本文介绍了的Andr​​oid如何创建堆栈样的形象背景的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

我开发一个应用程序,我需要创建相册,并在GridView显示出来。现在我只是显示他们没有任何背景,但我需要一个背景,专辑封面,这样它看起来像一堆照片。背景是这样的:

我尝试了这一点,但不是它的工作:

首先,我创建了一个这样的背景:

 <形状的xmlns:机器人=htt​​p://schemas.android.com/apk/res/android>

    [固体机器人:颜色=#FFFFFF/>

    <中风
        机器人:宽=1DP
        机器人:颜色=#000000/>

    <填充
        机器人:底部=1DP
        机器人:左=1DP
        机器人:右=1DP
        机器人:顶部=1DP/>

< /形状>
 

然后,我用一层名单提请堆栈轮换:

 <层列表的xmlns:机器人=htt​​p://schemas.android.com/apk/res/android>

    <旋转
        机器人:可绘制=@可绘制/ thumb_bg
        机器人:fromDegrees =90
        机器人:pivotX =50%
        机器人:pivotY =50%
        机器人:toDegrees =100/>
    <旋转
        机器人:可绘制=@可绘制/ thumb_bg
        机器人:fromDegrees =90
        机器人:pivotX =50%
        机器人:pivotY =50%
        机器人:toDegrees =110/>
    <旋转
        机器人:可绘制=@可绘制/ thumb_bg
        机器人:fromDegrees =90
        机器人:pivotX =50%
        机器人:pivotY =50%
        机器人:toDegrees =120/>

< /层列表>
 

解决方案

我用位图创建堆栈视图,并显示在一个ImageView的。您可以在此基础上,保存位图资源然后将其添加在GridView或者用它在GridView的适配器getView我想。

 位图M1C = BitmapFactory.de codeResource(getResources(),R.drawable.cat_13);
位图M2C = BitmapFactory.de codeResource(getResources(),R.drawable.cat_13);


INT W = m1c.getWidth();
INT H = m1c.getHeight();

矩阵MTX =新的Matrix();
mtx.postRotate(4);
位图rotatedBMP = Bitmap.createBitmap(M1C,0,0,W,H,MTX,真);

矩阵MTX2 =新的Matrix();
mtx2.postRotate(-4);

位图rotatedBMP2 = Bitmap.createBitmap(M1C,0,0,W,H,MTX2,真);


帆布comboImage =新的Canvas(rotatedBMP);
comboImage.drawBitmap(rotatedBMP2,-10,-10,空);
comboImage.drawBitmap(M2C,10,10,NULL);

ImageView的形象=(ImageView的)findViewById(R.id.imageView1);
image.setImageBitmap(rotatedBMP);
 

I am developing an App where i need to create Albums and display them in a GridView. Now i am just displaying them without any background but i need a background for the Album cover so that it looks like a pile of photos. Background something like this:

I tried out this but not it's working:

first i created a single background like this:

<shape xmlns:android="http://schemas.android.com/apk/res/android" >

    <solid android:color="#FFFFFF" />

    <stroke
        android:width="1dp"
        android:color="#000000" />

    <padding
        android:bottom="1dp"
        android:left="1dp"
        android:right="1dp"
        android:top="1dp" />

</shape>

And then i used a layer-list to draw the stack with rotation:

<layer-list xmlns:android="http://schemas.android.com/apk/res/android" >

    <rotate
        android:drawable="@drawable/thumb_bg"
        android:fromDegrees="90"
        android:pivotX="50%"
        android:pivotY="50%"
        android:toDegrees="100" />
    <rotate
        android:drawable="@drawable/thumb_bg"
        android:fromDegrees="90"
        android:pivotX="50%"
        android:pivotY="50%"
        android:toDegrees="110" />
    <rotate
        android:drawable="@drawable/thumb_bg"
        android:fromDegrees="90"
        android:pivotX="50%"
        android:pivotY="50%"
        android:toDegrees="120" />

</layer-list>
解决方案

I use bitmap to create the stack view and show it in a imageview. You can based on this to save the bitmap is resource then add it in the gridview or use it in gridview adapter in getView I think.

Bitmap m1c = BitmapFactory.decodeResource(getResources(), R.drawable.cat_13);
Bitmap m2c = BitmapFactory.decodeResource(getResources(), R.drawable.cat_13);


int w = m1c.getWidth();
int h = m1c.getHeight();

Matrix mtx = new Matrix();
mtx.postRotate(4);
Bitmap rotatedBMP = Bitmap.createBitmap(m1c, 0, 0, w, h, mtx, true);

Matrix mtx2 = new Matrix();
mtx2.postRotate(-4);

Bitmap rotatedBMP2 = Bitmap.createBitmap(m1c, 0, 0, w, h, mtx2, true);


Canvas comboImage = new Canvas(rotatedBMP);
comboImage.drawBitmap(rotatedBMP2, -10 , -10 , null);
comboImage.drawBitmap(m2c, 10 , 10 , null);

ImageView image = (ImageView) findViewById(R.id.imageView1);
image.setImageBitmap(rotatedBMP);

这篇关于的Andr​​oid如何创建堆栈样的形象背景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!

10-29 14:13