Question

我是Android开发的初学者。我刚刚发布了一个应用程序，但发现了一些故障，所以我想通过创建一个与发布的应用程序具有相同包名的新Android项目来纠正这些故障。但是一旦我完成了更新应用程序，这个应用程序没有在手机上运行（调试）。说“不幸的是，这个App已经停止了。”此外我还试图加入adMob。

请帮助我，因为我必须尽快发布。

一旦应用程序崩溃，这是Logcat：

08-11 18:14:31.063: E/dalvikvm(15877): Could not find class 'com.google.ads.AdView', referenced from method com.gamerspitch.easybluetooth.BlueActivity.initAdView
08-11 18:14:31.254: E/AndroidRuntime(15877): FATAL EXCEPTION: main
08-11 18:14:31.254: E/AndroidRuntime(15877): java.lang.NoClassDefFoundError: com.google.ads.AdView
08-11 18:14:31.254: E/AndroidRuntime(15877):    at com.gamerspitch.easybluetooth.BlueActivity.initAdView(BlueActivity.java:107)
08-11 18:14:31.254: E/AndroidRuntime(15877):    at com.gamerspitch.easybluetooth.BlueActivity.onCreate(BlueActivity.java:40)
08-11 18:14:31.254: E/AndroidRuntime(15877):    at android.app.Activity.performCreate(Activity.java:5133)
08-11 18:14:31.254: E/AndroidRuntime(15877):    at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
08-11 18:14:31.254: E/AndroidRuntime(15877):    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2175)
08-11 18:14:31.254: E/AndroidRuntime(15877):    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2261)
08-11 18:14:31.254: E/AndroidRuntime(15877):    at android.app.ActivityThread.access$600(ActivityThread.java:141)
08-11 18:14:31.254: E/AndroidRuntime(15877):    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1256)
08-11 18:14:31.254: E/AndroidRuntime(15877):    at android.os.Handler.dispatchMessage(Handler.java:99)
08-11 18:14:31.254: E/AndroidRuntime(15877):    at android.os.Looper.loop(Looper.java:137)
08-11 18:14:31.254: E/AndroidRuntime(15877):    at android.app.ActivityThread.main(ActivityThread.java:5103)
08-11 18:14:31.254: E/AndroidRuntime(15877):    at java.lang.reflect.Method.invokeNative(Native Method)
08-11 18:14:31.254: E/AndroidRuntime(15877):    at java.lang.reflect.Method.invoke(Method.java:525)
08-11 18:14:31.254: E/AndroidRuntime(15877):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:737)
08-11 18:14:31.254: E/AndroidRuntime(15877):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
08-11 18:14:31.254: E/AndroidRuntime(15877):    at dalvik.system.NativeStart.main(Native Method)

这是我的admob展示位置的XML。我只是跟着this link添加了admob。

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
xmlns:ads="http://schemas.android.com/apk/lib/com.google.ads"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@drawable/easyb"
tools:context=".BlueActivity" >

<LinearLayout
    android:id="@+id/adviewPlaceholder"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_alignParentBottom="true"
    android:layout_alignParentLeft="true"
    android:orientation="vertical" >
</LinearLayout>

//Other elements

我把它放在我的清单文件＆gt;

中

<activity android:name="com.google.ads.AdActivity" 
        android:configChanges="keyboard|keyboardHidden|orientation|screenLayout|uiMode|screenSize|smallestScreenSize" >

    </activity>

这在我的Activity onCreate方法＆gt;

中

private AdView ad;


@Override
protected void onCreate(Bundle savedInstanceState) {
    requestWindowFeature(Window.FEATURE_NO_TITLE);
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_blue);

    initAdView();
//Other elements
protected void initAdView() {

    ad = new AdView(this, AdSize.SMART_BANNER, "a15204b9eb97566");

    LinearLayout ll = (LinearLayout)findViewById(R.id.adviewPlaceholder);

    ll.addView(ad);

    ad.loadAd(new AdRequest());
}

protected void destroyAdView() {
    if(ad != null) ad.destroy();
}

@Override
protected void onDestroy() {    
    // destroy the ad when the activity is destroyed
    destroyAdView();
    super.onDestroy();
}

先谢谢

Answer 1

根据错误消息中的这一行：

08-11 02：28：56.973：E / AndroidRuntime（27461）： java.lang.RuntimeException：无法启动活动 ComponentInfo {com.gamerspitch.easybluetooth / com.gamerspitch.easybluetooth.BlueActivity}： android.view.InflateException：二进制XML文件行＃9：错误充气类com.google.ads.AdView

您的AdView存在导致应用崩溃的问题。

您能否发布您的.xml布局文件以及活动。

<强>更新

为了使这一点更加明确。我从未在.xml中定义AdView。我只是在我的布局.xml文件中创建一个没有子项的布局，并通过代码我添加了AdView。它看起来像这样：

      private AdView ad;

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

          setContentView(R.layout.yourlayout);

          initAdView();

          // other code...
      }

       protected void initAdView() {

            ad = new AdView(this, AdSize.SMART_BANNER, "MY_AD_UNIT_ID");

            LinearLayout ll = (LinearLayout) findViewById(R.id.adviewPlaceholder);

            ll.addView(ad);

            ad.loadAd(new AdRequest());
        }

        protected void destroyAdView() {
            if(ad != null) ad.destroy();
        }

        @Override
        protected void onDestroy() {    
            // destroy the ad when the activity is destroyed
            destroyAdView();
            super.onDestroy();
        }

Layout yourlayout.xml文件：

<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 >

    <!-- lots of other layout stuff here -->


    <!-- make the adview be on the bottom of the screen -->
    <LinearLayout
        android:id="@+id/adviewPlaceholder"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_alignParentBottom="true"
        android:layout_alignParentLeft="true"
        android:orientation="vertical" >
    </LinearLayout>
 </RelativeLayout>

Answer 2

看起来您的adView导致了崩溃。你是如何实现它的？您是否已包含清单中所需的所有权限？

ClassNotFound异常表示您的admob库未连接到XML。有一些事情可以导致这种情况，但最有可能是它没有在清单中声明：

 <application android:icon="@drawable/icon" android:label="@string/app_name"
           android:debuggable="true">
  <activity android:label="@string/app_name" android:name="yourActivity">
       .....
  </activity>
  <activity android:name="com.google.ads.AdActivity"   <----- this line
            android:configChanges="keyboard|keyboardHidden|orientation|screenLayout|uiMode|screenSize|smallestScreenSize"/>
 </application>

或者它没有在XML文件的顶部声明：

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
          xmlns:ads="http://schemas.android.com/apk/lib/com.google.ads"   <----- this line
          android:orientation="vertical"
          android:layout_width="fill_parent"
          android:layout_height="fill_parent">
   <com.google.ads.AdView android:id="@+id/adView"
                     android:layout_width="wrap_content"
                     android:layout_height="wrap_content"
                     ads:adUnitId="MY_AD_UNIT_ID"
                     ads:adSize="BANNER"
                     ads:testDevices="TEST_EMULATOR, TEST_DEVICE_ID"
                     ads:loadAdOnCreate="true"/>
    </LinearLayout>

尝试一下，如果他们不这样做，请查看Google的文档here和here

Answer 3

您的代码或XML AFAICT没有任何问题。该错误清楚地表明：

Could not find class 'com.google.ads.AdView'

您部署的应用似乎不包含Admob库。你需要找出原因。检查您的构建工具/环境。

Android AdView NoClassDefFoundError

3 个答案: