LayerDrawable以编程方式

Question

由于我的应用程序的颜色主题是动态的，所以我只能使用colors和shapedrawables创建背景可绘制内容，我想构建一个可使用颜色和形状绘制的edittext背景，如下所示。但是我想通过编程来实现这一点

如何以编程的方式构建同样的可绘制？

​

<item>
    <shape>
        <solid android:color="@android:color/yellow" />
    </shape>
</item>

<!-- main color -->
<item
    android:bottom="1dp"
    android:left="1dp"
    android:right="1dp">
    <shape>
        <solid android:color="@android:color/white" />
    </shape>
</item>

<!-- draw another block to cut-off the left and right bars -->
<item android:bottom="10dp">
    <shape>
        <solid android:color="@android:color/white" />
    </shape>
</item>

​

这就是我试过的.

    GradientDrawable border = new GradientDrawable();
    border.setShape(GradientDrawable.RECTANGLE);
    border.setColor(Color.WHITE);

    GradientDrawable background = new GradientDrawable();
    background.setShape(GradientDrawable.RECTANGLE);
    background.setColor(Color.YELLOW);


    GradientDrawable clip = new GradientDrawable();
    clip.setShape(GradientDrawable.RECTANGLE);
    border.setColor(Color.WHITE);

    Drawable[] layers = {background, border, clip};
    LayerDrawable layerDrawable = new LayerDrawable(layers);

    layerDrawable.setLayerInset(0, 0, 0, 0, 0);
    layerDrawable.setLayerInset(1, 1, 0, 1, 1);
    layerDrawable.setLayerInset(2, 0, 0, 0, 10);

但结果是different....please help...！

Answer 1

我终于把它修好了。我使用的是ShapeDrawable而不是GradientDrawable。

通过将此LayerDrawable设置为EditText背景，您可以使用自定义颜色重新生成默认EditText样式。

ShapeDrawable border = new ShapeDrawable();
border.getPaint().setColor(Color.WHITE);

ShapeDrawable background = new ShapeDrawable();
background.getPaint().setColor(Color.BLACK);


ShapeDrawable clip = new ShapeDrawable();
clip.getPaint().setColor(Color.WHITE);

Drawable[] layers = {background, border, clip};
LayerDrawable layerDrawable = new LayerDrawable(layers);

layerDrawable.setLayerInset(0, 0, 0, 0, 0);
layerDrawable.setLayerInset(1, 1, 0, 1, 1);
layerDrawable.setLayerInset(2, 0, 0, 0, 10);

Answer 2

这也适用于渐变绘图：

GradientDrawable border = new GradientDrawable();
border.setColor(Color.White);

GradientDrawable background = new GradientDrawable();
background.setColor(Color.Black);

GradientDrawable clip = new GradientDrawable();
clip.setColor(Color.White);

GradientDrawable[] layers = {background, border, clip};
LayerDrawable layerDrawable = new LayerDrawable(layers);

layerDrawable.setLayerInset(0, 0, 0, 0, 0);
layerDrawable.setLayerInset(1, 1, 0, 1, 1);
layerDrawable.setLayerInset(2, 0, 0, 0, 10);