android.view.KeyEvent类的使用及代码示例

x33g5p2x  于2022-01-23 转载在 其他  
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本文整理了Java中android.view.KeyEvent类的一些代码示例，展示了KeyEvent类的具体用法。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。KeyEvent类的具体详情如下：
包路径：android.view.KeyEvent
类名称：KeyEvent

KeyEvent介绍

暂无

代码示例

代码示例来源：origin: cSploit/android

@Override
  public boolean onKey(View v, int keyCode, KeyEvent event) {
    if (event.getAction() == KeyEvent.ACTION_DOWN
        && event.getKeyCode() == KeyEvent.KEYCODE_ENTER) {
      mOutput.append(Html.fromHtml("<font color=\"red\">" + mInput.getText().toString() + "</font>\n"));
      mSession.addCommand(mInput.getText().toString(), mReceiver);
      return true;
    }
    return false;
  }
});

代码示例来源：origin: stackoverflow.com

@Override
public boolean onKeyDown(int keyCode, KeyEvent event)  {
  if (Integer.parseInt(android.os.Build.VERSION.SDK) > 5
      && keyCode == KeyEvent.KEYCODE_BACK
      && event.getRepeatCount() == 0) {
    Log.d("CDA", "onKeyDown Called");
    onBackPressed();
    return true; 
  }
  return super.onKeyDown(keyCode, event);
}

@Override
public void onBackPressed() {
  Log.d("CDA", "onBackPressed Called");
  Intent setIntent = new Intent(Intent.ACTION_MAIN);
  setIntent.addCategory(Intent.CATEGORY_HOME);
  setIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
  startActivity(setIntent);
}

代码示例来源：origin: smuyyh/BookReader

@Override
  public boolean deleteSurroundingText(int beforeLength, int afterLength) {
    // magic: in latest Android, deleteSurroundingText(1, 0) will be called for backspace
    if (beforeLength == 1 && afterLength == 0) {
      // backspace
      return sendKeyEvent(new KeyEvent(KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_DEL))
          && sendKeyEvent(new KeyEvent(KeyEvent.ACTION_UP, KeyEvent.KEYCODE_DEL));
    }
    return super.deleteSurroundingText(beforeLength, afterLength);
  }
}

代码示例来源：origin: jdamcd/android-crop

@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
  if (keyCode == KeyEvent.KEYCODE_BACK && event.getRepeatCount() == 0) {
    event.startTracking();
    return true;
  }
  return super.onKeyDown(keyCode, event);
}

代码示例来源：origin: k9mail/k-9

@Override
public boolean dispatchKeyEvent(KeyEvent event) {
  boolean ret = false;
  if (KeyEvent.ACTION_DOWN == event.getAction()) {
    ret = onCustomKeyDown(event.getKeyCode(), event);
  }
  if (!ret) {
    ret = super.dispatchKeyEvent(event);
  }
  return ret;
}

代码示例来源：origin: hidroh/materialistic

@Test
public void testVolumeNavigation() {
  Intent intent = new Intent();
  WebItem webItem = new TestWebItem() {
    @Override
    public String getUrl() {
      return "http://example.com";
    }
    @Override
    public String getId() {
      return "1";
    }
  };
  intent.putExtra(ItemActivity.EXTRA_ITEM, webItem);
  controller = Robolectric.buildActivity(ItemActivity.class, intent);
  controller.create().start().resume().visible();
  activity = controller.get();
  activity.onKeyDown(KeyEvent.KEYCODE_VOLUME_UP,
      new KeyEvent(KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_VOLUME_UP));
  verify(keyDelegate).setScrollable(any(Scrollable.class), any(AppBarLayout.class));
  verify(keyDelegate).onKeyDown(anyInt(), any(KeyEvent.class));
  activity.onKeyUp(KeyEvent.KEYCODE_VOLUME_UP,
      new KeyEvent(KeyEvent.ACTION_UP, KeyEvent.KEYCODE_VOLUME_UP));
  verify(keyDelegate).onKeyUp(anyInt(), any(KeyEvent.class));
  activity.onKeyLongPress(KeyEvent.KEYCODE_VOLUME_UP,
      new KeyEvent(KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_VOLUME_UP));
  verify(keyDelegate).onKeyLongPress(anyInt(), any(KeyEvent.class));
}

