how to change wallpaper on android

In the \packages\apps\camera\src\com\android\camera\settingchecker.java:Case Row_setting_jpeg_quality:int jpegquality = getjpegquality (Context, Integer.parseint (value));Parameters.setjpegquality (jpegquality);BreakModified to:Case Row_setting_jpeg_quality:int jpegquality = 100;Parameters.setjpegquality (jpegquality);BreakCan.The scope of the jpegquality is 1~100, you can change it on demand, and the curre

(index); Is the data that gets the specified subscript index to int type; int id = cursor.getint (cursor.getcolumnindex ("id")) ; String named = cursor.getstring (Cursor.getcolumnindex ("name")); String number = cursor.getstring (Cursor.getcolumnindex ("number"));//Instantiate query result data Object person = new person (ID, named, number);} Close the database connection, release the Resource Db.close ();//Return the data result object return person; /** * Update a data based on name * * @para

http://blog.csdn.net/zhuhai__yizhi/article/details/44017609Recently started learning to use Android StudioWant to set the background color, but all the Internet search is copied and pastedAnd didn't write the right steps.I finally found out where I was after I messed up.1. Click Setting2, Editor inside Choose colors fonts, unfold. (If you select colors fonts directly, it will only show the top of the pre-saved settings, we can click Save As, and the

Create two styles in Res/drawable before/after clickingRound1"1.0"encoding="Utf-8"?>2"http://schemas.android.com/apk/res/android">3"0"is from left to right 90 is from top to bottom 180 is right to left---4Gradient5Android:startcolor="#4169E1"6Android:endcolor="#E6E6FA"7android:angle="0"/>8Stroke9Android:width="2DP"TenAndroid:color="#D2691E" One/> A"10dip"/> -padding -android:left="10DP" theandroid:top="10DP" -android:right="10DP" -Android:bottom="10DP

Now the Project menu under the build automatically removed, do not let it synchronize the compilation, wait a unified to compile. Select the package we need to change, right-click->refactor->rename, the following interface appears, select the previous three options, select Preview, the interface->ok can beContinue Now we can clean up our project; Select the project name->project->clean In this case, the class in the project may be wrong. Take

android:configchanges= "Orientation|keyboardhidden", before Android 3.2 (API level 13), the screen will recall the various lifecycles, The Onconfigurationchanged () method is not executed. You must add screensize to Configchanges after Android 3.2 to not recall the individual lifecycles when you cut the screen. and execute the onconfigurationchanged () method.The inconsistency between the test results and

Today met very speechless very pit demand, said to be installed in the application according to the parameters of the different dynamic generation of desktop icons, which is basically impossible in Android, there is a stackoverflow on the following sentence:You cannot change the application icon (or the Android manifest, or any other application resource for that

To meet this demand, first look at the picture:In fact, is a software login interface, the initial is the first figure, when the soft keyboard pop-up into the second figure, because the login interface has a user name, password, login button, not so the soft keyboard pop-up will cover the login button (in fact, before the implementation of the ScrollView inside, Listen to the soft keyboard popup after scrolling to the bottom, soft keyboard hidden after scrolling to the top, is also possible).The

Many Android apps have a Back button in the top left cornerBy default, ADT will default to a return iconAnd as a lot of development needs are required to customize a new iconFound 2 ways to change on Android's website1.Setting in the Java Code environmentActionBar = Getactionbar (); Actionbar.setdisplayhomeasupenabled (true); Actionbar.sethomeasupindicator (R.drawable.back);If you have an erro

In android, how does one change the main menu icon to the installation time?1. Add the following code to LauncherModel. java. If it is KK Launcher3 ApplicationInfo, replace it with AppInfo.Public static final Comparator Return new Comparator Public final int compare (ApplicationInfo a, ApplicationInfo B ){Return a. firstInstallTime = B. firstInstallTime? 0: a. firstInstallTime> B. firstInstallTime? 1:-1;}};

