查看寻呼机无法正常工作

时间：2013-12-31 13:00:15

标签： android android-fragments android-viewpager android-fragmentactivity

这里我正在实现查看寻呼机，但它显示了一些错误。我调试了我的代码我能够得到所有数据不知道我在哪里缺少。在这里我用LogCat粘贴我的代码请试着看看：

logcat的：

12-31 18:14:41.201: E/AndroidRuntime(13699): FATAL EXCEPTION: main
12-31 18:14:41.201: E/AndroidRuntime(13699): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.lenovo.bsharp/com.lenovo.bsharp.ProductDetailsActivity}: android.view.InflateException: Binary XML file line #8: Error inflating class fragment
12-31 18:14:41.201: E/AndroidRuntime(13699):    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2114)
12-31 18:14:41.201: E/AndroidRuntime(13699):    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2139)
12-31 18:14:41.201: E/AndroidRuntime(13699):    at android.app.ActivityThread.access$700(ActivityThread.java:143)
12-31 18:14:41.201: E/AndroidRuntime(13699):    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1241)
12-31 18:14:41.201: E/AndroidRuntime(13699):    at android.os.Handler.dispatchMessage(Handler.java:99)
12-31 18:14:41.201: E/AndroidRuntime(13699):    at android.os.Looper.loop(Looper.java:137)
12-31 18:14:41.201: E/AndroidRuntime(13699):    at android.app.ActivityThread.main(ActivityThread.java:4960)
12-31 18:14:41.201: E/AndroidRuntime(13699):    at java.lang.reflect.Method.invokeNative(Native Method)
12-31 18:14:41.201: E/AndroidRuntime(13699):    at java.lang.reflect.Method.invoke(Method.java:511)
12-31 18:14:41.201: E/AndroidRuntime(13699):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1038)
12-31 18:14:41.201: E/AndroidRuntime(13699):    at  com.android.internal.os.ZygoteInit.main(ZygoteInit.java:805)
12-31 18:14:41.201: E/AndroidRuntime(13699):    at dalvik.system.NativeStart.main(Native Method)
12-31 18:14:41.201: E/AndroidRuntime(13699): Caused by: android.view.InflateException: Binary XML file line #8: Error inflating class fragment
12-31 18:14:41.201: E/AndroidRuntime(13699):    at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:710)
12-31 18:14:41.201: E/AndroidRuntime(13699):    at android.view.LayoutInflater.rInflate(LayoutInflater.java:752)
12-31 18:14:41.201: E/AndroidRuntime(13699):    at android.view.LayoutInflater.inflate(LayoutInflater.java:495)
12-31 18:14:41.201: E/AndroidRuntime(13699):    at android.view.LayoutInflater.inflate(LayoutInflater.java:397)
12-31 18:14:41.201: E/AndroidRuntime(13699):    at android.view.LayoutInflater.inflate(LayoutInflater.java:353)
12-31 18:14:41.201: E/AndroidRuntime(13699):    at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:318)
12-31 18:14:41.201: E/AndroidRuntime(13699):    at android.app.Activity.setContentView(Activity.java:1925)
12-31 18:14:41.201: E/AndroidRuntime(13699):    at com.lenovo.bsharp.ProductDetailsActivity.onCreate(ProductDetailsActivity.java:64)
12-31 18:14:41.201: E/AndroidRuntime(13699):    at android.app.Activity.performCreate(Activity.java:5203)
12-31 18:14:41.201: E/AndroidRuntime(13699):    at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1094)
12-31 18:14:41.201: E/AndroidRuntime(13699):    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2078)
12-31 18:14:41.201: E/AndroidRuntime(13699):    ... 11 more
12-31 18:14:41.201: E/AndroidRuntime(13699): Caused by: java.lang.ClassCastException: com.lenovo.bsharp.ProductDetailsTopFragment cannot be cast to android.support.v4.app.Fragment
12-31 18:14:41.201: E/AndroidRuntime(13699):    at android.support.v4.app.Fragment.instantiate(Fragment.java:394)
12-31 18:14:41.201: E/AndroidRuntime(13699):    at android.support.v4.app.Fragment.instantiate(Fragment.java:369)
12-31 18:14:41.201: E/AndroidRuntime(13699):    at android.support.v4.app.FragmentActivity.onCreateView(FragmentActivity.java:272)
12-31 18:14:41.201: E/AndroidRuntime(13699):    at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:682)

