Logcat错误：IllegalArgumentException

时间：2016-06-24 14:35:18

标签： android

当我运行我的应用程序时，我收到logcat错误，如下所示：

E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.enxin.crystallise, PID: 14868
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.enxin.crystallise/com.example.enxin.crystallise.Help}: android.view.InflateException: Binary XML file line #32: Error inflating class fragment
   at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2184)
   at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2233)
   at android.app.ActivityThread.access$800(ActivityThread.java:135)
   at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196)
   at android.os.Handler.dispatchMessage(Handler.java:102)
   at android.os.Looper.loop(Looper.java:136)
   at android.app.ActivityThread.main(ActivityThread.java:5001)
   at java.lang.reflect.Method.invokeNative(Native Method)
   at java.lang.reflect.Method.invoke(Method.java:515)
   at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:785)
   at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:601)
   at dalvik.system.NativeStart.main(Native Method)
Caused by: android.view.InflateException: Binary XML file line #32: Error inflating class fragment
   at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:713)
   at android.view.LayoutInflater.rInflate(LayoutInflater.java:755)
   at android.view.LayoutInflater.inflate(LayoutInflater.java:492)
   at android.view.LayoutInflater.inflate(LayoutInflater.java:397)
   at android.view.LayoutInflater.inflate(LayoutInflater.java:353)
   at android.support.v7.app.AppCompatDelegateImplV7.setContentView(AppCompatDelegateImplV7.java:280)
   at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:140)
   at com.example.enxin.crystallise.Help.onCreate(Help.java:11)
   at android.app.Activity.performCreate(Activity.java:5231)
   at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
   at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2148)
   at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2233) 
   at android.app.ActivityThread.access$800(ActivityThread.java:135) 
   at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196) 
   at android.os.Handler.dispatchMessage(Handler.java:102) 
   at android.os.Looper.loop(Looper.java:136) 
   at android.app.ActivityThread.main(ActivityThread.java:5001) 
   at java.lang.reflect.Method.invokeNative(Native Method) 
   at java.lang.reflect.Method.invoke(Method.java:515) 
   at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:785) 
   at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:601) 
   at dalvik.system.NativeStart.main(Native Method) 
Caused by: java.lang.IllegalArgumentException: Binary XML file line #32: Must specify unique android:id, android:tag, or have a parent with an id for com.example.enxin.crystallise.HelpFragment
   at android.support.v4.app.FragmentManagerImpl.onCreateView(FragmentManager.java:2260)
   at android.support.v4.app.FragmentController.onCreateView(FragmentController.java:120)
   at android.support.v4.app.FragmentActivity.dispatchFragmentsOnCreateView(FragmentActivity.java:356)
   at android.support.v4.app.BaseFragmentActivityHoneycomb.onCreateView(BaseFragmentActivityHoneycomb.java:31)
   at android.support.v4.app.FragmentActivity.onCreateView(FragmentActivity.java:79)
   at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:689)
   at android.view.LayoutInflater.rInflate(LayoutInflater.java:755) 
   at android.view.LayoutInflater.inflate(LayoutInflater.java:492) 
   at android.view.LayoutInflater.inflate(LayoutInflater.java:397) 
   at android.view.LayoutInflater.inflate(LayoutInflater.java:353) 
   at android.support.v7.app.AppCompatDelegateImplV7.setContentView(AppCompatDelegateImplV7.java:280) 
   at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:140) 
   at com.example.enxin.crystallise.Help.onCreate(Help.java:11) 
   at android.app.Activity.performCreate(Activity.java:5231) 
   at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087) 
   at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2148) 
   at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2233) 
   at android.app.ActivityThread.access$800(ActivityThread.java:135) 
   at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196) 
   at android.os.Handler.dispatchMessage(Handler.java:102) 
   at android.os.Looper.loop(Looper.java:136) 
   at android.app.ActivityThread.main(ActivityThread.java:5001) 
   at java.lang.reflect.Method.invokeNative(Native Method) 
   at java.lang.reflect.Method.invoke(Method.java:515)

以下是我的错误所在的代码：

public class Help extends AppCompatActivity {
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_help);
    }
}

activity_fragment.xml 

<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="com.example.enxin.crystallise.Help">


    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textAppearance="?android:attr/textAppearanceLarge"
        android:text="@string/title_help"
        android:id="@+id/title_help"
        android:layout_alignParentTop="true"
        android:layout_centerHorizontal="true" />

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textAppearance="?android:attr/textAppearanceMedium"
        android:text="@string/subtitle_help"
        android:id="@+id/subtitle_help"
        android:layout_below="@+id/title_help"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="12dp" />

    <fragment
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:name="com.example.enxin.crystallise.HelpFragment"
        android:layout_below="@+id/subtitle_help"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="36dp"
        tools:layout="@layout/fragment_help" />
</RelativeLayout>

fragment_helo.xml 

<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">

<!-- TODO: Update blank fragment layout -->


<TextView
    android:id="@+id/help1"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="@string/help1"
    android:textAppearance="?android:attr/textAppearanceLarge"
    android:layout_gravity="center_horizontal|top"
    android:layout_alignParentTop="true"
    android:layout_centerHorizontal="true" />

<TextView
    android:id="@+id/help2"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="@string/help2"
    android:textAppearance="?android:attr/textAppearanceMedium"
    android:layout_below="@+id/help1"
    android:layout_marginTop="10dp" />

<TextView
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="@string/help3"
    android:textAppearance="?android:attr/textAppearanceMedium"
    android:layout_below="@+id/help2"
    android:layout_marginTop="10dp" />

HelpFragment.java 

package com.example.enxin.crystallise;


import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;

import com.example.enxin.crystallise.R;

public class HelpFragment extends Fragment {


public HelpFragment() {
    // Required empty public constructor
}


@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
                         Bundle savedInstanceState) {
    // Inflate the layout for this fragment
    return inflater.inflate(R.layout.fragment_help, container, false);
}

}

当我请求查看错误时，突出显示行setContentView。我是Android Studio的新手，所以请帮忙！

2 个答案:

答案 0 :(得分：0)

错误不在您的Java类中，它位于您已声明View的布局的XML文件中。 它必须有id或tag的问题，请务必按照标准检查所有属性是否符合要求。 并且，发布该文件的代码。（包含该片段的XML文件）

答案 1 :(得分：0)

我认为fragment_help.xml中存在问题，您忘记关闭RelativeLayout代码。

只需将</RelativeLayout>放在布局文件的末尾。

希望它会对你有所帮助:)。

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