我确实阅读了这个问题 关闭Android应用程序的正确方法？，但我想知道如何关闭 - 这意味着关闭 - 应用程序以节省电源和下载限制。
使用 htc欲望Android 2.1
I did read this question What is the right way to close apps in Android? but I want to know how to close - that means close - application to save power and download limit.
My observations tell me that
Back button brings me to the previous page (something I am not after) while
Home seems to me leaves the page loading in background. So the question is how do I exit the browser.
I tried Advanced Application Killer but I don't think it worked ...
Using HTC Desire on Android 2.1
Closing the browser has no benefit. The android subsystem manages the memory on the device really well and will free up memory from background applications if it needs it. As I understand it, it does this by saving the application state in a database on disk. If you run the application again, it can then rebuild its state from the info in the database.
You shouldn't want to close applications manually. Just stop loading the current page with the Stop menu item, and use the Home key. This will leave the app running in the background, but without costing power or wasting your download limit.
Applications are built to save their state to storage _at_any_time_, and to restore themselves from that state. They are also built to be closed by the OS at any time (e.g. when it needs the room for something else).
AFAICT, all applications share the same screen stack: opening an application's page "over" another one simply adds additional pages to the stack. The Back button just pops the topmost page off. The Home button pops all the pages off the stack.
The applications are still running and, if they are written as directed, will keep their previous state when you explicitly open them again. The difference between an application stored and an application waiting in the background is less than in a desktop OS.
Open a new tab/window on your browser. Close the tab you were using and any others that were open, except for window/tab you have just launched, which should just leave you with the new tab/window which should be your home page. Now use the back arrow. That effectively exits out of windows and solves any java issues too.
The android designs says that when the user 'goes away' from the application the app should keep running for a fast start and for background music playing etc.
This means that what you're asking for is against the nature of android. Applications themself could choose to close themselves after you click 'a close button'. Since applications have to come up with their own solutions you can image that there is no 'one button solution'.
Using a taskkiller is a solution for this problem. A single program in the widget list to kill all unneeded applications for a performance and battery boost is a great help. I'm using Advanced Task Killer set up to keep my most used applications but to close all other rarely used apps.
There might be a browser with a close button but the one I use doesn't have a close button. Then again keeping open the page I last visited is a welcome feature.
Removing the browser entry from the recent apps menu will kill the browser in the sense you mean, but it won't stop any ongoing downloads. For that, hold down the download notification until it shows a small menu with "App info" on it, tap that entry, and press "Force Stop" on the screen that comes up. If the app responsible for the download is the native download manager, also clear it's cache (maybe even it's data) to prevent the download from getting resumed automatically. This is applicable for Android versions below Marshmallow.
press and hold the browser icon until the inline toolbar appears, press the application info icon, there u can press "force stop"