java - 卡在onCreate()中创建的类的Java.lang.VerifyError

我很难解决这个可怕的VerifyError，并且找不到解决方案。

我见过一些像this one或this one的线程，但是我没有使用第三方库，也没有像建议的那样调用String.isEmpty()。

我只是将supportv4和v7用于这些导入:

import android.support.v7.app.ActionBarActivity;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentTransaction;
import android.support.v4.app.LoaderManager;
import android.support.v4.app.TaskStackBuilder;
import android.support.v4.content.Loader;

我在MapActivity中的onCreate看起来像这样:

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

    if (mDataController == null) {
        mDataController = new DataController();
    }

    initData();

    FragmentTransaction fragmentTransaction = mFragmentManager.beginTransaction();
    fragmentTransaction.replace(R.id.container, mMapViewFragment, "MapViewFragment");
    fragmentTransaction.commit();
}

initData的定义如下:

public void initData() {

    mListLines = Arrays.asList("ALL",
                  DataController.LINE_NAME_TRAM_1,
                  DataController.LINE_NAME_TRAM_2,
                  DataController.LINE_NAME_BUS_1);

    List<ArrayList<StationItem>> lAllStationsTemp = Arrays.asList(
                                        DataController.mTram1Stations,
                                        DataController.mTram2Stations,
                                        DataController.mBus1Stations);

    mAllStationsTramsBus = new ArrayList<StationItem>(DataController.mTram1Stations);
    for (int i=0; i<lAllStationsTemp.size(); i++) {
        List<StationItem> lCurrentLineStations = lAllStationsTemp.get(i);
        for (final StationItem lStationToInsert : lCurrentLineStations)
        {
            for (int j=0; j<mAllStationsTramsBus.size(); j++) {
                StationItem lCurrentStation = mAllStationsTramsBus.get(j);
                if (lStationToInsert.mStationName.equals(lCurrentStation.mStationName)) {
                    mAllStationsTramsBus.remove(j);
                }
            }
            mAllStationsTramsBus.add(lStationToInsert);
        }
    }

    //Sort results by station name property of object StationItem

    Collections.sort(mAllStationsTramsBus);

    mAllStations = new ArrayList<ArrayList<StationItem>>(Arrays.asList(
                    mAllStationsTramsBus,
                    mDataController.getStationListFromList(DataController.mTram1Stations),
                    mDataController.getStationListFromList(DataController.mTram2Stations),
                    mDataController.getStationListFromList(DataController.mBus1Stations)
                    ));


    List<ArrayList<StationItem>> lAllStationsTemp2 = Arrays.asList(
            DataController.mTram1Stations,
            DataController.mTram2Stations
            );


    mAllStationsTrams = new ArrayList<StationItem>(DataController.mTram1Stations);
    for (int i=0; i<lAllStationsTemp2.size(); i++) {
        List<StationItem> lCurrentLineStations = lAllStationsTemp2.get(i);
        for (final StationItem lStationToInsert : lCurrentLineStations)
        {
            for (int j=0; j<mAllStationsTrams.size(); j++) {
                StationItem lCurrentStation = mAllStationsTrams.get(j);
                if (lStationToInsert.mStationName.equals(lCurrentStation.mStationName)) {
                    mAllStationsTrams.remove(j);
                }
            }
            mAllStationsTrams.add(lStationToInsert);
        }
    }

    //Sort results by station name property of object StationItem

    Collections.sort(mAllStationsTrams);

    mMapViewFragment.mAllStations = mAllStations;
}

在这里，我有3条警告:类型安全:为varargs参数创建了arrayList的通用数组。一个用于lAllStationsTemp，第二个用于mAllStation，最后一个用于lAllStationsTemp2。我不确定这个警告是否会改变我的问题，但是就在这里。

我的DataController包含以下内容:

import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;

import com.google.android.gms.maps.model.LatLng;
import com.google.android.gms.maps.model.PolylineOptions;

import android.graphics.Color;

public class DataController {

    public static final String STATION_1 = "Station 1";
    public static final String STATION_2 = "Station 2";

    public static final String LINE_NAME_TRAM_1 = "T1";
    public static final String LINE_NAME_TRAM_2 = "T2";

    public static final String LINE_NAME_BUS_1 = "B1";

    protected static ArrayList<StationItem>  mTram1Stations;
    protected static ArrayList<StationItem>  mTram2Stations;

    protected static ArrayList<StationItem>  mBus1Stations;

    protected static ArrayList<LatLng> mTram1Locations;
    protected static ArrayList<LatLng> mTram2Locations;

    public DataController() {

            ArrayList<String> lConnection_S1 = new ArrayList<String>(Arrays.asList("T1"));
            ArrayList<String> lConnection_S2 = new ArrayList<String>(Arrays.asList("T1", "T2"));

            mTram1Stations = new ArrayList<StationItem>(Arrays.asList(
            new StationItem("Station 1","T1",0,0,lConnection_S1),
            new StationItem("Station 2","T1",0,0,lConnection_S2)
            ));

            mTram2Stations = new ArrayList<StationItem>(Arrays.asList(
            new StationItem("Station 1","T2",0,0,lConnection_S1),
            new StationItem("Station 2","T2",0,0,lConnection_S2)
            ));

            mBus1Stations = new ArrayList<StationItem>(Arrays.asList(
            new StationItem("Station 1","B1",0,0,lConnection_S1),
            new StationItem("Station 2","B1",0,0,lConnection_S2)
            ));

