toolbar toolbar = (...) findViewById(R.id.my_awesome_toolbar);
setSupportActionBar(toolbar);
// Now retrieve the DrawerLayout so that we can set the status bar color.
// This only takes effect on Lollipop, or when using translucentStatusBar
// on KitKat.
DrawerLayout drawerLayout = (...) findViewById(R.id.my_drawer_layout);
drawerLayout.setStatusBarBackgroundColor(yourChosenColor);
}
然后你需要确保DrawerLayout在状态栏后面是可见的。你可以通过改变values-v21主题来做到这一点:
values-v21 / themes.xml
<style name="Theme.MyApp" parent="Theme.AppCompat.Light.NoActionBar">
<item name="android:windowDrawsSystemBarBackgrounds">true</item>
<item name="android:statusBarColor">@android:color/transparent</item>
<item name="android:windowTranslucentStatus">true</item>
</style>
注意: 如果一个<fragment android:name="fragments. fragment . "使用“>”代替
<LinearLayout
android:layout_width="304dp"
android:layout_height="match_parent"
android:layout_gravity="left|start"
android:fitsSystemWindows="true">
<!-- Your drawer content -->
</LinearLayout>
如果你在一个视图上调用fitsSystemWindows(布尔值),你从onCreateView方法返回,就会达到预期的效果。
@Override
public View onCreateView(LayoutInflater inflater,
ViewGroup container,
Bundle savedInstanceState) {
View mDrawerListView = inflater.inflate(
R.layout.fragment_navigation_drawer, container, false);
mDrawerListView.setFitsSystemWindows(true);
return mDrawerListView;
}
其他回答
这是最简单的,对我来说很管用:
在值-21中:
<resources>
<style name="AppTheme" parent="AppTheme.Base">
...
<item name="android:windowTranslucentStatus">true</item>
</style>
<dimen name="topMargin">25dp</dimen>
</resources>
在值中:
<resources>
<dimen name="topMargin">0dp</dimen>
</resources>
并设置到工具栏
android:layout_marginTop="@dimen/topMargin"
而不是使用ScrimInsetsFrameLayout…添加一个固定高度为24dp,背景为primaryColor的视图不是更简单吗?
我知道这涉及到在层次结构中添加一个虚拟视图,但对我来说似乎更干净。
我已经试过了,效果很好。
<android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/activity_base_drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<!-- THIS IS THE VIEW I'M TALKING ABOUT... -->
<View
android:layout_width="match_parent"
android:layout_height="24dp"
android:background="?attr/colorPrimary" />
<android.support.v7.widget.Toolbar
android:id="@+id/activity_base_toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="?attr/colorPrimary"
android:elevation="2dp"
android:theme="@style/ThemeOverlay.AppCompat.Dark" />
<FrameLayout
android:id="@+id/activity_base_content_frame_layout"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</LinearLayout>
<fragment
android:id="@+id/activity_base_drawer_fragment"
android:name="com.myapp.drawer.ui.DrawerFragment"
android:layout_width="240dp"
android:layout_height="match_parent"
android:layout_gravity="start"
android:elevation="4dp"
tools:layout="@layout/fragment_drawer" />
</android.support.v4.widget.DrawerLayout>
这里提到的所有答案都太旧太长了。与最新的Navigationview一起工作的最佳和简短的解决方案是
@Override
public void onDrawerSlide(View drawerView, float slideOffset) {
super.onDrawerSlide(drawerView, slideOffset);
try {
//int currentapiVersion = android.os.Build.VERSION.SDK_INT;
if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.LOLLIPOP){
// Do something for lollipop and above versions
Window window = getWindow();
// clear FLAG_TRANSLUCENT_STATUS flag:
window.clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
// add FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS flag to the window
window.addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS);
// finally change the color to any color with transparency
window.setStatusBarColor(getResources().getColor(R.color.colorPrimaryDarktrans));}
} catch (Exception e) {
Crashlytics.logException(e);
}
}
这将改变你的状态栏颜色为透明当你打开抽屉
现在,当你关闭抽屉,你需要改变状态栏颜色再次为深色。你可以这样做。
public void onDrawerClosed(View drawerView) {
super.onDrawerClosed(drawerView);
try {
if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.LOLLIPOP){
// Do something for lollipop and above versions
Window window = getWindow();
// clear FLAG_TRANSLUCENT_STATUS flag:
window.clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
// add FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS flag to the window
window.addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS);
// finally change the color again to dark
window.setStatusBarColor(getResources().getColor(R.color.colorPrimaryDark));}
} catch (Exception e) {
Crashlytics.logException(e);
}
}
然后在主布局中添加一行
android:fitsSystemWindows="true"
你的抽屉布局会是这样的
<android.support.v4.widget.DrawerLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/drawer_layout"
android:fitsSystemWindows="true"
android:layout_width="match_parent"
android:layout_height="match_parent">
导航视图是这样的
<android.support.design.widget.NavigationView
android:id="@+id/navigation_view"
android:layout_height="match_parent"
android:layout_width="wrap_content"
android:layout_gravity="start"
android:fitsSystemWindows="true"
app:headerLayout="@layout/navigation_header"
app:menu="@menu/drawer"
/>
我已经测试过了,它完全可以工作。希望它能帮助到别人。这可能不是最好的方法,但它工作平稳,实现简单。 如果有用的话,做个记号。快乐编码:)
让它工作,在values-v21样式或主题xml需要使用这个属性:
<项名称=“android:窗口半透明状态”>true</item>
这就是奇迹!