活动类：

public class ProductDetailsActivity extends FragmentActivity {
private static String cookie;
private static String nid;
private static String productName;
private static byte[] imgByteArray;
private static int productRating;
ViewPager viewPager = null;

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

    Intent intent = getIntent();
    cookie = intent.getStringExtra(BsharpConstant.WEB_SERVICES_COOKIES);
    nid = intent.getStringExtra(BsharpConstant.PRODUCT_NODE_ID);
    productName = intent.getStringExtra(BsharpConstant.PRODUCT_NAME);
    productRating = intent.getIntExtra(BsharpConstant.RATE_VALUE, 1);
    imgByteArray = intent.getByteArrayExtra(BsharpConstant.IMAGE_BITMAP);

    // Top fragments
    Bundle bundleForProductDetailsInTopFrag = new Bundle();
    bundleForProductDetailsInTopFrag.putString(BsharpConstant.PRODUCT_NAME,
            productName);
    bundleForProductDetailsInTopFrag.putByteArray(
            BsharpConstant.IMAGE_BITMAP, imgByteArray);
    bundleForProductDetailsInTopFrag.putInt(BsharpConstant.RATE_VALUE,
            productRating);
    ProductDetailsTopFragment.newInstance(bundleForProductDetailsInTopFrag);

    // LeftFragment
    Bundle bundleForProductDetailsInLeftFrag = new Bundle();
    bundleForProductDetailsInLeftFrag.putString(
            BsharpConstant.WEB_SERVICES_COOKIES, cookie);
    bundleForProductDetailsInLeftFrag.putString(
            BsharpConstant.PRODUCT_NODE_ID, nid);
    bundleForProductDetailsInLeftFrag.putString(
            BsharpConstant.PRODUCT_NAME, productName);
    ProductDetailsLeftFragment
            .newInstance(bundleForProductDetailsInLeftFrag);
    // Right Fragment
    Bundle bundleForProductDetailsInRightFrag = new Bundle();
    bundleForProductDetailsInRightFrag.putString(
            BsharpConstant.PRODUCT_NODE_ID, nid);
    bundleForProductDetailsInRightFrag.putString(
            BsharpConstant.WEB_SERVICES_COOKIES, cookie);
    ProductDetailsRightFragment
            .newInstance(bundleForProductDetailsInRightFrag);
    setContentView(R.layout.product_details);
    viewPager = (ViewPager) findViewById(R.id.pager);
    FragmentManager fragmentManager = getSupportFragmentManager();
    viewPager.setAdapter(new MyAdapter(fragmentManager));

}

public class MyAdapter extends FragmentPagerAdapter {

    public MyAdapter(android.support.v4.app.FragmentManager fm) {
        super(fm);
        // TODO Auto-generated constructor stub
    }

    @Override
    public Fragment getItem(int pageNo) {
        Fragment fragment = null;
        if (pageNo == 0) {
            fragment = new ProductDetailsLeftFragment();
        }
        if (pageNo == 1) {
            fragment = new ProductDetailsRightFragment();
        }
        if (pageNo == 2) {
            fragment = new ProductDetailsPagerThirdFragment();
        }

        return fragment;
    }

    @Override
    public int getCount() {
        // TODO Auto-generated method stub
        return 3;
    }

    @Override
    public CharSequence getPageTitle(int position) {
        if (position == 0) {
            return "Description";
        } else if (position == 1) {
            return "Tech Spec";
        } else if (position == 2) {
            return "Features";
        }
        return null;
    }

}
}

片段A：

public class ProductDetailsLeftFragment extends Fragment{
private static String cookie;
private static String nid;
private static String prodName;
TextView prodNameId;
private static String nodeJsonResponseString;
ProductDetailsInterface productDetailsInterface;

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
        Bundle savedInstanceState) {
    View fragProDetailsLeftView = inflater.inflate(
            R.layout.product_details_left_fragment, container, false);
    prodNameId = (TextView) fragProDetailsLeftView
            .findViewById(R.id.getFirstFragment);
    return fragProDetailsLeftView;
}

