LayoutInflate異常與ViewPager

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java.lang.RuntimeException: Unable to start activity ComponentInfo{urlinq.android.com.edu_chat_lollipop/urlinq.android.com.edu_chat.LoginActivity}: android.view.InflateException: Binary XML file line #10: Binary XML file line #10: Error inflating class android.support.v4.view.ViewPager

重新安裝Android Studio後仍然收到此消息。不知道這裏究竟發生了什麼，但是在更新minSDK版本後我收到了這條消息。LayoutInflate異常與ViewPager

我有另一個用戶誰也使用相同的文件，他的應用程序能夠運行。這是運行ViewPager的片段。在活動中定義的ViewPager背景旁邊有一個紅色感嘆號。

private ViewPager mViewPager; 
private PagerAdapter mCustomPagerAdapter; 
private ImageButton signUpBtnToggle; 
private ImageButton loginBtnToggle; 
private ImageButton loginBtn; 

@Override 
public void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
} 

@Override 
/** 
* Load the login_main.xml layout. 
* In addition, load the ViewPager. 
*/ 
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { 
    //initialize viewpager object. 
    View v = inflater.inflate(R.layout.login_main, container, false); 
    mViewPager = (ViewPager) v.findViewById(R.id.loginPager); 
    mViewPager.setAdapter(new LoginAdapter(getActivity().getSupportFragmentManager())); 


    final LayerDrawable background = (LayerDrawable) mViewPager.getBackground(); 

    background.getDrawable(0).setAlpha(0); 
    //lowest drawable 
    background.getDrawable(1).setAlpha(0); 
    background.getDrawable(2).setAlpha(1); //outermost drawable. 

    mViewPager.setPageTransformer(true, new ViewPager.PageTransformer() { 
     @Override 
     public void transformPage(View view, float position) { 
      int index = (Integer) view.getTag(); 
      Drawable currentDrawableInLayerDrawable; 
      currentDrawableInLayerDrawable = background.getDrawable(index); 
      // Change the visibility of each of the fragment layers when swiping left and right. 

      if (position <= -1 || position >= 1) { 
       currentDrawableInLayerDrawable.setAlpha(0); 
      } else if (position == 0) { 
       currentDrawableInLayerDrawable.setAlpha(255); 
      } else { 
       currentDrawableInLayerDrawable.setAlpha((int) (255 - Math.abs(position * 255))); 
      } 
     } 
    }); 

    return v; 
}

Login_Drawable.xml

<?xml version="1.0" encoding="utf-8"?> 
<layer-list xmlns:android="http://schemas.android.com/apk/res/android"> 
    <item> 
     <bitmap 
      android:id="@+id/Idofbg3" 
      android:gravity="fill" 
      android:src="@drawable/welcome" /> 
    </item> 
    <item> 
     <bitmap 
      android:id="@+id/Idofbg2" 
      android:gravity="fill" 
      android:src="@drawable/welcome2" /> 
    </item> 
    <item> 
     <bitmap 
      android:id="@+id/Idofbg1" 
      android:gravity="fill" 
      android:src="@drawable/welcome3" /> 
    </item> 

</layer-list>

的build.gradle

apply plugin: 'com.android.application' 

android { 
    compileSdkVersion 23 
    buildToolsVersion '23.0.1' 

    defaultConfig { 
     applicationId "urlinq.android.com.edu_chat_lollipop" 
     minSdkVersion 22 
     targetSdkVersion 23 
     versionCode 1 
     versionName "1.0" 
    } 
    buildTypes { 
     release { 
      minifyEnabled false 
      proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro' 
     } 
    } 

    repositories { 
     maven { 
      url 'https://oss.sonatype.org/content/repositories/snapshots/' 
     } 
    } 

    dependencies { 
     compile 'com.loopj.android:android-async-http:1.4.9' 
    } 
} 

dependencies { 
    compile fileTree(dir: 'libs', include: ['*.jar']) 
    testCompile 'junit:junit:4.12' 
    compile 'com.android.support:appcompat-v7:23.0.1' 
    compile 'com.android.support:design:23.0.1' 
}

login_main.xml

<?xml version="1.0" encoding="utf-8"?> 
<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:layout_alignParentLeft="true" 
    android:layout_alignParentRight="true" 
    android:layout_alignParentTop="true"> 

    <android.support.v4.view.ViewPager 
     android:id="@+id/loginPager" 
     android:layout_width="match_parent" 
     android:layout_height="340dp" 
     android:background = "@drawable/login_drawable" 
     android:layout_alignParentEnd="true" 
     android:layout_alignParentStart="true" /> 

    <fragment 
     android:layout_width="match_parent" 
     android:layout_height="285dp" 
     android:name="urlinq.android.com.edu_chat.SignUpFragment" 
     android:id="@+id/fragment" 
     android:layout_alignParentStart="true" 
     android:layout_alignParentEnd="true" 
     tools:layout="@layout/combined_login" 
     android:layout_alignParentBottom="true" /> 

    <ImageView 
     android:layout_width="150dp" 
     android:layout_height="65dp" 
     android:id="@+id/eduChatLogo" 
     android:background="@drawable/chatlogo" 
     android:layout_alignParentTop="true" 
     android:layout_centerHorizontal="true" 
     android:layout_marginTop="20dp" /> 

</RelativeLayout>

來源

2015-09-21 Kai Mou

請提供login_main.xml佈局文件 – Dharmaraj

@Dharmaraj完成。 –

嘗試這種添加到依賴性

編譯「com.android.support:support-v4:23.0.1」

來源

2015-09-21 05:08:52 mariopce

剛剛做到了。沒有改變。 –

開始使用viewpager沒有像編譯「com.android.support:appcompat-v7:23.0.1」支持庫編譯「「com.android.support:design:23.0.1'

這將幫助您找出viewpager或支持庫的問題。

來源

2015-09-21 05:13:03

LayoutInflate異常與ViewPager

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