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				|  |  | +package com.cooleshow.base.utils;
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				|  |  | +
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				|  |  | +import android.app.Activity;
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				|  |  | +import android.graphics.Rect;
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				|  |  | +import android.os.Build;
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				|  |  | +import android.view.View;
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				|  |  | +import android.view.ViewTreeObserver;
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				|  |  | +import android.widget.FrameLayout;
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				|  |  | +
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				|  |  | +/**
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				|  |  | + * Author by pq, Date on 2023/1/10.
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				|  |  | + */
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				|  |  | +public class AndroidBug5497Workaround {
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				|  |  | +    public static void assistActivity(Activity activity) {
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				|  |  | +        new AndroidBug5497Workaround(activity);
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				|  |  | +    }
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				|  |  | +
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				|  |  | +    private View mChildOfContent;
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				|  |  | +    private int usableHeightPrevious;
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				|  |  | +    private FrameLayout.LayoutParams frameLayoutParams;
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				|  |  | +    private int contentHeight;
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				|  |  | +    private boolean isfirst = true;
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				|  |  | +    private Activity activity;
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				|  |  | +    private int statusBarHeight;
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				|  |  | +
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				|  |  | +    private AndroidBug5497Workaround(Activity activity) {
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				|  |  | +        //获取状态栏的高度
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				|  |  | +        int resourceId = activity.getResources().getIdentifier("status_bar_height", "dimen", "android");
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				|  |  | +        statusBarHeight = activity.getResources().getDimensionPixelSize(resourceId);
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				|  |  | +        this.activity = activity;
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				|  |  | +        FrameLayout content = (FrameLayout) activity.findViewById(android.R.id.content);
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				|  |  | +        mChildOfContent = content.getChildAt(0);
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				|  |  | +        //界面出现变动都会调用这个监听事件
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				|  |  | +        mChildOfContent.getViewTreeObserver().addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
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				|  |  | +            public void onGlobalLayout() {
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				|  |  | +                if (isfirst) {
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				|  |  | +                    contentHeight = mChildOfContent.getHeight();//兼容华为等机型
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				|  |  | +                    isfirst = false;
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				|  |  | +                }
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				|  |  | +                possiblyResizeChildOfContent();
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				|  |  | +            }
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				|  |  | +        });
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				|  |  | +        frameLayoutParams = (FrameLayout.LayoutParams)
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				|  |  | +                mChildOfContent.getLayoutParams();
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				|  |  | +    }
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				|  |  | +
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				|  |  | +    //重新调整跟布局的高度
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				|  |  | +    private void possiblyResizeChildOfContent() {
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				|  |  | +        int usableHeightNow = computeUsableHeight();
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				|  |  | +        //当前可见高度和上一次可见高度不一致 布局变动
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				|  |  | +        if (usableHeightNow != usableHeightPrevious) {
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				|  |  | +            //int usableHeightSansKeyboard2 = mChildOfContent.getHeight();//兼容华为等机型
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				|  |  | +            int usableHeightSansKeyboard = mChildOfContent.getRootView().getHeight();
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				|  |  | +            int heightDifference = usableHeightSansKeyboard - usableHeightNow;
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				|  |  | +            if (heightDifference > (usableHeightSansKeyboard / 4)) {
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				|  |  | +                // keyboard probably just became visible
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				|  |  | +                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
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				|  |  | +                    //frameLayoutParams.height = usableHeightSansKeyboard - heightDifference;
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				|  |  | +                    frameLayoutParams.height = usableHeightSansKeyboard - heightDifference + statusBarHeight;
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				|  |  | +                } else {
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				|  |  | +                    frameLayoutParams.height = usableHeightSansKeyboard - heightDifference;
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				|  |  | +                }
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				|  |  | +            } else {
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				|  |  | +                frameLayoutParams.height = contentHeight;
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				|  |  | +            }
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				|  |  | +            mChildOfContent.requestLayout();
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				|  |  | +            usableHeightPrevious = usableHeightNow;
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				|  |  | +        }
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				|  |  | +    }
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				|  |  | +
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				|  |  | +    /**
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				|  |  | +     * 计算mChildOfContent可见高度 ** @return
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				|  |  | +     */
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				|  |  | +    private int computeUsableHeight() {
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				|  |  | +        Rect r = new Rect();
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				|  |  | +        mChildOfContent.getWindowVisibleDisplayFrame(r);
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				|  |  | +        return (r.bottom - r.top);
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				|  |  | +    }
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				|  |  | +}
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