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Недавно я пытался создать расширенный внешний вид для своих приложений, реализовав несколько представлений прокрутки.Android Multiple Swipe Views

Позвольте мне объяснить, что я имею в виду под «множественная зрения красть»:

Amazingly drawn demonstration of my goal

И, пожалуйста, простите мои плохие навыки рисования.

Как вы можете видеть, я просто пытаюсь складывать точки прокрутки друг под друга. Разумеется, каждый вид салфетки содержит разные фрагменты.

Я успешно создал один салфетки, но это все, что мне удалось. Для создания одного салфетки-View Я создал класс PagerAdapter, который простирается от FragmentPagerAdapter:

public class SectionsPagerAdapter extends FragmentPagerAdapter { 

    public SectionsPagerAdapter(FragmentManager fm) { 
     super(fm); 
    } 

    @Override 
    public Fragment getItem(int i) { 
     Fragment fragment; 
     switch(i){ 
     case 0: 
      fragment = new MyFragment1(); 
      break; 
     case 1: 
      fragment = new MyFragment2(); 
      break; 
     case 2: 
      fragment = new MyFragment3(); 
      break; 
     default: 
      throw new IllegalArgumentException("Invalid section number"); 
     } 

     return fragment; 
    }} 

Класс с именем "MyFragment1/2/3" представляет собой класс, который создает представление с правильной планировкой:

public static class MyFragment1 extends Fragment { 
    @Override 
    public View onCreateView(LayoutInflater inflater, ViewGroup container, 
     Bundle savedInstanceState) { 
     View v = inflater.inflate(R.layout.simpletab, null); 
     return v; 
} 
} 

Я создал ViewPager и SectionsPagerAdapter.

SectionsPagerAdapter mSectionsPagerAdapter; 
ViewPager mViewPager; 

Кроме того, в OnCreate функции MainActivity я добавил:

 mSectionsPagerAdapter = new SectionsPagerAdapter(
      getSupportFragmentManager()); 


    mViewPager = (ViewPager) findViewById(R.id.comp); 
    mViewPager.setAdapter(mSectionsPagerAdapter); 

И это дает мне салфетки ракурс. Теперь я попытался сделать два из них, поэтому я написал еще один класс PagerAdapter, который инициирует другой фрагмент. Я также создал новый ViewPager и определил его как я сделал для первой:

SectionsPagerAdapter mSectionsPagerAdapter; 
OtherSectionsPagerAdapter OtherPagerAdapter; 

ViewPager mViewPager; 
ViewPager OtherViewPager; 

@Override 
protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_main); 

    // Set up the action bar. 
    //final ActionBar actionBar = getActionBar(); 
    //actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS); 

    // Create the adapter that will return a fragment for each of the three 
    // primary sections of the app. 
    mSectionsPagerAdapter = new SectionsPagerAdapter(
      getSupportFragmentManager()); 

    OtherPagerAdapter = new OtherSectionsPagerAdapter (getSupportFragmentManager()); 

    // Set up the ViewPager with the sections adapter. 
    mViewPager = (ViewPager) findViewById(R.id.comp); 
    mViewPager.setAdapter(mSectionsPagerAdapter); 

    OtherViewPager= (ViewPager) findViewById(R.id.ScreenPager); 
    OtherViewPager.setAdapter(OtherPagerAdapter); 

Это мой main_activity.xml:

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 
xmlns:app="http://schemas.android.com/tools" 
android:id="@+id/LinearLayout1" 
android:layout_width="fill_parent" 
android:layout_height="fill_parent" 
android:orientation="vertical" > 

<android.support.v4.view.ViewPager 
    xmlns:android="http://schemas.android.com/apk/res/android" 
    xmlns:tools="http://schemas.android.com/tools" 
    android:id="@+id/ScreenPager" 
    android:layout_width="wrap_content" 
    android:layout_height="150dp" 
    android:fadingEdge="vertical" 
    app:context=".MainActivity" > 
</android.support.v4.view.ViewPager> 

<android.support.v4.view.ViewPager 
    xmlns:android="http://schemas.android.com/apk/res/android" 
    xmlns:tools="http://schemas.android.com/tools" 
    android:id="@+id/comp" 
    android:layout_width="wrap_content" 
    android:layout_height="match_parent" 
    android:fadingEdge="vertical" 
    app:context=".MainActivity" > 
</android.support.v4.view.ViewPager></LinearLayout> 

И если я пытаюсь запустить приложение, его сбои. Что я делаю неправильно, и не могли бы вы указать мне правильный путь?

