how to change wallpaper on android

Just turned into Android Studio and was not familiar with some of the operations in as, so record ...Change the code hint shortcut in as, as do is also very smart, in Keymap can choose to use Eclipse shortcut key settings, but although set up, for some shortcut keys still can't use, then we need to manually modify. In the code hint as the default shortcut key is Ctrl+alt+space, anyway I am not used to, or

RadiogroupRadiogroup Android:id="@+id/client_charge_radiogroup"Android:layout_width="200DP"Android:layout_height="40DP"Android:layout_marginleft="5DP"Android:layout_alignparentright="true"Android:fadingedge="None"android:gravity="center_vertical"android:layout_centervertical="true"android:orientation="Horizontal"> RadioButton Android:id="@+id/client_radio_label"Android:layout_width="0DP"Android:layout_height="match_parent"Android:layout_weight="1"Android:button="@color/transparent"android:gravit

); return result; /** * Android 4.0 calls this method to get the database. * * @see android.content.contextwrapper#openorcreatedatabase (java.lang.String, int, * Andro Id.database.sqlite.SQLiteDatabase.CursorFactory, * android.database.DatabaseErrorHandler) * @ Param Name * @param mode * @param factory * @param errorhandler * * * @Override Public sqlitedatabase openorcreatedatabase (String name, int mode, Cursorfactory factory, Databa

); /*Get edit box*/edit1_=(EditText) Findviewbyid (r.id.id_edittext_1); /*Listen for text change events in the edit box*/Edit1_.addtextchangedlistener (NewTextwatcher () {@Override Public voidOnTextChanged (Charsequence S,intStartintBefore,intcount) { /*+ + The text changes every time you run this method + +*/ if(NULL!=text_) {Text_.settext ("you are entering ... \ n the current cursor is in the"+Start+"location \ n You c

Change the linux/android startup logo Change the linux or android startup logo: Run makemcnuconfig in the root directory of the linux kernel source code and go to the following levels: -> DeviceDrivers -> Graphicssupport Select help to View Details: CONFIG_LOGO: Enableandselectframebufferbootuplogos. Symbol: LOGO [= y]

, similar to I/ODbwrite.close ();Note: Location information is filled here is null, the specific operation is not clear, but when you see here, there is time to studyBy obtaining a readable database object, the method implementing the lookup in the target database is implemented with code:Sqlitedatabase DB = db.getreadabledatabase ();Creates a new cursor object that indicates the lookup in the "User" data table, followed by a series of constraints,= Db.query ("user",null,null,null, NULL,null,nul

Download the android simulator and decompress it to get the android-sdk-linux_x86 folder Go to android-sdk-linux_x86/tools/ Execute./android to create a test virtual phone Start the virtual phone and change the partition size to 128 MB. ./Emulator-AVD test-partition-size

centralized management of configuration files ) In this Ant Packaging Requirements , You need to modify Java Two constant attributes in the file . Based on such requirements , First Http://blog.csdn.net/to_cm/article/details/6051470 Normal Android Project package Build. XML, And Build. Property. It should be noted that , Because Android SDK tool, And Platform tools Some upgrades , P

1. Right-click on the project, select the Android tools->rename application package, enter the name you want to change, and select the packages you want to change, some of which may not need to be renamed.2, the previous step did not modify the source code package, just the project involved in the name of the place changed, the following changes in the source of

the target apk corresponding file to test. Including the subsequent switch statements are also analyzed, the following look at the print Toast Smali statement (in the actual case may need to change the variable name, because it may be followed by the variable name conflict)Const-string V0, "This is a test" const/16 v1, 0x3e8 invoke-static {p0, V0, v1}, Landroid/widget/toast;->maket Ext (landroid/content/context; Ljava/lang/charsequence;i) Landr

file, you must ensure that the parameters inside the String.Format method are not less than the number of formatted parameters defined in the string resource (practice proves that the arguments are not reported as exceptions), such as in the example above, the string has four formatting parameter, if the code is written like this:showtodaystate (int totaluser, float uprate, String hornor)//less level parameterThe following exception will be reported:Iv. References:1, modify the Strings.xml file

Change version1. Right-click-->properties2.android. Change the required versionwatermark/2/text/ahr0cdovl2jsb2cuy3nkbi5uzxqvdtaxmzqyntuynw==/font/5a6l5l2t/fontsize/400/fill/i0jbqkfcma==/ Dissolve/70/gravity/southeast ">3.apply-->okwatermark/2/text/ahr0cdovl2jsb2cuy3nkbi5uzxqvdtaxmzqyntuynw==/font/5a6l5l2t/fontsize/400/fill/i0jbqkfcma==/ Dissolve/70/gravity/southe

For projects that have been established, if the original project name is found to be inappropriate, if you want to completely change the project name, you need three steps:1. Change the project nameSelect the project name and right-click-->refactor-->rename.2. Change the package name under the src fileSelect the package name and

file.Listview.xml, in a color way, you can't use listselector here.List_item_color.xml, set the background directly in the item's layout by using the color settingsandroid:background= "@drawable/list_item_color_bg" >2. Background mapThis approach is to use the picture in the selector file to set the background of item, whether it is to set the android:listselector of the ListView or the way to set the android:background of the item, However, it is best to use Android:background, as the default

In order to achieve better user interaction, you often need to change the background color of the button and the font color of the textview to indicate the operational status of the user's current menu, android provides a method to define a selector so that programmers can configure the background and color values in advance. The specific method is as follows: 1. Button (imagebutton, imageview, including ge

When there is nothing going on today, the router finds that the device name displayed when the mobile phone is connected is too ugly, So I want to change it. The following methods are available after searching on the Internet: This method is suitable for all users, even if you do not program It would be better if you have brushed the machine. First, you need to download the ADB tool, which is used to connect to your mobile phone and perform

Android icon coloring to save the APK volume, there are many online introduction, the use is very simpleUsually use this way, you have to change the code today, so recordFirst KindDrawable icon;if (Android.os.Build.VERSION.SDK_INT The second kind, need V4 packageDrawable icon1;if (Android.os.Build.VERSION.SDK_INT Well, all two can be achieved. I don't know which one is better.There are a lot of related info

can fix this problem by setting the following properties for the ListViewAndroid:cachecolorhint= "@android: Color/transparent"When you click on a ListView item, you'll notice that the background color of the item turns orange. You can fix this problem by setting the following properties for the ListViewAndroid:listselector= "@android: Color/transparent"All two of the above properties are set to the backgro

important to note:1, if only one edittext need to use a special style is directly in the current EditText to set properties, but for extensibility, it is recommended to write in Styles.xml, later in the edittext required to refer to the style, that is:Edittext...style= "@style/edittextstyle" ... />2, if the whole project is unified style, then in the Androidmanifest.xml 3. The style of Edittextstyle is as follows:This article is only a point, about the EditText attribute also many, we can test,

Http://www.androidren.com/index.php?qa=282qa_1=android JS calls Java code or uses JavaScript-related techniques to change how to confuseAndroid 4.2 Start JS call Java code must add @JavascriptInterface to call. Add @JavascriptInterface after you have to consider the confusion of the time of the problem, if confused when the @JavascriptInterface lost your program can not be called. It's really simple, you ju