Я пытаюсь получить последнюю подстроку из String, так как у меня есть имя файла tulips.jpg как я могу получить только .jpg используя метод подстроки?Как получить подстроку в Android?
Я использовал:
String Main_String = dsfdsf.jpg or dfdfgfhfghgh.jpg or dsfsdfgdgsdg.jpg;
(can have any length, not fixed length)
String str_jpg = Main_String.substring(1, Main_String.length());
/////////////////////
for(int i=0; i < folderResponse.getPropertyCount(); i++)
{
SoapObject SingleFolder = (SoapObject)folderResponse.getProperty(i);
ID = Integer.parseInt(SingleFolder.getProperty(0).toString());
KEY_SUBFOLDERNAME = SingleFolder.getProperty(1).toString();
KEY_SUBJECTTYPE = SingleFolder.getProperty(3).toString();
String[] str = KEY_SUBFOLDERNAME.split(".");
for(int j = 0; j < str.length; j++){
System.out.println(""+str[j]);
// you got all name here use what ever you want.
if(str[1] == "jpg"){
FolderList item = new FolderList(JPGimages[0], SingleFolder.getProperty(1).toString();, SingleFolder.getProperty(3).toString();;
Subfolderdata.add(item);
}
Просьба предложить в настоящее время
Спасибо
03-01 16:28:17.115: I/FolderID(3254): 13002
03-01 16:28:17.115: I/User_ID(3254): 1
03-01 16:28:17.175: D/dalvikvm(3254): GC_FOR_ALLOC freed 16K, 5% free 7881K/8263K, paused 52ms
03-01 16:28:17.175: I/dalvikvm-heap(3254): Grow heap (frag case) to 8.042MB for 262160-byte allocation
03-01 16:28:17.255: D/dalvikvm(3254): GC_FOR_ALLOC freed 3K, 6% free 8134K/8583K, paused 70ms
03-01 16:28:17.705: I/AllFolders(3254): anyType{FileFolderDetails=anyType{ID=13003; Name=Doc file; URL=anyType{}; SubjectType=Folder; }; FileFolderDetails=anyType{ID=13004; Name=My Pics; URL=anyType{}; SubjectType=Folder; }; FileFolderDetails=anyType{ID=13005; Name=Testing; URL=anyType{}; SubjectType=Folder; }; FileFolderDetails=anyType{ID=13075; Name=satnam; URL=anyType{}; SubjectType=Folder; }; FileFolderDetails=anyType{ID=13080; Name=Saini; URL=anyType{}; SubjectType=Folder; }; FileFolderDetails=anyType{ID=13084; Name=Jelly; URL=anyType{}; SubjectType=Folder; }; FileFolderDetails=anyType{ID=13092; Name=pushie; URL=anyType{}; SubjectType=Folder; }; FileFolderDetails=anyType{ID=13096; Name=Jarnail_Testing; URL=anyType{}; SubjectType=Folder; }; FileFolderDetails=anyType{ID=13099; Name=amarjeet; URL=anyType{}; SubjectType=Folder; }; FileFolderDetails=anyType{ID=13101; Name=Kuta; URL=anyType{}; SubjectType=Folder; }; FileFolderDetails=anyType{ID=13103; Name=tajmehal; URL=anyType{}; SubjectType=Folder; }; FileFolderDetails=anyType{ID=13105; Name=TextArea; URL=anyType{}; SubjectType=Folder; }; FileFolderDetails=anyType{ID=13107; Name=TextArea1; URL=anyType{}; SubjectType=Folder; }; FileFolderDetails=anyType{ID=13109; Name=TextArea2; URL=anyType{}; SubjectType=Folder; }; FileFolderDetails=anyType{ID=13115; Name=TextArea3; URL=anyType{}; SubjectType=Folder; }; FileFolderDetails=anyType{ID=13121; Name=TextArea5; URL=anyType{}; SubjectType=Folder; }; FileFolderDetails=anyType{ID=13124; Name=Check Char; URL=anyType{}; SubjectType=Folder; }; FileFolderDetails=anyType{ID=13128; Name=amitestinggggg; URL=anyType{}; SubjectType=Folder; }; FileFolderDetails=anyType{ID=13132; Name=kkk; URL=anyType{}; SubjectType=Folder; }; FileFolderDetails=anyType{ID=13136; Name=hhhhhhhhhhhhhhhhhh; URL=anyType{}; SubjectType=Folder; }; FileFolderDetails=anyType{ID=13140; Name=ravitevffvvgfdcvgbgvf; URL=anyType{}; SubjectType=Folder; }; FileFolderDetails=anyType{ID=13002; Name=Capture.PNG; URL=Tulips.jpg; SubjectType=File; }; FileFolderDetails=anyType{ID=13002; Name=Capture1.PNG; URL=Tulips.jpg; SubjectType=File; }; FileFolderDetails=anyType{ID=13002; Name=Chrysanthemum.jpg; URL=Tulips.jpg; SubjectType=File; }; FileFolderDetails=anyType{ID=13002; Name=Content