真正需要帮助搞清楚为什么一个位图放置在一个不正确的image_view [英] Really need help figuring out why a bitmap is placed on an an image_view incorrectly

问题描述

这个问题已经困扰我好几天了，我想不通为什么地球上正在发生。我有检测用于一个面的方法，如果检测到面部，该方法将绘制一个矩形沿面在画布上。

这部分工作正常。

的问题是，当它显示在我的XML文件中的image_view，将显示在图像视图的最左边中间，在一个盒子里，而不是在与宽度FILL_PARENT中心

我想到了一个可能的解决方法的：设置位图作为bitmapdrawable，但只帆布画位图，这样我就可以得到bitmapdrawable在中间，但周围没有红色框

我评论了我的位图绘制的测试，并把它作为我现在......只显示我的XML中最左边的image_view的。请看一看和帮助！

我贴到引擎收录，因为code是长了一点（我也是用视图鳍内的线性布局）。

方法：

http://pastebin.com/KQ5Pmx45

XML：

http://pastebin.com/jbt3j40h

既然我能够得到的面孔来检测，我可以一个位图绘制粘贴到ImageButton的，它中心就好了，有没有办法让周围的bitmapdrawable矩形，如果我的问题不能得到解决？

谢谢！

编辑：我试图执行它变成一个RelativeLayout的，仍然做着同样的事情：

http://pastebin.com/daqMdXjB

 难道这code是让我为中心的方法是什么？    公共无效processCameraImage（意向意图）{
        mFlipper.setDisplayedChild（1）; // 1 ==你的第二个布局
        mThePicture =（ImageView的）findViewById（R.id.image_view）; //
        。cameraBitmap =（位图）intent.getExtras（）获得（数据）;        mThePicture.setImageBitmap（cameraBitmap）;
        detectFaces（）;    }
 

解决方案

在ImageView的标签使用的android：scaleType =fitCenter或Android：scaleType =centerInside或Android：scaleType =中心<一个href=\"http://developer.android.com/intl/de/reference/android/widget/ImageView.html#attr_android%3ascaleType\"相对=nofollow> sclaetype ATTR DOC

我希望，我明白你的问题的权利。

this problem has been bothering me for days and I cannot figure out why on earth it is happening. I have a method that detects for a face, if a face is detected, the method will draw a rectangle on a canvas along the face.

That part works fine.

The problem is, when it displays to the image_view in my xml file, it will display on the far left middle of the image view, in a box, rather than in the center with the width as fill_parent.

I thought of a possible workaround : to set the bitmap as a bitmapdrawable, but canvas only draws to bitmaps, so I can get the bitmapdrawable in the middle, but with no red box around it.

I commented out my testing of bitmap drawable, and left it as what I have now...it only displays to my xml in the far left of the image_view. Please take a look and help!

I posted to pastebin because the code is a bit long (I am also using a linear layout within a view flipper).

method:

http://pastebin.com/KQ5Pmx45

xml:

http://pastebin.com/jbt3j40h

Since I am able to get the faces to detect, and I can paste a bitmap drawable to an imagebutton and it centers just fine, is there a way to get the rectangle around the bitmapdrawable if my problem cannot be solved?

Thanks!

EDIT: I tried to implement it into a RelativeLayout and still doing the same thing:

http://pastebin.com/daqMdXjB

Could this code be getting my way of centering?

    public void processCameraImage(Intent intent) {
        mFlipper.setDisplayedChild(1); // 1 == your second layout
        mThePicture = (ImageView) findViewById(R.id.image_view); //
        cameraBitmap = (Bitmap) intent.getExtras().get("data");

        mThePicture.setImageBitmap(cameraBitmap);
        detectFaces();

    }

解决方案

Use on Imageview tag android:scaleType="fitCenter" or android:scaleType="centerInside" or android:scaleType="center" sclaetype attr doc

I hope, I understood your problem right.

这篇关于真正需要帮助搞清楚为什么一个位图放置在一个不正确的image_view的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！