エラーが発生し、ワンクリックボタンからフラグメントを開くときにアプリケーションがクラッシュする

Question

私は電子商取引のWebサイトを作ったため、購入時にエラーが発生しました。では、ボタンとそのオープン・フラグメントをクリックすると、その解決策は何でしょうか。

ItemDetails.java（これは、今すぐ購入し、ここでのコードで、私はまた、いくつかの断片コードを実装するが、その正常に動作しない）

public class ItemDetailsActivity extends AppCompatActivity { 
    int imagePosition; 
    String stringImageUri; 
    public static int notificationCountCart = 0; 
    TextView textViewshare, textViewmap; 
    private Fragment fragment; 




    @Override 
    public boolean onCreateOptionsMenu(Menu menu) { 
     MenuInflater inflater = getMenuInflater(); 
     inflater.inflate(R.menu.main, menu); 
     //Show cart layout based on items 
     return true; 
    } 




     @Override 
    public boolean onPrepareOptionsMenu(Menu menu) { 
     // Get the notifications MenuItem and 
     // its LayerDrawable (layer-list) 
     MenuItem item = menu.findItem(R.id.action_cart); 
     NotificationCountSetClass.setAddToCart(ItemDetailsActivity.this, item, notificationCountCart); 
     // force the ActionBar to relayout its MenuItems. 
     // onCreateOptionsMenu(Menu) will be called again. 
     invalidateOptionsMenu(); 
     return super.onPrepareOptionsMenu(menu); 
    } 

    @Override 
    public boolean onOptionsItemSelected(MenuItem item) { 
     // Handle action bar item clicks here. The action bar will 
     // automatically handle clicks on the Home/Up button, so long 
     // as you specify a parent activity in AndroidManifest.xml. 
     int id = item.getItemId(); 
     //noinspection SimplifiableIfStatement 
     if (id == R.id.action_search) { 

      startActivity(new Intent(ItemDetailsActivity.this, SearchResultActivity.class)); 
      return true; 
     }else if (id == R.id.action_cart) { 

      /* NotificationCountSetClass.setAddToCart(MainActivity.this, item, notificationCount); 
      invalidateOptionsMenu();*/ 
      startActivity(new Intent(ItemDetailsActivity.this, CartListActivity.class)); 

      /* notificationCount=0;//clear notification count 
      invalidateOptionsMenu();*/ 
      return true; 
     }else { 
      startActivity(new Intent(ItemDetailsActivity.this, EmptyActivity.class)); 

     } 
     return super.onOptionsItemSelected(item); 
    } 


    @Override 
    protected void onCreate(final Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_item_details); 
     SimpleDraweeView mImageView = (SimpleDraweeView)findViewById(R.id.image1); 
     TextView textViewAddToCart = (TextView)findViewById(R.id.text_action_bottom1); 
     TextView textViewBuyNow = (TextView)findViewById(R.id.text_action_bottom2); 
     textViewshare = (TextView) findViewById(R.id.text_action1); 
     textViewmap = (TextView) findViewById(R.id.text_action3); 
     TextView textViewBuyNowwithpayment = (TextView) findViewById(R.id.text_action_bottom2); 

     //Getting image uri from previous screen 
     if (getIntent() != null) { 
      stringImageUri = getIntent().getStringExtra(ImageListFragment.STRING_IMAGE_URI); 
      imagePosition = getIntent().getIntExtra(ImageListFragment.STRING_IMAGE_URI,0); 
     } 

     Uri uri = Uri.parse(stringImageUri); 
     mImageView.setImageURI(uri); 
     mImageView.setOnClickListener(new View.OnClickListener() { 
      @Override 
      public void onClick(View v) { 
       Intent intent = new Intent(ItemDetailsActivity.this, ViewPagerActivity.class); 
       intent.putExtra("position", imagePosition); 
       startActivity(intent); 
      } 
     }); 

     textViewAddToCart.setOnClickListener(new View.OnClickListener() { 
      @Override 
      public void onClick(View view) { 
        ImageUrlUtils imageUrlUtils = new ImageUrlUtils(); 
        imageUrlUtils.addCartListImageUri(stringImageUri); 
        Toast.makeText(ItemDetailsActivity.this, "Item added to cart.", Toast.LENGTH_SHORT).show(); 
        MainActivity.notificationCountCart++; 
        NotificationCountSetClass.setNotifyCount(MainActivity.notificationCountCart); 




      } 
     }); 


     textViewBuyNow.setOnClickListener(new View.OnClickListener() { 
      @Override 
      public void onClick(View view) { 
       ImageUrlUtils imageUrlUtils = new ImageUrlUtils(); 
       imageUrlUtils.addCartListImageUri(stringImageUri); 
       MainActivity.notificationCountCart++; 
       NotificationCountSetClass.setNotifyCount(MainActivity.notificationCountCart); 
       startActivity(new Intent(ItemDetailsActivity.this, CartListActivity.class)); 


      } 
     }); 
//   payment.setOnClickListener(new View.OnClickListener() { 
//    @Override 
//    public void onClick(View v) { 
//     Intent i = new Intent(ItemDetailsActivity.this, PayPalCheckoutActivity.class); 
//     startActivity(i); 
//    } 
//   }); 

     textViewBuyNowwithpayment.setOnClickListener(new View.OnClickListener() { 
      @Override 
      public void onClick(View v) { 
//    Fragment fragment = new PayPalCheckoutActivity(); 
//    FragmentTransaction transaction = getFragmentManager().beginTransaction(); 
//    transaction.replace(R.id.fragment_container,fragment); 
//    transaction.addToBackStack(null); // this will manage backstack 
//    transaction.commit(); 

       FragmentManager fm = getSupportFragmentManager(); 
       PayPalCheckoutActivity fragment = new PayPalCheckoutActivity(); 
       fm.beginTransaction().replace(R.id.fragment_container,fragment).commit(); 
      } 
     }); 

PaypalActivity.java支払いの統合がする（これは、javaファイルであります開始しかし、私のアプリは今、購入ボタンをクリックした後にクラッシュを取得）

public class PayPalCheckoutActivity extends Fragment implements View.OnClickListener { 

    private TextView textMessage = null; 
    private CitrusClient citrusClient = null; 
    private Button btnSignout = null; 
    private Button btnUserManagement = null; 
    private Button btnWalletPayment = null; 
    public boolean isUserLoggedIn = false; 

    public PayPalCheckoutActivity() { 
    } 

    public static PayPalCheckoutActivity newInstance() { 
     return new PayPalCheckoutActivity(); 
    } 

    @Override 
    public View onCreateView(LayoutInflater inflater, ViewGroup container, 
          Bundle savedInstanceState) { 
     View rootView = inflater.inflate(R.layout.fragment_ui, container, false); 
     textMessage = (TextView) rootView.findViewById(R.id.txt_message); 

     btnUserManagement = (Button) rootView.findViewById(R.id.btn_user_management); 
     btnWalletPayment = (Button) rootView.findViewById(R.id.btn_user_wallet); 
     btnSignout = (Button) rootView.findViewById(R.id.btn_logout); 
     btnSignout.setOnClickListener(this); 

     return rootView; 
    } 

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

     citrusClient = CitrusClient.getInstance(getActivity().getApplicationContext()); 
    } 

    @Override 
    public void onClick(View v) { 
     citrusClient.signOut(new Callback<CitrusResponse>() { 
      @Override 
      public void success(CitrusResponse citrusResponse) { 
       ((UIActivity) getActivity()).showSnackBar(citrusResponse.getMessage()); 

       textMessage.setText("Please Sign In or Sign Up the user."); 
       btnSignout.setVisibility(View.GONE); 
       btnUserManagement.setVisibility(View.VISIBLE); 
       btnWalletPayment.setVisibility(View.GONE); 
      } 

      @Override 
      public void error(CitrusError error) { 
       ((UIActivity) getActivity()).showSnackBar(error.getMessage()); 
      } 
     }); 
    } 

    @Override 
    public void onResume() { 
     super.onResume(); 
     checkUserLogin(); 
    } 

    void checkUserLogin() { 
     citrusClient.isUserSignedIn(new Callback<Boolean>() { 
      @Override 
      public void success(Boolean isUserLoggedIn) { 
       PayPalCheckoutActivity.this.isUserLoggedIn = isUserLoggedIn; 
       if (isUserLoggedIn) { 
        citrusClient.getProfileInfo(new Callback<CitrusUser>() { 
         @Override 
         public void success(CitrusUser citrusUser) { 
          textMessage.setText("Welcome " + citrusUser.getEmailId()); 
          btnWalletPayment.setVisibility(View.VISIBLE); 
          btnUserManagement.setVisibility(View.GONE); 
          btnSignout.setVisibility(View.VISIBLE); 
         } 

