Progress bar Simple Demo

The layout is very simple.

<linearlayout xmlns: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"    tools:context= "com.example.loadprogressbardemo.MainActivity" >    <progressbar         android:id= "@+id/bar"        android:layout_width= "match_parent"        android:layout_height= " Wrap_content "         style="? android:attr/progressbarstylehorizontal "        />        <button        android:id= "@+id/btn"        android:layout_width= "wrap_content"        android:layout_height= "Wrap_content"        android: text= "Loading"/></linearlayout>

Logic code

Package Com.example.loadprogressbardemo;import Android.app.activity;import Android.os.bundle;import Android.view.menu;import Android.view.menuitem;import Android.view.view;import Android.view.View.OnClickListener; Import Android.widget.button;import Android.widget.progressbar;import Android.widget.toast;public class Mainactivity extends Activity {private Button btn;private ProgressBar bar; @Overrideprotected void OnCreate (Bundle Savedinstancestate) {super.oncreate (savedinstancestate); Setcontentview (r.layout.activity_main); bar = (ProgressBar ) Findviewbyid (r.id.bar); btn = (Button) Findviewbyid (R.ID.BTN); Btn.setonclicklistener (new Buttonlistener ());} Class Buttonlistener implements onclicklistener{@Overridepublic void OnClick (View v) {//TODO auto-generated method Stubi F (v.getid () = = r.id.btn) {Thread t = new Loadthread (); T.start ();}}} Class Loadthread extends Thread{public void Run () {for (int i=0;i<100;i++) {try {Thread.Sleep]} catch ( Interruptedexception e) {//TODO auto-generated catchBlocke.printstacktrace ();} Bar.setprogress (Bar.getprogress () +1);}}}

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Progress bar Simple Demo