small android laptop

In XML, there are 5 predefined entity references: Less than gt; > Greater than amp; and number apos; ‘ Single quotation marks quot; " Quotes Note: In XML, only the characters " . The greater than sign is legal, but it is a good practice to replace it with an entity reference.Info from W3cschoolA small problem wit

Public View GetView (int position, View Convertview, ViewGroup parent) {View Convertview: The value that appears at startup is cached in (View) ConvertviewIf it is currently empty, the layout is loadedView view; if (cenvertview==null) {View = View.inflate (Getapplicationcontext (), r.layout.lv_item,null);} //If not empty, assign the cached value to the viewelse{View=convertview;}TextView tv_name = (TextView) View.findviewbyid (r.id.tv_name);TextView Tv_phone = (TextView) View.findviewbyid (R.id

calling the canvasDraw ();}@Overridepublic void surfacecreated (Surfaceholder holder) {TODO auto-generated Method Stub}@Overridepublic void surfacedestroyed (Surfaceholder holder) {TODO auto-generated Method Stub}Move Event@Overridepublic boolean OnTouch (View V, motionevent event) {TODO auto-generated Method StubSwitch (event.getaction ()) {Case motionevent.action_down://Pressing EventPath.moveto (Event.getx (), event.gety ());Draw ();BreakCase motionevent.action_move://Move EventPath.lineto (

*/Private Sensoreventlistener Msensoreventlistener = new Sensoreventlistener () {@Overridepublic void Onsensorchanged (Sensorevent event) {/** sensor Data Changes *//** get the sensing coordinates on the phone in three directions */Float[] values = event.values;float x = values[0];Float y = values[1];float z = values[2];int sensorvalue = 20;if (Math.Abs (x) > Sensorvalue | | Math.Abs (y) > Sensorvalue | | Math.Abs (z) > Sensorvalue) {/** Vibration, Time 200 milliseconds */Mvibrator.vibrate (200

OneNeed to use a theme.appcompat Theme (or descendant) and this activity workaroundThe error is as follows:Java.lang.RuntimeException:Unable to start activitycomponentinfo{com.example.test2/com.example.test2.mainactivity }:java.lang.illegalstateexception:you need to use a theme.appcompat Theme (ordescendant) and this activity.Workaround:The activity created is Mainactivityextends actionbaractivity. Change the back of the actionbaractivity to activity, and then guide the package, the following er

Create a new Android project.A layoutOpen the Main.xml to modify the contents as follows:Two definition stringsOpen Strings.xml Add content as follows:Three Response click eventsOpen Mainactivity.java and add the following code:Public EditText numbertext;public EditText contenttext;public void OnCreate (Bundle savedinstancestate) {super.oncreate (savedinstancestate); Setcontentview (r.layout.main); numbertext = (EditText) This.findviewbyid (R.id.numbe

versioncode a bit small, should be changed a little bit on the line. The default is the following:package="Com.test.apppage"android:versioncode="1"Android:versionname="1.0"The issue occurs when the low version cannot be released with a high version of replace installation. It's possible that your last beta version was a high version, and the next test you tuned to a lower version. Therefore, the lower version cannot be replaced by the installation hi

1, Sharedpreferences Prefs.edit (). putstring ("SHAKE", Object.getstring ("SHAKE")).commit ();Sharedpreferences When the value is stored, put in, must commit, otherwise it will not take effect. 2. Thread new Thread () {public voidRun (){ 。。。。。 }; }.start ();thread, a long time ago I new a thread, the result forget start, I tangled for a long time ... Only to find that there was no start. Later, I remember the thread to start, the result forgot to run, in-line write what code all error, finally f

The Android algorithm is a small algorithm about recursion and dichotomy.// 1. Implement a function. Search for the specified value in two parts of an ordered integer array. If it is found, the position of the value is returned. If it is not found,-1 is returned. Package demo; public class Mytest {public static void main (String [] args) {int [] arr = {1, 2, 5, 9, 11, 45}; int index = findIndext (arr, 0, ar

);Setcontentview (R.layout.activity_main);Surface= (Surfaceview) This.findviewbyid (r.id.surface);pausebt= (Button) This.findviewbyid (r.id.pause);}public void player (view view) {Player=new MediaPlayer ();try {Player.setdatasource ("Http://192.168.0.129:8080/fuwuqi/123.mp4");} catch (Exception e){E.printstacktrace ();}Sh=surface.getholder ();Sh.addcallback (New Callback () {@Overridepublic void surfacechanged (surfaceholder holder, int format,int width, int height) {TODO auto-generated Method S

1, layout settings, liearlayout the next three parts, including the novel theme content is a custom view, the proportion is 1:8:12, CREATE database table two tables TXT table and page table, two tables for primary foreign key AssociationPublic class DBHelper extends Sqliteopenhelper {public DBHelper (context context) {Super (context, "read.db" , NULL, 1); } public DBHelper (context context, String name, Sqlitedatabase.cursorfactory factory, int version) {Super (conte XT, name, Factory, ver

Android inside the radio box and HTML is actually the same effect. Here are two controls: CheckBox and Radiogroup. Directly on the code:Radio.xml Layout file:String.xml Code:radiotest:Package Mars.activity07;import Android.app.activity;import Android.os.bundle;import android.widget.checkbox;import Android.widget.compoundbutton;import Android.widget.radiobutton;import Android.widget.radiogroup;import Android.widget.toast;public class Radiotest extends

) {}else{//This cache is no longer present, update interfaceString Text = "Freed" +formatter.formatfilesize (Getapplicationcontext (), Tempcache) + "Memory space";Showtoast (text);Ll_container.removeview (Romoveview);}Super.onactivityresult (Requestcode, ResultCode, data);}Please note that. The method of this parent class is run in a child thread, so to update the UI interface, the main threadPrivate class Mypackdataobserver extends ipackagedataobserver.stub{@Overridepublic void onremovecomplete

() {uploaddd (); } }); Thread.Start ();2--Private voiduploaddd () {//final Handler handler=new Handler ()// {//Public void Handlemessage (Message msg)// {//if (msg.what==1)// {//log.d ("Dfdfdfdf", ii+ "__" + "Haode");////if (Androidclient._error_uploadscrapimgfile.intern ()! = "")//// {////Toast.maketext (Activityscrap.this,androidclient._error_uploadscrapimgfile,toast.length_short). Show ();//// }//

; } img.setimageresource (Imgs[currentimgindex]);//Show Pictures } } }　　XML code (ACTIVITY_MAIN.XML):LinearLayoutxmlns:android= "Http://schemas.android.com/apk/res/android"Xmlns:tools= "Http://schemas.android.com/tools"Android:layout_width= "Match_parent"Android:layout_height= "Match_parent"android:orientation= "vertical"Android:paddingbottom= "@dimen/activity_vertical_margin"Android:paddingleft= "@dimen/activity_horizontal_margin