安卓监听键盘弹出/隐藏

尝试了N多种监听键盘弹出/隐藏的监听方法,终于找到实用的方法,再次记录一下:

给页面的最外层布局添加布局监听事件:

     //获取屏幕高度,初始化定义键盘的高度
               int  screenHeight = this.getWindowManager().getDefaultDisplay().getHeight();
        //阀值设置为屏幕高度的1/3
        keyHeight = screenHeight / 3;

     rl_event.addOnLayoutChangeListener(new View.OnLayoutChangeListener() {
            @Override
            public void onLayoutChange(View v, int left, int top, int right, int bottom, int oldLeft, int oldTop, int oldRight, int oldBottom) {

            }
        });

在监听方法里实现自己具体的操作:

  /**
     * 监听键盘弹出/隐藏
     */
    @Override
    public void onLayoutChange(View v, int left, int top, int right, int bottom, int oldLeft, int oldTop, int oldRight, int oldBottom) {
        //old是改变前的左上右下坐标点值，没有old的是改变后的左上右下坐标点值
        //现在认为只要控件将Activity向上推的高度超过了1/3屏幕高，就认为软键盘弹起
        if (oldBottom != 0 && bottom != 0 && (oldBottom - bottom > keyHeight)) {
            RelativeLayout.LayoutParams linearParams = (RelativeLayout.LayoutParams) et_event
                    .getLayoutParams(); // 取控件当前的布局参数
            linearParams.height = UIUtils.dip2px(100);
            linearParams.width = LinearLayout.LayoutParams.MATCH_PARENT;// 控件的宽
            et_event.setLayoutParams(linearParams); // 使设置好的布局参数应用到控件

        } else if (oldBottom != 0 && bottom != 0 && (bottom - oldBottom > keyHeight)) {
            RelativeLayout.LayoutParams linearParams = (RelativeLayout.LayoutParams) et_event
                    .getLayoutParams(); // 取控件当前的布局参数
            linearParams.height = LinearLayout.LayoutParams.MATCH_PARENT;
            linearParams.width = LinearLayout.LayoutParams.MATCH_PARENT;// 控件的宽
            et_event.setLayoutParams(linearParams); // 使设置好的布局参数应用到控件

        }
    }