ArrayIndexOutOfBoundsException in PhotoView + ViewPager



我使用的是PhotoView库,但在将其与viewpager一起使用时,我在缩放时出错。

08-22 17:14:50.096: E/AndroidRuntime(8740): FATAL EXCEPTION: main
08-22 17:14:50.096: E/AndroidRuntime(8740): java.lang.IllegalArgumentException: pointerIndex out of range
08-22 17:14:50.096: E/AndroidRuntime(8740):     at android.view.MotionEvent.nativeGetAxisValue(Native Method)
08-22 17:14:50.096: E/AndroidRuntime(8740):     at android.view.MotionEvent.getX(MotionEvent.java:2148)
08-22 17:14:50.096: E/AndroidRuntime(8740):     at android.support.v4.view.MotionEventCompatEclair.getX(MotionEventCompatEclair.java:32)
08-22 17:14:50.096: E/AndroidRuntime(8740):     at android.support.v4.view.MotionEventCompat$EclairMotionEventVersionImpl.getX(MotionEventCompat.java:91)
08-22 17:14:50.096: E/AndroidRuntime(8740):     at android.support.v4.view.MotionEventCompat.getX(MotionEventCompat.java:219)
08-22 17:14:50.096: E/AndroidRuntime(8740):     at android.support.v4.view.ViewPager.onInterceptTouchEvent(ViewPager.java:1834)
08-22 17:14:50.096: E/AndroidRuntime(8740):     at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1909)
08-22 17:14:50.096: E/AndroidRuntime(8740):     at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2270)
08-22 17:14:50.096: E/AndroidRuntime(8740):     at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2010)
08-22 17:14:50.096: E/AndroidRuntime(8740):     at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2270)
08-22 17:14:50.096: E/AndroidRuntime(8740):     at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2010)
08-22 17:14:50.096: E/AndroidRuntime(8740):     at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2270)
08-22 17:14:50.096: E/AndroidRuntime(8740):     at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2010)
08-22 17:14:50.096: E/AndroidRuntime(8740):     at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2270)
08-22 17:14:50.096: E/AndroidRuntime(8740):     at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2010)
08-22 17:14:50.096: E/AndroidRuntime(8740):     at com.android.internal.policy.impl.PhoneWindow$DecorView.superDispatchTouchEvent(PhoneWindow.java:2182)
08-22 17:14:50.096: E/AndroidRuntime(8740):     at com.android.internal.policy.impl.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1512)
08-22 17:14:50.096: E/AndroidRuntime(8740):     at android.app.Activity.dispatchTouchEvent(Activity.java:2466)
08-22 17:14:50.096: E/AndroidRuntime(8740):     at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchTouchEvent(PhoneWindow.java:2130)
08-22 17:14:50.096: E/AndroidRuntime(8740):     at android.view.View.dispatchPointerEvent(View.java:7641)
08-22 17:14:50.096: E/AndroidRuntime(8740):     at android.view.ViewRootImpl.deliverPointerEvent(ViewRootImpl.java:3682)
08-22 17:14:50.096: E/AndroidRuntime(8740):     at android.view.ViewRootImpl.deliverInputEvent(ViewRootImpl.java:3613)
08-22 17:14:50.096: E/AndroidRuntime(8740):     at android.view.ViewRootImpl.doProcessInputEvents(ViewRootImpl.java:4804)
08-22 17:14:50.096: E/AndroidRuntime(8740):     at android.view.ViewRootImpl.enqueueInputEvent(ViewRootImpl.java:4783)
08-22 17:14:50.096: E/AndroidRuntime(8740):     at android.view.ViewRootImpl$WindowInputEventReceiver.onInputEvent(ViewRootImpl.java:4875)
08-22 17:14:50.096: E/AndroidRuntime(8740):     at android.view.InputEventReceiver.dispatchInputEvent(InputEventReceiver.java:185)
08-22 17:14:50.096: E/AndroidRuntime(8740):     at android.view.InputEventReceiver.nativeConsumeBatchedInputEvents(Native Method)
08-22 17:14:50.096: E/AndroidRuntime(8740):     at android.view.InputEventReceiver.consumeBatchedInputEvents(InputEventReceiver.java:174)
08-22 17:14:50.096: E/AndroidRuntime(8740):     at android.view.ViewRootImpl.doConsumeBatchedInput(ViewRootImpl.java:4854)
08-22 17:14:50.096: E/AndroidRuntime(8740):     at android.view.ViewRootImpl$ConsumeBatchedInputRunnable.run(ViewRootImpl.java:4894)
08-22 17:14:50.096: E/AndroidRuntime(8740):     at android.view.Choreographer$CallbackRecord.run(Choreographer.java:749)
08-22 17:14:50.096: E/AndroidRuntime(8740):     at android.view.Choreographer.doCallbacks(Choreographer.java:562)
08-22 17:14:50.096: E/AndroidRuntime(8740):     at android.view.Choreographer.doFrame(Choreographer.java:530)
08-22 17:14:50.096: E/AndroidRuntime(8740):     at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:735)
08-22 17:14:50.096: E/AndroidRuntime(8740):     at android.os.Handler.handleCallback(Handler.java:725)
08-22 17:14:50.096: E/AndroidRuntime(8740):     at android.os.Handler.dispatchMessage(Handler.java:92)
08-22 17:14:50.096: E/AndroidRuntime(8740):     at android.os.Looper.loop(Looper.java:137)
08-22 17:14:50.096: E/AndroidRuntime(8740):     at android.app.ActivityThread.main(ActivityThread.java:5328)
08-22 17:14:50.096: E/AndroidRuntime(8740):     at java.lang.reflect.Method.invokeNative(Native Method)
08-22 17:14:50.096: E/AndroidRuntime(8740):     at java.lang.reflect.Method.invoke(Method.java:511)
08-22 17:14:50.096: E/AndroidRuntime(8740):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1102)
08-22 17:14:50.096: E/AndroidRuntime(8740):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:869)
08-22 17:14:50.096: E/AndroidRuntime(8740):     at dalvik.system.NativeStart.main(Native Method)
08-22 17:15:18.416: D/dalvikvm(8872): GC_FOR_ALLOC freed 94K, 14% free 17782K/20656K, paused 13ms, total 13ms

