本文整理了Java中android.app.Activity.openFileInput()方法的一些代码示例，展示了Activity.openFileInput()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Activity.openFileInput()方法的具体详情如下：
包路径：android.app.Activity
类名称：Activity
方法名：openFileInput

Activity.openFileInput介绍

暂无

代码示例

代码示例来源：origin: com.uphyca/android-junit4-robolectric

/**
 * @param name
 * @return
 * @throws FileNotFoundException
 * @see android.content.ContextWrapper#openFileInput(java.lang.String)
 */
public FileInputStream openFileInput(String name) throws FileNotFoundException {
  return mActivity.openFileInput(name);
}

代码示例来源：origin: seemoo-lab/fitness-app

/**
 * Loads a file from internal storage
 * @param fileName The fileName of the file.
 * @param activity The current activity.
 * @return The loaded file.
 */
private static String load(String fileName, Activity activity) {
  String result = "";
  try {
    FileInputStream inputStream = activity.openFileInput(fileName);
    byte[] input = new byte[inputStream.available()];
    while (input.length !=0 && inputStream.read(input) != -1) {
      result += new String(input);
    }
    inputStream.close();
  } catch (FileNotFoundException e) {
    Log.e(TAG, "No old file to load with key '" + fileName + "'");
    return null;
  } catch (IOException e) {
    Log.e(TAG, e.toString());
    return null;
  }
  Log.e(TAG, "loaded file from external storage: " + fileName);
  return result;
}

代码示例来源：origin: powerpoint45/BasicLauncher

public static ShortcutSerializableData loadSerializedShortcutData(){
  ObjectInputStream inputStram = null;
  try{
    inputStram = new ObjectInputStream(MainActivity.activity.openFileInput("shortcutdata"));
    Object obj = inputStram.readObject();
    if (obj instanceof ShortcutSerializableData){
      return (ShortcutSerializableData)obj;
    }else
      return null;
  }catch (EOFException e){
    e.printStackTrace();
  }catch (ClassNotFoundException e){
    e.printStackTrace();
  }catch (FileNotFoundException e){
    e.printStackTrace();
  }catch (IOException e){
    e.printStackTrace();
  }finally{
    try{
      if (inputStram!=null){
        inputStram.close();
      }
    }catch (IOException e){
      e.printStackTrace();
    }
  }
  return null;
}

代码示例来源：origin: powerpoint45/BasicLauncher

inputStram = new ObjectInputStream(MainActivity.activity.openFileInput("data"));
Object obj = inputStram.readObject();

代码示例来源：origin: lessthanoptimal/BoofAndroidDemo

public void loadList() {
  list.clear();
  try {
    FileInputStream inputStream = owner.openFileInput(FILE_NAME);
    BufferedReader input = new BufferedReader(new InputStreamReader(inputStream));
    while (true) {
      String line = input.readLine();
      if (line == null)
        break;
      Info info = new Info();
      int where = findSpace(line, 0);
      info.id = Integer.parseInt(line.substring(0, where));
      int start = where + 1;
      where = findSpace(line, where + 1);
      info.sideLength = Double.parseDouble(line.substring(start, where));
      start = where + 1;
      where = findSpace(line, where + 1);
      info.units = UnitsDistance.valueOf(line.substring(start, where));
      info.name = line.substring(where + 1, line.length());
      list.add(info);
    }
    inputStream.close();
  } catch( FileNotFoundException ignore) {
    Log.d(TAG,"Fiducial index file not found");
  } catch (IOException e) {
    throw new RuntimeException(e);
  }
}

代码示例来源：origin: AEFeinstein/mtg-familiar

/**
 * Read the wishlist from a file and return it as an ArrayList<MtgCard>
 *
 * @param activity     A context to open the file and pop toasts with
 * @param loadFullData true to load all card data from the database, false to just read the file
 * @return The wishlist in ArrayList form
 */
public static ArrayList<MtgCard> ReadWishlist(Activity activity, boolean loadFullData) throws FamiliarDbException {
  ArrayList<MtgCard> lWishlist = new ArrayList<>();
  int orderAddedIdx = 0;
  try {
    String line;
    try (BufferedReader br = new BufferedReader(new InputStreamReader(activity.openFileInput(WISHLIST_NAME)))) {
      /* Read each line as a card, and add them to the ArrayList */
      while ((line = br.readLine()) != null) {
        MtgCard card = MtgCard.fromWishlistString(line, false, activity);
        card.setIndex(orderAddedIdx++);
        lWishlist.add(card);
      }
    }
  } catch (NumberFormatException e) {
    SnackbarWrapper.makeAndShowText(activity, e.getLocalizedMessage(), SnackbarWrapper.LENGTH_LONG);
  } catch (IOException e) {
    /* Catches file not found exception when wishlist doesn't exist */
  }
  if (loadFullData && !lWishlist.isEmpty()) {
    MtgCard.initCardListFromDb(activity, lWishlist);
  }
  return lWishlist;
}

代码示例来源：origin: AEFeinstein/mtg-familiar

try (BufferedReader br = new BufferedReader(new InputStreamReader(activity.openFileInput(deckName)))) {
  boolean isSideboard;

代码示例来源：origin: ajavamind/Processing-Cardboard

stream = activity.openFileInput(filename);
if (stream != null) {
  return stream;