误差在图像URL的GridView

问题描述

林新到Android ..

IM具有图像URL面临网格布局的一个问题。

我的code ..

 公共类的行为扩展活动{
    静态字符串uri1 =htt​​ps://i3.ytimg.com/vi/bQaWsVQSLdY/default.jpg;
    静态字符串uri2 =htt​​ps://i4.ytimg.com/vi/cJQCniWQdno/mqdefault.jpg;
    静态字符串uri3 =htt​​ps://i1.ytimg.com/vi/D8dA4pE5hEY/mqdefault.jpg;
    公共静态的String [] =网址{uri1，uri2，uri3};
    公共位图位图;    @覆盖
    公共无效的onCreate（捆绑savedInstanceState）{
        super.onCreate（savedInstanceState）;
        的setContentView（R.layout.main）;
        GridView控件GRD =（GridView控件）findViewById（R.id.gridView1）;
        grd.setAdapter（新ImageAdapter（本））;
        grd.setOnItemClickListener（新OnItemClickListener（）{
            公共无效onItemClick（适配器视图＆LT;＆GT;母公司，视图V，INT POS机，
                    长ID）{
                Toast.makeText（getBaseContext（），PIC+（POS + 1）+选择，
                        Toast.LENGTH_SHORT）.show（）;
            }
        }）;
    }    公共类ImageAdapter延伸BaseAdapter {
        私人上下文的背景下;
        私人诠释itemBackground;        ImageAdapter（上下文C）{
            上下文= C;
            TypedArray A = obtainStyledAttributes（R.styleable.Gallery1）;
            itemBackground = a.getResourceId（
                    R.styleable.Gallery1_android_galleryItemBackground，0）;
            a.recycle（）;
        }        公众诠释的getCount（）{
            返回urls.length;
        }        公共对象的getItem（INT POS）{
            返回POS;
        }        众长getItemId（INT POS）{
            返回POS;
        }        公共查看getView（INT POS，查看简历的ViewGroup以及VG）{
            位图位图= DownloadImage（网址[POS]）;
            ImageView的ImageView的=新ImageView的（上下文）;
            imageview.setImageBitmap（位图）;
            返回简历;
        }        私人位图DownloadImage（字符串URL）{
            最后弦乐URL1 =网址;
            新的Thread（）{
                公共无效的run（）{
                    在的InputStream = NULL;
                    消息味精= Message.obtain（）;
                    msg.what = 1;
                    尝试{
                        在= OpenHttpConnection（URL1）;
                        位图位图= BitmapFactory.de codeStream（中）;
                        束B =新包（）;
                        b.putParcelable（位图，位图）;
                        msg.setData（二）;
                        附寄（）;
                    }赶上（IOException异常E1）{
                        // TODO自动生成catch块
                        e1.printStackTrace（）;
                    }
                }
            }。开始（）;
            返回位图;
        }        私人的InputStream OpenHttpConnection（字符串urlString）
                抛出IOException
            在的InputStream = NULL;
            INT响应= -1;
            网址URL =新的URL（urlString）;
            康涅狄格州的URLConnection = url.openConnection（）;
            如果（！（康涅狄格州的instanceof HttpURLConnection类））
                抛出新IOException异常（不是一个HTTP连接）;
            尝试{
                HttpURLConnection的httpConn =（HttpURLConnection类）美国康涅狄格州;
                httpConn.setAllowUserInteraction（假）;
                httpConn.setInstanceFollowRedirects（真）;
                httpConn.setRequestMethod（GET）;
                httpConn.connect（）;
                响应= httpConn.getResponse code（）;
                如果（响应== HttpURLConnection.HTTP_OK）{
                    在= httpConn.getInputStream（）;
                }
            }赶上（例外前）{
                抛出新IOException异常（错误连接）;
            }
            返回;
        }
    }
}
 

logcat的

解决方案

I recommend to you to read this : http://xjaphx.wordpress.com/2011/06/12/custom-grid-view-of-applications/

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