我知道这个问题之前已经被问过,并且我已经查看了解决方案。我想缩小箭头和标题之间的间距,下图空间太大。
最流行的解决方案是在我的工具栏中添加 app:contentInsetStartWithNavigation="0dp"
XML
代码,如下所示:
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="50dp"
android:theme="@style/CustomToolbarStyle"
app:layout_collapseMode="pin"
app:contentInsetStartWithNavigation="0dp"/>
当我这样做并运行我的应用程序时,我收到错误消息:
Error:(100) No resource identifier found for attribute 'contentInsetStartWithNavigation' in package 'com.packagename'
谷歌搜索该错误导致我尝试解决方案,例如添加到我的 XML
:
android:contentInsetStart="0dp"
android:contentInsetLeft="0dp"
android:contentInsetRight="0dp"
android:contentInsetEnd="0dp"
app:contentInsetLeft="0dp"
app:contentInsetStart="0dp"
app:contentInsetRight="0dp"
app:contentInsetEnd="0dp"
但是当我加载应用程序时,箭头和标题之间的间距没有改变,仍然有很大的空间。
我在 XML
中使用 CoordinatorLayout
,但不明白为什么这会产生任何差异。
此外,当我替换时,在我的 XML
中
<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
与
<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/lib/com.mypackage.name"
根据此解决方案:error: No resource identifier found for attribute 'adSize' in package 'com.google.example' main.xml
我仍然收到错误。
这是我的 Activity 的 java
代码,位于 onCreate
中:
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
//Show the arrow to go back
ActionBar actionbar = getSupportActionBar();
actionbar.setDisplayHomeAsUpEnabled(true);
//show the App title
actionbar.setTitle("Pop");
这是我的 Activity xml 布局:
<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout 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:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
tools:context="com.example.chris.populisto.NewContact">
<android.support.design.widget.AppBarLayout
android:id="@+id/appbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:fitsSystemWindows="true"
android:theme="@style/AppTheme">
<android.support.design.widget.CollapsingToolbarLayout
android:id="@+id/collapsing_toolbar"
android:layout_width="match_parent"
android:layout_height="350dp"
android:fitsSystemWindows="true"
app:contentScrim="?attr/colorPrimary"
app:expandedTitleTextAppearance="@android:color/transparent"
app:layout_scrollFlags="scroll|exitUntilCollapsed"
app:titleEnabled="false"
>
<LinearLayout
android:id="@+id/holder"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="9.5"
android:orientation="vertical"
android:paddingLeft="16dp"
android:paddingRight="16dp"
app:layout_collapseMode="parallax">
<TextView
android:id="@+id/textViewInvisible"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="2"
android:background="@drawable/textboxes_for_contact"
android:visibility="invisible" />
<AutoCompleteTextView
android:id="@+id/textViewCategory"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="1"
android:background="@drawable/textboxes_for_contact"
android:hint="Category" />
<EditText
android:id="@+id/textViewName"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="1"
android:background="@drawable/textboxes_for_contact"
android:hint="Name" />
<EditText
android:id="@+id/textViewPhone"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="1"
android:background="@drawable/textboxes_for_contact"
android:hint="Phone" />
<AutoCompleteTextView
android:id="@+id/textViewAddress"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="1"
android:background="@drawable/textboxes_for_contact"
android:hint="Address" />
<EditText
android:id="@+id/textViewComment"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="1"
android:background="@drawable/textboxes_for_contact"
android:hint="Comment" />
<TextView
android:id="@+id/textViewInvisible2"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="1"
android:background="@drawable/textboxes_for_contact"
android:visibility="invisible" />
</LinearLayout>
<!--This is for bar pinned to top of screen-->
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="50dp"
android:theme="@style/CustomToolbarStyle"
app:layout_collapseMode="pin"
/>
</android.support.design.widget.CollapsingToolbarLayout>
<fragment
android:name="com.example.chris.populisto.ButtonSharingFragment"
android:id = "@+id/myFragment"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
/>
</android.support.design.widget.AppBarLayout>
<android.support.v7.widget.RecyclerView
android:id="@+id/rv"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:scrollbars="vertical"
app:layout_behavior="@string/appbar_scrolling_view_behavior" />
<!--This is positioned in the toolbar, above-->
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="50dp"
android:orientation="vertical">
<RelativeLayout
android:layout_width="wrap_content"
android:layout_height="match_parent"
>
<Button
android:id="@+id/cancel"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:text="CANCEL" />
<Button
android:id="@+id/save"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_toLeftOf="@id/cancel"
android:layout_marginRight="1dp"
android:text="SAVE" />
</RelativeLayout>
</LinearLayout>
</android.support.design.widget.CoordinatorLayout>
这是我的 gradle 依赖项:
dependencies {
//this is the volley library
compile fileTree(dir: 'libs', include: ['*.jar'])
androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
exclude group: 'com.android.support', module: 'support-annotations'
})
// compile 'com.android.support:appcompat-v7:+'
compile 'com.android.volley:volley:1.0.0'
compile 'com.android.support:appcompat-v7:23.4.0'
compile 'com.android.support.constraint:constraint-layout:1.0.2'
compile 'com.googlecode.libphonenumber:libphonenumber:8.4.0'
compile 'com.android.support:design:23.4.0'
compile 'com.google.code.gson:gson:2.8.1'
testCompile 'junit:junit:4.12'
compile 'com.android.support:recyclerview-v7:23.0.0-alpha1'
compile 'com.google.android.gms:play-services-places:15.0.1'
compile ('com.android.support:support-v4:23.4.0'){
force = true;
}
}
最佳答案
您可以将自定义 View 添加到工具栏:
Toolbar toolbar = findViewById(R.id.toolbar)
setSupportActionBar(toolbar);
View logo = getLayoutInflater().inflate(R.layout.toolbar_custom_view_layout, null);
toolbar.addView(logo);
xml toolbar_custom_view_layout 可以是这样的:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="match_parent">
<ImageView
android:id="@+id/back_arrow_id"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/back_arrow"
android:layout_gravity="center_vertical"/>
<TextView
android:id="@+id/title_id"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/title"
android:layout_gravity="center_vertical"
android:marginStart="12dp"/>
</LinearLayout>
关于java - 如何缩小操作栏中向上/后退箭头和标题之间的间距?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/51038422/