Android

There are two unique identifiers:DeviceId indicates the unique device ID. For example, if an IMEI is returned for a GSM mobile phone, the MEID is returned for a CDMA mobile phone. ANDROID_ID indicates a 64-bit number, which is randomly generated

In this chapter, we will talk about the use of AutoCompleteTextView in the automatic prompt box. I believe that when we use Baidu, Google, and other search engines, we enter a word in the input box, and related prompts will appear below the input

As we all know, the following two methods cannot be used to listen to the Return key event: [java] view plaincopyprint?@ OverridePublic void onBackPressed (){// Do something// Super. onBackPressed ();}@ OverridePublic boolean onKeyDown (int keyCode,

In Android development, in order to ensure that the UI thread can respond in a timely manner and avoid time-consuming operations, the interface may be suspended or even ANR. We usually put time-consuming operations such as downloading and querying

In android, timers are commonly used in the following ways:I. Use the Handler and thread sleep (long) Methods2. Use the postDelayed (Runnable, long) method of Handler3. Handler is used in combination with timer and TimerTask. Next we will introduce

Learn and develop at the beginning. Please correct the error Recently, I encountered a problem where parameter passing is required for Android listening events in the project. For example, in ListView, some variable data has a CheckBox, which should

The action of the Image Library on JB and JB2 is: horizontal screen full screen display, and vertical screen display status bar. How to make the portrait screen do not show the status bar. Modify toggleStatusBarByOrientation () method in

        Dialing project:                       Activity_phone.xml [Html]Xmlns: tools = "http://schemas.android.com/tools"Android: layout_width = "match_parent"Android: layout_height = "match_parent"Android: paddingBottom = "@

1. background selector (IN res/drawable/, usage: android: background = "@ drawable/XXX ")   2. text color selector (IN res/color/, usage: android: textColor = "@ color/XXX ") Note: android: color is not displayed when res/drawable/XXX.

Usage: (makeMtk | mk) [options] project actions [modules] Options:-T,-tee: Print log information on the standard-out.-O,-opt = bypass_argument_to_make: Pass extra arguments to make. -H,-help: Print this message and exit. Projects:One of available

The following describes ProgressBar in detail. I. Description The visual indicator in the progress of some operations shows the operation progress for the user, and it also has a secondary progress bar to display the intermediate progress, such as

You can control the SeekBar and drag it. For example, you can use a drag bar to control the volume in an application. 1. Use of the SeekBar Control 1.1SeekBar common attributes Common attributes of SeekBar include: Android: max [integer] // you can

Overview There are two ways to use Camera: using an existing app through Intent and building your own app through Camera. Camera statements If your application wants to use Camera, you must obtain the license and add the following statement to

Based on previous experiences, the network communication of application software is nothing more than Socket and HTTP, where Socket can use TCP and UDP, and there are many methods derived from HTTP, basic http get and POST requests, followed by

1. the main differences between themes and styles are as follows: A topic cannot be used to form a single View. A topic should take effect for all the activities in the application or for the specified Activity. The format of the theme definition

In Android learning, we often import engineering source code for learning, but some engineering source code imports will show a large red exclamation mark, and then The project was not built since its build path is incomplete. Cannot find the class

The company needs to add a switch in the camera application to enable or disable the camera sound. In the previous article, the system mute property is used to solve the problem of mute without camera sound. It is determined by the camera playsound (

We all know that the rational use of system resources to reduce the number of systems that are not occupying too much is a question that every developer must think about. As we all know, an application is composed of a series of Activities with

-For account management, the IAccountManager interface describes a group of related behaviors.-AccountManagerService is a system service for Android. It implements the behavior defined by the IAccountManager interface. The implementation of these

import android.annotation.SuppressLint;import android.content.Context;import android.view.View;import android.widget.Toast;public class ToastUtil {private static Toast toast;private static View view;private ToastUtil()