         @Override 
         public void error(CitrusError error) { 
          textMessage.setText("Welcome Back"); 
          btnWalletPayment.setVisibility(View.VISIBLE); 
          btnUserManagement.setVisibility(View.GONE); 
          btnSignout.setVisibility(View.VISIBLE); 
         } 
        }); 
       } else { 
        textMessage.setText("Please Sign In or Sign Up the user."); 
        btnWalletPayment.setVisibility(View.GONE); 
        btnUserManagement.setVisibility(View.VISIBLE); 
        btnSignout.setVisibility(View.GONE); 
       } 
      } 

      @Override 
      public void error(CitrusError error) { 
       textMessage.setText(error.getMessage()); 
      } 
     }); 
    } 
} 

エラー

FATAL EXCEPTION: main 
     Process: com.allandroidprojects.ecomsample, PID: 6112 
     java.lang.IllegalArgumentException: No view found for id 0x7f0e0143 (com.allandroidprojects.ecomsample:id/fragment_container) for fragment PayPalCheckoutActivity{a633c04 #0 id=0x7f0e0143} 

しますあなたが/置き換える使用 FrameLayoutその時間なしの断片を追加しようとする

fragment_ui.xml

<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:id="@+id/fragment_container" 
    android:orientation="vertical" 
    android:paddingBottom="@dimen/citrus_activity_vertical_margin" 
    android:paddingLeft="@dimen/citrus_activity_horizontal_margin" 
    android:background="@color/white" 
    android:paddingRight="@dimen/citrus_activity_horizontal_margin" 
    android:paddingTop="@dimen/citrus_activity_vertical_margin"> 

    <TextView 
     android:id="@+id/txt_message" 
     android:layout_width="match_parent" 
     android:layout_height="wrap_content" 
     android:layout_margin="@dimen/button_margin" 
     android:text="Please Sign In or Sign Up the user." /> 

    <Button 
     android:id="@+id/btn_user_management" 
     android:layout_width="match_parent" 
     android:layout_height="wrap_content" 
     android:layout_margin="@dimen/button_margin" 
     android:onClick="onUserManagementClicked" 
     android:text="User Management" /> 

    <Button 
     android:id="@+id/btn_user_wallet" 
     android:layout_width="match_parent" 
     android:layout_height="wrap_content" 
     android:layout_margin="@dimen/button_margin" 
     android:onClick="onWalletPaymentClicked" 
     android:text="Wallet Payment" 
     android:visibility="gone" /> 

    <Button 
     android:id="@+id/btn_logout" 
     android:layout_width="match_parent" 
     android:layout_height="wrap_content" 
     android:layout_margin="@dimen/button_margin" 
     android:text="Logout" /> 

</LinearLayout> 

activity_item_details.xml

<?xml version="1.0" encoding="utf-8"?> 
<LinearLayout 
    android:id="@+id/activity_item_details" 
    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" 
    android:weightSum="10" 
    tools:context="com.codeexpertise.eshop.product.ItemDetailsActivity"> 


    <ScrollView android:id="@+id/scrollbar" 
       android:layout_width="match_parent" 
       android:layout_height="0dp" 
       android:layout_weight="9.5" 
       android:scrollbars="none" 
       android:paddingLeft="@dimen/activity_horizontal_margin" 
       android:paddingRight="@dimen/activity_horizontal_margin" 
       android:paddingTop="@dimen/activity_vertical_margin"> 
     <LinearLayout 
     android:layout_width="match_parent" 
     android:layout_height="wrap_content" 
     android:orientation="vertical"> 
     <com.facebook.drawee.view.SimpleDraweeView xmlns:fresco="http://schemas.android.com/apk/res-auto" 
                android:id="@+id/image1" 
                android:layout_width="match_parent" 
                android:layout_height="200.0dp" 
                fresco:placeholderImage="@color/stay_color" /> 

