内存泄漏表现自己,因为每次在Fragment中调用onCreateView时,新视图都会膨胀.

public class SectionFragment extends Fragment {

    private ImageView imgvw;
    private TextView headerTxvw;
    private TextView bodyTxvw;

    public int[][] content;        
    protected int pageIdx;

    public SectionFragment(int idx,int[][] content ){
        super();
        pageIdx = idx;
        this.content = content;
    }

    protected int getPageIdx() {
        return pageIdx;
    }

    protected Drawable getImageDrawable() {
        return getResources().getDrawable( content[pageIdx][0] );
    }

    protected String getHeaderText() {
        return getResources().getString( content[pageIdx][1] );
    }

    protected String getSubeaderText() {
        return getResources().getString( content[pageIdx][2] );
    }

    protected void loadView( View vw ) {
        imgvw = (ImageView)vw.findViewById( R.id.top_img );
        headerTxvw = (TextView)vw.findViewById( R.id.header_txt );
        bodyTxvw = (TextView)vw.findViewById( R.id.body_txt );

        imgvw.setImageDrawable( getImageDrawable() );
        headerTxvw.setText( getHeaderText() );
        bodyTxvw.setText( getSubeaderText() );
    }

    @Override
    public View onCreateView(LayoutInflater inflater,ViewGroup container,Bundle savedInstanceState) {
        View vw = inflater.inflate( R.layout.help_fragment,null );
        loadView( vw );
        return vw;
    }
}

我还是Fragments的新手,并不是原始编码工作的一部分,所以我不确定我的解决方案是否正确,但它类似于我在List活动中多次实现的视图持有者模式.我真的很感激有关以下实施的任何反馈,所以我会更加放心,这是正确的.

public class SectionFragment extends Fragment {

static private class ViewHolder {
    ImageView imgvw;
    TextView headerTxvw;
    TextView bodyTxvw;
}

public int[][] _content;
protected int _pageIdx;

public SectionFragment( int idx,int[][] content ){
    super();
    _pageIdx = idx;
    _content = content;
}

protected int getPageIdx() {
    return _pageIdx;
}

protected Drawable getImageDrawable() {
    return getResources().getDrawable( _content[_pageIdx][0] );
}

protected String getHeaderText() {
    return getResources().getString( _content[_pageIdx][1] );
}

protected String getSubeaderText() {
    return getResources().getString( _content[_pageIdx][2] );
}

protected void loadView( View vw ) {

    _holder.imgvw.setImageDrawable( getImageDrawable() );
    _holder.headerTxvw.setText( getHeaderText() );
    _holder.bodyTxvw.setText( getSubeaderText() );
}

private View _vw;
private ViewHolder _holder;

@Override
public View onCreateView(LayoutInflater inflater,Bundle savedInstanceState) {
    if ( _vw == null ) {
        _vw = inflater.inflate( R.layout.help_fragment,null );

        _holder = new ViewHolder();
        _holder.imgvw = (ImageView)_vw.findViewById( R.id.top_img );
        _holder.headerTxvw = (TextView)_vw.findViewById( R.id.header_txt );
        _holder.bodyTxvw = (TextView)_vw.findViewById( R.id.body_txt );
        _vw.setTag( _holder );
    } else {
        ViewParent oldparent = (ViewParent)_vw.getParent();
        if ( oldparent != container ) {
            ((ViewGroup)oldparent).removeView( _vw );
        }
        _holder = (ViewHolder)_vw.getTag();
    }
    loadView( _vw );
    return _vw;
}
}

我没有包含与此代码相关的其他类,特别是FragmentActivity和FragmentPagerAdapter,因为它们似乎正确实现,但如果请求我也可以包含它们.