Android uses webview to customize browsers with history and download Functions

Package com. mysession;

Import java. util. arraylist;
Import java. util. List;

Import Android. App. activity;
Import Android. content. intent;
Import Android. Graphics. Bitmap;
Import Android. Graphics. Canvas;
Import Android. Graphics. matrix;
Import Android. Graphics. picture;
Import android.net. Uri;
Import Android. OS. Bundle;
Import Android. util. log;
Import Android. View. view;
Import Android. View. View. onclicklistener;
Import Android. WebKit. cookiemanager;
Import Android. WebKit. cookiesyncmanager;
Import Android. WebKit. downloadlistener;
Import Android. WebKit. valuecallback;
Import Android. WebKit. webchromeclient;
Import Android. WebKit. webhistoryitem;
Import Android. WebKit. websettings;
Import Android. WebKit. webview;
Import Android. WebKit. webviewclient;
Import Android. widget. Button;
Import Android. widget. edittext;
Import Android. widget. gridview;
Import Android. widget. progressbar;

Import com. mysession. model. historymodel;

Public class d_sessionactivity extends activity implements onclicklistener,
Downloadlistener {

Private Static final string tag = "tag ";
// Private string detailurl =
// "Http://www.google.com ";
// Private string detailurl =
// "Http: // 172.20.230.67: 8900/iportal/servlet/getmobilecontent? & User = administrator & Vol = allen_iserver & profile = myserver & Password = uaabd7az0thxe6wfm2fdqa % 3d % 3d & respformat = HTML & subid = login & ENC = 1 ";

// Private string detailurl = "http://music.sogou.com /";
Private webview;
Private button btnload, btnreset, btnhistory, btnback, btnforward;
Private edittext eturl;
Private progressbar mprogressbar;
Private gridview mgridview;
Private cookiemanager;
Private browserhistoryadapter;
Private list

/** Called when the activity is first created .*/
@ Override
Public void oncreate (bundle savedinstancestate ){
Super. oncreate (savedinstancestate );
Setcontentview (R. layout. Main );

Cookiesyncmanager. createinstance (this );
Cookiemanager = cookiemanager. getinstance ();

Webview = (webview) findviewbyid (R. Id. webview1 );
Btnload = (button) findviewbyid (R. Id. btnload );
Btnreset = (button) findviewbyid (R. Id. btnreset );
Btnhistory = (button) findviewbyid (R. Id. btnhistory );
Mprogressbar = (progressbar) findviewbyid (R. Id. progressbar1 );
Eturl = (edittext) findviewbyid (R. Id. eturl );
Btnback = (button) findviewbyid (R. Id. btnback );
Btnforward = (button) findviewbyid (R. Id. btnforward );
Mgridview = (gridview) findviewbyid (R. Id. gridview1 );

Btnload. setonclicklistener (this );
Btnreset. setonclicklistener (this );
Btnhistory. setonclicklistener (this );
Btnback. setonclicklistener (this );
Btnforward. setonclicklistener (this );

Webview. getsettings (). setjavascriptenabled (true );
Webview. setwebviewclient (New birtmobilewebviewclient ());
Webview. setwebchromeclient (New geoclient ());
Webview. setdownloadlistener (this );
Webview. getsettings (). setcachemode (websettings. load_cache_else_network );

// Webbackforwardlist history = webview. copybackforwardlist ();
// If (history! = NULL ){
// Browserhistoryadapter = new browserhistoryadapter (history, this );
// Mgridview. setadapter (browserhistoryadapter );
//}

Webview. setvisibility (view. Visible );
Mgridview. setvisibility (view. Gone );
}

@ Override
Public void onclick (view v ){
If (V = btnload ){
Cookiemanager. setacceptcookie (true );
Webview. setvisibility (view. Visible );
Mgridview. setvisibility (view. Gone );

If (! "". Inclusignorecase (eturl. gettext (). tostring ())){
Webview. loadurl (eturl. gettext (). tostring ());
}

