android中如何让listview的内容全部显示出来

 

 

   注意，如果listitem里面有textview的话，就当一行处理进行截取数字。

 

   public static void setListViewHeightBasedOnChildren(ListView listView) {

		// 获取ListView对应的Adapter
		WeiboContentAdapter listAdapter = (WeiboContentAdapter) listView.getAdapter();
		if (listAdapter == null) {
			return;
		}
		
		Paint mPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
		mPaint.setTextAlign(Align.LEFT);

		LinearLayout listItem;
		TextView tvContent;
		int totalHeight = 0;
		int lineCount = 0;
		for (int i = 0, len = listAdapter.getCount(); i < len; i++) { // listAdapter.getCount()返回数据项的数目
			listItem = (LinearLayout)listAdapter.getView(i, null, listView);
			tvContent = (TextView) listItem.findViewById(R.id.tv_weibo_detail_content);
			lineCount = getLineCount(mPaint, ((SpannedString) tvContent.getText()).toString());
			tvContent.measure(0, 0); // 计算子项View 的宽高
			totalHeight += tvContent.getMeasuredHeight()*lineCount + 60; // 统计所有子项的总高度
		}
		ViewGroup.LayoutParams params = listView.getLayoutParams();
		params.height = totalHeight + (listView.getDividerHeight() * (listAdapter.getCount() - 1)) ;
		// listView.getDividerHeight()获取子项间分隔符占用的高度
		// params.height最后得到整个ListView完整显示需要的高度
		listView.setLayoutParams(params);
	}

 

 

private static int getLineCount(Paint mPaint, String content) {
		int index;
		int count = 0;
		while(content.length() > 0){
			index = mPaint.breakText(content, true, ResolutionUtil.getWPx()/2, null);
			content = content.substring(index);
			count++;
		}
		
		return count;
	}

 

 

 

/**
	 * 动态改变listView的高度
	 * @param pull
	 */
	private void setPullLvHeight(ListView pull){
		int totalHeight = 0;  
		for (int i = 0, len = adapter.getCount(); i < len; i++) { //listAdapter.getCount()返回数据项的数目  
		View listItem = adapter.getView(i, null, pull);  
		listItem.measure(0, 0); //计算子项View 的宽高  
		totalHeight += listItem.getMeasuredHeight(); //统计所有子项的总高度  
		}  
		  
		ViewGroup.LayoutParams params = pull.getLayoutParams();  
		params.height = totalHeight + (pull.getDividerHeight() * (pull.getCount() - 1));  
		pull.setLayoutParams(params);  
	}

评论

4 楼 fantao005x 2014-07-08  

粘帖的不错

3 楼 lwh3152 2013-06-19  

213peng 写道

ResolutionUtil.getWPx()这个是什么啊

,我也想问,这个方法是啥,

2 楼 213peng 2012-11-16  

ResolutionUtil.getWPx()这个是什么啊

1 楼 光源之上 2012-07-18  

方法不错，建议能改成适用普遍情况的，WeiboContentAdapter这个不知道是什么。