我正在以编程方式生成滚动条,并且我已经定义了一种更改颜色的样式,所以我的问题自然是:如何设置滚动条的滚动条样式?
ProgressBar progressBar = new ProgressBar(this, null, Android.Resource.Attribute.ProgressBarStyleHorizontal);
// I tried ProgressBar progressBar = new ProgressBar(this, null, Android.Resource.Drawable.myprogressbar); but it doesn't work
progressBar.Progress = 25;
linearLayout.AddView(progressBar);
我的风格之路是android:attr/progressBarStyleHorizontal
这样的,我怎么能做到这一点?
XML 代码(必须以编程方式生成)是:
<ProgressBar
style="?android:attr/progressBarStyleHorizontal"
android:progressDrawable="@drawable/myprogressbar"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:id="@+id/progressBar1"
android:progress="50"
android:startColor="#ffffff"
android:endColor="#ff1997e1" />
编辑:
我放:
ProgressBar progressBar = new ProgressBar(this, null, Resource.Drawable.myprogressbar);
但现在应用程序上没有显示栏:-(
编辑:
我也测试了该代码,但什么也没有出现:
var progressBar = new ProgressBar(this, null, Resource.Drawable.myprogressbar)
{
Progress = 25,
LayoutParameters = new ViewGroup.LayoutParams(ViewGroup.LayoutParams.FillParent, ViewGroup.LayoutParams.WrapContent),
};
linearLayout.AddView(progressBar);
当我尝试使用以下方法在创建进度条后设置progressdrawable时:
progressBar.ProgressDrawable = Resource.Drawable.myprogressbar;
我有:
无法将类型“int”隐式转换为“Android.Graphics.Drawables.Drawable”。存在显式转换(您是否缺少演员表?)
最终编辑:
这是我的最后一个代码:
// progressbar with custom style (Resources/Drawable/myprogress.xml)
ProgressBar progressBar = new ProgressBar(this, null, Android.Resource.Attribute.ProgressBarStyleHorizontal)
{LayoutParameters = new ViewGroup.LayoutParams(ViewGroup.LayoutParams.FillParent, ViewGroup.LayoutParams.WrapContent)};
progressBar.ProgressDrawable = Resources.GetDrawable(Resource.Drawable.myprogressbar);
// Compute for the percent of this usage (to assign it to the progressbar)
progressBar.Progress = 33;
linearLayout.AddView(progressBar);