blocks|key|520133|text|使用：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|520134|var+binding+:+ActivityHomeBinding+=+DataBindingUtil.setContentView(this,+R.layout.activity_home)|code-block|syntax|javascript|520135|DataBindingUtil.setContentView返回作为参数传入的特定布局文件的绑定。|offset|length|style|CODE|520136|entityMap^0|0|0|0|U|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|Q|8|@$I|R|J|S|K|L]]|9|@]|A|$]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

Use:

<pre><code>var binding : ActivityHomeBinding = DataBindingUtil.setContentView(this, R.layout.activity_home)
</code></pre>

<code>DataBindingUtil.setContentView</code> is returning the binding of the particular layout file passed in as parameter.

blocks|key|3242848|text|创建这样的绑定对象。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3242849|+val+binding:+ActivityMainBinding+=+DataBindingUtil.setContentView(
++++++++this,+R.layout.activity_main)|code-block|syntax|javascript|3242850|您必须提到活动绑定类型。我有主要的活动，所以绑定类型是ActivityMainBinding。这就是你错过的。|offset|length|style|BOLD|CODE|3242851|应该是这样的：|3242852|override+fun+onCreate(savedInstanceState:+Bundle?)+{+
++super.onCreate(savedInstanceState)+
++setContentView(R.layout.activity_home)
++var+binding+:+ActivityMainBinding+=+
++DataBindingUtil.setContentView(this,+R.layout.activity_home)+
}+|3242853|entityMap^0|0|0|5|6|R|J|0|0|7|0|0^^$0|@$1|2|3|4|5|6|7|T|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|U|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|V|8|@$I|W|J|X|K|L]|$I|Y|J|Z|K|M]]|9|@]|A|$]]|$1|N|3|O|5|6|7|10|8|@$I|11|J|12|K|L]]|9|@]|A|$]]|$1|P|3|Q|5|D|7|13|8|@]|9|@]|A|$E|F]]|$1|R|3|-4|5|6|7|14|8|@]|9|@]|A|$]]]|S|$]]

Create a binding object like this.

<pre><code> val binding: ActivityMainBinding = DataBindingUtil.setContentView(
 this, R.layout.activity_main)
</code></pre>

You have to mention the Activity Binding type. I have the Main activity so the binding type is <code>ActivityMainBinding</code>. This is what you have missed.

It should be like this: 

<pre><code>override fun onCreate(savedInstanceState: Bundle?) { 
 super.onCreate(savedInstanceState) 
 setContentView(R.layout.activity_home)
 var binding : ActivityMainBinding = 
 DataBindingUtil.setContentView(this, R.layout.activity_home) 
} 
</code></pre>

blocks|key|520074|text|顺便说一句，在Android+#JustKidding中，无效和重新启动并不是唯一的解决方案。)|type|unstyled|depth|inlineStyleRanges|entityRanges|data|520075|对于所面临的错误，实际上需要指定View：|520076|val+listViewEmployees+=+findViewById(R.id.listViewEmployees)|offset|length|style|CODE|520077|作为ListView到|520078|val+listViewEmployees+=+findViewById<ListView>(R.id.listViewEmployees)|520079|entityMap^0|0|0|0|1O|0|0|0|1Y|0^^$0|@$1|2|3|4|5|6|7|P|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|Q|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|R|8|@$F|S|G|T|H|I]]|9|@]|A|$]]|$1|J|3|K|5|6|7|U|8|@]|9|@]|A|$]]|$1|L|3|M|5|6|7|V|8|@$F|W|G|X|H|I]]|9|@]|A|$]]|$1|N|3|-4|5|6|7|Y|8|@]|9|@]|A|$]]]|O|$]]

by the way Clean build , invalid and restart is not the only solution in Android studio #JustKidding :) 

Regarding the error that you are facing, you actually need to specify the View:

<code>val listViewEmployees = findViewById(R.id.listViewEmployees)</code>

as ListView to

<code>val listViewEmployees = findViewById&lt;ListView&gt;(R.id.listViewEmployees)</code>

blocks|key|1710434|text|修改代码以：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1710435|++++var+binding+:+ActivityMainBinding+=+
++++DataBindingUtil.setContentView(this,R.layout.activity_home)+|code-block|syntax|javascript|1710436|然后使"File+->无效缓存/重新启动“|1710437|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

