解决侵入式下 EditText位于屏幕底部时会被软键盘覆盖的问题

最新推荐文章于 2025-07-07 11:55:22 发布

初学者sun

最新推荐文章于 2025-07-07 11:55:22 发布

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本文提供了一个简单的方法来解决在全屏模式下，EditText被软键盘遮挡的问题。通过使用AndroidBug5497Workaround类，可以在键盘弹出时自动调整Activity布局，确保输入框不会被键盘遮住。

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转自：http://blog.youkuaiyun.com/huangxiaoguo1/article/details/53081229?locationNum=3&fps=1

源码地址：http://download.youkuaiyun.com/detail/guojiel/9587855

解决侵入式下 EditText位于屏幕底部时会被软键盘覆盖的问题

全屏模式下，即使将activity的windowSoftInputMode的属性设置为：adjustResize，在键盘显示时它未将Activity的Screen向上推动

感谢Ricardo提供的轮子，他在stackoverflow找到了解决方案。有人已经封装好了该类，你只需引用就OK了。

使用方法
在你的Activity的oncreate()方法里调用AndroidBug5497Workaround.assistActivity(this);即可。
注意：在setContentView(R.layout.xxx)之后调用。

在AndroidManifest.xml

<!-- 聊天页面 -->
        <activity
            android:name=".ui.main.ChatActivity"
            android:launchMode="singleTask"
            android:screenOrientation="portrait"
            android:theme="@style/horizontal_slide"
            android:windowSoftInputMode="adjustResize" />

在AndroidBug5497Workaround 中

package cn.hnshangyu.officeautomationsystem.utils;

import android.app.Activity;
import android.graphics.Rect;
import android.view.View;
import android.view.ViewTreeObserver;
import android.widget.FrameLayout;

public class AndroidBug5497Workaround {


    public static void assistActivity (Activity activity) {
        new AndroidBug5497Workaround(activity);
    }

    private View mChildOfContent;
    private int usableHeightPrevious;
    private FrameLayout.LayoutParams frameLayoutParams;

    private AndroidBug5497Workaround(Activity activity) {
        FrameLayout content = (FrameLayout) activity.findViewById(android.R.id.content);
        mChildOfContent = content.getChildAt(0);
        mChildOfContent.getViewTreeObserver().addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
            public void onGlobalLayout() {
                possiblyResizeChildOfContent();
            }
        });
        frameLayoutParams = (FrameLayout.LayoutParams) mChildOfContent.getLayoutParams();
    }

    private void possiblyResizeChildOfContent() {
        int usableHeightNow = computeUsableHeight();
        if (usableHeightNow != usableHeightPrevious) {
            int usableHeightSansKeyboard = mChildOfContent.getRootView().getHeight();
            int heightDifference = usableHeightSansKeyboard - usableHeightNow;
            if (heightDifference > (usableHeightSansKeyboard/4)) {
                // keyboard probably just became visible
                frameLayoutParams.height = usableHeightSansKeyboard - heightDifference;
            } else {
                // keyboard probably just became hidden
                frameLayoutParams.height = usableHeightSansKeyboard;
            }
            mChildOfContent.requestLayout();
            usableHeightPrevious = usableHeightNow;
        }
    }

    private int computeUsableHeight() {
        Rect r = new Rect();
        mChildOfContent.getWindowVisibleDisplayFrame(r);
        return (r.bottom - r.top);
    }

}