best music download app for android 2015

The code for this example is very simple: Intents Public voidongetmusic (view view) {Intent Intent=NewIntent (intent.action_get_content); Intent.settype ("audio/*"); StartActivity (Intent.createchooser (Intent,"Select Music")); } Public voidongetimage (view view) {Intent Intent=NewIntent (intent.action_get_content); Intent.settype ("Image/*"); StartActivity (Intent.createchooser (Intent,"Select Image")); } Public voidongetstream (view view

Recognize audio streams The first step to creating an excellent audio experience is to understand the type of audio stream that your application will use. The Android system maintains independent audio channels for playing music, alarms, notifications, incoming call ringtones, system sounds, and call calls.) volume, and DTMF tone keyboard dialing ). In this way, the user can independently control the volume

to Home screen launches Launchershortcuts Activity, and the ACTION of the requested intent is set to Intent.action_create_ SHORTCUT, so you can use Intent.ACTION_CREATE_SHORTCUT.equals (ACTION) in OnCreate to determine whether the request is from Add to Home screen or user selection app-> Launcher shorts. If it is from add to Home Screen,launcher Shortcuts Create a shortcut setupshortcut for this activity, and then exit.ADD to Home screen emits inten

described in detail later. This example changes the value of haunted preference once every 1 seconds (selected, not selected, not selected).Registeronsharedpreferencechangelistener,unregisteronsharedpreferencechangelistener used for Sharedpreferences Registers a total preference Change event handling code. In this example, the number of times the current button is displayed on the screen when the mypreference changes:"Sail Plan 031" 2015 sail plan

An Android app can contain multiple activity, and an activity can initiate another activity.The activity is managed with a stack structure, and the newly opened activity is stacked on top of the current activity, and the current activity stops running.When an activity stops running, the Android system retains its pre-stop state, and when the user presses the "Bac

(); Firsttime+ = 15*1000; //Schedule the alarm!Alarmmanager am =(Alarmmanager) Getsystemservice (Alarm_service); Am.setrepeating (Alarmmanager.elapsed_realtime_wakeup, Firsttime,15*1000, sender);The above code sends a broadcast event to repeatingalarm every 15 seconds, and a message is displayed on the screen after Repeatingalarm accepts it.For events with schedule, one or more times, you can call Alarmmanager's Cancel method to cancel the schedule alarm event, and the following code cancels mu

: layout_height= "Wrap_content" android:layout_weight= "1" android:background= "@drawable/green" Android:textappearance= "? Android:attr/textappearancemedium" android:text= "@string/initial_te XT " Android:freezestext=" true "> TextView android:layout_width= "Match_parent" android:layout_height= "Wrap_content"Android:layout_weight= "0" android:paddingtop= "8dip" android:paddingbottom= "4dip"android:textappearance= "? Android:attr/textappearancemedium"Android:text= "@string/no_saves_s

The Reorder activities example has four related activitives:reorderonlaunch, Reordertwo,reorderthree, Reorderfour. Where Reorderonlaunch is the main activity,reorderonlaunch start Reordertwo, Reordertwo starts reorderthree,reorderthree. At this time, the "Back stack" of the activity has the following status:Reorderfour want to start reordertwo again, at this time with two implementation methods, one is to start a new reordertwo above the Recordfour, which is the default behavior of StartActivity

The Local service Controller uses LocalService as a "Started" service, which is much simpler than the "Bound" service, Localserviceactivities.controller started the local Service, it basically doesn't matter localservice.StartService (new Intent (Controller. this, LocalService. class));LocalService can choose to stop itself, this example is by calling StopService to stop the service, if you start the service in this example, there is no stopservice, the service will run in the background, Even

default shared preferencesSharedpreferences sharedpref = preferencemanager.getdefaultsharedpreferences ( This); Final intCounter = Sharedpref.getint (advancedpreferences.key_my_preference, 0); Mcountertext.settext (getString (r.string.counter_value_is)+ " " +counter); }You can see that the value of a preference obtained from a shared preferences is defined by its key value and then called GetXXX (key:). To obtain.The value of Mypreference is displayed in Launchingpreferences after returning fro

App->activity->custom Dialog Example using Activity to implement a custom dialog boxThe class customdialogactivity itself is nothing special. The key point is its definition in Androidmanifest.xml: android:label=" @string/activity_custom_dialog " Android:theme = "@style/theme.customdialog"> Customdialogactivity uses a custom Customdialog style (Theme). Android