keyboard hides actionbar while using adjustPan

问题

I have a chat which is "mixed", the editText and send button is in java / native and my chat system is in a server and I load it inside of a webview.

I would like to adjust my webview with my keyboard when the user starts typing. I used adjustPan for that and works, but now my actionbar somehow is hidden when the keyboard is open.

Here is part of my android manifest for my Activity:

    <activity
        android:name=".MainActivity"
        android:label="@string/app_name"
        android:configChanges="keyboard|keyboardHidden|orientation|screenSize"
        android:windowSoftInputMode="adjustPan">
    </activity>

Here is my chat.xml:

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">

<WebView
    android:id="@+id/webview"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:layout_alignParentTop="true"
    android:layout_above="@+id/llFooter">
</WebView>

<LinearLayout
    android:id="@id/llFooter"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_alignParentBottom="true"
    android:orientation="horizontal">

    <EditText
        android:id="@+id/chat_message"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_weight="0.9"
        android:maxLines="3"
        android:hint="Schreibe deine Nachricht hier..">
    </EditText>

    <Button
        android:id="@+id/chat_button"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_weight="0.1"
        android:text=">">
    </Button>
</LinearLayout>
</RelativeLayout>

Note: my chat is a fragment

Anyone has an idea how can I fix it?

I already checked these links without success:

ActionBar is hiding when keyboard appears

Soft Keyboard Hiding ActionBar while using adjustPan

EDIT 1: SCREENSHOTS ADDED

AdjustPan: The actionbar is hidden but the chat webview fits with the keyboard AdjustResize: The actionbar is not hidden but the chat webview doesnt fit. Should scroll down until the last messages

回答1:

Here is the solution for this fix

• android:windowSoftInputMode="adjustResize" in Manifest File
• Make a class "CommentKeyBoardFix.Java" and copy and paste the below code.

public class CommentKeyBoardFix
{
private View mChildOfContent;
private int usableHeightPrevious;
private FrameLayout.LayoutParams frameLayoutParams;
private Rect contentAreaOfWindowBounds = new Rect();

public CommentKeyBoardFix(Activity activity)
{
    FrameLayout content = activity.findViewById(android.R.id.content);
    mChildOfContent = content.getChildAt(0);
    mChildOfContent.getViewTreeObserver().addOnGlobalLayoutListener(this::possiblyResizeChildOfContent);
    frameLayoutParams = (FrameLayout.LayoutParams) mChildOfContent.getLayoutParams();
}

private void possiblyResizeChildOfContent()
{
    int usableHeightNow = computeUsableHeight();
    if (usableHeightNow != usableHeightPrevious)
    {
        int heightDifference = 0;
        if (heightDifference > (usableHeightNow /4))
        {
            // keyboard probably just became visible
            frameLayoutParams.height = usableHeightNow - heightDifference;
        }
        else
        {
            // keyboard probably just became hidden
            frameLayoutParams.height = usableHeightNow;
        }
        mChildOfContent.layout(contentAreaOfWindowBounds.left, contentAreaOfWindowBounds.top, contentAreaOfWindowBounds.right, contentAreaOfWindowBounds.bottom);
        mChildOfContent.requestLayout();
        usableHeightPrevious = usableHeightNow;
    }
}

private int computeUsableHeight()
{
    mChildOfContent.getWindowVisibleDisplayFrame(contentAreaOfWindowBounds);
    return contentAreaOfWindowBounds.height();
}
}

And then call this class in your Activity or Fragment

For Kotlin,

setContentView(R.layout.your_comments_layout)
CommentKeyBoardFix(this)

or

For Java

new CommentKeyBoardFix(this)

来源：https://stackoverflow.com/questions/25892331/keyboard-hides-actionbar-while-using-adjustpan