Android

Obtain the network connection status With the promotion of 3G and Wifi, more and more Android applications need to call network resources, and detection of network connection status has become a necessary function for network applications. The

Reading doc files in Android requires a third-party jar package tm-extractors-0.4.jar, the reading process is very simple Similar to common file stream operations, the following is a simple example: Package com. word. read; Import java. io.

Add the Back key or other functions to the Action Bar to check the effect.   [Java]/* Display the back key on the left of the App icon */ActionBar actionBar = getActionBar ();ActionBar. setDisplayHomeAsUpEnabled (true ); /* Display the back key on

When coding, every activity will certainly call the onCreate method, but the savedInstanceState parameter in the onCreate method is rarely used, which is often ignored. From the perspective of its name, it should be used to save the activity status.

During the UI design, we often need to set the screen to no title bar or full screen. It is also very easy to implement. There are two main methods: Configuring the xml file and writing the code settings. 1. Configure in the xml file In the

Write a script to view the apk signature using shell. Very few and very simple codes #! /Bin/bashMypath = 'pwd'Filepath = ""Mkdir. temp_for_certificateCd. temp_for_certificateCount = 0While [-n "$1"]DoCount = $ [$ count + 1]Echo "(# $ count)"

The overall android audio includes the android layer and the underlying ASLA driver. Recently, I started to call the 3G Function and then began to access the android audio architecture. I had some experience debugging the sound card before. However,

Modify the following code in \ packages \ apps \ Camera \ res \ values \ arrays. xml: @ string/pref_camera_continuous_number_normal @ string/pref_camera_continuous_number_large   40 99 You need to add two items in entries and

The Button inherits from TextView, so some attributes of TextView also apply to the Button control. The direct subclass of the Button is CompoundButton. The indirect subclasses of a Button include CheckButton, RadioButton, Switch, and ToggleButton. 1

[Html]In the development of android projects, you need to use the command line to execute the program, obtain the result after the command line is executed and process it. In the development of android projects, you need to use the command line to

The Android Application and the Activity and Service are both components of the Android framework. This Application is usually automatically created when the app is started. The Application is a singleton mode in the app, and the Application is the

When you hear about binary search, you may think it is very simple and will naturally ignore it. So is there anything worth noting in implementing this seemingly simple algorithm?Below is the implementation of a binary search I wrote.Int

Main. xml:The Code is as follows:Android: orientation = "vertical"Android: layout_width = "fill_parent"Android: layout_height = "fill_parent">Android: layout_width = "fill_parent"Android: layout_height = "wrap_content"Android: text = ""/>Android:

In the Android project folder, the main resource files are stored in the res folder.1: The assets folder is a native file that is not compiled and processed, that is, the files in this folder are not like xml, java files are pre-compiled, and some

If the backlight gradient process causes the backlight to flash, you can modify it in any of the following ways: Method 1. reduce adjustment level time http://blog.csdn.net/sergeycaoBy default, the screen-Off animation is triggered when the

File: a commonly used File (I/O) storage method that stores a large amount of data. However, updating data is difficult.   The following implementation: use the file generated by the local data file to process new storage, read and delete data If

[Java] // audio volumeIntstreamVolume;// Define the SoundPool objectPrivateSoundPoolsoundPool;// Define the HASH tablePrivateHashMapsoundPoolMap;/*************************************** ************************* Function: initSounds ();* Parameters:

To learn a new programming language, data types are the most basic. Here we will talk about the data types in jni. In JNI, data types are divided into three types: Primitive type: int float char Reference type: class instances arrays String type In

A class for obtaining wireless wif signals, ssid, MAC, and other operations in android. WifiAdmin. java Package com. afu; import java. util. list; import android. content. context; import android.net. wifi. scanResult; import android.net. wifi.

Problem description: In the Activity, startActivityForResult (intent, requestCode) is used to activate AnotherActivity.When AnotherActivity is executed:Intent intent = new Intent ();Intent. putExtra ("test", "hello ");SetResult (RESULT_ OK, intent )