android.view.View#getWindowToken ( )源码实例Demo

public void showIndicator(View parent, Rect touchBounds) {
    if (isShowing()) {
        mPopupView.mMarker.animateOpen();
        return;
    }

    IBinder windowToken = parent.getWindowToken();
    if (windowToken != null) {
        WindowManager.LayoutParams p = createPopupLayout(windowToken);

        p.gravity = Gravity.TOP | GravityCompat.START;
        updateLayoutParamsForPosiion(parent, p, touchBounds.bottom);
        mShowing = true;

        translateViewIntoPosition(touchBounds.centerX());
        invokePopup(p);
    }
}
 

public void showIndicator(View parent) {
        if (isShowing()) {
//            mPopupView.mMarker.animateOpen();
            return;
        }

        IBinder windowToken = parent.getWindowToken();

        if (windowToken != null) {
            WindowManager.LayoutParams p = createPopupLayout(windowToken);

            p.gravity = Gravity.TOP | GravityCompat.START;
            updateLayoutParamsForPosiion(parent, p);
            mShowing = true;
            invokePopup(p);
        }

    }
 

public void showIndicator(View parent, Point point) {
    if (isShowing()) {
        mPopupView.mMarker.animateOpen();
        return;
    }

    IBinder windowToken = parent.getWindowToken();
    if (windowToken != null) {
        WindowManager.LayoutParams p = createPopupLayout(windowToken);

        /** Raw bit controlling whether the layout direction is relative or not (START/END instead of
         * absolute LEFT/RIGHT).
         */
        int RELATIVE_LAYOUT_DIRECTION = 0x00800000;

        /** Push object to x-axis position at the start of its container, not changing its size. */
        int START = RELATIVE_LAYOUT_DIRECTION | Gravity.LEFT;

        p.gravity = Gravity.TOP | START;
        updateLayoutParamsForPosition(parent, p, point.y);
        mShowing = true;

        translateViewIntoPosition(point.x);
        invokePopup(p);
    }
}
 

/**
* Method to hide keyboard if it's open
*/
public void hideKeyboard() {
  try {
    Activity activity = getActivity();
    if (activity == null) {
      return;
    }
    InputMethodManager input
          = (InputMethodManager) activity.getSystemService(Activity.INPUT_METHOD_SERVICE);
    if (input == null) {
      return;
    }
    View currentFocus = activity.getCurrentFocus();
    if (currentFocus == null || currentFocus.getWindowToken() == null) {
      return;
    }

    input.hideSoftInputFromWindow(currentFocus.getWindowToken(), 0);
  } catch (Exception e) {
      // ignoring any exceptions
  }
}
 

/**
 * Bind the dialog with a window token.
 * <p>Useful to display it from a service.
 *
 * @param view The view to bind the dialog.
 * @param dialog The dialog to be displayed.
 * @param type The dialog type.
 * @param windowAnimations The custom animation used for the window.
 *
 * @return The bound dialog with the supplied view.
 */
public static Dialog bindDialog(@Nullable View view,
        @NonNull Dialog dialog, int type, @StyleRes int windowAnimations) {
    Window window = dialog.getWindow();

    if (window != null) {
        if (view != null && view.getWindowToken() != null) {
            window.getAttributes().token = view.getWindowToken();
        }

        window.setType(type);
        window.setWindowAnimations(windowAnimations);
        window.addFlags(WindowManager.LayoutParams.FLAG_ALT_FOCUSABLE_IM);
    }

    return dialog;
}
 

/**
 * 根据传入控件的坐标和用户的焦点坐标，判断是否隐藏键盘，如果点击的位置在控件内，则不隐藏键盘
 *
 * @param view
 *            控件view
 * @param event
 *            焦点位置
 * @return 是否隐藏
 */
public static void hideKeyboard(MotionEvent event, View view,
                                Activity activity) {
    try {
        if (view != null && view instanceof EditText) {
            int[] location = { 0, 0 };
            view.getLocationInWindow(location);
            int left = location[0], top = location[1], right = left
                    + view.getWidth(), bootom = top + view.getHeight();
            // 判断焦点位置坐标是否在空间内，如果位置在控件外，则隐藏键盘
            if (event.getRawX() < left || event.getRawX() > right
                    || event.getY() < top || event.getRawY() > bootom) {
                // 隐藏键盘
                IBinder token = view.getWindowToken();
                InputMethodManager inputMethodManager = (InputMethodManager) activity
                        .getSystemService(Context.INPUT_METHOD_SERVICE);
                inputMethodManager.hideSoftInputFromWindow(token,
                        InputMethodManager.HIDE_NOT_ALWAYS);
            }
        }
    } catch (Exception e) {
        e.printStackTrace();
    }
}
 

public void showIndicator(View parent, Rect touchBounds) {
    if (isShowing()) {
        mPopupView.mMarker.animateOpen();
        return;
    }