EDIT: Вот в LogCat, что я получаю после сбоя:

09-22 16:56:14.283: E/AndroidRuntime(8816): FATAL EXCEPTION: main 
09-22 16:56:14.283: E/AndroidRuntime(8816): java.lang.IllegalArgumentException: Invalid section number 
09-22 16:56:14.283: E/AndroidRuntime(8816):  at com.example.casio.MainActivity$compSectionsPagerAdapter.getItem(MainActivity.java:707) 
09-22 16:56:14.283: E/AndroidRuntime(8816):  at android.support.v4.app.FragmentPagerAdapter.instantiateItem(FragmentPagerAdapter.java:97) 
09-22 16:56:14.283: E/AndroidRuntime(8816):  at android.support.v4.view.ViewPager.addNewItem(ViewPager.java:832) 
09-22 16:56:14.283: E/AndroidRuntime(8816):  at android.support.v4.view.ViewPager.populate(ViewPager.java:1048) 
09-22 16:56:14.283: E/AndroidRuntime(8816):  at android.support.v4.view.ViewPager.populate(ViewPager.java:914) 
09-22 16:56:14.283: E/AndroidRuntime(8816):  at android.support.v4.view.ViewPager.onMeasure(ViewPager.java:1436) 
09-22 16:56:14.283: E/AndroidRuntime(8816):  at android.view.View.measure(View.java:15848) 
09-22 16:56:14.283: E/AndroidRuntime(8816):  at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5008) 
09-22 16:56:14.283: E/AndroidRuntime(8816):  at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1404) 
09-22 16:56:14.283: E/AndroidRuntime(8816):  at android.widget.LinearLayout.measureVertical(LinearLayout.java:695) 
09-22 16:56:14.283: E/AndroidRuntime(8816):  at android.widget.LinearLayout.onMeasure(LinearLayout.java:588) 
09-22 16:56:14.283: E/AndroidRuntime(8816):  at android.view.View.measure(View.java:15848) 
09-22 16:56:14.283: E/AndroidRuntime(8816):  at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5008) 
09-22 16:56:14.283: E/AndroidRuntime(8816):  at android.widget.FrameLayout.onMeasure(FrameLayout.java:310) 
09-22 16:56:14.283: E/AndroidRuntime(8816):  at android.view.View.measure(View.java:15848) 
09-22 16:56:14.283: E/AndroidRuntime(8816):  at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5008) 
09-22 16:56:14.283: E/AndroidRuntime(8816):  at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1404) 
09-22 16:56:14.283: E/AndroidRuntime(8816):  at android.widget.LinearLayout.measureVertical(LinearLayout.java:695) 
09-22 16:56:14.283: E/AndroidRuntime(8816):  at android.widget.LinearLayout.onMeasure(LinearLayout.java:588) 
09-22 16:56:14.283: E/AndroidRuntime(8816):  at android.view.View.measure(View.java:15848) 
09-22 16:56:14.283: E/AndroidRuntime(8816):  at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5008) 
09-22 16:56:14.283: E/AndroidRuntime(8816):  at android.widget.FrameLayout.onMeasure(FrameLayout.java:310) 
09-22 16:56:14.283: E/AndroidRuntime(8816):  at com.android.internal.policy.impl.PhoneWindow$DecorView.onMeasure(PhoneWindow.java:2189) 
09-22 16:56:14.283: E/AndroidRuntime(8816):  at android.view.View.measure(View.java:15848) 
09-22 16:56:14.283: E/AndroidRuntime(8816):  at android.view.ViewRootImpl.performMeasure(ViewRootImpl.java:1905) 
09-22 16:56:14.283: E/AndroidRuntime(8816):  at android.view.ViewRootImpl.measureHierarchy(ViewRootImpl.java:1104) 
09-22 16:56:14.283: E/AndroidRuntime(8816):  at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1284) 
09-22 16:56:14.283: E/AndroidRuntime(8816):  at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1004) 
