android fileprovider external storage

Original address: http://yifeng.studio/2017/05/03/android-7-0-compat-fileprovider/Because Android 7.0 or later systems in the domestic mobile phone market is not very high, many Android developers do not do 7.0 adaptation work, and testers can easily ignore this aspect of compatibility issues. This results in the app c

This article tags: Android7.0 FileproviderBecause Android 7.0 or later systems in the domestic mobile phone market is not very high, many Android developers do not do 7.0 adaptation work, and testers can easily ignore this aspect of compatibility issues. This results in the app crash flashback for mobile phone users 7.0 and older when they use the App section feature. Most of these are caused by a URI that

", Toast.length_short). Show (); } } Public voidonclick10 (view view) {if(Environment.getexternalstoragestate (). Equals (environment.media_mounted)) {//1. Get the content you want to store//String content = Et_5.gettext (). toString (); //2. Get the external storage directory with package name--only to the root directoryString Sdpath =environment.getexternalstoragedirectory (). GetAbsolutePath (); /

current capacity long free = sfs.getfreebytes ( ); TextView TV_SD = (TextView) Findviewbyid (r.id.tv_sd_storage); Tv_sd.settext ("SD also remaining:" +free/1024/1024+ "MB/" +total/ 1024/1024+ "MB"); ProgressBar progress = (ProgressBar) Findviewbyid (r.id.progress); float num = ((float) (free/1024/1024)/(float) (total/ 1024/1024)) *100;int progress1 = (int) num;progress.setprogress (PROGRESS1); Copyright NOTICE: This article for Bo Master original article, without Bo Master permission not reprod

Android stores and loads local files (external storage devices) and android storage devices Sometimes the application needs to write data to the external storage of the device. If you w

abstract In fact, the operation of the Android file and Java in the PC environment is not two, the reason why need to be explained separately is because the Android system provides different from the PC to access the file system root path of the API, while the application of a private file to do a unified management. In my experience, beginners in this section feel it is easy to confuse both internal

Original link: http://m.blog.csdn.net/article/details?id=17725989abstract In fact, the operation of the Android file and Java in the PC environment is not two, the reason why need to be explained separately is because the Android system provides different from the PC to access the file system root path of the API, while the application of a private file to do a unified management. In my experience, beginner

When you are doing your project recently, you need to use Fileprovider. Therefore, the following studies are summarized as follows:Official path: http://developer.android.com/intl/zh-cn/training/secure-file-sharing/setup-sharing.html such as SMS to share a picture to Bluetooth, need to do is set in the text message is as follows: First, you need to add a provider tag to the Menifest:1 define the shared information here - 2 provi

Android External Storage stores store data files on the SD card. 1. When saving data, you must first judge the SD card status. Environment. getExternalStorageState () can be used to display the running status of the SD card. There are two statuses: MEDIA_UNKNOWN,MEDIA_REMOVED,MEDIA_UNMOUNTED,MEDIA_CHECKING,MEDIA_NOFS,MEDIA_MOUNTED,MEDIA_MOUNTED_READ_ONLY,MEDIA_S

(Environment.getexternalstoragestate (). Equals (environment.media_mounted)) {String filename= "Cheriong. txt";String sdpath=environment.getexternalstoragedirectory (). GetAbsolutePath ();String filepath=sdpath+ "/atguigu/" +filename;FileInputStream fis=new FileInputStream (FilePath);Bytearrayoutputstream baos=new Bytearrayoutputstream ();Byte[] Buffer=new byte[1024];int len=-1;while ((Len=fis.read (buffer))!=-1) {Baos.write (buffer, 0, Len);}String content=baos.tostring ();Fis.close ();Toast.m

The previous section learned how to read and write files in the phone's internal storage, and this section learns how to read and write files in the phone's external storage. That's how to read and write files in SDcard.We also use the previous login interface example to illustrate, (login interface please see the android