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Backup and RecoveryThe Oracle database has three standard backup methods, namely export/import (EXP/IMP), hot and cold backup.Export/import is a logical backup, and cold and hot backups are physical backups.First, export/import (Export/import)With

First, let's briefly talk about the mechanism of alarmmanager: Global timer (also called alarm clock), which broadcasts a specified intent for us at a specific time in two forms: 1. execute an operation when the specified time arrives. If you have

1. Declaration in XML   2. Register in the code Intentfilter filter = new intentfilter ();Filter. addaction (wifimanager. network_state_changed_action );Filter. addaction (wifimanager. wifi_state_changed_action );Filter. addaction

Android UnionPay payment access reports nullexception exception Package com. example. ex_example; import java. io. byteArrayOutputStream; import java. io. inputStream; import java.net. URL; import java.net. URLConnection; import android. app.

EventBus communications expert and EventBus communications expert 1. EventBus Introduction EventBus is a lightweight Android event publishing/subscription framework developed by greenrobot. It features simple code and is a design pattern of

Android IntentService source code analysisIntentService Introduction: IntentService is. startService (Intent) starts a Service that can process asynchronous requests. When using this Service, you only need to inherit the IntentService and override

Android-mobile phone home location and landline home location query During the development of the Android project, there was a need to query the mobile phone and landline locations. However, Android itself did not find a database that provides the

Android service Introduction 1. What is service?2. How to Use Service3.ServiceLifecycle 1. What isService ServiceThe name is similar to the "service" that we normally understand. It runs in the background and can interact with each other. It is

1. Use Cases InBaseadapter, we often reuse convertview in the getview () method to improve performance.ConvertviewInItemFor a single layout of the same type, it can be recycled and reused, but multipleItemDifferent layout types,ConvertviewThere

/*** Log ** @ author Jenly **/public class LogUtils {private static final String TAG = "Jenly"; private static final String COLON = ":"; private static final String ARROW = "->";/** whether to display Log logs */private static boolean isShowLog =

In Android development, Sam can process resource files in two ways. One is to place all resource files and JNI programs in a separate resource package. When they are used, they are read using files. Alternatively, you can directly use the C ++ Layer

In android programming, the dialog box is very useful. However, sometimes the requirements for the dialog box are different. Now, we will summarize the types of the dialog box and the handling situation of the event. 1. Simple dialog

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,

From: http://www.ibm.com/developerworks/cn/opensource/os-cn-android-actvt/ Activity Lifecycle Like the MIDlet of j2m's, in Android, the lifecycle of the activity is handed over to the system for unified management. Unlike MIDlet, all the

The last time mediaplayer played Network Audio, it introduced mediaplayer's method of Network Audio buffering and progress bar control. This time I will explain how mediaplayer played network video. Playing a network video requires a surfaceview

Save the status by using annotations in the Activity.For more information, see http://blog.csdn.net/allen315#/article/details/43567229. Generally, when the onPause () and onStop () Methods of Activity are called during development, the Activity

Android NFC and androidnfc NFC introduction: Near Field Communication Near-Field Communication is a data transmission technology. A major difference from wifi, Bluetooth, infrared and other data transmission technologies is that the effective

As we all know, Android has its own security model. For details, see the android development documentation. When the application (.apk) is installed, a userid is assigned,When the application wants to access other resources, such as files, it needs

When parsing WAPPUSH over SMS, I checked the SMS receiving process in Android and recorded the process as needed. The detailed processing of other branches is not described. The encode/decode of the pdu data is not parsed in this article. If you are

Network operations are an essential part of the Android program for network communication. The Android platform has three network interfaces available: java.net. * (standard Java Interface), Org. apache HttpComponents interface and Android.net. *