Android

NDK compiles FFMpeg [Linux] And ndk compiles ffmpeglinux I recently studied live video technology and learned about FFmpeg. I checked how to port FFmpeg to Android on the Internet and checked it for a few days. I saw a lot of things, that is, none

Android parses XML files and generates XML files, androidxml Parse XML files public static void initXML(Context context) { //can't create in /data/media/0 because permission //can create in /sdcard/hotel File mSettings = new

SharePreference tool class encapsulation and sharepreference Encapsulation Import java. util. List;Import java. util. Map;Import java. util. Set;Import com. alibaba. fastjson. JSON;Import android. annotation. SuppressLint;Import android. annotation.

FloatingActionButton and floatingactionbutton I. Introduction This class is inherited from ImageView, so we can use all attributes of ImageView for this control. android.support.design.widget.FloatingActionButton   2. Prepare for use, and write in

Android custom title TitleView, androidtitleview During Android development, we often encounter a project that needs to repeatedly define the title bar of the same style. Android has successively launched actionBar and toolBar. I believe that useful

Eclipse's "Running Android Lint has encountered a problem" solution, androidlint Install eclipse for android error records, reproduced from: http://blog.csdn.net/chenyufeng1991/article/details/47442555 (1) Open Preferences. In Windows, choose

Android learning Activity preliminary, androidactivity Activity, as the first step of Android development, summarizes the preliminary understanding in the study to facilitate future review and reflection. 1. When Android Studio is used to generate

Fragment, androidfragment Fragment is lightweight and faster than Activity. It is suitable for page jumps in the same APP. 1: Enable a fragment in MainActivity: public class MainActivity extends AppCompatActivity implements

Android implements image Flash Animation and Android image Flash Animation When you use an APP, some apps will have a small microphone after you click the voice search interface. The microphone will flash like a radar, it means you are listening to

Picasso rounded corner and picasso rounded corner   Package liu. roundimagedemo. view; import android. graphics. bitmap; import android. graphics. bitmapShader; import android. graphics. canvas; import android. graphics. paint; import com. squareup.

Android programming client communication with the server through socket Android programming client communication with the server through socket This article describes how the Android programming client communicates with the server through socket. We

Android Studio development RecyclerView Problems and Solutions (1), studiorecyclerview ListView has been used in the past. Recently, it was found that RecyclerView is powerful. The premise of RecyclerView is that the Android version is later than 5.0

Press the secondary return key to exit. @ Override public boolean onKeyDown (int keyCode, KeyEvent event) {if (keyCode = KeyEvent. KEYCODE_BACK) {exit (); return false;} return super. onKeyDown (keyCode, event);} private long exitTime = 0; public

Android ProgressBar preliminary application, androidprogressbar Here, you can use ProgressBar to instantly display the download progress. Problems encountered on the way: 1. URLs cannot be opened in the main thread, and Toast can only be used in the

GetFragmentManager () and getSupportFragmentManager (), getfragmentmanager Fragment is indispensable in Android development. Currently in practical use, there are v-4 package support Fragment and Fragment under the app package, the two packages of

CircleImageView and Cardview, circleimageview Effect:       Circular portraits are common in our daily apps, because they are more beautiful. Using a circular image, we may crop the image into a circular image and then use it in the app, The custom

Android uses pull, sax to parse xml, androidpullPull parses xml files 1. Get reference of XmlpullParser class There are two methods // Parser factory XmlPullParserFactory factory = XmlPullParserFactory. newInstance (); XmlPullParser pullParser =

ImageView learning, imageview   Package liu. roundimagedemo. view; import android. content. context; import android. graphics. bitmap; import android. graphics. bitmapFactory; import android. graphics. drawable. drawable; import android. OS.

It is implicitly started to determine whether a matching Intent exists and to determine whether a matching intent exists. 1. resolveActivity of PackageManager Public abstract ResolveInfo resolveActivity (Intent intent, int flags );

Android-based Handler message transmission mechanism, androidhandlerAndroid only allows the UI thread to modify the UI components in the Activity. When the Android program is started for the first time, Android will start a Main Thread at the same