    IBinder windowToken = parent.getWindowToken();
    if (windowToken != null) {
        WindowManager.LayoutParams p = createPopupLayout(windowToken);

        p.gravity = Gravity.TOP | GravityCompat.START;
        updateLayoutParamsForPosiion(parent, p, touchBounds.bottom);
        mShowing = true;

        translateViewIntoPosition(touchBounds.centerX());
        invokePopup(p);
    }
}
 

private void registerListener(View anchor) {
    // Don't do anything if we haven't managed to patch the super listener.
    // And don't bother attaching the listener if the anchor view isn't
    // attached. This means we'll only have to deal with the real VTO owned
    // by the ViewRoot.
    if (mSuperScrollListener != null) {
        ViewTreeObserver vto = (anchor.getWindowToken() != null) ? anchor.getViewTreeObserver()
                : null;
        if (vto != mViewTreeObserver) {
            if (mViewTreeObserver != null && mViewTreeObserver.isAlive()) {
                mViewTreeObserver.removeOnScrollChangedListener(mSuperScrollListener);
            }
            if ((mViewTreeObserver = vto) != null) {
                vto.addOnScrollChangedListener(mSuperScrollListener);
            }
        }
    }
}
 

private void registerListener(View anchor) {
    if (mSuperScrollListener != null) {
        ViewTreeObserver vto = (anchor.getWindowToken() != null) ? anchor.getViewTreeObserver() : null;
        if (vto != mViewTreeObserver) {
            if (mViewTreeObserver != null && mViewTreeObserver.isAlive()) {
                mViewTreeObserver.removeOnScrollChangedListener(mSuperScrollListener);
            }
            if ((mViewTreeObserver = vto) != null) {
                vto.addOnScrollChangedListener(mSuperScrollListener);
            }
        }
    }
}
 

public void run() {
    mMenu.changeMenuMode();
    final View menuView = (View) mMenuView;
    if (menuView != null && menuView.getWindowToken() != null && mPopup.tryShow()) {
        mOverflowPopup = mPopup;
    }
    mPostedOpenRunnable = null;
}
 

/**
 * 隐藏输入法
 *
 * @param currentFocusView 当前焦点view
 */
public static void hideKeyboard(View currentFocusView) {
    if (currentFocusView != null) {
        IBinder token = currentFocusView.getWindowToken();
        if (token != null) {
            InputMethodManager im = (InputMethodManager) currentFocusView.getContext().getSystemService(Context.INPUT_METHOD_SERVICE);
            im.hideSoftInputFromWindow(token, 0);
        }
    }
}
 

@Override
public void onScopeStart(Disposable d) {
    disposable = d;
    final View view = this.view;
    if (view == null)
        throw new NullPointerException("view is null");
    boolean isAttached = (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT && view.isAttachedToWindow())
        || view.getWindowToken() != null;
    if (!isAttached && !ignoreAttach)
        throw new OutsideScopeException("View is not attached!");
    view.addOnAttachStateChangeListener(this);
}
 

public void run() {
    mMenu.changeMenuMode();
    final View menuView = (View) mMenuView;
    if (menuView != null && menuView.getWindowToken() != null && mPopup.tryShow()) {
        mOverflowPopup = mPopup;
    }
    mPostedOpenRunnable = null;
}
 

protected void removeHeaderViewFromActivity(View headerView) {
    mAddHeaderViewRunnable.finish();

    if (headerView.getWindowToken() != null) {
        mActivity.getWindowManager().removeViewImmediate(headerView);
    }
}
 

public void run() {
    mMenu.changeMenuMode();
    final View menuView = (View) mMenuView;
    if (menuView != null && menuView.getWindowToken() != null && mPopup.tryShow()) {
        mOverflowPopup = mPopup;
    }
    mPostedOpenRunnable = null;
}
 