4Work.pdf; URL=Tulips.jpg; SubjectType=File; }; FileFolderDetails=anyType{ID=13002; Name=Desert.jpg; URL=Tulips.jpg; SubjectType=File; }; FileFolderDetails=anyType{ID=13002; Name=DMS_Drag_and_Drop(2).doc; URL=Tulips.jpg; SubjectType=File; }; FileFolderDetails=anyType{ID=13002; Name=groups.jpg; URL=Tulips.jpg; SubjectType=File; }; FileFolderDetails=anyType{ID=13002; Name=Jellyfish.jpg; URL=Tulips.jpg; SubjectType=File; }; FileFolderDetails=anyType{ID=13002; Name=Koala.jpg; URL=Tulips.jpg; SubjectType=File; }; FileFolderDetails=anyType{ID=13002; Name=Lighthouse.jpg; URL=Tulips.jpg; SubjectType=File; }; FileFolderDetails=anyType{ID=13002; Name=office.jpg; URL=Tulips.jpg; SubjectType=File; }; FileFolderDetails=anyType{ID=13002; Name=Penguins.jpg; URL=Tulips.jpg; SubjectType=File; }; FileFolderDetails=anyType{ID=13002; Name=Rohit.docx; URL=Tulips.jpg; SubjectType=File; }; FileFolderDetails=anyType{ID=13002; Name=Tulips.jpg; URL=Tulips.jpg; SubjectType=File; }; }
03-01 16:28:17.725: W/System.err(3254): java.lang.ArrayIndexOutOfBoundsException: length=0; index=1
03-01 16:28:17.725: W/System.err(3254): at com.web.dms.Files_Folders_Activity.subfolderTreedata(Files_Folders_Activity.java:106)
03-01 16:28:17.725: W/System.err(3254): at com.web.dms.Files_Folders_Activity.onCreate(Files_Folders_Activity.java:56)
03-01 16:28:17.735: W/System.err(3254): at android.app.Activity.performCreate(Activity.java:4465)
03-01 16:28:17.735: W/System.err(3254): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1049)
03-01 16:28:17.735: W/System.err(3254): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1919)
03-01 16:28:17.735: W/System.err(3254): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1980)
03-01 16:28:17.735: W/System.err(3254): at android.app.ActivityThread.access$600(ActivityThread.java:122)
03-01 16:28:17.735: W/System.err(3254): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1146)
03-01 16:28:17.735: W/System.err(3254): at android.os.Handler.dispatchMessage(Handler.java:99)
03-01 16:28:17.735: W/System.err(3254): at android.os.Looper.loop(Looper.java:137)
03-01 16:28:17.745: W/System.err(3254): at android.app.ActivityThread.main(ActivityThread.java:4340)
03-01 16:28:17.745: W/System.err(3254): at java.lang.reflect.Method.invokeNative(Native Method)
03-01 16:28:17.745: W/System.err(3254): at java.lang.reflect.Method.invoke(Method.java:511)
03-01 16:28:17.745: W/System.err(3254): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784)
03-01 16:28:17.755: W/System.err(3254): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551)
03-01 16:28:17.779: W/System.err(3254): at dalvik.system.NativeStart.main(Native Method)
03-01 16:30:37.056: D/AndroidRuntime(3283): Shutting down VM
03-01 16:30:37.066: W/dalvikvm(3283): threadid=1: thread exiting with uncaught exception (group=0x409961f8)
03-01 16:30:37.077: E/AndroidRuntime(3283): FATAL EXCEPTION: main
03-01 16:30:37.077: E/AndroidRuntime(3283): java.lang.RuntimeException: Unable to instantiate application android.app.Application: java.lang.NullPointerException
03-01 16:30:37.077: E/AndroidRuntime(3283): at android.app.LoadedApk.makeApplication(LoadedApk.java:482)
03-01 16:30:37.077: E/AndroidRuntime(3283): at android.app.ActivityThread.handleBindApplication(ActivityThread.java:3909)
03-01 16:30:37.077: E/AndroidRuntime(3283): at android.app.ActivityThread.access$1300(ActivityThread.java:122)
03-01 16:30:37.077: E/AndroidRuntime(3283): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1184)
03-01 16:30:37.077: E/AndroidRuntime(3283): at android.os.Handler.dispatchMessage(Handler.java:99)
03-01 16:30:37.077: E/AndroidRuntime(3283): at android.os.Looper.loop(Looper.java:137)
