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僵硬的ListView

2024-11-02 00:24:39   210人阅读

不可以滚动的ListView，解决在ScrollView中需要使用Listview的问题
标签： Android

[1].[文件] RigidListView.java ~ 4KB    下载(10) 跳至 [1]

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packagecom.phodev.andtools.widget;
 
importandroid.content.Context;
importandroid.content.res.Resources.NotFoundException;
importandroid.database.DataSetObserver;
importandroid.graphics.drawable.Drawable;
importandroid.util.AttributeSet;
importandroid.view.View;
importandroid.view.View.OnClickListener;
importandroid.widget.BaseAdapter;
importandroid.widget.ImageView;
importandroid.widget.LinearLayout;
importandroid.widget.ListAdapter;
 
/**
 * LinearLayout模仿ListView，解决ListView在ScrollView中的不兼容问题
 *
 * @author skg
 *
 */
publicclass RigidListView extendsLinearLayout implementsOnClickListener {
 
    privateBaseAdapter mAdapter;
    privateOnItemClickListener onItemClickListener;
    privateDrawable dividerDrawable;
    privateint dividerResId = android.R.drawable.divider_horizontal_dim_dark;
    privateint itemSelectorDrawableResId = android.R.drawable.list_selector_background;
 
    /**
     * 绑定布局
     */
    privatevoid bindLinearLayout() {
        removeAllChild();
        intcount = mAdapter.getCount();
        for(inti = 0; i < count; i++) {
            View v = mAdapter.getView(i, null,null);
            v.setLayoutParams(newLayoutParams(LayoutParams.FILL_PARENT,
                    LayoutParams.FILL_PARENT));
            //
            LinearLayout itemContainer = newLinearLayout(getContext());
            itemContainer.setLayoutParams(newLayoutParams(
                    LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT));
            // 添加Item的View
            itemContainer.addView(v);
            // 设置Divider
            itemContainer.setBackgroundResource(itemSelectorDrawableResId);
 
            itemContainer.setOrientation(LinearLayout.VERTICAL);
            itemContainer.setId(i);
 
            itemContainer.setClickable(true);
            if(onItemClickListener != null) {
                itemContainer.setOnClickListener(this);
            }
 
            itemContainer.setFocusable(true);
 
            Drawable divider = getDivider();
            if(divider != null) {
                ImageView line = newImageView(getContext());
                line.setBackgroundDrawable(dividerDrawable);
                itemContainer.addView(line);
            }
 
            addView(itemContainer, i);
        }
    }
 
    publicRigidListView(Context context) {
        super(context);
        init(context);
    }
 
    publicRigidListView(Context context, AttributeSet attrs) {
        super(context, attrs);
        init(context);
    }
 
    privatevoid init(Context context) {
        this.setOrientation(LinearLayout.VERTICAL);
    }
 
    /**
     * 不设置的话使用默认的,0表示不使用任何Divider
     *
     * @param resId
     */
    publicvoid setDivider(intresId) {
        dividerResId = resId;
    }
 
    publicvoid setItemSelector(intresId) {
        itemSelectorDrawableResId = resId;
    }
 
    privateDrawable getDivider() {
        if(dividerDrawable == null&& dividerResId != 0) {
            try{
                dividerDrawable = getContext().getResources().getDrawable(
                        dividerResId);
            }catch(NotFoundException e) {
                e.printStackTrace();
            }
        }
        returndividerDrawable;
    }
 
    /**
     * 获取Adapter
     *
     * @return adapter
     */
    publicListAdapter getAdpater() {
        returnmAdapter;
    }
 
    /**
     * 设置数据
     *
     * @param adpater
     */
    publicvoid setAdapter(BaseAdapter adpater) {
        mAdapter = adpater;
        mAdapter.registerDataSetObserver(dataSetObserver);
        bindLinearLayout();
    }
 
    /**
     * 设置点击事件,OnItemClickListener不同于ListView的监听，这个监听必须在setAdapter之前才有效
     *
     * @param onItemClickListener
     */
    publicvoid setOnItemClickListener(OnItemClickListener onItemClickListener) {
        this.onItemClickListener = onItemClickListener;
    }
 
    publicinterface OnItemClickListener {
        publicvoid onItemClick(View view, ListAdapter adpater, intposition);
    }
 
    @Override
    publicvoid onClick(View v) {
        if(onItemClickListener != null) {
            onItemClickListener.onItemClick(v, mAdapter, v.getId());
        }
    }
 
    privateDataSetObserver dataSetObserver = newRigidDataSetObserver();
 
    publicclass RigidDataSetObserver extendsDataSetObserver {
 
        @Override
        publicvoid onChanged() {
            refreshUI();
        }
 
        @Override
        publicvoid onInvalidated() {
            refreshUI();
        }
 
    }
 
    /**
     * 刷新UI
     */
    privatevoid refreshUI() {
        bindLinearLayout();
 
    }
 
    privatevoid removeAllChild() {
        if(this.getChildCount() > 0) {
            removeAllViews();
 
        }
    }
}

僵硬的ListView


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