首页 \ 问答 \ Imageview没有显示所有图像(Imageview not showing all image)

Imageview没有显示所有图像(Imageview not showing all image)

您好我正在使用图库在Android应用程序中显示图像。 我在显示图像时遇到问题。 有些图像显示有些不是。

我的适配器代码如下:

ImageView iv;
            LinearLayout layoutnew = new LinearLayout(getApplicationContext());
            layoutnew.setOrientation(LinearLayout.VERTICAL);

            if (convertView == null)
            {
                iv = new ImageView(ctx);
                iv.setBackgroundDrawable(m_docs_ids[arg0]);
                iv.setScaleType(ImageView.ScaleType.FIT_XY);
                int temp =(int) (height/1.7f);
                int temp_y = (int) ((3*temp)/2.0f);
                iv.setLayoutParams(new LayoutParams( LayoutParams.WRAP_CONTENT,LayoutParams.WRAP_CONTENT ));

            }


 else
            {
                iv = (ImageView) convertView;
            }
            TextView tv = new TextView(ctx);

       //     tv.setText(m_docs.get(arg0).DocPath);
            tv.setTextColor(0xFFFFFFFF);
            tv.setPadding(0, 15, 0, 0);
            tv.setTag(arg0);
            tv.setTextSize(18);
            tv.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT,LayoutParams.WRAP_CONTENT ));
            tv.setGravity(Gravity.CENTER);
            layoutnew.addView(iv);
            layoutnew.addView(tv);

            return layoutnew;

m_docs_id是可绘制类型的列表。 我调试它,发现它正在进入正确的。 画廊显示黑色的图像未显示。

我发现放置在DCIM文件夹中的图片没有显示。 显示所有其他图像


Hello i am showing images in android app using gallery. I am having problem in displaying images. Some images are displayed some are not.

My adapter code is as follows:

ImageView iv;
            LinearLayout layoutnew = new LinearLayout(getApplicationContext());
            layoutnew.setOrientation(LinearLayout.VERTICAL);

            if (convertView == null)
            {
                iv = new ImageView(ctx);
                iv.setBackgroundDrawable(m_docs_ids[arg0]);
                iv.setScaleType(ImageView.ScaleType.FIT_XY);
                int temp =(int) (height/1.7f);
                int temp_y = (int) ((3*temp)/2.0f);
                iv.setLayoutParams(new LayoutParams( LayoutParams.WRAP_CONTENT,LayoutParams.WRAP_CONTENT ));

            }


 else
            {
                iv = (ImageView) convertView;
            }
            TextView tv = new TextView(ctx);

       //     tv.setText(m_docs.get(arg0).DocPath);
            tv.setTextColor(0xFFFFFFFF);
            tv.setPadding(0, 15, 0, 0);
            tv.setTag(arg0);
            tv.setTextSize(18);
            tv.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT,LayoutParams.WRAP_CONTENT ));
            tv.setGravity(Gravity.CENTER);
            layoutnew.addView(iv);
            layoutnew.addView(tv);

            return layoutnew;

m_docs_id is a list of drawable type. i have debug it and found that it is getting correct entry. gallery is showing black for images which are not shown.

I found put that pictures placed in DCIM folders are not shown. all other images are shown


原文:https://stackoverflow.com/questions/26928748
更新时间:2023-07-31 06:07

最满意答案

如果你想获得所有input值,你的html会有一些变化

<input type="text" name="txt" value="Insert name"><br/>
<input type="text" name="txt" value="Insert name"><br/>
<input type="text" name="txt" value="Insert name"><br/>
<input type="text" name="txt" value="Insert name"><br/>
<input type="text" name="txt" value="Insert name"><br/>
<input type="text" name="txt" value="Insert name"><br/>
<input type="text" name="txt" value="Insert name"><br/>
<input type="text" name="txt" value="Insert name"><br/>
<input type="text" name="txt" value="Insert name"><br/>
<input type="text" name="txt" value="Insert name"><br/>
<input type="button" value="Calculate" onclick="Calculate()" />

然后你可以使用像这样的javascript

function Calculate(){
    var inputs = document.getElementsByName("txt");
    for(i=0; i<inputs.length; i++)
    {
       alert(inputs[i].value);
    }
}

getElementsByName()参考

jquery

function Calculate(){  
    $("input[name=txt]").each(function(){
         alert($(this).val());
    });
}

If you want to get all input values, there is a little change with your html

<input type="text" name="txt" value="Insert name"><br/>
<input type="text" name="txt" value="Insert name"><br/>
<input type="text" name="txt" value="Insert name"><br/>
<input type="text" name="txt" value="Insert name"><br/>
<input type="text" name="txt" value="Insert name"><br/>
<input type="text" name="txt" value="Insert name"><br/>
<input type="text" name="txt" value="Insert name"><br/>
<input type="text" name="txt" value="Insert name"><br/>
<input type="text" name="txt" value="Insert name"><br/>
<input type="text" name="txt" value="Insert name"><br/>
<input type="button" value="Calculate" onclick="Calculate()" />

Then you can use javascript like this

function Calculate(){
    var inputs = document.getElementsByName("txt");
    for(i=0; i<inputs.length; i++)
    {
       alert(inputs[i].value);
    }
}

getElementsByName() Reference

With jquery

function Calculate(){  
    $("input[name=txt]").each(function(){
         alert($(this).val());
    });
}

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