Android automatically exits the FM Radio application when the flight mode is enabled and the headset is pulled out.
The FM radio needs to be inserted into the headset as an antenna, and automatically exits when the headset is pulled out.
1. First add the prompt string
Media
Recently in the study of the FM module, FM is a learning module that can be seen from the upper layer.The upper layer is the FM's push-button operation and the interface display, which calls to the FM low-level driver to achieve the function of radio listening.FM Start-up process: such as:First enter the Fmradio.java c
Recently in the study of the FM module, FM is a learning module that can be seen from the upper layer. The upper layer is the FM's push-button operation and the interface display, which calls to the FM low-level driver to achieve the function of radio listening.Look at the FM
the SRCH_ABORTED state and a new search starts.* * @ Return no*/
static void setSearchState(int state)
/**
* Start basic search and scan operations.
*
* * Use this command to call a basic seek/FM radio frequency scan.
* * * This API is used:
Call Basic Search operations ({@ link # FM_RX_SRCH_MODE_SEEK })
Call basic scan operations ({@ link # FM
Iantenna = 0; int re = fmreceiverjni.setcontrolnative (SFd, V4l2_cid_private_tavarua_antenna, Iantenna); if (re = = 0) return true; return false; }/*** Set FM Power status** *The method sets the FM power state. * */static void setfmpowerstate (int state) { fmstate = state; }/*** Returns:** Fmoff-if The FM
Android FM module learning-4 source code analysis (5)
In the previous chapters, we analyzed several main class files of the FM module. What we want to analyze today is: FMTransceiver. java
Public class FmTransceiver {/* Primary FM States: * FM will be in one of the 4 state
() { @Override publicvoid OnClick (View v) { new Intent (" Com.example.broadcastTest.MY_BROADCAST "); Sendorderedbroadcast (Intent,null); }});are annotations to Sendbroadcast () and Sendorderedbroadcast () in the Android API.3. Receiving broadcastsOf course, there is no receiver after sending the broadcast.3.1 Creating a ReceiverCreating a broadcast receiver is simple,
Below, we introduce the radio in SMS by SMS blocker.Layout file
You can set the number that you want to intercept in the layout fileXML version= "1.0" encoding= "Utf-8"?>LinearLayoutxmlns:android= "Http://schemas.android.com/apk/res/android"android:orientation= "vertical"Android:layout_width= "Match_parent"Android:layout_height= "Match_parent"> TextViewAndroid:layout_width= "Wrap_content"Android:la
Preface
This chapter is about android. widget. RadioGroup. The translation comes from "bear the brunt". Thanks again "bear the brunt "! Welcome to join in Android API Chinese translation, contact me over140@gmail.com.
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You are welcome to repost, but please keep the original source of the article :)
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This demo demonstrates the use of class loader. About the use of class loader we have already introduced in the previous demo in this again small review.Steps for using the class loader:* 1. Get the class loader manager Loadermanager manager = Tent.getloadermanager ();* 2. Initialize LoaderMainactivity Public class mainactivity extends Activity { @Override protected void onCreate(Bundle savedinstancestate) {Super. OnCreate (Savedinstancestate); Fragmentmanager
Preface
This chapter translates Android. widget. radiobutton into a single-choice button, which is usually used with radiogroup. For example, see here. More friends are welcome to join the Chinese translation operation of Android Api! My mailbox over140@gmail.com.
Statement
You are welcome to repost, but please keep the original source of the article :)
Blog: ht
About the API changes of Android L
Every time the new Android version is released, Google will release an API change report, which summarizes information such as the added, changed, and removed APIs of the previous version.
In any case, the Android L Developer Preview repor
(), and then add (), or directly use replace (), the same effect.(3) Remove destroys the entire fragment instance, and detach simply destroys its view structure, and the instance is not destroyed.(4) The current activity persists, so you can use detach when you do not want to retain user action. Reference address: Android Fragment Real full resolution (on) Android Fragment Real full parse (bottom)For some
API changes for Android L Developer Preview
In any case, the Android L Developer Preview report has been released along with javaDoc, which can be seen in a poorly-structured ZIP archive. I often review this document to see how different it is from Google I/O. Android L actually has a lot of meaningful changes.
Note:T
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