Anyone know about the detail? Any website or suggestion?
From the source:
There is also a secondary progress
displayable on a progress bar which is
useful for displaying intermediate
progress, such as the buffer level
during a streaming playback progress
bar.
One can find a fully worked example of displaying such a bar, including screenshots of the appearance of such a bar in a particular style (circular bar which fills from the bottom):
In the image above, the secondary bar is the green area, when it reaches the top, some subtask is complete.
Secondary progress vs Progress can be thought of like the downloaded part of a video you're watching vs the complete length of the progress bar
Related
I have two tabs in my app.First tab displays the details of user and the second tab displays the applications that are installed on his device.I have used Package manager for getting the installed apps and it is running ins background thread. If the user clicked the second tab before the background thread completes I want to show a progressdialog.But the problem is if progressdialog is displayed on the screen user can't switch to next tab.Is there any way to solve this issue.Thanks in advance.
Progress dialogue by default works in dialogue mode and freezes any operations until the progress bar is gone.
I had faced issues with controlling progress bar (though my requirements were more than yours like customizing looks and showing/ hiding/ freezing bar at will), so I ended up creating a custom progress bar.
It is pretty simple
Create 2 straight straight bars, one black and other of any color (if you want something more fancy, it is upto you)
Add the bars to drawable and then to your layout xml in hidden mode. The colored bar exactly on top (superimpose) of black bar
Now where you want to show the progress bar, make the black bar visible first, and adjust the width of colored bar (on top of black bar) as per the progress.
This will give you proper functionality of the progress bar.
As you are playing around only with imageviews, you have full control over when to show or hide the bar. Also by default it will not freeze the view. You can freeze at will by capturing onTouch event.
Is it possible to have three states in a progress bar?
I know how to set a secondary state, but there is no tertiary state. How do I expand a progress bar to handle that?
greetings, tata
Looking at the source code for the default system progress bar at ProgressBar.java shows that there is hardcoded limit of two bars at once...
The easiest way for you may probably be copying the progressbar source to your project and add another bar by yourself.
Since there is a secondary progress bar already present, additional ones should not pose any extra difficult challenge (just follow the example of the secondary one).
Is there a way to show, only while loading, a webview's progress bar, at the bottom of the app ?
Currently, my progress bar is showed in the title bar. But I don't want it there. I want it at the botton of the app.
Is there a way to do it ?
Thanks!
A solution is to hide the title bar (not necessary but it will save screen space), and add your own progress bar at the bottom of your layout.
But it goes against the normal user interface standards and could be confusing to users so I wouldn't recommend to change the progress bar location.
I have a Splash Screen for an Android Project in which I have to add a progress bar for 5 seconds but the problem is that the screen's background is white and our progress bar doesn't displayed on that, due to this reason I downloaded a progress bar GIF image which is not animating in Android, So the question is that How am I able to animating GIF progress bar file on my Splash Screen.
Please suggest me the right solution regarding the same.
Thanks in advance.
Why don't you use black progress bar style which is inbuilt:
<ProgressBar style="#android:style/Widget.ProgressBar.Inverse"/>
Also if you want to use your animated image: you can refer here
For example:
http://jqueryui.com/demos/progressbar/#animated
The progress bar has it's progress increasing from 0 to 100 percent but it still has some animation to it. This helps show the user something is still happening even if the bar is stopped at one point for a moment.
When I set the progress bar to indeterminate, it no longer shows the progress.
Is there a built in way to accomplish this or will I need to subclass ProgressBar?
You will need to subclass ProgressBar.