Modify your code to :
<pre><code> var binding : ActivityMainBinding = 
 DataBindingUtil.setContentView(this,R.layout.activity_home) 
</code></pre>
Then make &quot;File -&gt; Invalidate Caches / Restart&quot;

blocks|key|1710453|text|您还必须在视图的XML文件中启用绑定，方法是简单地包装布局标记中的所有ui。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1710454|只需转到文件：R.layout.activity_home|offset|length|style|CODE|1710455|应该像下面的代码-|1710456|<?xml+version="1.0"+encoding="utf-8"?>
<layout+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">

++++<data>

++++</data>

++++<androidx.constraintlayout.widget.ConstraintLayout
++++++++android:layout_width="match_parent"
++++++++android:layout_height="match_parent"
++++++++tools:context=".activities.SurveyListActivity">

++++</androidx.constraintlayout.widget.ConstraintLayout>
</layout>|code-block|syntax|javascript|1710457|entityMap^0|0|7|M|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|R|8|@$D|S|E|T|F|G]]|9|@]|A|$]]|$1|H|3|I|5|6|7|U|8|@]|9|@]|A|$]]|$1|J|3|K|5|L|7|V|8|@]|9|@]|A|$M|N]]|$1|O|3|-4|5|6|7|W|8|@]|9|@]|A|$]]]|P|$]]

You have to enable binding in view's XML file as well, by simply wrapping all the ui in layout tag.
Just go to the file: <code>R.layout.activity_home</code>
It should look like the following code-
<pre><code>&lt;?xml version=&quot;1.0&quot; encoding=&quot;utf-8&quot;?&gt;
&lt;layout xmlns:android=&quot;http://schemas.android.com/apk/res/android&quot;
 xmlns:app=&quot;http://schemas.android.com/apk/res-auto&quot;
 xmlns:tools=&quot;http://schemas.android.com/tools&quot;&gt;

 &lt;data&gt;

 &lt;/data&gt;

 &lt;androidx.constraintlayout.widget.ConstraintLayout
 android:layout_width=&quot;match_parent&quot;
 android:layout_height=&quot;match_parent&quot;
 tools:context=&quot;.activities.SurveyListActivity&quot;&gt;

 &lt;/androidx.constraintlayout.widget.ConstraintLayout&gt;
&lt;/layout&gt;
</code></pre>

blocks|key|3243044|text|在您的项目的布局文件(即ativity_home.xml+)中，请确保您已将布局封装在<layout>标记中的约束、线性、相对等方面。还将所有名称空间添加到布局标记中。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|BOLD|entityRanges|data|3243045|例如，更改|3243046|<ScrollView+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"
tools:context=".ui.auth.SignUpActivity">|code-block|syntax|javascript|3243047|至|3243048|<layout+
++++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"
>

<data>
.
.
.
<data/>

<Scroll+View
++++android:layout_width="match_parent"
++++android:layout_height="match_parent"
++++tools:context=".ui.auth.SignUpActivity">|3243049|entityMap^0|C|G|17|8|1V|F|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|T|8|@$9|U|A|V|B|C]|$9|W|A|X|B|C]|$9|Y|A|Z|B|D]]|E|@]|F|$]]|$1|G|3|H|5|6|7|10|8|@]|E|@]|F|$]]|$1|I|3|J|5|K|7|11|8|@]|E|@]|F|$L|M]]|$1|N|3|O|5|6|7|12|8|@]|E|@]|F|$]]|$1|P|3|Q|5|K|7|13|8|@]|E|@]|F|$L|M]]|$1|R|3|-4|5|6|7|14|8|@]|E|@]|F|$]]]|S|$]]

