android中进度条两边都是圆角的
我正在尝试在 android 中创建一个自定义进度条。我使用了以下 xml 文件(progress_bar_horizontal.xml):
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item android:id="@android:id/background">
<shape>
<corners android:radius="8dip" />
<stroke android:width="2dip" android:color="#FFFF"/>
<solid android:color="#FFFF"/>
</shape>
</item>
<item android:id="@android:id/secondaryProgress">
<clip>
<shape>
<corners android:radius="8dip" />
<stroke android:width="2dip" android:color="#FFFF"/>
<solid android:color="#FF00"/>
</shape>
</clip>
</item>
<item android:id="@android:id/progress">
<clip>
<shape>
<corners android:radius="8dip" />
<stroke android:width="2dip" android:color="#FFFF"/>
<solid android:color="#FF00"/>
</shape>
</clip>
</item>
</layer-list>
除了我希望进度条中的进度在两侧都圆整之外,一切都运行良好。上述代码使进度条在左侧圆角化,并在右侧简单地剪切(不圆角化)。可能是因为 Clip 标签。你能帮我一下吗?我应该更改什么才能使进度条中的进度在两侧四舍五入?
完整布局如下:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:background="@drawable/gradient_progress"
android:padding="10dip"
>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal"
>
<TextView
android:id="@+id/progress_header"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="#FF000000"
android:textAppearance="?android:attr/textAppearanceMedium"
android:textStyle="bold"
android:text="Uploading"
/>
<TextView
android:id="@+id/progress_percent"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="#FF000000"
android:textAppearance="?android:attr/textAppearanceMedium"
android:textStyle="bold"
android:text="55%"
android:paddingLeft="10dip"
/>
</LinearLayout>
<ProgressBar
android:id="@+id/progress_bar"
style="?android:attr/progressBarStyleHorizontal"
android:layout_gravity="center"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:progressDrawable="@drawable/progress_bar_horizontal"
android:maxHeight="12dip"
android:minHeight="12dip"
android:max="100"
/>
</LinearLayout>
</LinearLayout>
这是我努力的结果:链接文本
我希望红色条的右侧也有圆形边缘。 非常感谢您的评论。
I am trying to create a custom progress bar in android. I have used the following xml file for it (progress_bar_horizontal.xml):
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item android:id="@android:id/background">
<shape>
<corners android:radius="8dip" />
<stroke android:width="2dip" android:color="#FFFF"/>
<solid android:color="#FFFF"/>
</shape>
</item>
<item android:id="@android:id/secondaryProgress">
<clip>
<shape>
<corners android:radius="8dip" />
<stroke android:width="2dip" android:color="#FFFF"/>
<solid android:color="#FF00"/>
</shape>
</clip>
</item>
<item android:id="@android:id/progress">
<clip>
<shape>
<corners android:radius="8dip" />
<stroke android:width="2dip" android:color="#FFFF"/>
<solid android:color="#FF00"/>
</shape>
</clip>
</item>
</layer-list>
Everything works great apart from the fact I would like to have the progress in my progress bar rounded on both sides. The aforementioned code makes a progress bar to be rounded on the left hand side and simply cut (not rounded) on the right hand side. It is because of the clip tag probably. Could you please help me on that? What should i change to have the progress in my progress bar rounded on both sides?
The full layout goes below:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:background="@drawable/gradient_progress"
android:padding="10dip"
>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal"
>
<TextView
android:id="@+id/progress_header"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="#FF000000"
android:textAppearance="?android:attr/textAppearanceMedium"
android:textStyle="bold"
android:text="Uploading"
/>
<TextView
android:id="@+id/progress_percent"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="#FF000000"
android:textAppearance="?android:attr/textAppearanceMedium"
android:textStyle="bold"
android:text="55%"
android:paddingLeft="10dip"
/>
</LinearLayout>
<ProgressBar
android:id="@+id/progress_bar"
style="?android:attr/progressBarStyleHorizontal"
android:layout_gravity="center"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:progressDrawable="@drawable/progress_bar_horizontal"
android:maxHeight="12dip"
android:minHeight="12dip"
android:max="100"
/>
</LinearLayout>
</LinearLayout>
Here is the result of my effort: link text
I would like the red bar to have rounded edges on the right hand side as well.