编辑:新的设计支持库支持这一点,不再需要以前的方法。
现在可以使用新的Android设计支持库来实现这一点。
你可以看到Chris Banes的Cheesesquare样本应用,它演示了所有的新功能。
以前的方法:
由于没有完整的解决方案,这里是我实现预期结果的方法。
首先在你的项目中包含一个ScrimInsetsFrameLayout。
/*
* Copyright 2014 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* A layout that draws something in the insets passed to
* {@link #fitSystemWindows(Rect)}, i.e. the area above UI chrome
* (status and navigation bars, overlay action bars).
*/
public class ScrimInsetsFrameLayout extends FrameLayout {
private Drawable mInsetForeground;
private Rect mInsets;
private Rect mTempRect = new Rect();
private OnInsetsCallback mOnInsetsCallback;
public ScrimInsetsFrameLayout(Context context) {
super(context);
init(context, null, 0);
}
public ScrimInsetsFrameLayout(Context context, AttributeSet attrs) {
super(context, attrs);
init(context, attrs, 0);
}
public ScrimInsetsFrameLayout(
Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
init(context, attrs, defStyle);
}
private void init(Context context, AttributeSet attrs, int defStyle) {
final TypedArray a = context.obtainStyledAttributes(attrs,
R.styleable.ScrimInsetsView, defStyle, 0);
if (a == null) {
return;
}
mInsetForeground = a.getDrawable(
R.styleable.ScrimInsetsView_insetForeground);
a.recycle();
setWillNotDraw(true);
}
@Override
protected boolean fitSystemWindows(Rect insets) {
mInsets = new Rect(insets);
setWillNotDraw(mInsetForeground == null);
ViewCompat.postInvalidateOnAnimation(this);
if (mOnInsetsCallback != null) {
mOnInsetsCallback.onInsetsChanged(insets);
}
return true; // consume insets
}
@Override
public void draw(Canvas canvas) {
super.draw(canvas);
int width = getWidth();
int height = getHeight();
if (mInsets != null && mInsetForeground != null) {
int sc = canvas.save();
canvas.translate(getScrollX(), getScrollY());
// Top
mTempRect.set(0, 0, width, mInsets.top);
mInsetForeground.setBounds(mTempRect);
mInsetForeground.draw(canvas);
// Bottom
mTempRect.set(0, height - mInsets.bottom, width, height);
mInsetForeground.setBounds(mTempRect);
mInsetForeground.draw(canvas);
// Left
mTempRect.set(
0,
mInsets.top,
mInsets.left,
height - mInsets.bottom);
mInsetForeground.setBounds(mTempRect);
mInsetForeground.draw(canvas);
// Right
mTempRect.set(
width - mInsets.right,
mInsets.top, width,
height - mInsets.bottom);
mInsetForeground.setBounds(mTempRect);
mInsetForeground.draw(canvas);
canvas.restoreToCount(sc);
}
}
@Override
protected void onAttachedToWindow() {
super.onAttachedToWindow();
if (mInsetForeground != null) {
mInsetForeground.setCallback(this);
}
}
@Override
protected void onDetachedFromWindow() {
super.onDetachedFromWindow();
if (mInsetForeground != null) {
mInsetForeground.setCallback(null);
}
}
/**
* Allows the calling container to specify a callback for custom
* processing when insets change (i.e. when {@link #fitSystemWindows(Rect)}
* is called. This is useful for setting padding on UI elements
* based on UI chrome insets (e.g. a Google Map or a ListView).
* When using with ListView or GridView, remember to set
* clipToPadding to false.
*/
public void setOnInsetsCallback(OnInsetsCallback onInsetsCallback) {
mOnInsetsCallback = onInsetsCallback;
}
public static interface OnInsetsCallback {
public void onInsetsChanged(Rect insets);
}
}
然后创建一个可样式,这样inset前台就可以设置了。
值/ attrs.xml
<declare-styleable name="ScrimInsetsView">
<attr name="insetForeground" format="reference|color" />
</declare-styleable>
更新你的活动的xml文件,并确保android:fitsSystemWindows设置为true在DrawerLayout以及ScrimInsetsFrameLayout。
布局/ activity_main.xml
<android.support.v4.widget.DrawerLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/drawerLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
tools:context=".MainActivity">
<!-- The main content view -->
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<!-- Your main content -->
</LinearLayout>
<!-- The navigation drawer -->
<com.example.app.util.ScrimInsetsFrameLayout
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/scrimInsetsFrameLayout"
android:layout_width="320dp"
android:layout_height="match_parent"
android:layout_gravity="start"
android:background="@color/white"
android:elevation="10dp"
android:fitsSystemWindows="true"
app:insetForeground="#4000">
<!-- Your drawer content -->
</com.example.app.util.ScrimInsetsFrameLayout>
</android.support.v4.widget.DrawerLayout>
在活动的onCreate方法中,设置抽屉布局上的状态栏背景色。
MainActivity.java
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// ...
mDrawerLayout = (DrawerLayout) findViewById(R.id.drawerLayout);
mDrawerLayout.setStatusBarBackgroundColor(
getResources().getColor(R.color.primary_dark));
}
最后更新应用程序的主题,使DrawerLayout位于状态栏的后面。
values-v21 / styles.xml
<style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
<item name="android:windowDrawsSystemBarBackgrounds">true</item>
<item name="android:statusBarColor">@android:color/transparent</item>
</style>
结果:
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