代码示例来源：origin: wallabag/android-app

private static PendingIntent generateActionIntent(Context context, int mediaKeyEvent)
  {
    Intent intent = new Intent(Intent.ACTION_MEDIA_BUTTON);
    intent.setPackage(context.getPackageName());
    intent.putExtra(Intent.EXTRA_KEY_EVENT,
        new KeyEvent(KeyEvent.ACTION_DOWN, mediaKeyEvent));
    return PendingIntent.getBroadcast(context, mediaKeyEvent, intent, 0);
  }
}

代码示例来源：origin: TeamNewPipe/NewPipe

searchClear.setOnClickListener(v -> {
  if (DEBUG) Log.d(TAG, "onClick() called with: v = [" + v + "]");
  if (TextUtils.isEmpty(searchEditText.getText())) {
    NavigationHelper.gotoMainFragment(getFragmentManager());
    return;
  searchEditText.setText("");
  suggestionListAdapter.setItems(new ArrayList<>());
  showKeyboardSearch();
searchEditText.setOnClickListener(v -> {
  if (DEBUG) Log.d(TAG, "onClick() called with: v = [" + v + "]");
  if (isSuggestionsEnabled && errorPanelRoot.getVisibility() != View.VISIBLE) {
          && (event.getKeyCode() == KeyEvent.KEYCODE_ENTER
            || event.getAction() == EditorInfo.IME_ACTION_SEARCH)) {
        search(searchEditText.getText().toString(), new String[0], "");
        return true;

代码示例来源：origin: stackoverflow.com

final EditText edittext = (EditText) findViewById(R.id.edittext);
edittext.setOnKeyListener(new OnKeyListener() {
  public boolean onKey(View v, int keyCode, KeyEvent event) {
    // If the event is a key-down event on the "enter" button
    if ((event.getAction() == KeyEvent.ACTION_DOWN) &&
      (keyCode == KeyEvent.KEYCODE_ENTER)) {
     // Perform action on key press
     Toast.makeText(HelloFormStuff.this, edittext.getText(), Toast.LENGTH_SHORT).show();
     return true;
    }
    return false;
  }
});

代码示例来源：origin: aa112901/remusic

@Override
public void onReceive(final Context context, final Intent intent) {
  final String intentAction = intent.getAction();
  if (AudioManager.ACTION_AUDIO_BECOMING_NOISY.equals(intentAction)) {
    if (true)
      startService(context, MediaService.CMDPAUSE);
  } else if (Intent.ACTION_MEDIA_BUTTON.equals(intentAction)) {
    final KeyEvent event = intent.getParcelableExtra(Intent.EXTRA_KEY_EVENT);
    if (event == null) {
      return;
    final int keycode = event.getKeyCode();
    final int action = event.getAction();
    final long eventtime = event.getEventTime();
        } else if (event.getRepeatCount() == 0) {

代码示例来源：origin: huangfangyi/YiChat

private void editTextDelete(EditText editText) {
  if (!TextUtils.isEmpty(editText.getText())) {
    KeyEvent event = new KeyEvent(0, 0, 0, KeyEvent.KEYCODE_DEL, 0, 0, 0, 0, KeyEvent.KEYCODE_ENDCALL);
    editText.dispatchKeyEvent(event);
  }
}

代码示例来源：origin: stackoverflow.com

@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
  if (event.getAction() == KeyEvent.ACTION_DOWN) {
    switch (keyCode) {
      case KeyEvent.KEYCODE_BACK:
        if (mWebView.canGoBack()) {
          mWebView.goBack();
        } else {
          finish();
        }
        return true;
    }

