旋转ImageView的和不cropp背景 [英] Rotating imageview and its background without cropp

问题描述

我一直在寻找了很多，但我不能让我的问题的解决方案。因为我想这个程序下11版与Android兼容的API轮换：我不能使用Android。
我的问题是类似这样：在android系统旋转视图

I've been searching a lot, but I can't get a solution for my problem. I can't use android:rotation as I want this app to be compatible with Android API under 11 version. My problem is something similar to this: Rotating a view in android

我已经做到了这一点：

@Override
public void draw(Canvas canvas) 
{
canvas.save();
Drawable d = getDrawable();
canvas.rotate(-10, d.getIntrinsicWidth()/2, d.getIntrinsicHeight()/2);
super.draw(canvas);
canvas.restore();
}

该ImageView的是一个相对的布局，我放置图像和一些文本的一部分。

The imageView is part of a relative layout where I place the image and some text.

但图像的边缘裁剪。我怎样才能避免？

But the image is cropped in the edges. How can I avoid that?

推荐答案

您只需添加：

android:clipChildren="false"

父的ViewGroup 。

例如：

<?xml version="1.0" encoding="utf-8"?>
<FrameLayout
    android:layout_width="300dp"
    android:layout_height="300dp"
    android:clipChildren="false">
    <com.yourcompany.views.RotateImageView
        android:layout_width="100dp"
        android:layout_height="100dp"
        android:background="@android:color/white"
        android:src="@drawable/ic_launcher" />
</FrameLayout>

RotateImageView：

RotateImageView:

public class RotateImageView extends ImageView {
    @Override
    public void draw(Canvas canvas) {
         canvas.save();
         int height = canvas.getHeight();
         int width = canvas.getWidth();
         canvas.rotate(45, height / 2, width / 2);
         super.draw(canvas);
         canvas.restore();
    }
}

哪个API等级11

Which provides a clean solution before API Level 11

这篇关于旋转ImageView的和不cropp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IT屋！