顯示的圖像僅

Question

的影像儲存在/storage/emulated/0/policeSuites/

想從默認庫policeSuites文件夾中查看所有圖像。

public void openFolder() { 

     File storageDir = Environment.getExternalStoragePublicDirectory("/Police photo suits"); 
     Intent intent = new Intent(Intent.ACTION_GET_CONTENT); 
     Uri uri = Uri.parse(String.valueOf(storageDir)); 
     intent.setDataAndType(uri, "image/*"); 
     startActivity(Intent.createChooser(intent, "Open folder")); 

    } 

Answer 1

 public void openFolder() { 

      File file = null; 
      if (!Environment.getExternalStorageState().equals(
        Environment.MEDIA_MOUNTED)) { 
       Toast.makeText(this, "Error! No SDCARD Found!", 
         Toast.LENGTH_LONG).show(); 
      } else { 
       file = new File(Environment.getExternalStorageDirectory() 
         .getPath() + "/" + getString(R.string.app_name)); 
      } 
      File[] listFile = file.listFiles(); 
      new HomeScreen.SingleMediaScanner(HomeScreen.this, listFile[0]); 

     } 

    public class SingleMediaScanner implements MediaScannerConnection.MediaScannerConnectionClient { 

     private MediaScannerConnection mMs; 
     private File mFile; 

     public SingleMediaScanner(Context context, File f) { 
      mFile = f; 
      mMs = new MediaScannerConnection(context, this); 
      mMs.connect(); 
     } 

     public void onMediaScannerConnected() { 
      mMs.scanFile(mFile.getAbsolutePath(), null); 
     } 

     public void onScanCompleted(String path, Uri uri) { 
      Intent intent = new Intent(Intent.ACTION_VIEW); 
      intent.setData(uri); 
      startActivity(intent); 
      mMs.disconnect(); 
     } 

    }