@Override
public void onActivityCreated(Bundle savedInstanceState) {
    super.onActivityCreated(savedInstanceState);
    productDetailsInterface = (ProductDetailsInterface) getActivity();
    nodeJsonResponseString = WebserviceBsharpUtil
            .callWebServicesGetSpecificProductsDetails(cookie, nid);
    prodNameId.setText(prodName);
    // productImageId.setImageBitmap(pro)
}

static ProductDetailsLeftFragment newInstance(Bundle bundle) {
    ProductDetailsLeftFragment productDetailsLeftFragment = new ProductDetailsLeftFragment();
    productDetailsLeftFragment.setArguments(bundle);
    cookie = bundle.getString(BsharpConstant.WEB_SERVICES_COOKIES);
    nid = bundle.getString(BsharpConstant.PRODUCT_NODE_ID);
    prodName = bundle.getString(BsharpConstant.PRODUCT_NAME);
    return productDetailsLeftFragment;
}

 }

片段B：

public class ProductDetailsRightFragment extends Fragment {
private static String cookie;
private static String nid;
TextView getProductDetailsDescription;
private static String nodeJsonResponseString;
private static String properDescriptionResponse;
private static String properTechSpecResponse;
private static int id;

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
        Bundle savedInstanceState) {
    View fragProDetailsRightView = inflater.inflate(
            R.layout.product_details_right_fragment, container, false);
    getProductDetailsDescription = (TextView) fragProDetailsRightView
            .findViewById(R.id.getSecondFragment);
    return fragProDetailsRightView;
}

@Override
public void onActivityCreated(Bundle savedInstanceState) {
    super.onActivityCreated(savedInstanceState);
    nodeJsonResponseString = WebserviceBsharpUtil
            .callWebServicesGetSpecificProductsDetails(cookie, nid);
    String getDescription = ProductCategoryIds
            .parseJSONResponseToGetVidOfProductsFromVocabulary(
                    nodeJsonResponseString, BsharpConstant.DESC_BODY,
                    BsharpConstant.UND, BsharpConstant.SAFE_VALUE);
    properDescriptionResponse = getDescription.replaceAll("\\<.*?>", "");
    getProductDetailsDescription
            .setText(properDescriptionResponse);

}

static ProductDetailsRightFragment newInstance(Bundle bundle) {
    ProductDetailsRightFragment productDetailsRightFragment = new ProductDetailsRightFragment();
    productDetailsRightFragment.setArguments(bundle);
    cookie = bundle.getString(BsharpConstant.WEB_SERVICES_COOKIES);
    nid = bundle.getString(BsharpConstant.PRODUCT_NODE_ID);
    return productDetailsRightFragment;
}
 }

片段C：

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

  public class ProductDetailsPagerThirdFragment extends Fragment {
TextView featuresText;

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
        Bundle savedInstanceState) {
    View fragProDetailsThirdView = inflater.inflate(
            R.layout.product_details_right_fragment, container, false);
    featuresText = (TextView) fragProDetailsThirdView
            .findViewById(R.id.getThirdFragment);
    return fragProDetailsThirdView;
}

@Override
public void onActivityCreated(Bundle savedInstanceState) {
    super.onActivityCreated(savedInstanceState);
      featuresText.setText("Fragment C");
  }
  }

这是我的活动XML文件：

fragmentTopFragment我想成为freez所以我没有在视图中使用该片段Pager 

<LinearLayout 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:orientation="vertical"
tools:context=".ProductDetails" >

<fragment
    android:id="@+id/fragmentTopFragment"
    android:name="com.lenovo.bsharp.ProductDetailsTopFragment"
    android:layout_width="match_parent"
    android:layout_height="wrap_content" />

<RelativeLayout
    android:layout_width="match_parent"
    android:layout_height="match_parent" >

    <android.support.v4.view.ViewPager
        xmlns:android="http://schemas.android.com/apk/res/android"
        android:id="@+id/pager"
        android:layout_width="match_parent"
        android:layout_height="match_parent" >

        <android.support.v4.view.PagerTitleStrip
            android:layout_width="match_parent"
            android:layout_height="wrap_content" 
            android:id = "@+id/title"
            android:layout_gravity="bottom"
            android:paddingTop="4dp"
            android:paddingBottom="4dp">
        </android.support.v4.view.PagerTitleStrip>
    </android.support.v4.view.ViewPager>
   </RelativeLayout>

