Android

Android provides an Intent mechanism to assist in interaction and communication between applications. Or, to be more accurate, Intent can be used not only between applications, it can also be used for interaction between Activity/Service in an

Java codeProtected void onActivityResult (int requestCode, int resultCode, Intent data ){If (resultCode = RESULT_ OK ){// Take a photo or select an imageIf (requestCode = RESULT_CAPTURE_IMAGE | requestCode = RESULT_CHOOSE_IMAGE ){Try {Uri uri = data.

Today, I have been struggling for a long time. I use the Android api:[Java]Bitmap bitmap = imageMap. get (url );MediaStore. Images. Media. insertImage (getContentResolver (), bitmap, "myPhoto ","");Save the bitmap to the system album. The saved

In this chapter, we will learn the TabHost control. Each of the four students of Tang Miao has their own skills. It is difficult to put them together for display. Now we will use TabHost to display them separately, each is a separate view. First:   

Case reproduction:Modify the Setting in the Android 4.0 source code. After adding a function, compile it in eng mode. Everything works, and then submit the code to the server. The next day, there was a bad news. The newly added functions of Setting

1. Demo description and demonstrationThis Demo describes how to obtain the current Wallpaper in Android, modify Wallpaper, and then reset the Wallpaper with the modified image. Note that you must add the permission The Demo is as follows: 2. Video

I. MediaPlayer1. Obtain the MediaPlayer instance[Java]MediaPlayer. create (Context context, int resId); // parameter 1: Context object, parameter 2: Music Resource ID, which is generally placed in the raw folder. If there is no raw, create one by

The Input Method Editor (IME) is a control that allows users to input text. Android provides an extensible Input Method framework that allows applications to provide users with additional input methods, such as soft keyboard or voice input. Once

I saw the sharing SDK of moxun on the Internet and downloaded it. However, the function of selecting the image library is missing, so I can call the function of selecting a local image in the Image Library, if you are interested in moxun, you can

A few days ago, I received a request from the customer to create an Android mobile phone and screen saver on the Panel. In fact, it is quite strange that screen saver is used for computers, but when the phone is not used, is it OK to turn off the

Use canvas today. when the drawBitmap method draws an image, it finds a problem. When it is made in version 2.1, It is center-centered. When it is used in version 2.2, it finds the same image, but it cannot be centered. After reading the code, I

When constructing an Intent object, you must specify the operation to be triggered. The Android system defines several operations, including ACTION_SEND. As you guessed, this operation specifies that an Intent object needs an Activity to send data

After setting up your application to work with LocationManager, you can begin to obtain location updates. Set Up the Location ListenerThe LocationManager class exposes a number of methods for applications to receive location updates. in its simplest

Recently, the video is decoded to generate yuv data and then jpg images. The previous scheme is yuv-rgb-bmp-jpg, which is very slow. The calculation time is about Ms, multiple clicks on a photo may lead to video screen latency. Therefore, you can

1.1.1 synchronization and mutex in AndroidThe Android system also provides its own synchronization and mutex mechanism. However, the essence of any technology is similar. More is to apply these essential things to scenarios that meet your

The core code is as follows: MainActivity. java [Java]Package com. example. lession05_dbs; Import java. util. List; Import android. app. Activity;Import android. content. Intent;Import android.net. Uri;Import android. OS. Bundle;Import android. view.

In android, if you want to process images, you can call the system controls to achieve very good effects of scaling and cutting images. Today, I wrote a demo to share with you. Package cn. m15.test; import java. io. byteArrayOutputStream; import

After a period of time, half a year has passed, and the second version of the small features have been sorted out and promised to be released. Until today, we finally met you. The second version does not have many first versions, you can also refer

1. Quick use (ensure that ImageLoader is initialized only once, so that the image cache will be better .) Scenario: Set an image with a specified Uri for ImageView. 1. Export the package and configure the Internet and read/write SD card

First of all, let's take a look at several diagrams: (this is a weather forecast APP (moji) launched by 360, which is a good one. Here we will provide them with a free advertisement, haha .)[Java]This kind of listview with rounded corners looks