使位图绘制平铺在X，但舒展y中 [英] Make bitmap drawable tile in x but stretch in y

问题描述

我有我使用作为背景的​​RelativeLayout的图像。的图像需要被横向平铺使一个图案。

I have an image which I'm using as a background for a RelativeLayout. The image needs to be tiled horizontally to make a pattern.

我能够获得图像水平平铺使用该code：

I'm able to get the image to tile horizontally by using this code:

BitmapDrawable b3 = (BitmapDrawable)getResources().getDrawable(R.drawable.background);

b3.setTileModeX(Shader.TileMode.REPEAT);

v.findViewById(R.id.layout).setBackgroundDrawable(b3);

的问题是，该图像也瓷砖垂直。它似乎平铺在夹持模式在垂直，但在水平重复模式。下面是截图：

The problem is that the image also tiles vertically. It seems to tile in the "clamp" mode in the vertical, but "repeat" mode in the horizontal. Here is a screenshot:

正如你所看到的图像比它占用的空间只是一点点小，底边是钳制。

As you can see, the image is just a little bit smaller than the space it occupies, and the bottom edge is "clamped".

我如何设置图像在垂直方向伸展，但横向平铺？

How can I set the image to stretch vertically but tile horizontally?

推荐答案

这个方法调用创建新位图，但它看起来像它的acrhiving你的目标

This method invokes creation of new bitmap but it looks like it's acrhiving your goal

        View view = findViewById(R.id.layout);
        BitmapDrawable bd = (BitmapDrawable) getResources().getDrawable(R.drawable.tile);
        int width = view.getWidth();
        int intrinsicHeight = bd.getIntrinsicHeight();
        Rect bounds = new Rect(0,0,width,intrinsicHeight);
        bd.setTileModeX(TileMode.REPEAT);
        bd.setBounds(bounds);
        Bitmap bitmap = Bitmap.createBitmap(bounds.width(), bounds.height(), bd.getBitmap().getConfig());
        Canvas canvas = new Canvas(bitmap);
        bd.draw(canvas);
        BitmapDrawable bitmapDrawable = new BitmapDrawable(bitmap);
        view.setBackgroundDrawable(bitmapDrawable);

请注意，只有当有人已经layouted，这样的方法LILE onWindowFocusChanged 是该code的好地方。

Please note that it only works if view was already layouted, so a method lile onWindowFocusChanged is a good place for this code.

这篇关于使位图绘制平铺在X，但舒展y中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！