Question

如何从以下代码解决java.lang.StackOverflowError？

我的代码是： -

public class main extends Activity implements OnItemClickListener {
      private static final String ACTION_ADW_PICK_ICON="org.adw.launcher.icons.ACTION_PICK_ICON";
      private boolean mPickerMode=false;
  /** Called when the activity is first created. */
  public void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
      int iconSize=getResources().getDimensionPixelSize(android.R.dimen.app_icon_size);
      setContentView(R.layout.main);
      GridView g=(GridView) findViewById(R.id.icon_grid);
      g.setNumColumns(GridView.AUTO_FIT);
      g.setColumnWidth(iconSize);
      g.setStretchMode(GridView.STRETCH_SPACING_UNIFORM);
      g.setVerticalSpacing(iconSize/3);
      g.setOnItemClickListener(this);
      IconsAdapter adapter=new IconsAdapter(this,iconSize);
      g.setAdapter(adapter);
      if(getIntent().getAction().equals(ACTION_ADW_PICK_ICON)){
        mPickerMode=true;
      }
  }
  public void onItemClick(AdapterView<?> adapter, View view, int position, long id) {
    if(mPickerMode){
        Intent intent=new Intent();
        Bitmap bitmap=null;
        try{
            bitmap=(Bitmap) adapter.getAdapter().getItem(position);
        }catch (Exception e) {
        }
        if(bitmap!=null){
            intent.putExtra("icon",bitmap);
            setResult(RESULT_OK, intent);
        }else{
            setResult(RESULT_CANCELED, intent);
        }
        finish();
    }
  }
  private class IconsAdapter extends BaseAdapter{
    private Context mContext;
    private int mIconSize;
    public IconsAdapter(Context mContext, int iconsize) {
        super();
        this.mContext = mContext;
        this.mIconSize = iconsize;
        loadIcons();
    }

    @Override
    public int getCount() {
        return mThumbs.size();
    }

    @Override
    public Object getItem(int position) {
        //return mThumbIds[position];
        return ((BitmapDrawable)mContext.getResources().getDrawable(mThumbs.get(position))).getBitmap();
    }

    @Override
    public long getItemId(int position) {
        return position;
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        ImageView imageView;
        if (convertView == null) {
            imageView = new ImageView(mContext);
            imageView.setLayoutParams(new GridView.LayoutParams(mIconSize, mIconSize));
        } else {
            imageView = (ImageView) convertView;
        }
        imageView.setImageResource(mThumbs.get(position));
        return imageView;
    }

    private ArrayList<Integer> mThumbs;
    ////////////////////////////////////////////////
    private void loadIcons() {
        mThumbs = new ArrayList<Integer>();

        final Resources resources = getResources();
        final String packageName = getApplication().getPackageName();

        addIcons(resources, packageName, R.array.icon_pack);
    }
    private void addIcons(Resources resources, String packageName, int list) {
        final String[] extras = resources.getStringArray(list);
        for (String extra : extras) {
            int res = resources.getIdentifier(extra, "drawable", packageName);
            if (res != 0) {
                final int thumbRes = resources.getIdentifier(extra,"drawable", packageName);
                if (thumbRes != 0) {
                    mThumbs.add(thumbRes);
                }
            }
        }
    }
}

