progressbar

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I'm trying to make a progressbar advance using a BackgroundWorker . The final goal is to show the progress of a background search, but I first want to get to know the progress bar by doing a simple simulation. This is the code: public MainWindow() { InitializeComponent(); worker = new BackgroundWorker(); // variable declared in the class worker.WorkerReportsProgress = true; worker.DoWork += new DoWorkEventHandler(worker_DoWork); worker.ProgressChanged += new ProgressChangedEventHandler(backgroundWorker1_ProgressChanged); worker

AsyncTask和Handler对比 1 ） AsyncTask实现的原理,和适用的优缺点 AsyncTask,是android提供的轻量级的异步类,可以直接继承AsyncTask,在类中实现异步操作, 并 提供接口反馈当前 异步执行的程度 (可以通过接口实现UI进度更新),最后反馈执行的结果给UI主线程. 使用的优点: l 简单,快捷 l 过程可控 使用的缺点 : l 在使用多个异步操作和并需要进行Ui变更时,就变得复杂起来. 2 ）Handler异步实现的原理和适用的优缺点 在Handler 异步实现时,涉及到 Handler, Looper, Message,Thread四个对象，实现异步的流程是主线程启动Thread（子线程）àthread(子线程)运行并生成Message-àLooper获取Message并传递给HandleràHandler逐个获取Looper中的Message，并进行UI变更。 使用的优点： l 结构清晰，功能定义明确 l 对于多个后台任务时，简单，清晰 使用的缺点： l 在单个后台异步处理时，显得代码过多，结构过于复杂（相对性） AsyncTask介绍 Android的AsyncTask比Handler更轻量级一些，适用于简单的异步处理。 首先明确Android之所以有Handler和AsyncTask，都是为了不阻塞主线程（UI线程）

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: This question already has an answer here: How do I use Android ProgressBar in determinate mode? 2 answers I'm trying to do add a progressbar in code and make it determinate: progressBar = new ProgressBar(getActivity()); progressBar.setLayoutParams(layoutParams); parent.addView(progressBar, index); progressBar.setId(id.list_item_secondary); progressBar.setProgressDrawable(getResources().getDrawable(drawable.progress_horizontal)); progressBar.setIndeterminate(false); progressBar.setMax(100); After progressBar.setIndeterminate(false) ,

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I am using a custom ProgressBar. Now while a task is going on, I am showing the progress bar, but user can still interact with the views and controls. How do I disable the user interaction on whole view just like a ProgressDialog does , when it is visible. Do I need to use a transparent view on top of main view and show the progress bar on that view and hide that view once a task is completed. Or just get the id of my parentView and set it disabled ? But then I won't be able to dim the background, just like what happens when a dialog appears

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I want a ProgressBar that is touching a bottom border of screen but with this piece of code, I am getting an little space between bar and screen border: <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" tools:context=".Whatever" > <ProgressBar android:id="@+id/progressBar1" style="?android:attr/progressBarStyleHorizontal" android:layout_width="wrap_content" android:layout_height="wrap_content"

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I'm trying to get a progress bar of the type PBS_MARQUEE working. I can create the progress bar, but i just can't manage it to make it moving. If found this, but i don't understand clearly what i have to do: "Turns out since i had the progress bar as a resource instead of using the CreateWindowEx(..) i had to use SetWindowLongPtr(..) to set the PBS_MARQUEE style for this control..." I create the progressbar that way: hwndPB = CreateWindowEx(0, PROGRESS_CLASS, (LPSTR)NULL, WS_CHILD | WS_VISIBLE | PBS_MARQUEE , rcClient.left, rcClient.bottom -

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: When my application starts, and it has just been upgraded, I am doing a local database update (sqlite). It is like that: The user starts my app, and then I start the upgrade process. During this upgrade process I am showing a form that has a continuous progressbar. This form closes when the upgrade process is done and the user can then start using my application. But the progressbar won't animate since the upgrade process is so intensive. In my old VB6 version I used an ActiveX-Exe that has 1 form and shows a progressbar. This was my

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I have a circular ProgressBar , I want inside this circular bar, write the progression in percentage (like 60 %, or 70 %..) How can I do this inside the circular ProgressBar ? <?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/RelativeLayout1" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" > <ProgressBar android:id="@+id/progressBars" android:layout_width="200dp" android:layout_height="200dp" android:layout

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I have a progressBar using the ProgressBar class. Just doing this: progressBar = new ProgressBar(this, null, android.R.attr.progressBarStyleHorizontal); I need to change the color of that one, using input value like so: int color = "red in RGB value".progressBar.setColor(color) or something like that... I can't use an XML layout because the progress bar is customizable for users. 回答1: This will help much no need to do so much coding :) ProgressBar spinner = new android.widget.ProgressBar( context, null, android.R.attr.progressBarStyle);

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I have a circular progress-bar and it works fine.But Background is not appearing, even though i have given shape for "background" in the xml drawable file and also progress starts from the right side of the circle (as shown in the figure). I want it to make it from the top. Here is my code: progressbar.xml I use following code to set progress: ProgressBar pb = (ProgressBar)FindViewById (Resource.Id.progressBarToday); _progressBar.Progress = _progressCount; Why the background is not appearing? and How can i make the progress start from the