09-22 16:56:14.283: E/AndroidRuntime(8816):  at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:5481) 
09-22 16:56:14.283: E/AndroidRuntime(8816):  at android.view.Choreographer$CallbackRecord.run(Choreographer.java:749) 
09-22 16:56:14.283: E/AndroidRuntime(8816):  at android.view.Choreographer.doCallbacks(Choreographer.java:562) 
09-22 16:56:14.283: E/AndroidRuntime(8816):  at android.view.Choreographer.doFrame(Choreographer.java:532) 
09-22 16:56:14.283: E/AndroidRuntime(8816):  at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:735) 
09-22 16:56:14.283: E/AndroidRuntime(8816):  at android.os.Handler.handleCallback(Handler.java:730) 
09-22 16:56:14.283: E/AndroidRuntime(8816):  at android.os.Handler.dispatchMessage(Handler.java:92) 
09-22 16:56:14.283: E/AndroidRuntime(8816):  at android.os.Looper.loop(Looper.java:137) 
09-22 16:56:14.283: E/AndroidRuntime(8816):  at android.app.ActivityThread.main(ActivityThread.java:5103) 
09-22 16:56:14.283: E/AndroidRuntime(8816):  at java.lang.reflect.Method.invokeNative(Native Method) 
09-22 16:56:14.283: E/AndroidRuntime(8816):  at java.lang.reflect.Method.invoke(Method.java:525) 
09-22 16:56:14.283: E/AndroidRuntime(8816):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:737) 
09-22 16:56:14.283: E/AndroidRuntime(8816):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553) 
09-22 16:56:14.283: E/AndroidRuntime(8816):  at dalvik.system.NativeStart.main(Native Method) 
09-22 17:58:20.469: E/AndroidRuntime(12171): FATAL EXCEPTION: main 
09-22 17:58:20.469: E/AndroidRuntime(12171): java.lang.IllegalArgumentException: Invalid section number 
09-22 17:58:20.469: E/AndroidRuntime(12171): at com.example.casio.MainActivity$compSectionsPagerAdapter.getItem(MainActivity.java:707) 
09-22 17:58:20.469: E/AndroidRuntime(12171): at android.support.v4.app.FragmentPagerAdapter.instantiateItem(FragmentPagerAdapter.java:97) 
09-22 17:58:20.469: E/AndroidRuntime(12171): at android.support.v4.view.ViewPager.addNewItem(ViewPager.java:832) 
09-22 17:58:20.469: E/AndroidRuntime(12171): at android.support.v4.view.ViewPager.populate(ViewPager.java:1048) 
09-22 17:58:20.469: E/AndroidRuntime(12171): at android.support.v4.view.ViewPager.populate(ViewPager.java:914) 
09-22 17:58:20.469: E/AndroidRuntime(12171): at android.support.v4.view.ViewPager.onMeasure(ViewPager.java:1436) 
09-22 17:58:20.469: E/AndroidRuntime(12171): at android.view.View.measure(View.java:15848) 
09-22 17:58:20.469: E/AndroidRuntime(12171): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5008) 
09-22 17:58:20.469: E/AndroidRuntime(12171): at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1404) 
09-22 17:58:20.469: E/AndroidRuntime(12171): at android.widget.LinearLayout.measureVertical(LinearLayout.java:695) 
09-22 17:58:20.469: E/AndroidRuntime(12171): at android.widget.LinearLayout.onMeasure(LinearLayout.java:588) 
09-22 17:58:20.469: E/AndroidRuntime(12171): at android.view.View.measure(View.java:15848) 
09-22 17:58:20.469: E/AndroidRuntime(12171): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5008) 
09-22 17:58:20.469: E/AndroidRuntime(12171): at android.widget.FrameLayout.onMeasure(FrameLayout.java:310) 
09-22 17:58:20.469: E/AndroidRuntime(12171): at android.view.View.measure(View.java:15848) 