 </LinearLayout>

感谢您的支持。

更新了Logcat：

12-31 18:54:06.481: E/AndroidRuntime(16605): FATAL EXCEPTION: main
12-31 18:54:06.481: E/AndroidRuntime(16605): java.lang.NullPointerException
12-31 18:54:06.481: E/AndroidRuntime(16605):    at com.lenovo.bsharp.ProductDetailsPagerThirdFragment.onActivityCreated(ProductDetailsPagerThirdFragment.java:26)
12-31 18:54:06.481: E/AndroidRuntime(16605):    at android.support.v4.app.Fragment.performActivityCreated(Fragment.java:1468)
12-31 18:54:06.481: E/AndroidRuntime(16605):    at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:931)
12-31 18:54:06.481: E/AndroidRuntime(16605):    at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1088)
12-31 18:54:06.481: E/AndroidRuntime(16605):    at android.support.v4.app.BackStackRecord.run(BackStackRecord.java:682)
12-31 18:54:06.481: E/AndroidRuntime(16605):    at android.support.v4.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1444)
12-31 18:54:06.481: E/AndroidRuntime(16605):    at android.support.v4.app.FragmentManagerImpl.executePendingTransactions(FragmentManager.java:461)
12-31 18:54:06.481: E/AndroidRuntime(16605):    at android.support.v4.app.FragmentPagerAdapter.finishUpdate(FragmentPagerAdapter.java:141)
12-31 18:54:06.481: E/AndroidRuntime(16605):    at android.support.v4.view.ViewPager.populate(ViewPager.java:1012)
12-31 18:54:06.481: E/AndroidRuntime(16605):    at android.support.v4.view.ViewPager.populate(ViewPager.java:881)
12-31 18:54:06.481: E/AndroidRuntime(16605):    at android.support.v4.view.ViewPager$3.run(ViewPager.java:237)
12-31 18:54:06.481: E/AndroidRuntime(16605):    at android.view.Choreographer$CallbackRecord.run(Choreographer.java:725)
12-31 18:54:06.481: E/AndroidRuntime(16605):    at android.view.Choreographer.doCallbacks(Choreographer.java:555)
12-31 18:54:06.481: E/AndroidRuntime(16605):    at android.view.Choreographer.doFrame(Choreographer.java:524)
12-31 18:54:06.481: E/AndroidRuntime(16605):    at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:711)
12-31 18:54:06.481: E/AndroidRuntime(16605):    at android.os.Handler.handleCallback(Handler.java:615)
12-31 18:54:06.481: E/AndroidRuntime(16605):    at android.os.Handler.dispatchMessage(Handler.java:92)
12-31 18:54:06.481: E/AndroidRuntime(16605):    at android.os.Looper.loop(Looper.java:137)
12-31 18:54:06.481: E/AndroidRuntime(16605):    at android.app.ActivityThread.main(ActivityThread.java:4960)
12-31 18:54:06.481: E/AndroidRuntime(16605):    at java.lang.reflect.Method.invokeNative(Native Method)
12-31 18:54:06.481: E/AndroidRuntime(16605):    at java.lang.reflect.Method.invoke(Method.java:511)
12-31 18:54:06.481: E/AndroidRuntime(16605):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1038)
12-31 18:54:06.481: E/AndroidRuntime(16605):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:805)
12-31 18:54:06.481: E/AndroidRuntime(16605):    at dalvik.system.NativeStart.main(Native Method)

2 个答案:

答案 0 :(得分：2)

你的问题似乎在这里：

12-31 18:14:41.201: E/AndroidRuntime(13699): Caused by: java.lang.ClassCastException: com.lenovo.bsharp.ProductDetailsTopFragment cannot be cast to android.support.v4.app.Fragment

确保您的ProductDetailsTopFragment课程正在延长android.support.v4.app.Fragment而不是Fragment。

或者您可以发布ProductDetailsTopFragment的完整代码，以便我们查看是否存在问题。

答案 1 :(得分：0)

您的导入在ProducDetailsTopFragment中可能有误。 确保您使用的是android.support.v4.app.Fragment

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