"Push up" 显示软输入时的列表视图而不是栏

Question

我在 View Pager 的页面中有这样的布局：

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@android:color/black">
    <LinearLayout
        android:id="@+id/bar"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="24dp"
        android:layout_alignParentTop="true"
        android:orientation="horizontal"
        android:gravity="center"
        android:background="@drawable/background_gray">
        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:textSize="16sp"
            android:paddingTop="15dp"
            android:paddingBottom="15dp"
            android:paddingLeft="3dp" />
    </LinearLayout>
    <RelativeLayout
        android:id="@+id/container_chat_box"
        android:background="@drawable/conversation_background_gray"
        android:layout_alignParentBottom="true"
        android:layout_marginBottom="50dp">
        <EditText
            android:id="@+id/chat_box"
            style="@style/ConversationChatBox" />
    </RelativeLayout>
    <ListView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_below="@+id/bar"
        android:background="@android:color/white"
        android:stackFromBottom="true"
        android:transcriptMode="normal"
        android:layout_above="@id/chat_box"
        android:paddingBottom="15dp"
        android:clipToPadding="false"
        android:divider="@null"
        android:dividerHeight="0dp"
        android:listSelector="@android:color/transparent" />
</RelativeLayout>

这是一个想法：

----------
[   bar   ]
[list view]
[list view]
[list view]
[list view]
[edit text]

当我点击编辑文本时，我希望栏保持原样（在屏幕顶部），但列表视图被推上去，所以它看起来像：

------------
[   bar   ]
[list view]
[list view]
[edit text]
[keyboard ]

我得到的结果（条被推高并消失）：

------------
[list view]
[list view]
[list view]
[edit text]
[keyboard ]

我的 AndroidManifest 上有这个：

android:windowSoftInputMode="adjustPan"

我尝试了不同的值组合来设置 android:windowSoftInputMode，但我要么让键盘覆盖编辑文本，要么将整个屏幕向上推。

有没有办法在向上推列表视图时将栏保持在原位？提前谢谢你。

Answer 1

我能够解决这个问题，尽管到目前为止只在几部手机上进行了测试。

这就是解决方案：

1) 将软输入模式更改为android:windowSoftInputMode="adjustResize"并在布局根视图中添加android:fitsSystemWindows="true"。

2) 创建了一个扩展 RelativeLayout（代码如下）的 CustomInsetsLayout class，因此我可以控制屏幕调整大小时布局发生的情况。

3) 此时我在布局底部有一个不需要的黑条。该栏是本应隐藏在导航栏下方的边距底部，但负责该栏的 FULLSCREEN 标志不适用于 adjustResize。因此，我必须向 CustomInsetsLayout 添加代码，以在屏幕调整大小时从根视图中删除底部边距。

这就是 CustomInsetsLayout class 的样子（class 描述中的参考和注释）：

package com.playchat.ui.full;

import android.content.Context;
import android.graphics.Rect;
import android.os.Build;
import android.util.AttributeSet;
import android.view.WindowInsets;
import android.widget.RelativeLayout;

/**
 * 
 *
 * @author Kevin
 *         Date Created: 3/7/14
 *
 * https://code.google.com/p/android/issues/detail?id=63777
 *
 * When using a translucent status bar on API 19+, the window will not
 * resize to make room for input methods (i.e.
 * {@link android.view.WindowManager.LayoutParams#SOFT_INPUT_ADJUST_RESIZE} and
 * {@link android.view.WindowManager.LayoutParams#SOFT_INPUT_ADJUST_PAN} are
 * ignored).
 *
 * To work around this; override {@link #fitSystemWindows(android.graphics.Rect)},
 * capture and override the system insets, and then call through to FrameLayout's
 * implementation.
 *
 * For reasons yet unknown, modifying the bottom inset causes this workaround to
 * fail. Modifying the top, left, and right insets works as expected.
 */
public class CustomInsetsLayout extends RelativeLayout {
    private int[] mInsets = new int[4];

    public CustomInsetsLayout(Context context) {
        super(context);
    }

    public CustomInsetsLayout(Context context, AttributeSet attrs) {
        super(context, attrs);
    }

    public CustomInsetsLayout(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
    }

    public final int[] getInsets() {
        return mInsets;
    }

    @Override
    protected final boolean fitSystemWindows(Rect insets) {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
            // Intentionally do not modify the bottom inset. For some reason,
            // if the bottom inset is modified, window resizing stops working.
            // TODO: Figure out why.
            mInsets[0] = insets.left;
            mInsets[1] = insets.top;
            mInsets[2] = insets.right;

            insets.left = 0;
            insets.top = 0;
            insets.right = 0;

            if (insets.bottom > 0) {
                // Remove bottom margin from the root view
                RelativeLayout.LayoutParams params = (RelativeLayout.LayoutParams) getLayoutParams();
                params.bottomMargin = 0;
                setLayoutParams(params);

            }
        }

        return super.fitSystemWindows(insets);
    }

    @Override
    public final WindowInsets onApplyWindowInsets(WindowInsets insets) {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT_WATCH) {
            if (insets.getSystemWindowInsetBottom() > 0) {
                // Remove bottom margin from the root view
                RelativeLayout.LayoutParams params = (RelativeLayout.LayoutParams) getLayoutParams();
                params.bottomMargin = 0;
                setLayoutParams(params);

            }
            mInsets[0] = insets.getSystemWindowInsetLeft();
            mInsets[1] = insets.getSystemWindowInsetTop();
            mInsets[2] = insets.getSystemWindowInsetRight();
            return super.onApplyWindowInsets(insets.replaceSystemWindowInsets(0, 0, 0,
                insets.getSystemWindowInsetBottom()));

        } else {
            return insets;
        }
    }
}

"Push up" 显示软输入时的列表视图而不是栏

"Push up" a listview but not the bar when soft input is shown

android

listview

android-layout

window-soft-input-mode

adjustpan