} Else if (V = btnreset ){
Cookiemanager. removeallcookie ();
} Else if (V = btnhistory ){
If (webview. copybackforwardlist () = NULL ){
Return;
} Else {
Webview. setvisibility (view. Gone );
Mgridview. setvisibility (view. Visible );

If (browserhistoryadapter = NULL ){
Browserhistoryadapter = new browserhistoryadapter (
Historymodels, this );
Mgridview. setadapter (browserhistoryadapter );

} Else {
Browserhistoryadapter. sethostory (historymodels );
Browserhistoryadapter. notifydatasetchanged ();
}
}

} Else if (V = btnback ){
Webview. Goback ();
} Else if (V = btnforward ){
Webview. goforward ();
}
}

// Create a webview client that handles mailto links within the webview
Private class birtmobilewebviewclient extends webviewclient {
@ Override
Public Boolean shouldoverrideurlloading (webview view, string URL ){
Log. D ("------ redirect: -----", URL );
Return false;
}

@ Override
Public void onpagestarted (webview view, string URL, bitmap favicon ){
Eturl. settext (URL );
Log. D (TAG + "Start:", URL );
}

@ Override
Public void onpagefinished (webview view, string URL ){

Historymodel = new historymodel ();

// Obtain the history of the browser, including the ID, name, and URL.

Webhistoryitem item = webview. copybackforwardlist ()

. Getcurrentitem ();

// Get a browser page snapshot for browser history

Picture snapshot = view. capturepicture ();

If (snapshot. getwidth ()> 0 & snapshot. getheight ()> 0 ){
Bitmap B = bitmap. createbitmap (snapshot. getwidth (),
Snapshot. getheight (), bitmap. config. argb_8888 );

Canvas c = new canvas (B );

Snapshot. Draw (C );

Bitmap newbitmap = zoombitmap (B, 250,250 );
Historymodel. setsnapshot (newbitmap );
 

// Write the SD card of the mobile phone

// Fileoutputstream Fos = NULL;
// Try {
// Fos = new fileoutputstream ("/sdcard/" + item. gettitle ()
// + ". Jpg ");
// If (FOS! = NULL ){
// B. Compress (bitmap. compressformat. JPEG, 90, FOS );
// FOS. Close ();
//}
//} Catch (exception e ){
//
//}
//
// B = bitmapfactory. decodefile ("/sdcard/" + item. gettitle ()
// + ". Jpg ");
}

Historymodel. setid (item. GETID ());
Historymodel. setname (item. gettitle ());
Historymodel. seturl (item. geturl ());
Historymodels. Add (historymodel );

Log. D (TAG + "finish:", URL );
}
};

/**
* For #43616 from hyron
*
* @ Author allen_fang
*
*/
Private class geoclient extends webchromeclient {

@ Override
Public void ongeolocationpermissionsshowprompt (string origin,
Android. WebKit. geolocationpermissions. Callback callback ){
Super. ongeolocationpermissionsshowprompt (origin, callback );
Callback. Invoke (origin, true, false );
}

@ Override
Public void onprogresschanged (webview view, int newprogress ){
Mprogressbar. setprogress (newprogress );
Super. onprogresschanged (view, newprogress );
}

@ Override
Public void getvisitedhistory (valuecallback <string []> callback ){
Super. getvisitedhistory (callback );
}
}

@ Override
Public void ondownloadstart (string URL, string useragent,
String contentdisposition, string mimetype, long contentlength ){

Log. D ("--------------------------", mimetype );
Log. D ("--------------------------", URL );
Uri uri = URI. parse (URL );
Intent intent = new intent (intent. action_view, Uri );
Startactivity (intent );

}

Public static bitmap zoombitmap (Bitmap bitmap, int width, int height ){
Int W = bitmap. getwidth ();
Int H = bitmap. getheight ();
Matrix matrix = new matrix ();
Float scalewidth = (float) width/W );
Float scaleheight = (float) height/h );
Matrix. postscale (scalewidth, scaleheight );
Bitmap newbmp = bitmap. createbitmap (bitmap, 0, 0, W, H, matrix, true );
Return newbmp;
}
}