view tiff files on android

When downloading files based on Android, update the simple help class of UI and androidui Due to this simple requirement during project development, Google also has many Utils tool classes on the Internet, but they are relatively redundant. I wrote a simple help class. /*** Download the file and update the simple UI help class ** @ author jarlen **/public class DownLoadHelper {private static final int DOW

Update the simple help class of the UI when downloading files based on Android Due to this simple requirement during project development, Google also has many Utils tool classes on the Internet, but they are relatively redundant. I wrote a simple help class. /*** Download the file and update the simple UI help class ** @ author jarlen **/public class DownLoadHelper {private static final int DOWN_BEGIN = 0;

During the development process, you will always need to download files from the network, and sometimes you need to display the download progress in the drop-down menu.Now I've written a demo that encapsulates the code for asynctask download files and progress display, and can be used directly in the future when you're working on a project.：The main interface has only one button, which is relatively simple:/

[Android] does not display the generated image files in the system Gallery.I encountered a problem before, that is, after I generated a new Bitmap in the program, I did not see the new image when I opened the system's Gallery view. However, open the file browser, find the folder where the Bitmap is saved, and you can see the Bitmap file generated by the program.

) {Logutil.writeerror (ex);LOG.E ("Sendbroadcaseremountsdcard", Ex.getmessage ());Toastutil.show (Activity, "re-mount SD card failed, please restart your phone to view pictures");}}This is useless. To reload, you must scan the file, to re-mount the folder, and to recursively scan all folders under the file.The implementation code is as follows: //Scan Files Public Static voidfilescan (Activity activi

threadFinal Handler Handler = new Handler () {@Overridepublic void Handlemessage (Message msg) {TODO auto-generated Method StubSuper.handlemessage (msg);if (msg.what = = 1) {Stopself ();Toast.maketext (Getapplicationcontext (), "File Download Complete", 1). Show ();}}};Thread thread = new Thread (new Runnable () {@Overridepublic void Run () {TODO auto-generated Method StubHttpClient HttpClient = new Defaulthttpclient ();HttpPost HttpPost = new HttpPost (Downpath);HttpResponse HttpResponse = nul

savedinstancestate) {//TODO auto-generated Method Stub Super. OnCreate (savedinstancestate); Setcontentview (R.layout.activity_main); Et_username= (EditText) This. Findviewbyid (R.id.et_username); Et_pwd= (EditText) This. Findviewbyid (R.ID.ET_PWD); Cb_checked= (CheckBox) This. Findviewbyid (r.id.cb_checked); Bt_login= (Button) This. Findviewbyid (R.id.bt_login); Bt_login.setonclicklistener ( This); Map This); if(Map! =NULL) {Et_username.settext (Map.get ("Username")); Et_pwd.sett

#1. Download the Utils ProjectHttps://github.com/wyouflf/xUtils#2布局文件里实现UI#3. Implementing code functionality in MainactivityPackage Com.wzw.downloaddemo;import Java.io.file;import Com.lidroid.xutils.httputils;import Com.lidroid.xutils.exception.httpexception;import Com.lidroid.xutils.http.httphandler;import Com.lidroid.xutils.http.responseinfo;import Com.lidroid.xutils.http.callback.requestcallback;import Android.os.bundle;import Android.app.activity;import Android.view.menu;import Android.view

"); Intent.addcategory ("Android.intent.category.DEFAULT"); Intent.addflags (Intent.flag_activity_new_task); Uri uri = uri.fromfile (param); Intent.setdataandtype (URI, "application/vnd.ms-excel"); return intent; }/** * Determine if intent exists to prevent crashes * @param context * @param intent * @return */public static Boolean I SintentavaIlable (context context, Intent Intent) {final Packagemanager Packagemanager = Context.getpackagemanager (); listTo bind an