SatckTrace是： -

08-24 17:10:50.105: INFO/dalvikvm(633): threadid=1: stack overflow on call to Landroid/graphics/drawable/DrawableContainer$DrawableContainerState;.getChildCount:I
08-24 17:10:50.105: INFO/dalvikvm(633):   method requires 8+20+0=28 bytes, fp is 0x418fa30c (12 left)
08-24 17:10:50.115: INFO/dalvikvm(633):   expanding stack end (0x418fa300 to 0x418fa000)
08-24 17:10:50.115: INFO/dalvikvm(633): Shrank stack (to 0x418fa300, curFrame is 0x418fa4b0)
08-24 17:10:50.155: DEBUG/AndroidRuntime(633): Shutting down VM
08-24 17:10:50.155: WARN/dalvikvm(633): threadid=1: thread exiting with uncaught exception (group=0x40015560)
08-24 17:10:50.405: DEBUG/dalvikvm(633): GC_CONCURRENT freed 229K, 46% free 3170K/5831K, external 1903K/2179K, paused 7ms+6ms
08-24 17:10:50.485: ERROR/AndroidRuntime(633): FATAL EXCEPTION: main
08-24 17:10:50.485: ERROR/AndroidRuntime(633): java.lang.StackOverflowError
08-24 17:10:50.485: ERROR/AndroidRuntime(633):     at android.graphics.drawable.StateListDrawable$StateListState.indexOfStateSet(StateListDrawable.java:274)
08-24 17:10:50.485: ERROR/AndroidRuntime(633):     at android.graphics.drawable.StateListDrawable$StateListState.access$000(StateListDrawable.java:253)
08-24 17:10:50.485: ERROR/AndroidRuntime(633):     at android.graphics.drawable.StateListDrawable.onStateChange(StateListDrawable.java:95)
08-24 17:10:50.485: ERROR/AndroidRuntime(633):     at android.graphics.drawable.StateListDrawable.<init>(StateListDrawable.java:306)
08-24 17:10:50.485: ERROR/AndroidRuntime(633):     at android.graphics.drawable.StateListDrawable.<init>(StateListDrawable.java:70)
08-24 17:10:50.485: ERROR/AndroidRuntime(633):     at android.graphics.drawable.Drawable.createFromXmlInner(Drawable.java:749)
08-24 17:10:50.485: ERROR/AndroidRuntime(633):     at android.graphics.drawable.Drawable.createFromXml(Drawable.java:728)
08-24 17:10:50.485: ERROR/AndroidRuntime(633):     at android.content.res.Resources.loadDrawable(Resources.java:1694)
08-24 17:10:50.485: ERROR/AndroidRuntime(633):     at android.content.res.Resources.getDrawable(Resources.java:581)
08-24 17:10:50.485: ERROR/AndroidRuntime(633):     at android.graphics.drawable.StateListDrawable.inflate(StateListDrawable.java:162)
08-24 17:10:50.485: ERROR/AndroidRuntime(633):     at android.graphics.drawable.Drawable.createFromXmlInner(Drawable.java:787)
08-24 17:10:50.485: ERROR/AndroidRuntime(633):     at android.graphics.drawable.Drawable.createFromXml(Drawable.java:728)
08-24 17:10:50.485: ERROR/AndroidRuntime(633):     at android.content.res.Resources.loadDrawable(Resources.java:1694)
08-24 17:10:50.485: ERROR/AndroidRuntime(633):     at android.content.res.Resources.getDrawable(Resources.java:581)
08-24 17:10:50.485: ERROR/AndroidRuntime(633):     at android.graphics.drawable.StateListDrawable.inflate(StateListDrawable.java:162)
08-24 17:10:50.485: ERROR/AndroidRuntime(633):     at android.graphics.drawable.Drawable.createFromXmlInner(Drawable.java:787)
08-24 17:10:50.485: ERROR/AndroidRuntime(633):     at android.graphics.drawable.Drawable.createFromXml(Drawable.java:728)
08-24 17:10:50.485: ERROR/AndroidRuntime(633):     at android.content.res.Resources.loadDrawable(Resources.java:1694)
08-24 17:10:50.485: ERROR/AndroidRuntime(633):     at android.content.res.Resources.getDrawable(Resources.java:581)
08-24 17:10:50.485: ERROR/AndroidRuntime(633):     at android.graphics.drawable.StateListDrawable.inflate(StateListDrawable.java:162)
08-24 17:10:50.485: ERROR/AndroidRuntime(633):     at android.graphics.drawable.Drawable.createFromXmlInner(Drawable.java:787)
08-24 17:10:50.485: ERROR/AndroidRuntime(633):     at android.graphics.drawable.Drawable.createFromXml(Drawable.java:728)
08-24 17:10:50.485: ERROR/AndroidRuntime(633):     at android.content.res.Resources.loadDrawable(Resources.java:1694)
08-24 17:10:50.485: ERROR/AndroidRuntime(633):     at android.content.res.Resources.getDrawable(Resources.java:581)
08-24 17:10:50.485: ERROR/AndroidRuntime(633):     at android.graphics.drawable.StateListDrawable.inflate(StateListDrawable.java:162)
08-24 17:10:50.485: ERROR/AndroidRuntime(633):     at android.graphics.drawable.Drawable.createFromXmlInner(Drawable.java:787)
08-24 17:10:50.485: ERROR/AndroidRuntime(633):     at android.graphics.drawable.Drawable.createFromXml(Drawable.java:728)
