Android Web HTML Viewer

This article implements an Android-based Web HTML Viewer

New project, project layout file is as follows:

<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"Tools:context=". Mainactivity " >    <EditTextAndroid:id= "@+id/et_path"Android:layout_width= "Fill_parent"Android:layout_height= "Wrap_content"Android:hint= "Please enter HTML path" />    <ButtonAndroid:layout_width= "Fill_parent"Android:layout_height= "Wrap_content"Android:onclick= "click"Android:text= "View" />    <ScrollViewAndroid:layout_width= "Fill_parent"Android:layout_height= "Fill_parent" >        <TextViewAndroid:id= "@+id/tv_content"Android:layout_width= "Fill_parent"Android:layout_height= "Fill_parent" >        </TextView>    </ScrollView></LinearLayout>

The complete code is as follows:

 PackageCom.wuyudong.htmlviewer;ImportJava.io.InputStream;Importjava.io.StreamCorruptedException;Importjava.net.HttpURLConnection;ImportJava.net.URL;ImportCom.wuyudong.htmlviewer.utils.StreamTools;ImportAndroid.os.Bundle;ImportAndroid.os.Handler;ImportAndroid.os.Message;Importandroid.app.Activity;Importandroid.text.TextUtils;ImportAndroid.view.Menu;ImportAndroid.view.View;ImportAndroid.widget.EditText;ImportAndroid.widget.TextView;ImportAndroid.widget.Toast; Public classMainactivityextendsActivity {protected Static Final intERROR = 1; protected Static Final intShow_text = 2; PrivateTextView tv_content; PrivateEditText Et_path; //define a message handler    PrivateHandler Handler =NewHandler () { Public voidhandlemessage (android.os.Message msg) {Switch(msg.what) { CaseERROR:Toast.makeText (mainactivity. This, "Failed to get data", 0). Show ();  Break;  Caseshow_text:string TEXT=(String) msg.obj;                Tv_content.settext (text);  Break;    }        };    }; @Overrideprotected voidonCreate (Bundle savedinstancestate) {Super. OnCreate (savedinstancestate);        Setcontentview (R.layout.activity_main); Tv_content=(TextView) Findviewbyid (r.id.tv_content); Et_path=(EditText) Findviewbyid (R.id.et_path); }     Public voidClick (View view) {FinalString Path =Et_path.gettext (). toString (). Trim (); if(Textutils.isempty (path)) {Toast.maketext ( This, "Path cannot be empty", 0). Show (); } Else {            NewThread () { Public voidrun () {Try{URL URL=NewURL (path); HttpURLConnection Conn=(httpurlconnection) URL. OpenConnection (); Conn.setrequestmethod ("GET"); Conn.setconnecttimeout (5000); Conn.setreadtimeout (5000); Conn.setrequestproperty ("User-agent",                                "mozilla/5.0 (Windows NT 6.1; WOW64) applewebkit/537.36 (khtml, like Gecko) chrome/45.0.2454.101 safari/537.36 "); intCode =Conn.getresponsecode (); if(Code = = 200) {InputStream is=Conn.getinputstream (); String result=Streamtools.readinputstream (IS); //Tv_content.settext (result);                 message msg = new  message ();                            Msg.what = show_text; Msg.obj = result;                        Handler.sendmessage (msg); } Else{Message msg=NewMessage (); Msg.what=ERROR;                        Handler.sendmessage (msg); }                    } Catch(Exception e) {e.printstacktrace (); Message msg=NewMessage (); Msg.what=ERROR;                    Handler.sendmessage (msg);            }                };        }.start (); }    }}

Android Web HTML Viewer