Android

An Intent is something that is used right now; a PendingIntent is something that may create an Intent in the future. You will use a PendingIntent with Notifications, AlarmManager, etc.Notification n = new Notification (R. drawable. face_1, "Service

When the same variable is often used in multiple activities, use Bundle to set each call to the Activity. In android, you can use Application context to conveniently use the same variables repeatedly for different activities in the entire

An efficient list adapter demo is provided in the Android api demo, which contains two recommended efficient principles. 1. In the getView method, use convertView again. convertView is the old View. We recommend that you first determine whether it

Android: launchMode This attribute defines a command to start the Activity. There are four working modes that will be combined with the Activity tag (FLAG_ACTIVITY _ * constant) in the Intent object to determine what should happen when the called

This article records two minor issues encountered during development.1. In many cases, you need to use java code to change the font color and password display mode, and use java code to create a control and layout, the problem encountered this time

Find two encryption algorithms, one MD5 encryption, which is applicable to password encryption, because this algorithm is irreversible; the other is RSA encryption, Which is reversible: 1. MD5 Encryption Import java. security. MessageDigest; Public

First look at the code[Java]TextView. setLayoutParams (new TextSwitcher. LayoutParams (LayoutParams. FILL_PARENT, LayoutParams. FILL_PARENT )); Why use LayoutParams of TextSwitcher. Check the API and you will see These supply parameters to the

The principle of lyrics synchronization is actually very simple:The display of the lyrics is a thread. During music playback, a thread synchronizes the display progress of the lyrics with the playback progress.The standard network lyrics are LRC.

Var old: float;Var news: float;Var h: float;Var d: float;Var v: float;Var a: float;Function Start (){H = 0;D = 0;Old = Input. acceleration. z;News = 0;V = 0;}Function FixedUpdate (){News = Input. acceleration. z;A = news * 9.81;If (a>-10.2 & a If (v>

Keywords: android desktop shortcut plug-inPlatform: S5PC110 S5PV210System: android2.3 android2.3.41. Mainly changed the file android2.3.4 _ GB_T34H \ packages \ apps \ Launcher2 \ res \ xml \ default_workspace.xml Code Description: Now you can

1. The Android system supports three fonts by default: "sans", "serif", and "monospace ".2. Other fonts can be introduced in Android. Android: layout_width = "fill_parent"Android: layout_height = "fill_parent"> Android: layout_marginRight =

Many netizens may find that the mobile QQ Android version launched by Tencent recently contains an opening Screen Splash Screen loading effect. Generally, a game or a large software may need a process to release resolution resources, it requires the

Public void onCreateContextMenu (ContextMenu menu, View v, ContextMenu. ContextMenuInfo menuInfo) This method is called when the context menu of the View object is displayed. Unlike onCreateOptionMenu (Menu, MenuInflater), this method is called

------------ BootBroadcastReceiver. javaPackage youbanwang. co. cc; Import android. content. BroadcastReceiver;Import android. content. Context;Import android. content. Intent; Public class BootBroadcastReceiver extends BroadcastReceiver {Final

Horizontal line gradient [Html] Android: shape = "rectangle">Android: startColor = "# ff111111"Android: centerColor = "# ffefefef"Android: endColor = "# ff111111"/>Android: shape = "rectangle">Android: startColor = "# ff111111"Android: centerColor =

FrameLayout is a "locator" on the screen that can be used to display a single view. Views added to FrameLayout are always fixed in the upper left corner of the layout. Consider the following code:  Android: id = "@ + id/RLayout" Android:

1. 2. android: id = "@ + id/imgView"3. android: layout_width = "fill_parent"4. android: layout_height = "fill_parent"5./> 1. public void onCreate (Bundle savedInstanceState ){2. super. onCreate (savedInstanceState );3. setContentView (R. layout.

--- XmlAndroid: layout_width = "fill_parent"Android: layout_height = "wrap_content"Android: orientation = "vertical">Android: layout_width = "fill_parent"Android: layout_height = "wrap_content"Android: gravity = "center"Android: orientation =

First, obtain the album image:Private final String IMAGE_TYPE = "image /*";Private final int IMAGE_CODE = 0; // The IMAGE_CODE here is defined by yourself.// Use intent to call the album function provided by the system. startActivityForResult is

In appWidget, events can be divided into three types:A. Enable ActivityB. Start ServiceC. Send button ActionThe following describes how to implement the analysis one by one. 2.1 enable Activity2.11 first define an intent for enabling the ActivityEg: