Csdn Simple Android Client implementation

has been on the computer to see CSDN blog, information, today made a small software on the phone to view information and blog.

Directly on the code:

First, the Welcome interface--Loadingactivity.java

Package Com.example.webviewtest;import Android.app.activity;import Android.content.intent;import android.os.Bundle ; Import Android.os.handler;import Android.view.window;public class Loadingactivity extends activity{@ overrideprotected void OnCreate (Bundle savedinstancestate) {//TODO auto-generated method Stubsuper.oncreate ( Savedinstancestate); requestwindowfeature (Window.feature_no_title); Setcontentview (R.layout.loading); new Handler ( ). postdelayed (New Runnable () {@Overridepublic void run () {Intent mainintent = new Intent (Loadingactivity.this, Showactivity.class); startactivity (mainintent); Finish ();}}, 2000);}}

its layout file is very easy--loading.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:o rientation= "vertical" >    <imageview        android:id= "@+id/imageview" android:layout_width= "Wrap_        Content "        android:layout_height=" fill_parent "        android:src=" @drawable/splash "/></linearlayout>

second, the main page surface--showactivity.java

Package Com.example.webviewtest;import Java.util.timer;import Java.util.timertask;import Android.annotation.suppresslint;import Android.app.activity;import Android.app.alertdialog;import Android.content.dialoginterface;import Android.content.intent;import Android.os.bundle;import Android.view.keyevent;import Android.view.menu;import Android.view.menuitem;import Android.view.Window;import Android.webkit.websettings.renderpriority;import Android.webkit.webview;import android.webkit.WebViewClient; Import Android.widget.toast;public class Showactivity extends Activity {private WebView webview;private static Boolean is Exit = false; Timer texit = new timer ();//Timer timertask task; @SuppressLint ("setjavascriptenabled") @Overrideprotected void OnCreate ( Bundle savedinstancestate) {super.oncreate (savedinstancestate); Requestwindowfeature (Window.feature_no_title); Setcontentview (r.layout.activity_main); WebView = (WebView) Findviewbyid (R.id.web_view); Webview.getsettings (). Setbuiltinzoomcontrols (true); webView.getsettings (). Setjavascriptenabled (True); Webview.getsettings (). setrenderpriority (Renderpriority.high);// Webview.getsettings (). Setblocknetworkimage (True); Webview.setwebviewclient (new Webviewclient () {@Overridepublic Boolean shouldoverrideurlloading (WebView view, String URL) {//To load new page view.loadurl (URL) According to the passed-in argument;// Indicates that the current webview can handle a request to open a new webpage without using the System browser to return true; @Overridepublic void Onreceivederror (WebView view, int errorcode,string description, String failingurl) { Super.onreceivederror (view, ErrorCode, description, Failingurl); Toast.maketext (Showactivity.this, "Uh! Failed to load, maybe off the net. Or not! ", Toast.length_long). Show ();}}); Webview.loadurl ("http://www.csdn.net/");} @Overridepublic boolean onKeyDown (int keycode, keyevent event) {if (keycode = = Keyevent.keycode_back && webview.c Angoback ()) {webview.goback ();//Return to the previous page return true;} Return Super.onkeydown (KeyCode, event);} @Overridepublic void onbackpressed () {if (Isexit = = False) {Isexit = true; Toast.maketext (This, "press the Back button again to return to the desktop", Toast.length_Short). Show (); task = new TimerTask () {@Overridepublic void run () {isexit = false;}}; Texit.schedule (Task, 2000);} else {finish (); System.exit (0);}} @Overridepublic boolean Oncreateoptionsmenu (Menu menu) {//TODO auto-generated method Stubsuper.oncreateoptionsmenu ( menu);//Add four menu items menu.add (menu.none, Menu.first + 1, 1, "help"). SetIcon (R.drawable.menu_help); Menu.add (Menu.none, Menu.first + 2, 2, "exit"). SetIcon (R.drawable.menu_quit); return true;} @Overridepublic boolean onoptionsitemselected (MenuItem Item) {//TODO auto-generated method Stubswitch (Item.getitemid ( ) {case Menu.first + 1:intent Intent = new Intent (showactivity.this, Helpactivity.class); startactivity (Intent); return True;case Menu.first + 2:new Alertdialog.builder (this). Settitle ("Exit"). Setmessage ("Are you sure you want to exit Csdn?"). "). SetIcon (Android. R.drawable.ic_dialog_info). Setpositivebutton (R.string.ok,new Dialoginterface.onclicklistener () {public void OnClick (dialoginterface dialog,int whichbutton) {finish ();//Exit Program}}). Setnegativebutton (r.string.canceL, NULL). Show (); return true;} return false;}}

