android 监听软键盘弹起和关闭状态与点击空白区域软键盘隐藏

监听软键盘弹起与关闭状态 

很多例子上用的是大于100去判断，现在手机屏幕越来越大，分辨率越来越高，100的高度是不够的

view.getViewTreeObserver().addOnGlobalLayoutListener(
                new ViewTreeObserver.OnGlobalLayoutListener() {
                    @Override
                    public void onGlobalLayout() {
                        Rect r = new Rect();
                        view.getWindowVisibleDisplayFrame(r);
                        int screenHeight = view.getRootView()
                                .getHeight();
                        int heightDifference = screenHeight - (r.bottom);
                        if (heightDifference > 200) {
                            //软键盘显示
                            mIsSoftKeyboardShowing = true;
                            Log.e("TAG", "显示");
                        } else {
                            //软键盘隐藏
                            Log.e("TAG", "隐藏");
                            mIsSoftKeyboardShowing = false;

                        }
                    }

                });

第二种写法：监听软键盘弹起与关闭状态

不需要去界面里面写判断，定义一个 类实现ViewTreeObserver.OnGlobalLayoutListener，并在这里面做判断

package com.dreamlive.utils;

import android.graphics.Rect;
import android.view.View;
import android.view.ViewTreeObserver;

/**
 * 软键盘显示与隐藏监听
 *
 * @author 2017/7/7 / mengwei
 */
public class OnKeyboardChangeListener implements ViewTreeObserver.OnGlobalLayoutListener {

    private View mContainer;
    private OnChangeListener mOnChangerListener;

    public OnKeyboardChangeListener(View view, OnChangeListener onChangeListener) {
        mContainer = view;
        mOnChangerListener = onChangeListener;
    }

    @Override
    public void onGlobalLayout() {
        if (mOnChangerListener != null) {
            Rect rect = new Rect();
            mContainer.getWindowVisibleDisplayFrame(rect);
            int heightDifference = mContainer.getRootView().getHeight() - rect.bottom;
            if (heightDifference > 200) {
                mOnChangerListener.onKeyboardShow();
            } else {
                mOnChangerListener.onKeyboardHidden();
            }
        }
    }

    /**
     * 软键盘监听变化接口
     */
    public interface OnChangeListener {
        void onKeyboardShow();//显示接口

        void onKeyboardHidden();//隐藏接口
    }
}

在界面实现onChangeListener接口

    @Override
    public void onKeyboardShow() {
        Log.e("Tag", "show");
        mIsSoftKeyboardShowing = true;
    }

    @Override
    public void onKeyboardHidden() {
        Log.e("Tag", "hidden");
        mIsSoftKeyboardShowing = false;
    }

调用，view是editText的父布局

 view.getViewTreeObserver().addOnGlobalLayoutListener(new OnKeyboardChangeListener(view, this));

****************************点击空白区域软键盘隐藏*************************************

   boolean mIsSoftKeyboardShowing = false;

    @Override
    public boolean onTouchEvent(MotionEvent event) {
        if (mIsSoftKeyboardShowing) {
            InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
            if (imm != null) {
                imm.hideSoftInputFromWindow(getWindow().getDecorView().getWindowToken(), 0);
            }
            return true;
        } else {
            return super.onTouchEvent(event);
        }
    }

ok，结束了，仅做记录用。