Android Learning notes-common controls

radio Button Radio

650) this.width=650; "src=" Http://s3.51cto.com/wyfs02/M02/53/8F/wKioL1RrArjibAQOAAAeUve5e_A037.jpg "title=" Qq20141118162354.png "alt=" Wkiol1rrarjibaqoaaaeuve5e_a037.jpg "/>

        <RadioGroup              android:id= "@+id/gendergroup"              android:layout_width= "Wrap_content"              android:layout_height= "Wrap_content"              android:orientation= "Vertical" >             <RadioButton                  android:id= "@+id/femalebutton"                  android:layout_width= "Wrap_content"                  android:layout_height= "Wrap_ Content "                android:text= "@string/female"/>                          <RadioButton                  android:id= "@+id/malebutton"                  android:layout_width= "Wrap_content"                  android:layout_height= " Wrap_content "                 android:text= "@string/male"/>        </radiogroup>

Gendergroup = (radiogroup) Findviewbyid (r.id.gendergroup); Malebutton = (RadioButton) Findviewbyid (R.id.malebutton); Femalebutton = (RadioButton) Findviewbyid (R.id.femalebutton);//...gendergroup.setoncheckedchangelistener (new Radiogroup.oncheckedchangelistener () {@Overridepublic void oncheckedchanged (radiogroup group, int checkedid) {//TODO Auto-generated Method Stubif (femalebutton.getid () = = Checkedid) {System.out.println ("female"); Toast.maketext (Mainactivity.this, "female", Toast.length_short). Show (); else if (malebutton.getid () = = Checkedid) {System.out.println ("female"); Toast.maketext (Mainactivity.this, "male", Toast.length_short). Show ();}});

Multi-Select CheckBox

650 "this.width=650;" src= "http://s3.51cto.com/wyfs02/ M02/53/8f/wkiol1rraynyhoifaaau_yuhos4262.jpg "title=" Qq20141118162405.png "alt=" wkiol1rraynyhoifaaau_ Yuhos4262.jpg "/>

        <CheckBox              android:id= "@+id/swim"              android:layout_width= "Wrap_content"              android:layout_height= "Wrap_content"              android:layout_below= "@id/gendergroup"              android:text= "@string/swim"/>                 <CheckBox              android:id= "@+id/read"              android:layout_width= "Wrap_content"              android:layout_height= "WRap_content "            android:layout_below=" @id/ Swim "            android:text=" @string/read "/>                 <checkbox              android:id= "@+id/run"              android:layout_width= "Wrap_content"              android:layout_height= "Wrap_content"              android:layout_below= "@id/read"              android:text= "@string/run"/>

swimbox =  (checkbox)  findviewbyid (r.id.swim);runbox =  (checkbox)  findviewbyid ( R.id.run);readbox =  (CheckBox)  findviewbyid (r.id.read);//...swimbox.setoncheckedchangelistener ( New oncheckedchangelistener ()  {@Overridepublic  void oncheckedchanged (compoundbutton  buttonview,boolean ischecked)  {// TODO Auto-generated method stubif  ( isChecked)  {system.out.println ("swim is checked");}  else {system.out.println ("swim is unchecked");}}); Readbox.setoncheckedchangelistener (New oncheckedchangelistener ()  {@Overridepublic  void  OnCheckedChanged (compoundbutton buttonview,boolean ischecked)  {// todo auto-generated  method stubif  (isChecked)  {system.out.println ("read is checked");}  else {system.out.println ("read is unchecked");}}); Runbox.setoncheckedchangelistener (New onCheckedchangelistener ()  {@Overridepublic  void oncheckedchanged (Compoundbutton buttonview, boolean ischecked)  {// TODO Auto-generated method stubif  (isChecked)  { System.out.println ("run is checked");}  else {system.out.println ("run is unchecked");}});}