      <LinearLayout 
       android:layout_width="match_parent" 
       android:layout_height="wrap_content" 
       android:layout_marginTop="@dimen/activity_vertical_margin" 
       android:orientation="vertical"> 
       <TextView android:layout_width="wrap_content" 
          android:layout_height="wrap_content" 
          android:text="Denim Shirt" 
          android:textSize="16dp" 
          android:textColor="@color/gen_black"/> 
       <TextView android:layout_width="wrap_content" 
          android:layout_height="wrap_content" 
          android:layout_marginTop="8dp" 
          android:text="Rs. 1,979" 
          android:textSize="20dp" 
          android:textColor="@color/gen_black" 
          /> 
       <TextView android:layout_width="wrap_content" 
          android:layout_height="wrap_content" 
          android:text="FREE Delivery" 
          android:textSize="12dp" 
          android:layout_marginTop="4dp"/> 
      </LinearLayout> 


      <LinearLayout 
       android:layout_width="match_parent" 
       android:layout_height="wrap_content" 
       android:orientation="horizontal" 
       android:layout_marginTop="8dp"> 

       <TextView android:id="@+id/text_ratings" 
          android:layout_width="wrap_content" 
          android:layout_height="wrap_content" 
          android:background="@color/green_light" 
          android:paddingTop="2dp" 
          android:paddingBottom="2dp" 
          android:paddingLeft="6dp" 
          android:paddingRight="6dp" 
          android:text="4.3 *" 
          android:textSize="12dp" 
          android:textColor="@color/gen_white" 
          android:textStyle="bold"/> 

       <TextView android:id="@+id/text_ratings_reviews" 
          android:layout_width="wrap_content" 
          android:layout_height="wrap_content" 
          android:layout_marginLeft="12dp" 
          android:text="50 ratings \u0026 15 reviews" 
          android:textSize="12dp"/> 

      </LinearLayout>/ 
     <View android:layout_width="match_parent" 
       android:layout_height="@dimen/view_width_small" 
       android:background="@color/grey_light" 
       android:layout_marginTop="8dp"/> 

     <LinearLayout 
      android:layout_width="match_parent" 
      android:layout_height="30dp" 
      android:orientation="horizontal" 
      android:layout_marginTop="8dp" 
      android:weightSum="3"> 

      <LinearLayout android:id="@+id/layout_action1" 
          android:layout_width="0dp" 
          android:layout_height="match_parent" 
          android:layout_weight="1" 
          android:gravity="center" 
          android:orientation="horizontal" 
          android:weightSum="2"> 
       <ImageView android:layout_width="wrap_content" 
          android:layout_height="wrap_content" 
          android:src="@drawable/ic_share_black_18dp"/> 
       <TextView android:id="@+id/text_action1" 
          android:layout_width="wrap_content" 
          android:layout_height="wrap_content" 
          android:layout_weight="1" 
          android:layout_marginLeft="8dp" 
          android:text="Share" 
        android:showAsAction="ifRoom" 
          android:textSize="12dp" 
          android:textColor="@color/gen_black" 
          android:gravity="left" 
        android:actionProviderClass= 
         "android.widget.ShareActionProvider"/> 
      </LinearLayout> 

      <View android:layout_width="@dimen/view_width_small" 
        android:layout_height="match_parent" 
        android:background="@color/grey_light"/> 

      <LinearLayout android:id="@+id/layout_action2" 
          android:layout_width="0dp" 
          android:layout_height="match_parent" 
          android:layout_weight="1" 
          android:gravity="center" 
          android:orientation="horizontal" 
          android:weightSum="2"> 
       <ImageView android:layout_width="wrap_content" 
          android:layout_height="wrap_content" 
          android:src="@drawable/ic_filter_none_black_18dp"/> 
       <TextView android:id="@+id/text_action2" 
          android:layout_width="wrap_content" 
          android:layout_height="wrap_content" 
          android:layout_weight="1" 
          android:layout_marginLeft="8dp" 
          android:text="Similar" 
          android:textSize="12dp" 
          android:textColor="@color/gen_black" 
          android:gravity="left"/> 
      </LinearLayout> 

      <View android:layout_width="@dimen/view_width_small" 
        android:layout_height="match_parent" 
        android:background="@color/grey_light"/> 

