Android

ListView is a commonly used control. Each Item in the ListView can be a string or a combination control. First, let's talk about the implementation of ListView: 1. Prepare the data to be displayed in ListView; 2. Use a one-dimensional or

Dialog title center problem: Use the AlertDialog of the system. when creating a dialog, if you need to display the dialog title in the center, you need to call. setCustomTitle (View view) method. This effect can be achieved by setting the center

Inherit the UncaughtExceptionHandler interface, and overwrite the uncaughtException (Thread thread, Throwable ex) method in it. In this way, you can monitor application exceptions and perform corresponding processing:Public class

In simple Android development tutorial 3: the first application Hello World has introduced the Hello world example. The Layout definitions of the two Hello world are slightly different: Android: id = "@ + id/text"Android: layout_width =

SetWallpaper describes how to get the current Wallpaper in Android, modify the Wallpaper, and then reset the Wallpaper with the modified image. WallpaperManager is used to manage Android Wallpaper. The following code uses WallpaperManager to obtain

In the Android operating system, an Activity containing the following attributes is displayed in the Application Manager (Launcher). Generally, this Activity corresponds to the main Activity of an application.In addition, if you want to add an app

The previous example shows how to use PreferenceActivity to display and modify application Preferences. users' modifications to Preferences are automatically stored in Shared Preferences corresponding to the application.This example describes how to

    The status bar at the bottom of the Android 4.0 desktop consists of three navigation keys on the left: The Return key, the Home key, and the RecentApplication key, which are used to view all recently opened applications, multi-task switching is

Package gongzi. co. cc; Import android. app. Activity;Import android. graphics. Canvas;Import android. graphics. Color;Import android. graphics. Paint;Import android. OS. Bundle;Import android. view. SurfaceView;Import android. view. View;Import

Google map is used by default in the Web tracking bee map service, but you can also choose other map services. For example, when Google is offline, you can choose the map service of MapAbc, note that there is an offset on the map of China. If you

Similar to the onMeasure process, ViewGroup calls its children's layout function in the onLayout function to set the position of the child view relative to the parent view. The specific position is determined by the parameter of the function layout,

I. IntroductionSlidingDrawer hides content outside the screen and allows users to display hidden content through handle. It can slide vertically or horizontally. It consists of two views. One is the handle that can be dragged, and the other is the

Android: layout_width = "fill_parent"Android: layout_height = "fill_parent"Android: orientation = "vertical"> Android: layout_width = "fill_parent"Android: layout_height = "wrap_content"Android: text = "@ string/hello"/> // Progress bar with a large

Jitter input boxJava code: Start an animation[Java]Animation shake = AnimationUtils. loadAnimation (this, R. anim. shake );FindViewById (R. id. pw). startAnimation (shake );Anim/shake. xml[Html]Android: duration= "5000"Android: fromXDelta =

First, the dialog is implemented in the previous section (click to connect). Now I will introduce the implementation of popupwindow, which is relatively simple to dialog because custom dialog is not required.The implementation code is as

I have been searching for articles about android Calling C/C ++ libraries for a long time, but there is no article about android Calling C ++ custom classes using jni, instead, I had to look at the android source code and learn how to implement the

The Buttons example describes how to define a Button and a ToggleButton. In this example, the definition of/res/layout/buttons_1.xml is as follows: Android: text = "@ string/buttons_0000normal"Android: layout_width = "wrap_content"Android:

The sharing functions in the Android program are divided into third-party program sharing, that is, using QQ space, QQ Weibo, Sina Weibo, Renren and other third-party packages for sharing;There is also the use of local programs to share, such as

[Java]Package com. umeng. example. analytics; Import java. util. HashMap; Import android. app. Activity;Import android. content. Context;Import android. OS. Bundle;Import android. support. v4.app. Fragment;Import android. view. LayoutInflater;Import

Android custom control implementation and Layout Android custom controls generally inherit the View class. Therefore, the implementation and corresponding layout of controls must be completed: 1. inherit the View class and implement the constructor