09-22 17:58:20.469: E/AndroidRuntime(12171): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5008) 
09-22 17:58:20.469: E/AndroidRuntime(12171): at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1404) 
09-22 17:58:20.469: E/AndroidRuntime(12171): at android.widget.LinearLayout.measureVertical(LinearLayout.java:695) 
09-22 17:58:20.469: E/AndroidRuntime(12171): at android.widget.LinearLayout.onMeasure(LinearLayout.java:588) 
09-22 17:58:20.469: E/AndroidRuntime(12171): at android.view.View.measure(View.java:15848) 
09-22 17:58:20.469: E/AndroidRuntime(12171): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5008) 
09-22 17:58:20.469: E/AndroidRuntime(12171): at android.widget.FrameLayout.onMeasure(FrameLayout.java:310) 
09-22 17:58:20.469: E/AndroidRuntime(12171): at com.android.internal.policy.impl.PhoneWindow$DecorView.onMeasure(PhoneWindow.java:2189) 
09-22 17:58:20.469: E/AndroidRuntime(12171): at android.view.View.measure(View.java:15848) 
09-22 17:58:20.469: E/AndroidRuntime(12171): at android.view.ViewRootImpl.performMeasure(ViewRootImpl.java:1905) 
09-22 17:58:20.469: E/AndroidRuntime(12171): at android.view.ViewRootImpl.measureHierarchy(ViewRootImpl.java:1104) 
09-22 17:58:20.469: E/AndroidRuntime(12171): at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1284) 
09-22 17:58:20.469: E/AndroidRuntime(12171): at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1004) 
09-22 17:58:20.469: E/AndroidRuntime(12171): at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:5481) 
09-22 17:58:20.469: E/AndroidRuntime(12171): at android.view.Choreographer$CallbackRecord.run(Choreographer.java:749) 
09-22 17:58:20.469: E/AndroidRuntime(12171): at android.view.Choreographer.doCallbacks(Choreographer.java:562) 
09-22 17:58:20.469: E/AndroidRuntime(12171): at android.view.Choreographer.doFrame(Choreographer.java:532) 
09-22 17:58:20.469: E/AndroidRuntime(12171): at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:735) 
09-22 17:58:20.469: E/AndroidRuntime(12171): at android.os.Handler.handleCallback(Handler.java:730) 
09-22 17:58:20.469: E/AndroidRuntime(12171): at android.os.Handler.dispatchMessage(Handler.java:92) 
09-22 17:58:20.469: E/AndroidRuntime(12171): at android.os.Looper.loop(Looper.java:137) 
09-22 17:58:20.469: E/AndroidRuntime(12171): at android.app.ActivityThread.main(ActivityThread.java:5103) 
09-22 17:58:20.469: E/AndroidRuntime(12171): at java.lang.reflect.Method.invokeNative(Native Method) 
09-22 17:58:20.469: E/AndroidRuntime(12171): at java.lang.reflect.Method.invoke(Method.java:525) 
09-22 17:58:20.469: E/AndroidRuntime(12171): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:737) 
09-22 17:58:20.469: E/AndroidRuntime(12171): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553) 
09-22 17:58:20.469: E/AndroidRuntime(12171): at dalvik.system.NativeStart.main(Native Method) 
+1

Опубликовать свой Logcat, который сгенерирован после сбоя – Rahul

ответ

1

Удалить эти строки из ваших обоих ViewPagers.

xmlns:android="http://schemas.android.com/apk/res/android" 
xmlns:tools="http://schemas.android.com/tools" 
+0

Спасибо! Выполняя это, а также отрегулировав количество секций, я должен соответствовать количеству случаев фрагментов в функции getItem(), это исправлено! –

+0

Мое удовольствие. :) – Rahul