In the layout file of your project i.e. <code>ativity_home.xml</code> make sure that you have enclosed your layout may it be a constraint, linear, relative, etc. in the <code>&lt;layout&gt;</code> tag.
Also, add all the namespaces to the layout tag.
For example, change
<pre><code>&lt;ScrollView xmlns:android=&quot;http://schemas.android.com/apk/res/android&quot;
xmlns:app=&quot;http://schemas.android.com/apk/res-auto&quot;
xmlns:tools=&quot;http://schemas.android.com/tools&quot;
android:layout_width=&quot;match_parent&quot;
android:layout_height=&quot;match_parent&quot;
tools:context=&quot;.ui.auth.SignUpActivity&quot;&gt;
</code></pre>
to
<pre><code>&lt;layout 
 xmlns:android=&quot;http://schemas.android.com/apk/res/android&quot;
 xmlns:app=&quot;http://schemas.android.com/apk/res-auto&quot;
 xmlns:tools=&quot;http://schemas.android.com/tools&quot;
&gt;

&lt;data&gt;
.
.
.
&lt;data/&gt;

&lt;Scroll View
 android:layout_width=&quot;match_parent&quot;
 android:layout_height=&quot;match_parent&quot;
 tools:context=&quot;.ui.auth.SignUpActivity&quot;&gt;
</code></pre>

blocks|key|3242973|text|private+lateinit+var+binding:+ActivityMainBinding
override+fun+onCreate(savedInstanceState:+Bundle?)+{
+++super.onCreate(savedInstanceState)
+++binding+=+DataBindingUtil.setContentView(this@MainActivity,+R.layout.activity_main)
}|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|3242974|在科特林，一切一开始看起来都很奇怪。请参考上面的代码来解决问题，即使错误没有解决，也请签出下面的类型转换。|unstyled|3242975|binding+=+DataBindingUtil.setContentView<ActivityMainBinding>(this@MainActivity,+R.layout.activity_main)|3242976|FYI:名称ActivityMainBinding来自于布局xml的名称。如果它被命名为"activity_main“，它将是"ActivityMainBinding”|3242977|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$B|C]]|$1|D|3|E|5|F|7|N|8|@]|9|@]|A|$]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$B|C]]|$1|I|3|J|5|F|7|P|8|@]|9|@]|A|$]]|$1|K|3|-4|5|F|7|Q|8|@]|9|@]|A|$]]]|L|$]]

<pre><code>private lateinit var binding: ActivityMainBinding
override fun onCreate(savedInstanceState: Bundle?) {
 super.onCreate(savedInstanceState)
 binding = DataBindingUtil.setContentView(this@MainActivity, R.layout.activity_main)
}
</code></pre>

In Kotlin everything seems weird initially. Refer the above code to resolve the issue, even then if the error doesn't resolve, checkout the type casting below.

<pre><code>binding = DataBindingUtil.setContentView&lt;ActivityMainBinding&gt;(this@MainActivity, R.layout.activity_main)
</code></pre>

FYI: The name ActivityMainBinding comes from the name of your layout xml. If it's named "activity_main" it will be "ActivityMainBinding"

I am facing problem in <code>DataBindingUtil.setContentView()</code>. It is showing the following error.

<blockquote>
 [Type inference failed: Not enough information to infer parameter T in fun setContentView(p0: Activity, p1: Int): T!
 Please specify it explicitly.
</blockquote>

MY Code : 

<pre><code>override fun onCreate(savedInstanceState: Bundle?) { 
 super.onCreate(savedInstanceState) 
 // setContentView(R.layout.activity_home) var binding = 
 DataBindingUtil.setContentView(this, R.layout.activity_home) 
} 
</code></pre>

Anyone help me resolve this error. I have done clean and <code>Rebuild(Invalidate and Restart)</code> also. 

Please let me know any other suggestion.

kotlin - resolve error in DataBindingUtil.setContentView()

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我正面临着DataBindingUtil.setContentView()的问题。它显示了以下错误。[类型推断失败:没有足够的信息在setContentView中推断参数T(p0: Activity，p1: Int)：T！请明确说明。我的代码:override fun onCreate(savedInstanceState: Bundle?) {     super.onCreate(savedI

问kotlin -解决DataBindingUtil.setContentView()中的错误
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回答 7

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