how to use wifi calling on android

. sendorderbroadcast (), and context. Send-stickbroadcast. After broadcastintent is sent, all registered broadcastreceiver with intentfilter matching it will be activated. This mechanism is widely used in notifications of device or system status changes. A common example is that when the battery_low power of Android is too low, the system sends a broadcast with the action as battery_low, then, any broadcastreceiver registered by intentfilter that can

is a solution. The idea is to let the control (ImageView) Calculate the height based on different devices, instead of computing by ourselves. What should we do? You have to use the onMeasure method mentioned in the previous blog. If you are not familiar with the measure/onMeasure method, you can take a look at Android custom controls Series 7: onMeasure () how to measure the size of a widget (I) and

, please ferry or put your dog. Simply put, you can use it as a service that shares music, videos, and images between different devices. For example, videos on a computer can be played on a mobile phone, pictures on your mobile phone can be viewed on your computer. You do not need to copy any images. Of course WiFi is needed. If you only have a wireless network card and do not have a wireless route, you can

1. SQLiteOpenHelper SQliteOpenHelper is an abstract class used to manage database creation and version management. To use it, you must implement its nCreate (SQLiteDatabase), onUpgrade (SQLiteDatabase, int, int) method. OnCreate: the database is executed when it is created for the first time, such as creating tables and initializing data. OnUpgrade: it is executed when the database needs to be updated, such as deleting a long-time table and creating a

tel:xxx such Intent, the corresponding human language is to call XXX phone , very elephant. And if you use type, it's a lot wider, like a browser receiving an unknown MIME type of data (such as a video ...). ), it will release such intent, the other system should be used to help, expressed as natural language should be: view PDF documents , such. Category . With action, with data or type, there are times when you can accurately express a complete i

"* * * * * * * * * * *" in the process of Android application development, we need to always pay attention to ensure the stability of the application and UI operation response timely, because the unstable or slow response to the application will bring bad impression on the app, serious users uninstall your app, so your efforts will not reflect the value of. This paper tries to explain the internal realization mechanism from the role of Asnyctask. If y

Introduction to Broadcast ReceiverBroadcast Receiver is one of the five major Android components and is frequently used.It is used to receive broadcast Intent asynchronously. The broadcast Intent is sent by calling Context. sendBroadcast () and BroadcastReceiver are used to receive broadcast Intent asynchronously. sendBroadcast (), Context. sendOrderedBroadcast () or Context. sendStickyBroadcast. Generally,

Preface Mobile devices use a variety of network environments and are often connected to insecure public WIFI-if you are not secure in public WIFI environments, it is no wonder that you are developing insecure programs and putting your users in danger-this is not an exaggeration. To securely use the network in an insecu

Android multi-thread Analysis 5: Use AsyncTask to asynchronously download images and androidasynctaskAndroid multi-thread Analysis 5: Use AsyncTask to asynchronously download images Luo chaohui (http://blog.csdn.net/kesalin) CC license, reprinted please indicate the source In the first article in this series, "Android

information Activity Show All activities information Cpuinfo displaying CPU information Window Show the keyboard, window, and their relationship Wifi Show WiFi information Batteryinfo $package _name Battery power information and CPU usage duration Package PackageName Get installation package In

Use Android-Debug-Database to view the App Database in the browser. Usage reference:Http://www.jianshu.com/p/89ccae3e590bSource Code address:Https://github.com/amitshekhariitbhu/Android-Debug-DatabaseFeatures: Add dependency:Add the following code in your build. gradle:1 debugCompile 'com. amitshekhar. android: debug-d

The internet is mostly 91 assistants for Android to connect mobile phones and computers, I am more inclined to pea pod, can be, the following gives my steps and process encountered a few small problems, for your reference! One, the mouse keyboard control mobile phone tutorial 1, on the PC, the installation of Pea pod, or 91 assistants for Android or install the Androi