SoftKeyboard.java 文件源码

/**
 * Use this to monitor key events being delivered to the application.
 * We get first crack at them, and can either resume them or let them
 * continue to the app.
 */
@Override public boolean onKeyUp(int keyCode, KeyEvent event) {
    // If we want to do transformations on text being entered with a hard
    // keyboard, we need to process the up events to update the meta key
    // state we are tracking.
    if (PROCESS_HARD_KEYS) {
        if (mPredictionOn) {
            mMetaState = MetaKeyKeyListener.handleKeyUp(mMetaState,
                    keyCode, event);
        }
    }

    return super.onKeyUp(keyCode, event);
}