虽然缩放效果很好,但当图像变远时,就会出现错误,我的活动就会崩溃。。以下是我在viewapager中的代码:

@Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
            Bundle savedInstanceState) {
        pv = new PhotoView(getActivity());
        pv.setLayoutParams(new LayoutParams(LayoutParams.MATCH_PARENT,
                LayoutParams.MATCH_PARENT));
        imageLoader.DisplayImage(mContent, pv);
        LinearLayout layout = new LinearLayout(getActivity());
        layout.setLayoutParams(new LayoutParams(LayoutParams.MATCH_PARENT,
                LayoutParams.MATCH_PARENT));
        layout.setGravity(Gravity.CENTER);
        layout.addView(pv);
        return layout;
    }

我在谷歌上搜索了这个问题,但找不到任何合适的解决方案!有什么建议吗??谢谢各位

我的全部代码:

public class viewpager extends SherlockFragmentActivity {
AllPhonesDatabase apd;
Bundle gotBasket;
@Override
protected void onCreate(Bundle savedInstanceState) {
    // TODO Auto-generated method stub
    super.onCreate(savedInstanceState);
    requestWindowFeature(Window.FEATURE_NO_TITLE);
    setContentView(R.layout.simple_circles);
    apd = new AllPhonesDatabase(this.getApplicationContext()).open();
    gotBasket = viewpager.this.getIntent().getExtras();
    final String imageurl1 = gotBasket.getString("Imageurl1");
    final String imageurl2 = gotBasket.getString("Imageurl2");
    final String imageurl3 = gotBasket.getString("Imageurl3");
    TestFragmentAdapter mAdapter = new TestFragmentAdapter(
            this.getSupportFragmentManager(), imageurl1, imageurl2,
            imageurl3);
    ViewPager mPager = (ViewPager) findViewById(R.id.pager);
    mPager.setAdapter(mAdapter);
    CirclePageIndicator mIndicator = (CirclePageIndicator) findViewById(R.id.indicator);
    mIndicator.setViewPager(mPager);
}
}
class TestFragmentAdapter extends FragmentPagerAdapter {
    protected static String[] CONTENT;
    private int mCount;
    public TestFragmentAdapter(FragmentManager fm, String imageurl1,
            String imageurl2, String imageurl3) {
        super(fm);
        CONTENT = new String[] { imageurl1, imageurl2, imageurl3 };
        mCount = CONTENT.length;
    }
    @Override
    public Fragment getItem(int position) {
        return TestFragment.newInstance(CONTENT[position % CONTENT.length]);
    }
    @Override
    public int getCount() {
        return mCount;
    }
    @Override
    public CharSequence getPageTitle(int position) {
        return TestFragmentAdapter.CONTENT[position % CONTENT.length];
    }
    public void setCount(int count) {
        if (count > 0 && count <= 10) {
            mCount = count;
            notifyDataSetChanged();
        }
    }