      <LinearLayout android:id="@+id/layout_action3" 
          android:layout_width="0dp" 
          android:layout_height="match_parent" 
          android:layout_weight="1" 
          android:gravity="center" 
          android:orientation="horizontal" 
          android:weightSum="2"> 
       <ImageView android:layout_width="wrap_content" 
          android:layout_height="wrap_content" 
          android:src="@drawable/ic_favorite_border_black_18dp"/> 
       <TextView android:id="@+id/text_action3" 
          android:layout_width="wrap_content" 
          android:layout_height="wrap_content" 
          android:layout_weight="1" 
          android:name="com.google.android.gms.maps.MapFragment" 
          android:layout_marginLeft="8dp" 
          android:text="Store Locator" 
          android:textSize="12dp" 
          android:textColor="@color/gen_black" 
          android:gravity="left"/> 
      </LinearLayout> 
     </LinearLayout> 
     <View android:layout_width="match_parent" 
       android:layout_height="@dimen/view_width_small" 
       android:background="@color/grey_light" 
       android:layout_marginTop="8dp"/> 

     <LinearLayout 
      android:layout_width="match_parent" 
      android:layout_height="wrap_content" 
      android:layout_marginTop="@dimen/activity_vertical_margin" 
      android:paddingBottom="@dimen/activity_vertical_margin" 
      android:orientation="vertical"> 
      <TextView android:layout_width="wrap_content" 
         android:layout_height="wrap_content" 
         android:text="Details" 
         android:textSize="16dp" 
         android:textColor="@color/gen_black"/> 
      <TextView 
         android:layout_width="wrap_content" 
         android:layout_height="wrap_content" 
         android:layout_marginTop="8dp" 
         android:text="\u2022 Regular fit, full sleeve" 
         android:textSize="12dp" 
         android:textColor="@color/gen_black"/> 
      <TextView 
       android:layout_width="wrap_content" 
       android:layout_height="wrap_content" 
       android:layout_marginTop="8dp" 
       android:text="\u2022 Fabric: Cotton" 
       android:textSize="12dp" 
       android:textColor="@color/gen_black"/> 
      <TextView 
       android:layout_width="wrap_content" 
       android:layout_height="wrap_content" 
       android:layout_marginTop="8dp" 
       android:text="\u2022 Pattern: printed" 
       android:textSize="12dp" 
       android:textColor="@color/gen_black"/> 

     </LinearLayout> 
    </LinearLayout> 
    </ScrollView> 

    <LinearLayout 
     android:layout_width="match_parent" 
     android:layout_height="wrap_content" 
     android:layout_weight="0.5" 
     android:orientation="horizontal" 
     android:weightSum="2" 
     android:elevation="30dp" 
     android:background="@color/gen_black"> 
     <TextView android:id="@+id/text_action_bottom1" 
        android:layout_width="wrap_content" 
        android:layout_height="match_parent" 
        android:layout_weight="1" 
        android:background="@color/gen_white" 
        android:text="ADD TO CART" 
        android:textSize="14dp" 
        android:textColor="@color/gen_black" 
        android:textStyle="bold" 
        android:gravity="center"/> 

     <TextView android:id="@+id/text_action_bottom2" 
        android:layout_width="wrap_content" 
        android:layout_height="match_parent" 
        android:layout_weight="1" 
        android:background="#4dc3ff" 
        android:text="BUY NOW" 
        android:textSize="14dp" 
        android:textColor="@color/gen_white" 
        android:textStyle="bold" 
        android:gravity="center"/> 
    </LinearLayout> 
</LinearLayout> 

Answer 1

あなたはidを持つFramelayoutを交換しようとしなければならないがfragment_container

ですあなたが使用する必要がありますandroid.R.id.content、

ケ

FragmentManager fm = getSupportFragmentManager(); 
       PayPalCheckoutActivity fragment = new PayPalCheckoutActivity(); 
       fm.beginTransaction().replace(android.R.id.content,fragment).commit(); 

または

あなたがFramelayoutを使用している場合は一度R.id.fragment_containerが正しいか、あなたのIDを確認してください。

Answer 2

はい、このエラーが発生しました。これを見てみましょう：R.id.fragment_container：

fm.beginTransaction().replace(R.id.fragment_container,fragment).commit();

このコード行は、あなたがidを持つviewgroupにfragmentを交換することを意味します。しかし、あなたのactivityにこのIDは表示されません（代わりにIDはfragmentにあります）。

解決するには、IDをactivity_item_detailに移動してください。