/**
 * Hides the already popped up keyboard from the screen.
 *
 * @param context Context to get current focus.
 */
public static void hideKeyboard(Context context) {
    try {
        InputMethodManager imm = (InputMethodManager) context.getSystemService(Context.INPUT_METHOD_SERVICE);
        View currentFocus = ((Activity) context).getCurrentFocus();
        if (imm != null && currentFocus != null) {
            IBinder windowToken = currentFocus.getWindowToken();
            if (windowToken != null) {
                imm.hideSoftInputFromWindow(windowToken, 0);
            }
        }
    } catch (Exception e) {
        Log.e(LOG_TAG, "Can't even hide keyboard " + e.getMessage());
    }
}
 

private void registerListener(View anchor) {
    if (mSuperScrollListener != null) {
        ViewTreeObserver vto = (anchor.getWindowToken() != null) ? anchor.getViewTreeObserver() : null;
        if (vto != mViewTreeObserver) {
            if (mViewTreeObserver != null && mViewTreeObserver.isAlive()) {
                mViewTreeObserver.removeOnScrollChangedListener(mSuperScrollListener);
            }
            if ((mViewTreeObserver = vto) != null) {
                vto.addOnScrollChangedListener(mSuperScrollListener);
            }
        }
    }
}
 

public static void hideSoftKeyboard(Activity act) {
    InputMethodManager inputMethodManager = (InputMethodManager) act.getSystemService(Context.INPUT_METHOD_SERVICE);
    if(inputMethodManager != null ) {
        View localView = act.getCurrentFocus();
        if(localView != null && localView.getWindowToken() != null ) {
            IBinder windowToken = localView.getWindowToken();
            inputMethodManager.hideSoftInputFromWindow(windowToken, 0);
        }
    }
}
 

private void handleDestroyActivity(IBinder token, boolean finishing,
        int configChanges, boolean getNonConfigInstance) {
    ActivityClientRecord r = performDestroyActivity(token, finishing,
            configChanges, getNonConfigInstance);
    if (r != null) {
        cleanUpPendingRemoveWindows(r);
        WindowManager wm = r.activity.getWindowManager();
        View v = r.activity.mDecor;
        if (v != null) {
            if (r.activity.mVisibleFromServer) {
                mNumVisibleActivities--;
            }
            IBinder wtoken = v.getWindowToken();
            if (r.activity.mWindowAdded) {
                if (r.onlyLocalRequest) {
                    // Hold off on removing this until the new activity's
                    // window is being added.
                    r.mPendingRemoveWindow = v;
                    r.mPendingRemoveWindowManager = wm;
                } else {
                    wm.removeViewImmediate(v);
                }
            }
            if (wtoken != null && r.mPendingRemoveWindow == null) {
                WindowManagerImpl.getDefault().closeAll(wtoken,
                        r.activity.getClass().getName(), "Activity");
            }
            r.activity.mDecor = null;
        }
        if (r.mPendingRemoveWindow == null) {
            // If we are delaying the removal of the activity window, then
            // we can't clean up all windows here.  Note that we can't do
            // so later either, which means any windows that aren't closed
            // by the app will leak.  Well we try to warning them a lot
            // about leaking windows, because that is a bug, so if they are
            // using this recreate facility then they get to live with leaks.
            WindowManagerImpl.getDefault().closeAll(token,
                    r.activity.getClass().getName(), "Activity");
        }

        // Mocked out contexts won't be participating in the normal
        // process lifecycle, but if we're running with a proper
        // ApplicationContext we need to have it tear down things
        // cleanly.
        Context c = r.activity.getBaseContext();
        if (c instanceof ContextImpl) {
            ((ContextImpl) c).scheduleFinalCleanup(
                    r.activity.getClass().getName(), "Activity");
        }
    }
    if (finishing) {
        try {
            ActivityManagerNative.getDefault().activityDestroyed(token);
        } catch (RemoteException ex) {
            // If the system process has died, it's game over for everyone.
        }
    }
}
 

static boolean isAttachedToWindow(View view) {
    return view.getWindowToken() != null;
}