Layout file--activity_main.xml

<linearlayout xmlns:android= "http://schemas.android.com/apk/res/android"    android:layout_width= "Match_ Parent "    android:layout_height=" match_parent ">    <webview        android:id=" @+id/web_view "        Android:layout_width= "Match_parent"        android:layout_height= "Match_parent"/></linearlayout>

third, help page--helpactivity.java

Package Com.example.webviewtest;import Android.app.activity;import Android.os.bundle;import Android.view.Window; public class Helpactivity extends activity{@Overrideprotected void OnCreate (Bundle savedinstancestate) {//TODO Auto-generated method Stubsuper.oncreate (savedinstancestate); Requestwindowfeature (Window.feature_no_title); Setcontentview (R.LAYOUT.HELP);}}

Layout file--help.xml

<?xml version= "1.0" encoding= "Utf-8"?
><tablelayout xmlns:android= "Http://schemas.android.com/apk/res/android"     android:layout_ Width= "Fill_parent"     android:layout_height= "Wrap_content"     android: stretchcolumns= "0,1,2" >    <TableRow>        < textview            android:layout_width= "100DP"              android:layout_height= "Match_parent"              android:layout_marginright= "10DP"              android:text= "First step:"              android:textsize= "23SP"/>        <textview             android:layout_width= "100DP"              android:layout_height= "Match_parent"              android:layout_marginright= "5DP"              android:layout_marginleft= "5DP"             Android : text= "Second step:"             android:textsize= "23sp"/>         <TextView             android:layout_width= "100DP"             android:layout_height= "Match_parent"             android: layout_marginright= "10DP"             android:text= "step Three:"             android:textsize= "23SP"/>     </tablerow>    <TableRow        android:layout_margintop= "20DP" >       <TextView             android:layout_width= "100DP"              android:layout_height= "Match_parent"             android:layout_marginright= "10DP"             android: text= "upper right corner icon"             android:textsize= "15sp"/>         <TextView             android:layout_width= "100DP"             android:layout_height= "Match_parent"             android: Layout_marginright= "5DP "            android:layout_marginleft=" 5DP "             android:text= "click blog"              android:textsize= "15SP"/>        < textview            android:layout_width= "100DP"              android:layout_height= "Match_parent"              android:layout_marginright= "10DP"              android:text= "Click to sign In"              android:textsize= "15SP"/>    </TableRow>    < tablerow>        <ImageView             android:layout_width= "100DP"             android:layout_height= "Match_parent"             android: layout_marginright= "10DP"             android:src= "@ Drawable/first "/>        <ImageView             android:layout_width= "100DP"              android:layout_height= "Match_parent"              android:layout_marginleft= "5DP"              android:layout_marginright= "5DP"             android:src= "@drawable/second"/>        <ImageView             android:layout_width= "100DP"              android:layout_height= "Match_parent"             android:layout_marginleft= "10DP"             android:src= "@drawable/third"/>    </TableRow></TableLayout>

Iv. Finally, don't forget to add access to the network in the Androidmanifest.xml file .

<uses-permission android:name= "Android.permission.INTERNET"/>

Wu, apk:http://download.csdn.net/detail/xdwyyan/8121301

Csdn Simple Android Client implementation