            mTram1Locations = new ArrayList<LatLng>(Arrays.asList(
            new LatLng(40.190, 3.20),
            new LatLng(40.191, 3.21),
            new LatLng(40.192, 3.22)
            ));

            mTram2Locations = new ArrayList<LatLng>(Arrays.asList(
            new LatLng(40.190, 3.20),
            new LatLng(40.191, 3.21),
            new LatLng(40.192, 3.22)
            ));
    }

    public static ArrayList<StationItem> getmTram1Stations() {
            return mTram1Stations;
    }

    public static void setmTram1Stations(ArrayList<StationItem> mTram1Stations) {
            DataController.mTram1Stations = mTram1Stations;
    }

    public static ArrayList<StationItem> getmTram2Stations() {
            return mTram2Stations;
    }

    public static void setmTram2Stations(ArrayList<StationItem> mTram2Stations) {
            DataController.mTram2Stations = mTram2Stations;
    }

    public static ArrayList<StationItem> getmBus1Stations() {
            return mBus1Stations;
    }

    public static void setmBus1Stations(ArrayList<StationItem> mBus1Stations) {
            DataController.mBus1Stations = mBus1Stations;
    }

    public static PolylineOptions createPolylinefromArray(ArrayList<LatLng> pArray, String pLineName, int pZIndex) {
    if (pArray.size() > 1) {

        PolylineOptions lPolyline = new PolylineOptions();

        for (int i = 0; i < pArray.size(); i++) {
            lPolyline.add(pArray.get(i));
        }

        lPolyline.color(DataController.getColorForLine(pLineName));

        if (pLineName.equals("1")) {
            lPolyline.width(12);
        } else {
            lPolyline.width(7);
        }
        lPolyline.zIndex(pZIndex);

        return lPolyline;
    }
    return null;
    }

    public ArrayList<StationItem> getStationListFromList(List<StationItem> pStationArray) {

        ArrayList<StationItem> lResult = new ArrayList<StationItem>();

        for (int i=0; i<pStationArray.size(); i++) {
            if (i == 0) {
                lResult.add(pStationArray.get(i));
            } else {
                StationItem lStation1 = pStationArray.get(i-1);
                StationItem lStation2 = pStationArray.get(i);
                if (!lStation1.mStationName.equals(lStation2.mStationName)) {
                    lResult.add(pStationArray.get(i));
                }
            }
        }
        return lResult;
    }

    public static final int getColorForLine(String pLine) {
        if (pLine.equals("1")) {
            return Color.rgb(65, 117, 189);
        } else {
            return Color.rgb(169, 169, 169);
        }
    }

    public static final int getStationDrawableForLine(String pLine) {

        if (pLine.equals("1")) {
            return R.drawable.station_1;
        } else {
            return R.drawable.station;
        }
    }
}

我的堆栈跟踪如下:

java.lang.VerifyError: com.test.DataController
at com.test.MapActivity.onCreate(MapActivity.java:426)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2627)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2679)
at android.app.ActivityThread.access$2300(ActivityThread.java:125)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2033)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:123)
at android.app.ActivityThread.main(ActivityThread.java:4627)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:521)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:876)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:634)
at dalvik.system.NativeStart.main(Native Method)

并且确保我提供了所有详细信息，这是我的构建路径的屏幕截图:


任何建议将不胜感激。在Android 2.2上会发生此错误。
谢谢你的帮助。

最佳答案

好的，我只是找到了此错误的原因。几周后，我不得不要求找到它:)

我主要关注发生此错误的常见情况，但我的代码没有错。
我没有看到以下警告:“VFY:任意拒绝大型方法(regs = 93 count = 23019)”。

看来我的构造函数中声明了太多变量，导致内存管理问题as explained here。

我的构造函数是这样的:

public DataController() {

    ArrayList<String> lConnection_S1 = new ArrayList<String>(Arrays.asList("T1"));
    ArrayList<String> lConnection_S2 = new ArrayList<String>(Arrays.asList("T1", "T2"));
    ...
    ArrayList<String> lConnection_S2034 = new ArrayList<String>(Arrays.asList("T1", "T2"));

    mTram1Stations = new ArrayList<StationItem>(Arrays.asList(
        new StationItem("Station 1","T1",0,0,lConnection_S1),
        new StationItem("Station 2","T1",0,0,lConnection_S2)
    ));

    mBus1Stations = new ArrayList<StationItem>(Arrays.asList(
        new StationItem("Station 1","B1",0,0,lConnection_S1),
        new StationItem("Station 2","B1",0,0,lConnection_S2)
    ));

    mTram1Locations = new ArrayList<LatLng>(Arrays.asList(
        new LatLng(40.190, 3.20),
        new LatLng(40.191, 3.21),
        new LatLng(40.192, 3.22)
    ));
}

我没有写所有变量，因为它不可读，但是如您所见，它升至lConnection_S2034，并在Android 2.2上引发VerifyError。

我要解决的问题是将这些局部变量声明为实例变量，并在构造函数中将其初始化，如下所示:

public class DataController {

    ArrayList<String> mConnection_S1;
    ArrayList<String> mConnection_S2;
    ...
    ArrayList<String> mConnection_S2034;

    public DataController() {

        mConnection_S1 = new ArrayList<String>(Arrays.asList("T1"));
        mConnection_S2 = new ArrayList<String>(Arrays.asList("T1", "T2"));
        ...
        mConnection_S2034 = new ArrayList<String>(Arrays.asList("T1", "T2"));
    }
}