Ich kann kein Bild von meinem lokalen Speicher in Android

Question

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Ich habe 20k Bilddateien in einem Ordner in meinem lokalen Speicher, ich muss das Bild von seinem Dateinamen aus dem lokalen Speicher anzeigen. Wie es geht? Ich legte meinen Code hier:

if (Environment.getExternalStorageState() 
      .equals(Environment.DIRECTORY_PICTURES)) { 
     String filePath = File.separator + "sdcard" + File.separator + "Android" + File.separator + "obb" + File.separator + "convertMp3ToDb" + File.separator + "ldoce6pics" + File.separator + fileName; 
     try { 
      FileInputStream fis = new FileInputStream(filePath); 
      String entry = null; 
      while ((entry = fis.toString()) != null) { 
       if (!entry.toString().isEmpty()) { 
        File Mytemp = File.createTempFile("TCL", "jpg", getContext().getCacheDir()); 
        Mytemp.deleteOnExit(); 
        FileOutputStream fos = new FileOutputStream(Mytemp); 
        for (int c = fis.read(); c != -1; c = fis.read()) { 
         try { 
          fos.write(c); 
         } catch (IOException e) { 
          e.printStackTrace(); 
         } 
        } 
        fos.close(); 
        FileInputStream MyFile = new FileInputStream(Mytemp); 
        final Bitmap bit = BitmapFactory.decodeStream(MyFile); 
        imageView.setImageBitmap(bit); 

       } 
      } 
      fis.close(); 

     } catch (IOException e) { 
      e.printStackTrace(); 

     } 
    } 

Answer 1

if (Environment.getExternalStorageState() 
      .equals(Environment.DIRECTORY_PICTURES)) { 
     String filePath = File.separator + "sdcard" + File.separator + "Android" + File.separator + "obb" + File.separator + "convertMp3ToDb" + File.separator + "ldoce6pics" + File.separator + fileName; 
     File f = new File(filePath); 
     if(f.exits()){ 

      Bitmap bm = BitmapFactory.decodeFile(f.getAbsolutePath()); 
      imageView.setImageBitmap(bm); 

     }else{ 
      // invalid path 
      } 
    } 
    } 

Aktualisierung Abschnitt:

if (Environment.getExternalStorageState() 
       .equals(Environment.DIRECTORY_PICTURES)) { 
    // this never be true see below image 
} 

Sie haben ähnliche

File file = new File(Environment.getExternalStorageState()+"/Android/obb/convertMp3ToDb/ldoce6pics/"+fileName); 

     if (file.exists()) { 
      // your condition should ne likr this. 
     }