Re: How To Hide Apps On Android And How To Show Them Back
Toni Jarels
But now there is another problem. After putting windowActionBar="false" in the theme, the Activity draws its normal Window Title instead of an ActionBar.
If we try to avoid this by using some of the *.NoTitleBar stock themes or we try to put true in our own theme, it won't work.
The reason is that the ActionBar depends on the Window Title to display itself - that is the ActionBar is a transformed Window Title.
So the trick which can help us out is to add one more thing to our Activity theme xml:
ADDON:If you show and hide the ActionBar multiple times maybe you have noticed that the first showing is not animated. From then on showing and hiding are animated. If you want to have animation on the first showing too you can use this:
The idea is to delay a little the hiding of the ActionBar. In a way we let the ActionBar be shown, but then hide it immediately. Thus we go beyond the first non-animated showing and next showing will be considered second, thus it will be animated.
As you may have guessed there is a chance that the ActionBar could be seen before it has been hidden by the delayed operation. This is actually the case. Most of the time nothing is seen but yet, once in a while, you can see the ActionBar flicker for a split second.
I was also trying to hide Action Bar on Android 2.2, but none of these solution worked. Everything ends with a crash. I checked the DDMS LOg, It was telling me to use 'Theme.AppCompat'.At last I Solved the problem by changing the android:theme="@android:style/Theme.Holo.Light.NoActionBar"Line
As a special case, if you call startActivityForResult() with a requestCode >= 0 during the initial onCreate(Bundle savedInstanceState)/onResume() of your activity, then your window will not be displayed until a result is returned back from the started activity. This is to avoid visible flickering when redirecting to another activity.
The best way to do this is two make the first activity as blank activity and the content you want to put and then after some time fire another activity.By following this way you can make the first activity as your splash screen without action bar or anything.Heres my first activity
I realise that posting links are not the best way to do things, but I highly recommend you read the following documentation from Google themselves. This is the official android doc on how to control your system ui (things like actionbar, nav bar etc). Unfortunately the info is too much to post directly, but after reading this you will understand exactly how to show and hide features no matter what version you are developing for, its so simple!
After writing in the edit field and clicking on the Button, I want to hide the virtual keyboard when touching outside the keyboard. I assume that this is a simple piece of code, but where can I find an example of it?
I just had a very simular situation where my layout contained an EditText and a search button. When I discovered I could just set the ime option to "actionSearch" on my editText, I realized I didn't even need a search button anymore. The soft keyboard (in this mode) has a search icon, which can be used to kick off the search (and the keyboard closes itself as you would expect).
Actually, always Android authority is giving new updates but they are not handling their old drawbacks which all Android developers face in their development this should be handled by Android authority by default, on changing focus from EditText should hide/show soft input keyboard option. But sorry about that, they are not managing. Ok, leave it.
Within a few weeks I had a functioning application that met all my needs. But a funny thing happened soon after I launched. Other people started using the application. Knowing I had created something useful for a large audience was really satisfying. And so I did what any other developer who is already stretched thin and trying to balance a full time job and a family and hobby projects would do: I spent my nights, weekends, and every free moment I had working on it.
When I say they were becoming a hindrance, what I really mean is that my lack of knowledge of the technologies had come back to bite me. For all the reasons I had chosen them, there were plenty of other reasons that might have made me think differently, had I known about them.
Web browsers work using a traditional client-server model. A web browser (the client) sends a request for some page to a web host (the server). The server sends back some HTML to the web browser. That HTML includes structured text along with links to other files such as images, CSS, JavaScript, etc. The combination of the HTML, along with these other files, allows the web browser to render a meaningful web page for the user.
And thus the world turns. You click a link, your web browser sends the request to the server, and the server sends back some HTML. Every response back from the server is the full HTML document required to render a web page.
Instead, it contains a handful of placeholder elements, along with some links to JavaScript files. These JavaScript files are the heart and soul of the single-page app. Once loaded, they send back requests to the server to fetch content, and then dynamically update the HTML in the web browser to create a meaningful web page.
By all outward appearances, the application behaves like a traditional web site. The user sees HTML with images and buttons and interacts the exact same way. But under the hood things are very much different.
Just like a web browser, Google and other web crawlers request the HTML contents for pages on a web site. But instead of rendering it like a web browser would, it analyzes the HTML to semantically understand what the web page is about.
And like most single-page apps, the default HTML included lots of helpful developer information that is intended to be used for trouble-shooting, but never actually displayed in a web browser when things are working properly. Even worse, the template is the same for all URLs on the site, so Google got the same (wrong) interpretation for every page it crawled.
Another area I ran into problems with was social sharing. My website allowed users to create dynamic content, and also included lots of static content that others might find useful. And in the early days of launching, I indeed saw that people were sharing links to my websites across various social media platforms:
For example, when you share a link to a website on Facebook, the first thing that happens is Facebook reads the webpage and generates a nice preview of that article. The preview has a title, a line or two of descriptive text, and an image.
In my case, Facebook was falling victim to the same problem Google was. It was reading the template HTML file as-is, and not applying the JavaScript that would help fill in the metadata and create meaningful previews.
What this meant for my users is that every link from my website that was shared to Facebook and other social networks was generating the exact same preview. Whether it was users sharing their custom content, one of the static pages that I auto generated, or even the home page, every link shared on social media had the same preview.
But as new users started to use the website, I started to get worried about these things. Were my queries as performant as possible? Was I taxing MongoDB with too many requests? Would new users give up if a page took too long to load?
Periodically, the cached content will expire and CloudFlare will need to pass the request on to my server. But on aggregate, this approach can drastically reduce load on your server because far fewer requests end up getting through. As a bonus, the user experience is improved because returning the cached content is much faster than having your web server generate it from scratch.
In a sense, this is how we learn. We can take all the programming boot camps and courses under the sun, but real learning comes from frustration. Real knowledge and understanding come from hours spent stepping through code in a debugger. Unfortunately for me, this project had taken on new meaning and it was no longer the right context for me to explore and learn.
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But since this is an article, I (an Android user myself) will be taking you to the root of the problem and suggesting you some ways to avoid this, and yes you can call me Santa Clause because, at some point, this is exactly what you wished for, out of frustration.
Hence, some developers write little scripts in their websites that make your phone install certain apps or .apk files or other stuff by themselves, as soon as you visit those sites. Of course, you can uninstall/delete them later but this irritates you for sure.
No, this is just an irritating way of earning money as it (usually) causes no harm. However, some sites that can insert viruses or malware or trojans in your devices, so you need to update your antivirus.
Enabling Unknown Sources will allow downloading and installation of applications from any website across the internet. You can disable this feature which will stop apps from downloading by themselves.
Many adware and spam applications cling to famous applications which are safe and are downloaded by the users. The applications are installed in the form of updates and the user thinks that these updates are for the genuine application which they have installed.
Once you have disabled automatic app updates on the Google Play Store, you can manually permit the installation of updates whenever you want. This way, nothing will be updated without your permission.
You need to get the default Stock ROM back which was available for your Android smartphone as it should fix the auto app download problem for you. Installing Stock ROM on your Android device will restrict the installation of third-party applications which we usually see with custom ROMs.
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