片段之间的静态位图变量访问

Question

ImageView中的{p> CardView未从LRUCache加载。我确定有些不对劲，但经过几天的调试后无法弄明白。如果只有代码可以在这里完整呈现，但这里是最相关的片段。

设置

TextViews'RecyclerView中的

CardView完全绑定，但不是同一ImageView中的CardView s。我确定图像存在于缓存中，因为长按（空白）ImageView会根据程序在另一个WebView中显示图像。 <{1}} Fragment1和AsyncTask 1和2 Fragment之后加载的静态加载完成。

AsyncTask布局

CardView

<FrameLayout android:id="@+id/flDContainer" xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="wrap_content"> <RelativeLayout android:id="@+id/rlDetFront" android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="vertical"> <android.support.v7.widget.CardView android:id="@+id/cvDet" xmlns:card_view="http://schemas.android.com/apk/res-auto" android:layout_width="match_parent" android:layout_height="wrap_content" card_view:cardCornerRadius="10dp" card_view:cardElevation="12dp" card_view:contentPadding="2dp"> <TextView android:id="@+id/tvDsDistance" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentRight="true" android:textSize="16sp"/> <TextView android:id="@+id/tvDsDistanceUnit" android:layout_width="wrap_content" android:layout_height="wrap_content" android:textSize="10sp"/> <RelativeLayout android:id="@+id/rlMediaLayout" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_below="@+id/headerLayout"> <ImageView android:id="@+id/DetMedia" android:layout_width="310dp" android:layout_height="200dp" android:layout_centerHorizontal="true" android:layout_weight="1" android:adjustViewBounds="true" android:maxHeight="200dp" android:maxWidth="310dp" android:src="@drawable/cake_12"/> </RelativeLayout> </android.support.v7.widget.CardView> : : : : 适配器

ViewPager

class MyShopperPagerAdapter extends FragmentStatePagerAdapter { public MyShopperPagerAdapter(FragmentManager fm) { super(fm); } @Override public Fragment getItem(int arg) { if (arg == 0) { fragment = new Fragment1(); } if (arg == 1) { fragment = new Fragment2(); } if (arg == 2) { fragment = new Fragment3(); } return fragment; } @Override public int getCount() { return 3; } @Override public CharSequence getPageTitle(int position) { String pageTitle = ""; switch (position) { case 0: pageTitle = "TAB 1"; break; case 1: pageTitle = "TAB 2"; break; case 2: pageTitle = "TAB 3"; break; default: break; } return pageTitle; } @Override public int getItemPosition(Object object) { return POSITION_NONE; } } // of class MyShopperPagerAdapter 适配器的RecyclerView

onBindViewHolder

@Override public void onBindViewHolder(MyCardHolder myCardHolder, final int position) { MyView my = this.mysView.get(position); String logoFilename = my.getMyerLogo(); String address = my.getAddress(); String city = my.getCity(); String state = my.getState(); String country = my.getCountry(); String zip = my.getZip(); : : : myCardHolder.shopSL.setText(my.getSubLocality()); myCardHolder.myEndDate.setText(UIHelper.makeDisplayDate(Long.parseLong(myEnds), false)); : : : Bitmap tempBitmap; tempBitmap = fragment1.logoMemCache.get(logoFilename); myCardHolder.shopLogo.setImageBitmap(tempBitmap); tempBitmap = fragment1.myetMemCache.get(myFilename); myCardHolder.myet.setImageBitmap(tempBitmap); myCardHolder.tvAddress.setText(fullAddress); myCardHolder.tvPhones.setText(phones); : : : }

ViewHolder

public class MyCardHolder extends RecyclerView.ViewHolder { private final String LOG_TAG = "POJO MyCardHolder"; RelativeLayout llMyCardFront; RelativeLayout myTakenCounterLayout; RelativeLayout myDateLayout; TextView tvDistance; TextView tvAddress; TextView tvPhones; TextView distanceUnit; ImageView det; TextView myTop; TextView myBot; ImageView shopLogo; TextView shopName; : : : // FAB toolbar FloatingActionButton fabDirections, fabCallMobile, fabCallLandline, fabWebsite; public MyCardHolder(View myItemView) { super(myItemView); RelativeLayout myUserStatusLayout; llMyCardFront = (RelativeLayout) myItemView.findViewById(R.id.rlMyetFront); tvDistance = (TextView) myItemView.findViewById(R.id.tvMysDistance); claimButton = (Button) myItemView.findViewById(R.id.btMyClaim); distanceUnit = (TextView) myItemView.findViewById(R.id.tvMysDistanceUnit); det = (ImageView) myItemView.findViewById(R.id.DetMedia); myTop = (TextView) myItemView.findViewById(R.id.primaryTitle); myBot = (TextView) myItemView.findViewById(R.id.subTitle); shopLogo = (ImageView) myItemView.findViewById(R.id.shopLogo); shopName = (TextView) myItemView.findViewById(R.id.shopName); : : : : fabDirections = (FloatingActionButton) myItemView.findViewById(R.id.fabDirections); : : : } } class MyTapListener implements View.OnClickListener { final String LOG_TAG = "MyTapListener"; @Override public void onClick(View myItemView) { CardView cardFront = (CardView) myItemView.findViewById(R.id.cvMyet); CardView cardBack = (CardView) myItemView.findViewById(R.id.cvMyetBack); RelativeLayout llMyetBack = (RelativeLayout) myItemView.findViewById(R.id.rlMyetBack); RelativeLayout llMyetFront = (RelativeLayout) myItemView.findViewById(R.id.rlMyetFront); /* Some layout animations here when the user clicks on a CardView */ : : : } } class FABToolbarListener implements View.OnClickListener { /* FAB listener */ : : : } // of class FABToolbarListener class MyMediaListener implements View.OnLongClickListener { @Override public boolean onLongClick(View clickedPic) { int id = clickedPic.getId(); Context context = clickedPic.getContext(); String filename = (String) clickedPic.getTag(id); String shopName = (String) clickedPic.getTag(R.id.action_show_website); showOriginalImage(context, picFilename, shopName); return false; } private void showOriginalImage(Context context, String filename, String shopName) { Intent fullMyetIntent = new Intent(context, ZoomerActivity.class); fullDIntent.putExtra(MyContract.D_PREFIX, filename); fullDIntent.putExtra(MyContract.D_PICKED, shopName); context.startActivity(fullDIntent); } // of showOriginalImage() } 输出

我在这里缺少任何CardView - CardView - ImageView关系或怪癖或专家技巧吗？

请告诉我您需要检查的其他代码。

非常感谢！