Android 文件的选择

Android 文件的选择

打开文件选择器

    private void showFileChooser() {
        Intent intent = new Intent(Intent.ACTION_GET_CONTENT); 
        intent.setType("*/*"); 
        intent.addCategory(Intent.CATEGORY_OPENABLE);

        try {
            startActivityForResult( Intent.createChooser(intent, "Select a File to Upload"), FILE_SELECT_CODE);
        } catch (android.content.ActivityNotFoundException ex) {
            Toast.makeText(this, "Please install a File Manager.",  Toast.LENGTH_SHORT).show();
        }
    }

　　

选择的结果

    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data)  {
        switch (requestCode) {
            case FILE_SELECT_CODE:      
            if (resultCode == RESULT_OK) {  
                // Get the Uri of the selected file 
                Uri uri = data.getData();
                String path = FileUtils.getPath(this, uri);
            }           
            break;
        }
    super.onActivityResult(requestCode, resultCode, data);
    }

　

FileUtils文件

public class FileUtils {
	public static String getPath(Context context, Uri uri) {

		if ("content".equalsIgnoreCase(uri.getScheme())) {
			String[] projection = { "_data" };
			Cursor cursor = null;

			try {
				cursor = context.getContentResolver().query(uri, projection,null, null, null);
				int column_index = cursor.getColumnIndexOrThrow("_data");
				if (cursor.moveToFirst()) {
					return cursor.getString(column_index);
				}
			} catch (Exception e) {
				// Eat it
			}
		}

		else if ("file".equalsIgnoreCase(uri.getScheme())) {
			return uri.getPath();
		}

		return null;
	}
}

　　这个很简单。