Android

This time we will introduce the Tab control of Android. The Tab control can achieve the paging effect, so that the content of a screen can be as rich as possible. Of course, it will also increase the complexity of development, use it again when

The last time we introduced the use of Activity and Intent, this time we will introduce Service. If Activity is compared to a foreground program, Service is a background program, and the entire life cycle of Service is only executed in the

The last time I explained the basic usage of Android Bluetooth, I went into depth and discussed the hidden APIs of Bluetooth. Anyone who has used Android settings (Setting) knows that pairing and unpairing can be established after Bluetooth search,

Last time I introduced how to use the reflection mechanism of JAVA to call the hidden APIs of Bluetooth. This time I continued to practice the reflection mechanism of JAVA and explored several functions that TelephonyManager contains in the

Question 1: Copying: out/target/common/obj/JAVA_LIBRARIES/core_intermediates/classes-full-debug.jar Install: out/host/linux-x86/framework/dx. jar Install: out/host/linux-x86/bin/dx Host Executable: aapt

Analysis of the insert () method in android SqLite     Android provides a class named SQLiteDatabase, which encapsulates APIs for database operations. This class can be used to Create, query, and Update data) and Delete operations (CRUD ). For

In this example, the focus is on how to use SensorManager. SENSOR_ACCELEROMETER to determine the device's moving direction: the result is displayed in Log mode rather than in graphics mode, so the arrow displayed in this example is always up. This

This is an example of a custom library.   Usage and precautions: 1. Place the voice library Aisound. so in: Libs \ armeabi \ libAisound. so. Note: The libraries in the armeabi directory must be prefixed with lib to facilitate calling.   2. resource.

Based on a copy of the code (http://code.google.com/p/android-ilbc/) of the google site mentioned in the previous article, this requires git download, I uploaded a copy in CSDN,Slightly modified: Download link :(

As a flat application, the back home at the bottom and the status bar of the battery WIFI cannot be set to full screen. Later, I found a better method. Add a line of statement in OnCreate before setContentView: GetWindow (). getDecorView ().

Performance Improvement There are two basic rules for writing valid code: 1: Don't Do What You Don't Need To Do.2: do not allocate unnecessary memory. Avoid creating unnecessary objects, such: 1: When extracting strings from a group of input data,

In Android, Animation is everywhere. Different activities are switched and different views are switched. The list is displayed and all tables can be animated. Android ApiDemos (3): App-> Activity-> Animation: This section describes the fade-in and

The telephone recording service only performs internal recording and calls the PhoneManager object. In many cases, the service needs to communicate with other programs after processing the business .. StartService () and stopService () are

BUTTON class structure:   From the class structure diagram, we can see that the Button is inherited from TextView, so some attributes of TextView also apply to the Button control. ImageButton class structure:   ImageButton uses an icon to represent

In this example. screen Top, 2. screen Bottom, 3. scroll introduces the usage of AutoCompleteTextView. The difference is that the Layout position in AutoCompleteTextView is different. You can see that the AutoCompleteTextView automatically selects a

I wrote an article about photo upload some time ago, but later I found that the images uploaded in that way were processed by the android system, not the original image, that is, compressed images, the image will become very small. Today I am trying

Andling affinitiesProcessing affinity The affinity indicates which task an activity prefers to belong.By default, all the activities from the same application have an affinity for each other.So, by default, all activities in the same application

We all know that the height of the control obtained in onCreate () is 0. Why? Let's take a look at the example:First, we can write a control, which is very simple:[Java]Public class MyImageView extends ImageView { Public MyImageView (Context context,

1Create a custom Menu ----> TabMenu. java as follows:001Package com. ncw;002 003Import android. content. Context;004Import android. graphics. Color;005Import android. graphics. drawable. ColorDrawable;006Import android. view. Gravity;007Import

Transparent images and irregular images are often used in projects, especially when playing games. Special processing is required for click events in the transparent area of images.The one-stop FIFO card file transparent.png is transparent to the