java.lang.OutOfMemoryError 与 ArrayList 和 RecyclerView

Question

在此先感谢您的帮助。我正在尝试将 ArrayList 放入 RecyclerView，但出现此错误：

java.lang.OutOfMemoryError: Failed to allocate a 7224906 byte allocation with 4194304 free bytes and 4MB until OOM at java.lang.AbstractStringBuilder.enlargeBuffer(AbstractStringBuilder.java:95) at java.lang.AbstractStringBuilder.append0(AbstractStringBuilder.java:125) at java.lang.StringBuffer.append(StringBuffer.java:278) at java.io.StringWriter.write(StringWriter.java:123) at com.android.internal.util.FastPrintWriter.flushLocked(FastPrintWriter.java:358) at com.android.internal.util.FastPrintWriter.appendLocked(FastPrintWriter.java:303) at com.android.internal.util.FastPrintWriter.write(FastPrintWriter.java:625) at com.android.internal.util.FastPrintWriter.append(FastPrintWriter.java:658) at java.io.PrintWriter.append(PrintWriter.java:691) at java.io.PrintWriter.append(PrintWriter.java:31) at java.lang.Throwable.printStackTrace(Throwable.java:324) at java.lang.Throwable.printStackTrace(Throwable.java:300) at android.util.Log.getStackTraceString(Log.java:335) at com.android.internal.os.RuntimeInit.Clog_e(RuntimeInit.java:59) at com.android.internal.os.RuntimeInit.access0(RuntimeInit.java:43) at com.android.internal.os.RuntimeInit$UncaughtHandler.uncaughtException(RuntimeInit.java:85) at java.lang.ThreadGroup.uncaughtException(ThreadGroup.java:693) at java.lang.ThreadGroup.uncaughtException(ThreadGroup.java:690)

我的代码（有问题的部分）是这样的：

public class TabFragment5 extends Fragment {
@Nullable
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    RecyclerView rv = (RecyclerView) inflater.inflate(
            R.layout.fragment_pat_list, container, false);
    setupRecyclerView(rv);
    return rv;
}

private void setupRecyclerView(RecyclerView recyclerView) {
    recyclerView.setLayoutManager(new LinearLayoutManager(recyclerView.getContext()));
    recyclerView.setAdapter(new SimpleStringRecyclerViewAdapter(getActivity(),
            getList(Infos.sPatGrandi)));
}


private ArrayList<String> getList(String[] array) {
    ArrayList<String>list = new ArrayList<String>getList(Infos.sPatGrandi));
    while (list.size()<40){
        list.addAll(getList(Infos.sPatGrandi));
    }
    return list;
}

我只在这部分代码中遇到这个错误，谁能解释一下原因？非常感谢，祝您玩得愉快！

Answer 1

你在方法getList中有一个递归调用，因为这个递归调用分配了这么多对象。这正在生成您的 OutOfMemoryException.

编辑示例:

List<String> listOfData = new ArrayList<>();
SimpleStringRecyclerViewAdapter adapter = new SimpleStringRecyclerView(context, listOfData);
recyclerView.setAdapter(adapter);
//Now add more content to the list
listOfData.add("new item");
listOfData.add("another item");
//This notifies the adapter and the list that the content has changed
adapter.notifyDataSetChanged();

java.lang.OutOfMemoryError 与 ArrayList 和 RecyclerView

java.lang.OutOfMemoryError with ArrayList and RecyclerView

java

android

arraylist

out-of-memory

android-recyclerview