public final class TestFragment extends Fragment {
    private static final String KEY_CONTENT = "TestFragment:Content";
    public ImageLoader2 imageLoader;
    PhotoView pv;
    public static TestFragment newInstance(String content) {
        TestFragment fragment = new TestFragment();
        StringBuilder builder = new StringBuilder();
        for (int i = 0; i < 1; i++) {
            builder.append(content).append(" ");
        }
        builder.deleteCharAt(builder.length() - 1);
        fragment.mContent = builder.toString();
        return fragment;
    }
    private String mContent = "???";
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        imageLoader = new com.androidarabia.lazylist.ImageLoader2(
                this.getActivity());
        if ((savedInstanceState != null)
                && savedInstanceState.containsKey(KEY_CONTENT)) {
            mContent = savedInstanceState.getString(KEY_CONTENT);
        }
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
            Bundle savedInstanceState) {
        pv = new PhotoView(getActivity());
        pv.setLayoutParams(new LayoutParams(LayoutParams.MATCH_PARENT,
                LayoutParams.MATCH_PARENT));
        imageLoader.DisplayImage(mContent, pv);
        LinearLayout layout = new LinearLayout(getActivity());
        layout.setLayoutParams(new LayoutParams(LayoutParams.MATCH_PARENT,
                LayoutParams.MATCH_PARENT));
        layout.setGravity(Gravity.CENTER);
        layout.addView(pv);
        return layout;
    }
    @Override
    public void onSaveInstanceState(Bundle outState) {
        super.onSaveInstanceState(outState);
        outState.putString(KEY_CONTENT, mContent);
    }

这似乎是一个bug。我不确定它是在PhotoViewer端还是在机器人端。我通过在自己的自定义视图寻呼机中使用以下代码解决了这个问题:

public class HackyViewPager extends ViewPager {

public HackyViewPager(Context context)
{
    super(context);
}
public HackyViewPager(Context context, AttributeSet attrs)
{
    super(context, attrs);
}
@Override
public boolean onInterceptTouchEvent(MotionEvent ev)
{
    try
    {
            return super.onInterceptTouchEvent(ev);
    }
    catch (IllegalArgumentException e)
    {
    }
    catch (ArrayIndexOutOfBoundsException e)
    {
    }
    return false;
}
}

我在使用这段代码时没有遇到任何问题,放大和缩小似乎都很好。在源代码中创建这个类,然后可以在xml文件中引用它,如下所示:

<my.default.package.HackyViewPager
    android:id="@+id/pager"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    />

您可能应该检查这是否与前面的问题类似。java.lang.IollegalArgumentException:pointerIndex超出范围异常-dispatchTouchEvent

显然我同意hacky view pager的事情,但我想为了完美的实现,必须使用photoViewAttacher.update(),在每次图像资源更改后,就像在成功、失败中一样,相应图像加载库的侦听器使用

  1. 创建一个新类HackyViewPager并粘贴此代码

     public class HackyViewPager extends ViewPager {
    
     public HackyViewPager(Context context) {
         super(context);
     }
     public HackyViewPager(Context context, AttributeSet attrs) {
         super(context, attrs);
     }
    
     @Override
     public boolean onInterceptTouchEvent(MotionEvent ev) {
         try {
                 return super.onInterceptTouchEvent(ev);
             } catch (IllegalArgumentException e) {
             } catch (ArrayIndexOutOfBoundsException e) {
             }
             return false;
         }
     }
    
  2. 您的xml布局更改了viewPager组件的类

     <android.support.v4.view.ViewPager
             android:layout_width="match_parent"
             android:elevation="0dp"
             android:id="@+id/viewPager"
             android:layout_height="match_parent">
     </android.support.v4.view.ViewPager>
    

     <com.yourpackage.HackyViewPager
             android:layout_width="match_parent"
             android:elevation="0dp"
             android:id="@+id/viewPager"
             android:layout_height="match_parent">
     </com.yourpackage.HackyViewPager>
    
  3. 用类HackyViewPager声明您的viewPager变量

     HackyViewPager viewPager;
    

    内部onCreate方法

     viewPager = (HackyViewPager) findViewById(R.id.viewPager);
    

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