  }
  return super.onKeyDown(keyCode, event);
}

代码示例来源：origin: libgdx/libgdx

@Override
public boolean onKeyDown (int keyCode, KeyEvent event) {
  Log.d("Test", "down keycode: " + event.getKeyCode());
  return super.onKeyDown(keyCode, event);
}

代码示例来源：origin: fookwood/Launcher3

@Override
  public boolean onKeyPreIme(int keyCode, KeyEvent event) {
    // If this is a back key, propagate the key back to the listener
    if (keyCode == KeyEvent.KEYCODE_BACK && event.getAction() == KeyEvent.ACTION_UP) {
      if (mBackKeyListener != null) {
        return mBackKeyListener.onBackKey();
      }
      return false;
    }
    return super.onKeyPreIme(keyCode, event);
  }
}

代码示例来源：origin: Neamar/KISS

@Override
  public boolean onKeyPreIme(int keyCode, KeyEvent event) {
    if (event.getKeyCode() == KeyEvent.KEYCODE_BACK && event.getAction() == KeyEvent.ACTION_UP)
      if (mEditorListener != null && mEditorListener.onEditorAction(this, android.R.id.closeButton, event))
        return true;
    return super.onKeyPreIme(keyCode, event);
  }
}

代码示例来源：origin: seven332/EhViewer

@Override
protected boolean handleMovementKey(TextView widget, Spannable buffer, int keyCode,
    int movementMetaState, KeyEvent event) {
  switch (keyCode) {
    case KeyEvent.KEYCODE_DPAD_CENTER:
    case KeyEvent.KEYCODE_ENTER:
      if (KeyEvent.metaStateHasNoModifiers(movementMetaState)) {
        if (event.getAction() == KeyEvent.ACTION_DOWN &&
            event.getRepeatCount() == 0 && action(CLICK, widget, buffer)) {
          return true;
        }
      }
      break;
  }
  return super.handleMovementKey(widget, buffer, keyCode, movementMetaState, event);
}

代码示例来源：origin: layerhq/Atlas-Android

/**
 * Works with hardware keyboard
 */
@Override
public boolean onKeyUp(int keyCode, KeyEvent event) {
  if (event.getAction() == KeyEvent.ACTION_UP && event.getKeyCode() == KeyEvent.KEYCODE_DEL && getText().length() == 0) {
    if (mListener != null) return mListener.onEmptyDel(EmptyDelEditText.this);
  }
  return super.onKeyUp(keyCode, event);
}

代码示例来源：origin: chat-sdk/chat-sdk-android

@Override
public boolean onKey(View v, int keyCode, KeyEvent event) {
  // if enter is pressed start calculating
  if(delegate != null) {
    delegate.get().startTyping();
  }
  if (keyCode == KeyEvent.KEYCODE_ENTER && event.getAction() == KeyEvent.ACTION_DOWN) {
    int editTextLineCount = ((EditText) v).getLineCount();
    if (editTextLineCount >= getResources().getInteger(R.integer.chat_sdk_max_message_lines))
      return true;
  }
  return false;
}

代码示例来源：origin: CooLoongWu/CoolChat

@Override
public boolean dispatchKeyEventPreIme(KeyEvent event) {
  if (event.getAction() == KeyEvent.KEYCODE_SOFT_LEFT) {
    LogUtils.e("dispatchKeyEventPreIme", "按下了返回键");
    if (mOnCancelInputLayout != null) {
      mOnCancelInputLayout.onCancelInputLayout();
    }
    return false;
  }
  return super.dispatchKeyEventPreIme(event);
}

代码示例来源：origin: stackoverflow.com

@Override
public boolean onKeyDown(int keyCode, KeyEvent event)  {
  if (keyCode == KeyEvent.KEYCODE_BACK && event.getRepeatCount() == 0) {
    // do something on back.
    return true;
  }

  return super.onKeyDown(keyCode, event);
}

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