在倾斜​​的Andr​​oid文本视图 [英] Skewing a text view in Android

问题描述

我期待复制在我的应用程序如下：

I'm looking to replicate the following within my application:

正如你所看到的，它基本上是一个按钮，增加/减少它所包含的文本视图的价值。这个按钮有三种可视状态 - >未pressed，减少和增加（如上图中所示，用户点击增加箭头和按钮出现在那面pssed在$ P $）

As you can see, its basically a button which increases/decreases the value of the text view contained within it. This button will have three visual states -> unpressed, decrease and increase (as seen in the image above, the user taps the increase arrows and the button appears pressed in on that side)

下面是我的3个按钮的状态目前：

Here are my 3 button states currently:

正如你所看到的，这个问题我已经是能够正确倾斜/旋转文本视图，它的外观在视觉上正确的，一起出现按钮倾斜时，它正在增加或减少。

As you can see, the problem I have is being able to correctly skew/rotate the text view so it looks visually correct and appears slanted along with the button when its being increased or decreased.

我已经尝试了两种不同的方法至今：

I have tried two different approaches so far:

• 创建一个覆盖的OnDraw（）方法歪斜画布自定义文本视图类：

• Create a custom text view class which overrides the onDraw() method to skew the canvas:

@Override
public void onDraw(Canvas canvas) { 
   canvas.save(); 

   canvas.skew(0.2f, 0f);

   super.onDraw(canvas); 
   canvas.restore();
}

整合 Rotate3dAnimation 类（来源<一个href="http://$c$c.google.com/p/android-eksempler/source/browse/trunk/BrowseableApiDemos/assets/src/com/example/android/apis/animation/Rotate3dAnimation.java?r=38">here)并用于许多不同的变化，以获得所需的结果，例如：

Integrate the Rotate3dAnimation class (source here) and used many different variations to get the desired result such as:

   Rotate3dAnimation skew = new Rotate3dAnimation(
          30, 0, centerX, centerY, 0, false);
   txtAmount.startAnimation(skew); 

不幸的是，我不太得到了反映上面的第一个图像的精确结果。我越来越困惑与Z轴设定值，倾斜，旋转等。

Unfortunately, I'm not quite getting the exact result that mirrors the first image above. I'm getting confused with setting values with the Z-axis, skew, rotate etc.

我会非常AP preciate任何人的帮助，谁拥有这个东西的经验。在此先感谢

I'd greatly appreciate any help from anyone who has experience with this stuff. Thanks in advance

推荐答案

嗯，我甚至尝试，我想出了这样的事情：

Well I even tried and I came up with something like this:

 public class DemoActivity extends TextView {
    Context context;
    String firstText = "$120.00";

 public DemoActivity(Context context)
   {
    super(context);
    this.context = context;

   }


    @Override
    protected void onDraw(Canvas canvas) {
    super.onDraw(canvas);
    setText(firstText);
    setTextSize(30);
    canvas.skew(1.0f, 0.3f);  //you need to change values over here
    Rotate3dAnimation skew = new Rotate3dAnimation(
              -20, 30,200, 200, 0, false);   //here too
    startAnimation(skew);

        }
    }

我得到一个输出为：

I got an output as:

我想改变的试验和错误的价值观能够解决您的问题。 希望它能帮助。

I guess changing the values by trial and error can solve your problem. Hope it helps.

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