Android

activity.startactivities () is often used to start other activity in the middle of an application. textutils.isempty () simple tool class for detecting whether null html.fromhtml () is used to generate an Html, and the argument can be a string.

If you want to analyze the network data interaction of an app on Android, you need to grab a packet on Android phones, the most commonly used grab kit is tcpdump, generate Wireshark pcap files with tcpdump, and then download pcap files to your

This article describes the Android implementation of the click on the Alertdialog button when the dialog box does not close the method. Share to everyone for your reference. Specifically as follows: In the development process, there are times when

The example in this article describes how Android saves activity state. Share to everyone for your reference, specific as follows: If you want to save information about an activity (for example, a variable of a class instance) without having to

1. The effect chart is as follows: The user experience is still cool, so today we're going to talk about how to achieve this effect. 2, analysis In order to facilitate understanding, drawing analysis As the picture shows, the entire page is

"WebView loads local HTML, native apk HTML, and remote URLs" Copy Code code as follows: Open the index.html file in the asset directory in this package Wview.loadurl ("file:///android_asset/index.html"); Open the index.html file

This example for you to share the Android open camera and photo album specific code for your reference, the specific contents are as follows Turn on the camera /** * Select camera /private void Showcamera () { //Jump to System

This example describes the implementation of the Android notification bar. Share to everyone for your reference, specific as follows: These days have been modifying the source code of Twigee, one of the features to join IS resident notification bar,

The example of this article describes the implementation of UDP for the development of socket programming in Android. Share to everyone for your reference. The specific analysis is as follows: Need to implement the function: the use of UDP socket

The example of this article describes the implementation of menu key function of Android programming. Share to everyone for your reference. The specific analysis is as follows: The Android app can eject a menu with menu keys and now pops a menu

This example describes the IP2ID program for Android programming. Share to everyone for your reference. The specific analysis is as follows: One, Description: Company a project needs to give a series of network equipment allocation ID number, ID

This article describes how to use caching to improve the flow of load input and sliding for the UI. Using memory caching, using disk caching, handling configuration change events, and so on, will solve this problem effectively. Displaying a single

The example in this article describes how Android simply determines whether a APK has been installed. Share to everyone for your reference, specific as follows: Privateboolean isappinstalled (String uri) { Packagemanager pm = Getpackagemanager (

We sometimes want the first line of ListView to get the focus automatically, and we'll use View.requestfocus (0) to do it, and occasionally it won't work, and debug will show Rerurn false. This is because we get the focus too early, and the

Android List Component ListView A list component is a component that is often used in development and is used to provide an adapter for it, provided by the adapter to determine the display style and display data. Let's look at an example: Create

How ugly the Android button is, and how monotonous the effect is, is obvious to everyone.To do an app without the use of buttons, a good-looking button without the effect and appearance, this is mainly to tell you how to use drawable XML file to get

Android pictures around the switch can be seen everywhere, today I also try to look up data to try to do a bit, quite simple a small demo, but also found some problems, words not to say, on the code ~: Using 3 XML files as Viewpager sliding page,

This article introduces the basics of Android programming to a simple example of an earlier instance program where readers can learn more about the evolution of the Android program to deepen their understanding of Android programming. The biggest

What is Appwidget? Appwidget is what we usually see on the desktop of the kind of small window, the use of this small window can provide users with some convenient and efficient operation. This article intends to introduce appwidget from the

Cause of serialization The reasons for serialization can be summed up in the following three situations: 1. Permanently save the object, save the object's byte sequence to the local file;2. The object is transmitted in the network;3. Objects are