03-01 16:30:37.077: E/AndroidRuntime(3283): at android.app.ActivityThread.main(ActivityThread.java:4340)
03-01 16:30:37.077: E/AndroidRuntime(3283): at java.lang.reflect.Method.invokeNative(Native Method)
03-01 16:30:37.077: E/AndroidRuntime(3283): at java.lang.reflect.Method.invoke(Method.java:511)
03-01 16:30:37.077: E/AndroidRuntime(3283): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784)
03-01 16:30:37.077: E/AndroidRuntime(3283): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551)
03-01 16:30:37.077: E/AndroidRuntime(3283): at dalvik.system.NativeStart.main(Native Method)
03-01 16:30:37.077: E/AndroidRuntime(3283): Caused by: java.lang.NullPointerException
03-01 16:30:37.077: E/AndroidRuntime(3283): at android.app.LoadedApk.initializeJavaContextClassLoader(LoadedApk.java:362)
03-01 16:30:37.077: E/AndroidRuntime(3283): at android.app.LoadedApk.getClassLoader(LoadedApk.java:305)
03-01 16:30:37.077: E/AndroidRuntime(3283): at android.app.LoadedApk.makeApplication(LoadedApk.java:474)
03-01 16:30:37.077: E/AndroidRuntime(3283): ... 11 more
03-01 16:30:46.506: D/dalvikvm(3315): GC_FOR_ALLOC freed 58K, 4% free 6909K/7171K, paused 52ms
03-01 16:30:46.517: I/dalvikvm-heap(3315): Grow heap (frag case) to 7.309MB for 488976-byte allocation
03-01 16:30:46.656: D/dalvikvm(3315): GC_CONCURRENT freed 1K, 4% free 7385K/7687K, paused 4ms+3ms
03-01 16:30:47.206: D/gralloc_goldfish(3315): Emulator without GPU emulation detected.
03-01 16:30:47.356: W/TextLayoutCache(3315): computeValuesWithHarfbuzz -- need to force to single run
03-01 16:30:52.366: D/InputEventConsistencyVerifier(3315): KeyEvent: ACTION_UP but key was not down.
03-01 16:30:52.366: D/InputEventConsistencyVerifier(3315): in [email protected]
03-01 16:30:52.366: D/InputEventConsistencyVerifier(3315): 0: sent at 20208706000000, KeyEvent { action=ACTION_UP, keyCode=KEYCODE_TAB, scanCode=15, metaState=0, flags=0x8, repeatCount=0, eventTime=20208706, downTime=20208634, deviceId=0, source=0x101 }
03-01 16:30:53.956: I/LoginDetail(3315): Username [email protected] admin
03-01 16:30:54.036: D/dalvikvm(3315): GC_FOR_ALLOC freed 72K, 3% free 7633K/7815K, paused 44ms
03-01 16:30:54.356: I/myLogin(3315): 1
03-01 16:30:54.726: D/dalvikvm(3315): GC_CONCURRENT freed 362K, 7% free 7694K/8199K, paused 29ms+6ms
03-01 16:30:55.026: I/AllFolders(3315): anyType{TreeData=anyType{ID=13002; FolderName=My Drive; ParentID=0; CreatedBy=1; }; TreeData=anyType{ID=13006; FolderName=Testing1; ParentID=0; CreatedBy=1; }; TreeData=anyType{ID=13007; FolderName=Testing123; ParentID=0; CreatedBy=1; }; }
03-01 16:30:55.506: D/dalvikvm(3315): GC_CONCURRENT freed 362K, 7% free 7767K/8263K, paused 24ms+7ms
03-01 16:30:55.886: W/IInputConnectionWrapper(3315): finishComposingText on inactive InputConnection
03-01 16:30:57.246: I/FolderID(3315): 13002
03-01 16:30:57.246: I/User_ID(3315): 1
03-01 16:30:57.297: D/dalvikvm(3315): GC_FOR_ALLOC freed 17K, 5% free 7880K/8263K, paused 48ms
03-01 16:30:57.297: I/dalvikvm-heap(3315): Grow heap (frag case) to 8.041MB for 262160-byte allocation
03-01 16:30:57.356: D/dalvikvm(3315): GC_FOR_ALLOC freed 3K, 6% free 8133K/8583K, paused 52ms
Ну да, это только принимает подстроку из индекса символа 1, потому что это явно то, что вы рассказали об этом ... «Последний подстроки» не имеет смысла без больше контекста ,Я отправил ответ, основанный исключительно на вашем примере, но ваш вопрос далеко не ясен. –
Прошу прощения, если мой вопрос непонятен, но спасибо за ваш ответ, я пытаюсь понять это. спасибо – Shweta
проблема в том, что у меня есть разные типы изображений, например .jpg, .png, .tif, я хочу, чтобы файл был name.jpg, тогда если subString «.jpg», то конкретное изображение отображается в моем пользовательском адаптере изображения. – Shweta