(reason.equalsignorecase ("HomeKey")) {///////To Mask Home key//Do some of your own actions here, such as re-opening your lock screen program interface, It's not going to go away. System.out.println ("Home key is triggered");} else if (reason.equalsignorecase ("Recentapps")) {//Shielded Home key Long press method Syst
Android operating system for In addition, if the user wants to add an app shortcut to the device's home screen, you can press and hold the app's icon in launcher, and the Android system will automatically add a shortcut to the app on the home
/birthday_width_provider.xml and the contents are as follows.Appwidget-provider Xmlns:android= "Http://schemas.android.com/apk/res/android"Android:minwidth= "150DP"Android:minheight= "120DP"Android:updateperiodmillis= "43200000"Android:initiallayout= "@layout/birday_widget"android:configure= "Cn.wei.flowingflying.testwidget.ConfigBirthDayWidgetActivity"Android:previewimage= "@drawable/gift"Android:resizemode= "Horizontal|vertical" >In the widget list,
Home screen is the most important application of a mobile phone, just like the homepage of a portal website, which directly determines the user's first impression. The following is a brief analysis of home screen.
The home screen
On the android unlock page, plug in USB to open the USB storage settings page. Press the HOME Key/Return key to directly return to launcher, instead of sliding the screen lock page.1) If you disable setting -- developer options -- USB debugging disable, it indicates that the current user mode is used, and USB is inserted under the
This article describes the Android programming implementation to get the title bar, status bar height, screen size, and simulate the home key method. Share to everyone for your reference, specific as follows:
1. Get the title bar height:
/**
* Get the height of the title bar *
* @param activity
* @return
/public
int Gettitleheight (activity activity
to describe the current state of a device. These features include: orientation of the screen, screen density, screen size, keyboard type, docking mode, language, and so on.
Imagine a small pop-up window that partially obscures the current activity interface. When it appears, the masked activity is suspended by the system (OnPause ()) and the user cannot inter
fit into widget instancesThe view of the widget instance is controlled by remoteviews, and the sample is made in a static way. Code snippets such as the following:public class Birthdaystoredata {... ...public static void Updateappwidget (Context context,int widgetid,string name, String date) {//"1" To set remote View information///1.1), Get remote View objectremoteviews views = new Remoteviews (Context.getpackagename (), r.layout.birday_widget); ///1.2), SetText () settings for remote viewView
This problem was encountered in the project. Headache for a long time, always can not reproduce, and can not be solved well. Always after the interest screen for a period of time, it will be reported java.lang.IllegalArgumentException:No view found for the ID for .... Problem, and then the program crashes. I believe a lot of friends have the same problem as me. So how to solve this problem?After careful study of fragment's manager, here's what I found
1, before the Android 4.0 version, can be in the activity of Onattachedtowindow Add the following code implementation: @Override public void Onattachedtowindow (){ GetWindow (). SetType (WindowManager.LayoutParams.TYPE_KEYGUARD_DIALOG); Super.onattachedtowindow ();}2, 4.0 after the version, the processing method is as follows:Define a constant yourself first:Public static final int flag_homekey_dispatched = 0x80000000;Then, in OnCreate, add the code
element defined in theme. Dialog, and then use newdialogtheme instead of theme. Dialog in the android manifest file.
Differences between style and theme in usage
(Note that in this case style is not prefixed with the Android:Namespace; it is a custom local style and not one provided by the platform ).Styles can be taken one step further and used as themes. While a style refers toSet of attributes applied
Android style and themes)
When designing your program, you can use styles and themes to format various screen and UI elements.
A style is a set of one or more formatting attributes. You can use it as a unit to deploy a single element in XML. For example, you can define a style to define the font size and color of the t
1. notifications in Android
Generally, there is a status bar on the phone, showing the battery power, signal strength, missed calls, text messages .... A status bar is displayed at the top of the android screen. The notification here is to display the notification on this status bar.
To send a notification, follow these steps:
1). Get notification Manager
Ication
Android Material Design-Using the Material Theme (Using Material themes)-(2), materialandroid
Reprinted please indicate the source: http://blog.csdn.net/bbld_/article/details/40400519
The new material topic provides:
L allows you to set the system control of the palette.
L It is a control (designed) touch feedback animation.
L Activity transition Animation
You can control your customized material
The inevitable use of styles and themes in Android apps, styles that specify the height, font, font color, background of a general specified view, and the sample recommendation in Android are defined in the Style.xml file. A theme is also a style, but it is applied throughout the activity or application, not just the view. The two are basically the same, the bigg
In androidmanifest. XML, you can define the topic of the entire app or the topic of a single activity. The following example defines a topic for the application and activity respectively:
The next question is to define your own theme. In fact, theme is just a style set with a wider scope, therefore, the format of theme and style is the same. If you use eclipse to create a blank project of more than 4.0, you can see the following androidmanifest. xml:
View the content of @ style/apptheme to
From: http://rootfs.wordpress.com/2010/07/23/android-enable-home-screen-lock-and-home-key/
The lock pattern does not take effect after setting. And the home key does not work.
1. Frameworks/base/policies/phone/COM/Android/I
are not subject to their original constraints. In this way, the buttons are displayed on the status bar.You can modify the values of paddingright, paddingleft, and paddingtop to achieve the optimal visual effect.
3. Modify the height of the status bar.Now that you want to add a few buttons on the status bar, you certainly want to use the touch operation. The height of the status bar that comes with Android is too small and does not apply. For a 7-inc
Imitating the android QQ space today, the effect is as follows:
Open the startup screen and navigation page of the program and I will not do it. You can do it as easily as you can. This time, we mainly implement the Home Page. The layout of the home page is as follows:
Copy codeThe Code is as follows:
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