;LinearLayoutxmlns:android= "Http://schemas.android.com/apk/res/android"Xmlns:tools= "Http://schemas.android.com/tools"Android:layout_width= "Match_parent"Android:layout_height= "Match_parent"android:orientation= "vertical"Android:paddingbottom= "@dimen/activity_vertical_margin"Android:paddingleft= "@dimen/activity_horizontal_margin"Android:paddingright= "@dimen/activity_horizontal_margin"Android:paddingtop= "@dimen/activity_vertical_margin"Tools:cont

onconfigchangedOnsaveinstancestateOnPauseOnStopOnDestroyOnCreateOnStartOnrestoreinstancestateOnresumeOnconfigurationchanged5 Change android:configchanges= "orientation" to android:configchanges= "Orientation|keyboardhidden", cut horizontal screen, Just print onconfigchangedOnconfigurationchanged6 cutting back to the vertical screenOnconfigurationchangedOnconfigurationchangedSummarize:1, do not set the activity of the android:configchanges, the screen

Recently there are a lot of small partners want to update the SDK, but for various reasons, not updated, so today I teach you how to update the SDK under winThe first thing to do is to modify the system file hostsThe path basically is similar, oneself according to own system to lookThen use the tool such as text Viewer to open this file, if there is no permission, then find ways to add the ability to edit this file, such as right-click Properties to add Operation permissions,Open as:Then add the

After Android uses Zxing to scan the QR code and change it to a portrait screen, the preview screen is stretched and distorted. Perfect solution: After Android uses Zxing to scan the QR code and changes it to a portrait screen, the preview screen is stretched and distorted. Step 1: Find com.zxing.cameraPackage CameraConfigurationManager.javaFile void initFromC

Android Network-determine the Network status (Network connection, change, and determine 2G/3G/4G) Currently, most apps need to obtain data from the network. Therefore, it is inevitable to access the network. Before accessing the network, we should first determine the network status. In fact, before accessing the network, we need to make some status judgments and corresponding status judgments for processing

; %1$d expression means the entire Name= "Baoxiang" string, the first integral typeIn project developers, it is often necessary to combine the two. You can avoid many textview stitching, as shown below: TextView TextView = (TextView) Findviewbyid (R.id.testview); String Text = String.Format (Getresources (). getString (R.string.baoxiang), 2,"Silver Treasure Chest"); int index[] = new int[3]; index[0] = Text.indexof ("2"); index[1] = Text.indexof ("18"); index[2] =

Objective The Ormlite database is placed by default under databases, and sometimes you may need to use a database of preset data, and you may need to change the default path. Body 1, Inherit ormlitesqliteopenhelper: public class Sqlitehelperorm extends Ormlitesqliteopenhelper {public static final String Database_path = Environment . getExternalStorageDirectory () + "/test.db"; @Override public synchronized Sqlitedatabase getw

A very important feature of modern mobile devices is the direction in which the screen can be rotated. Of course, Android is no exception. Android supports two screen orientations: Portrait (vertical screen) and landscape (horizontal screen). By default, when you change the screen orientation of a handheld device, the current anctivity automatically redraw its co

= "Shakeservice";p rivate shakelistener mshakelistener;private vibrator vibrator; @Overridepublic void OnCreate () {//TODO auto-generated method Stubsuper.oncreate (); vibrator= (vibrator) Getbasecontext (). Getsystemservice (Context.vibrator_service); Mshakelistener=new Shakelistener (Getbasecontext ()); Mshakelistener.setonshakelistener (New Shakelistener.onshakelistener () {@Overridepublic void Onshake () {//TODO auto-generated method stub Mshakelistener.stop (); Startvibrator (); Vibrator.ca

Under Linux every file has a permission attribute, then how to use Java to change the permissions of a file in Android?There are two ways to change the permissions of a file in Android1. Using the Openfileoutput method:fileoutputstream Fos; = Openfileoutput ("filename", mode_world_readable);FileOutputStream android.content.ContextWrapper. Openfileoutput (String