Progress bar ProgressBar

650) this.width=650; "src=" Http://s3.51cto.com/wyfs02/M01/53/92/wKiom1RrC3CA0KiSAABOqEquBjw597.jpg "title=" Qq20141118170243.png "alt=" Wkiom1rrc3ca0kisaaboqequbjw597.jpg "/>

<progressbar     android:id= "@+id/firstBar"     style= "? Android:attr/progressbarstylehorizontal"     android:layout _width= "200DP"     android:layout_height= "Wrap_content"     android: Visibility= "Gone"/><progressbar     android:id= "@+id/secondbar"      style= "Android:attr/progressbarstyle"     android:layout_width= "200DP"      android:layout_height= "Wrap_content"     android:layout_below= "@id/ Firstbar "    android:visibility=" Gone "/><button android:id=" @+id/myButton "     android:layout_width= "wrap_content"     android:layout_height= "wrap _content "    android:layout_below=" @id/secondbar "    android:text=" start /> 

public class mainactivity extends actionbaractivity {private progressbar  firstbar = null;private progressbar secondbar = null;private button  mybuton = null;private int i = 0; @Overrideprotected  void oncreate ( bundle savedinstancestate)  {super.oncreate (savedinstancestate); Setcontentview (R.layout.activity_main );firstbar =  (ProgressBar)  findviewbyid (R.id.firstbar);secondbar =  (ProgressBar)  findviewbyid (R.id.secondbar);mybuton =  (Button)  findviewbyid (R.id.mybutton); Mybuton.setonclicklistener (New buttonlistener ());} class buttonlistener implements onclicklistener{@Overridepublic  void onclick (View &NBSP;V)  {if  (i == 0)  {firstbar.setvisibility (view.visible); Secondbar.setvisibility ( view.visible);} else if  (I < firstbar.getmax ())  {//set the value of the Zhu progress bar FIRSTBAR.SEtprogress (i);//Set the value of the second progress bar secondbar.setsecondaryprogress (I&NBSP;+&NBSP;10);//The default progress bar does not show the status of// Secondbar.setprogress (i);} Else {firstbar.setvisibility (View.gone); secondbar.setvisibility (View.gone);} i = i + 10;}}}

List ListView

650) this.width=650; "src=" Http://s3.51cto.com/wyfs02/M01/53/93/wKiom1RrKF_C8RvOAACtnsa1S0g551.jpg "title=" Qq20141118190642.png "alt=" Wkiom1rrkf_c8rvoaactnsa1s0g551.jpg "/>

Main.xml

<?xml version= "1.0"  encoding= "Utf-8"? ><linearlayout xmlns:android= "http// Schemas.android.com/apk/res/android "    android:layout_width=" Match_parent "     android:layout_height= "match_parent"     android:orientation= "vertical"   >        <LinearLayout          android:id= "@+id/listlinearlayout"         android:layout_ Width= "Fill_parent"         android:layout_height= "Wrap_content"          android:orientation= "Vertical" >                 <listview android:id= "@+id/android: List "            android:layout_width=" Fill_parent "            android:layout_height= "Wrap_content"              android:drawselectorontop= "false"              android:scrollbars= "Vertical"/>    </ Linearlayout></linearlayout>

user.xml

<?xml version= "1.0"  encoding= "Utf-8"? ><linearlayout xmlns:android= "http// Schemas.android.com/apk/res/android "    android:layout_width=" Match_parent "     android:layout_height= "match_parent"     android:orientation= "Horizontal"   >    <textview         android:id= "@+id /user_name "        android:layout_width=" 180dip "         android:layout_height= "30dip"          Android:textsize= "10pt"         android:singleline= "true"/>    <textview         android:id= "@+id/user_ip"          android:layout_width= "Fill_parent"          android:layout_height="Fill_parent"         android:textsize= "10pt"          android:gravity= "Right"/> </linearlayout>

maina Ctivity.java

public class mainactivity extends listactivity{@Overrideprotected  void oncreate ( bundle savedinstancestate)  {super.oncreate (savedinstancestate); Setcontentview (R.layout.main); arraylist

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Android Learning notes-common controls