Thank you so much for your comments.
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下面是时代更新的答案:
Android源码使用Patch 9文件来实现效果:
http://grepcode.com/file/repository.grepcode.com/java/ext/com.google.android/android/4.4_r1/frameworks/base/core/res/res/drawable/progress_horizontal_holo_dark.xml /
因此,从您的布局 xml 开始:
您可以将其中的大部分内容移至样式 xml,但这不是重点。我们真正关心的是
android:progressDrawable="@drawable/custom_progress_bar_horizontal"
- 这将允许我们指定我们自己的自定义进度条:或者您不必使用 Patch 9你的背景 - 例如,这是一个带有 1dp 边框的简单白色背景:
Android Asset Studio 有一个很棒的工具可以帮助你生成 Patch 9 文件:
http://android-ui-utils.googlecode.com/hg/ asset-studio/dist/nine-patches.html
主要 xdpi png 示例,工具前有填充:
工具前有填充的辅助 xdpi png 示例:
最终输出:
Here's an updated answer for the times:
The Android source code uses Patch 9 files to achieve the effect:
http://grepcode.com/file/repository.grepcode.com/java/ext/com.google.android/android/4.4_r1/frameworks/base/core/res/res/drawable/progress_horizontal_holo_dark.xml/
So start in your layout xml:
You can move a lot of this to a style xml but that's beside the point. What we really care about is
android:progressDrawable="@drawable/custom_progress_bar_horizontal"
- which is going to allow us to specify our own custom progress bars:Or you don't have to use a Patch 9 for your background- for example here's a simple white background with a 1dp border:
Android Asset Studio has an awesome tool to help you generate Patch 9 files:
http://android-ui-utils.googlecode.com/hg/asset-studio/dist/nine-patches.html
Example primary xdpi png with padding before the tool:
Example secondary xdpi png with padding before the tool:
And the final output:
只需将标签
更改为
,如下所示:Just change the label
<clip>
to<scale>
like this:您可以使用材质组件库提供的
LinearProgressIndicator
和app:trackCornerRadius
属性。类似于:
注意:它至少需要版本
1.3.0-alpha04
。You can use the
LinearProgressIndicator
provided by the Material Components Library and theapp:trackCornerRadius
attribute.Something like:
Note: it requires at least the version
1.3.0-alpha04
.据我所知,这是不可能的。因为在内部
ClipDrawable
(即剪辑标签)使用canvas.clipRect()
剪切给定的形状/可绘制对象。顺便说一句,您可以从 此处 并根据进度级别剪辑特定路径。As far as I know, this is not possible. Because internally
ClipDrawable
(i.e. clip tag) cuts the given shape/drawable usingcanvas.clipRect()
. Btw, you can copy theClipDrawable
source from here and clip a particular path based on the progress level.为了解决当进度非常低时最终图形自身重叠的问题,我编写了 ProgressBar 类的扩展,它向进度条添加了固定的起始偏移量,而其他功能则正常。
只需调用“setMaxWithPercentOffset()”或“setMaxWithOffset()”,而不是“setMax()”,传入要添加为进度条起始偏移量的值。
如果有人在不需要开始偏移的情况下解决了这个问题,请告诉我!
In order to solve the problem where the end graphics overlap themselves when the progress is very low, I've written an extension to the ProgressBar class that adds a fixed start offset to the progress bar, while otherwise functioning as normal.
Just call 'setMaxWithPercentOffset()' or 'setMaxWithOffset()' rather than 'setMax()' passing in the value you want to add as a start offset to the progress bar.
If anyone has solved this problem without requiring the start offset let me know!
最终圆形双方进度条(不含 9 补丁)为:
android:progressDrawable="@drawable/progress_horizontal_green"
Final rounded both sides progress bar without 9-patch is:
android:progressDrawable="@drawable/progress_horizontal_green"