08-24 17:10:50.485: ERROR/AndroidRuntime(633):     at android.content.res.Resources.loadDrawable(Resources.java:1694)
08-24 17:10:50.485: ERROR/AndroidRuntime(633):     at android.content.res.Resources.getDrawable(Resources.java:581)
08-24 17:10:50.485: ERROR/AndroidRuntime(633):     at android.graphics.drawable.StateListDrawable.inflate(StateListDrawable.java:162)
08-24 17:10:50.485: ERROR/AndroidRuntime(633):     at android.graphics.drawable.Drawable.createFromXmlInner(Drawable.java:787)
08-24 17:10:50.485: ERROR/AndroidRuntime(633):     at android.graphics.drawable.Drawable.createFromXml(Drawable.java:728)
08-24 17:10:50.485: ERROR/AndroidRuntime(633):     at android.content.res.Resources.loadDrawable(Resources.java:1694)
08-24 17:10:50.485: ERROR/AndroidRuntime(633):     at android.content.res.Resources.getDrawable(Resources.java:581)
08-24 17:10:50.485: ERROR/AndroidRuntime(633):     at android.graphics.drawable.StateListDrawable.inflate(StateListDrawable.java:162)
08-24 17:10:50.485: ERROR/AndroidRuntime(633):     at android.graphics.drawable.Drawable.createFromXmlInner(Drawable.java:787)
08-24 17:10:50.485: ERROR/AndroidRuntime(633):     at android.graphics.drawable.Drawable.createFromXml(Drawable.java:728)
08-24 17:10:50.485: ERROR/AndroidRuntime(633):     at android.content.res.Resources.loadDrawable(Resources.java:1694)
08-24 17:10:50.485: ERROR/AndroidRuntime(633):     at android.content.res.Resources.getDrawable(Resources.java:581)
08-24 17:10:50.485: ERROR/AndroidRuntime(633):     at android.graphics.drawable.StateListDrawable.inflate(StateListDrawable.java:162)
08-24 17:10:50.485: ERROR/AndroidRuntime(633):     at android.graphics.drawable.Drawable.createFromXmlInner(Drawable.java:787)
08-24 17:10:50.485: ERROR/AndroidRuntime(633):     at android.graphics.drawable.Drawable.createFromXml(Drawable.java:728)
08-24 17:10:50.485: ERROR/AndroidRuntime(633):     at android.content.res.Resources.loadDrawable(Resources.java:1694)
08-24 17:10:50.485: ERROR/AndroidRuntime(633):     at android.content.res.Resources.getDrawable(Resources.java:581)
08-24 17:10:50.485: ERROR/AndroidRuntime(633):     at android.graphics.drawable.StateListDrawable.inflate(StateListDrawable.java:162)
08-24 17:10:50.485: ERROR/AndroidRuntime(633):     at android.graphics.drawable.Drawable.createFromXmlInner(Drawable.java:787)
08-24 17:10:50.485: ERROR/AndroidRuntime(633):     at android.graphics.drawable.Drawable.createFromXml(Drawable.java:728)
08-24 17:10:50.485: ERROR/AndroidRuntime(633):     at android.content.res.Resources.loadDrawable(Resources.java:1694)
08-24 17:10:50.485: ERROR/AndroidRuntime(633):     at android.content.res.Resources.getDrawable(Resources.java:581)
08-24 17:10:50.485: ERROR/AndroidRuntime(633):     at android.graphics.drawable.StateListDrawable.inflate(StateListDrawable.java:162)
08-24 17:10:50.485: ERROR/AndroidRuntime(633):     at android.graphics.drawable.Drawable.createFromXmlInner(Drawable.java:787)
08-24 17:10:50.485: ERROR/AndroidRuntime(633):     at android.graphics.drawable.Drawable.createFromXml(Drawable.java:728)
08-24 17:10:50.485: ERROR/AndroidRuntime(633):     at android.content.res.Resources.loadDrawable(Resources.java:1694)
08-24 17:10:50.485: ERROR/AndroidRuntime(633):     at android.content.res.R
08-24 17:10:50.655: WARN/ActivityManager(61):   Force finishing activity org.adw.launcher/.Launcher
08-24 17:10:51.195: WARN/ActivityManager(61): Activity pause timeout for HistoryRecord{40673a60 org.adw.launcher/.Launcher}
08-24 17:10:51.585: WARN/ActivityManager(61): Launch timeout has expired, giving up wake lock!
08-24 17:10:52.615: WARN/InputManagerService(61): Got RemoteException sending setActive(false) notification to pid 589 uid 10039
08-24 17:10:53.015: INFO/Process(633): Sending signal. PID: 633 SIG: 9
08-24 17:10:53.035: INFO/ActivityManager(61): Process android.process.acore (pid 633) has died.
08-24 17:10:53.065: INFO/WindowManager(61): WIN DEATH: Window{406a12d0 org.adw.launcher/org.adw.launcher.Launcher paused=false}
08-24 17:10:57.465: DEBUG/dalvikvm(236): GC_EXPLICIT freed 13K, 51% free 2939K/5895K, external 716K/1038K, paused 80ms
08-24 17:11:02.158: WARN/ActivityManager(61): Activity destroy timeout for HistoryRecord{40673a60 org.adw.launcher/.Launcher}

Answer 1

这看起来像某种无限循环错误，可能在一个或多个drawable中。你有一个引用第二个的drawable，第二个有一个循环引用回到第一个吗？这可能解释了你所看到的异常。如果没有看到你想要加载的drawable，就很难更精确。

如何从下面的代码解决java.lang.StackOverflowError？

1 个答案: