Android

  Display display = getWindowManager (). getDefaultDisplay (); // obtain the screen width and height. Window window = getWindow (); LayoutParams windowLayoutParams = window. getAttributes (); // obtain the current parameter value in the dialog

  In general, Android Application Development can meet our general needs through conventional development methods and code architecture. However, some special problems often lead to further meditation. We generate an epiphany from our meditation,

  The Android platform provides a wide range of Network Interfaces. It is even more difficult to obtain the network access method set by the mobile phone, so it is very convenient for development.Activity provides the ConnectivityManager interface

  For the implementation of Animation, Android provides Animation and introduces two Animation modes in Android SDK:   1. Tween Animation: A gradient Animation is generated by constantly performing image transformations (translation, scaling, and

Text message section:For short message sending, the Framework starts from sendTextMessage (common short message without segmentation) and sendMultipartTextMessage (long short message, segmented) of SmsManager until RIL. The main classes involved are.

  First, let's take a look at texture. An image is called a texture after it is decoded from the original format and uploaded to the GPU. (To be honest, I am not very clear about this definition. Please advise) In order to draw texture, ry is often

 Preface I am relatively lazy, but I am very active in studying how to make people become lazy... The latest android SDK 4.0, monkey, and monkeyRunner have changed a lot... By default, the operation fails... Shard, although the monkey and

(1) custom View class import android. content. context; import android. content. res. typedArray; import android. graphics. canvas; import android. graphics. color; import android. graphics. paint; import android. util. attributeSet; import android.

First, let's look at the implementation of this program: the five ImageButton in the figure implement different functions: 1. increase the volume. reduce Volume 3. adjust the Mobile Phone mode to normal 4. adjust the Phone mode to mute 5. the

[Java] package cn.itcast.net; import java. io. inputStream; import java. io. outputStream; import java.net. httpURLConnection; import java.net. URL; import java.net. URLEncoder; import java. util. arrayList; import java. util. hashMap; import java.

Robotium code parsing: [java]/** This is an example test project created in Eclipse to test NotePad which is a sample * project located in AndroidSDK/samples/android-11/NotePad *** You can run these test cases either on the emulator or on device.

[Java] package c. c; import android. OS. bundle; import android. webkit. webView; import android. app. activity; public class MainActivity extends Activity {private WebView mWebView; @ Override protected void onCreate (Bundle savedInstanceState)

Service concept and purpose: A service is an application component that can perform long-running operations in the background and does not provide a user interface. Generally, a service is used to perform time-consuming operations, or perform

[Java] package cn. itcast. code; import android. app. activity; import android. OS. bundle; import android. view. viewGroup; import android. widget. linearLayout; import android. widget. textView; public class MainActivity extends Activity {/**

Five classes are required: 1. entity class: Person. java2. abstract class: SQLOperate. java (encapsulates Database Operations) 3. helper class: DBOpenHelper. java (inherit from SQLiteOpenHelper) 4. implementation class: SQLOperateImpl. java

The effect is as follows: Look at the layout file as follows: [html] code implementation: [java] public class MainActivity extends Activity {/********** By: lixiaodaoaaa QQ: 346825741 http://t.qq.com/lixiaodaoaaa/ ******

As android development engineers, they often deal with the android system code. If the system code is modified and a new java class is implemented, when eclipse engineers need to use it, they must reference the jar package before it can be compiled.

Main. xml file: 01 02 07 12 17 23 24 listview_item.xml file: 01 02 09 10 15 21 22 MainActivity. java001package com. yyy. testandroid; 002 003 004 005 import java. util. arrayList; 006 007 import android. app. activity; 008 import android.

Remove the black shadow of the edge when the ListView slides to the top and bottom: android: fadingEdge = "none" -------------------------------------------- remove the default black background when dragging: android: cacheColorHint = "#00000000" or

1: What is Application? Like Activity and Service, Application is a system component of the android framework. When the android program starts, the system creates an application object to store some information about the system. Generally, we do not