在EditText和键盘之间添加边距

Question

因此，过去几年来，这个问题在这里已经被问过几次了，没有一个解决方案对我有用。

问题是，当我使用AdjustPan移动软键盘时，它隐藏了EditText的一部分，如下所示：

我尝试的解决方案是：

Solution 1 (2011)

Solution 2 (2014)

Solution 3 (2013)

大多数答案都包含使用AdjustPan/AdjustResize，所以我只想说它们都没有提供所需的解决方案（打开键盘时显示整个EditText）。

我当时在想也许在2019年可以解决此问题。

此布局的xml是：

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@color/colorWhite"
    tools:context=".ChatActivity">


    <androidx.appcompat.widget.ActionMenuView
        android:id="@+id/actionbar"
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:background="@color/colorGrayBox"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHeight_percent="0.1"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent">
    </androidx.appcompat.widget.ActionMenuView>

    <TextView
        android:id="@+id/tv_This"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginStart="24dp"
        android:layout_marginTop="16dp"
        android:fontFamily="@font/open_sans"
        android:text="@string/ActivityChat_This"
        android:textSize="12sp"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/actionbar" />

    <View
        android:id="@+id/v_Line"
        android:layout_width="match_parent"
        android:layout_height="1px"
        android:layout_marginLeft="24dp"
        android:layout_marginTop="16dp"
        android:layout_marginRight="24dp"
        android:background="@color/colorLightGray"
        app:layout_constraintTop_toBottomOf="@+id/tv_This" />

    <androidx.cardview.widget.CardView
        android:id="@+id/imagecard"
        android:layout_width="40dp"
        android:layout_height="40dp"
        android:layout_marginStart="16dp"
        app:cardCornerRadius="20dp"
        app:layout_constraintBottom_toBottomOf="@+id/actionbar"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent">

        <ImageButton
            android:id="@+id/ivPersonPic"
            android:layout_width="40dp"
            android:layout_height="40dp"
            android:background="@null" />

    </androidx.cardview.widget.CardView>

    <TextView
        android:id="@+id/username"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginStart="16dp"
        android:fontFamily="@font/assistant_bold"
        android:textColor="@color/colorLightPurple"
        android:textSize="18sp"
        app:layout_constraintBottom_toBottomOf="@+id/actionbar"
        app:layout_constraintStart_toEndOf="@+id/imagecard"
        app:layout_constraintTop_toTopOf="parent" />

    <androidx.recyclerview.widget.RecyclerView
        android:id="@+id/rv_Messages"
        android:layout_width="0dp"
        android:layout_height="0dp"
        android:layout_marginTop="8dp"
        app:layout_constraintBottom_toTopOf="@+id/constraint2"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/v_Line"/>

    <androidx.constraintlayout.widget.ConstraintLayout
        android:id="@+id/constraint2"
        android:layout_width="match_parent"
        android:layout_height="0dp"
        app:layout_constraintBottom_toTopOf="@+id/bottom_navigation"
        app:layout_constraintHeight_percent="0.1">

        <EditText
            android:id="@+id/et_Message"
            android:layout_width="0dp"
            android:layout_height="match_parent"
            android:layout_marginStart="12dp"
            android:layout_marginTop="8dp"
            android:layout_marginBottom="8dp"
            android:background="@drawable/et_rounded"
            android:fontFamily="@font/assistant"
            android:gravity="center_vertical"
            android:hint="@string/ActivityChat_Type"
            android:inputType="textMultiLine|textPersonName"
            android:paddingEnd="32dp"
            android:paddingStart="32dp"
            android:textSize="16sp"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintWidth_percent="0.85" />

        <ImageButton
            android:id="@+id/ib_Send"
            style="?android:borderlessButtonStyle"
            android:layout_width="0dp"
            android:layout_height="match_parent"
            android:layout_marginTop="8dp"
            android:layout_marginEnd="8dp"
            android:layout_marginBottom="8dp"
            android:adjustViewBounds="true"
            android:src="@drawable/ic_chats_send"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintWidth_percent="0.1" />

    </androidx.constraintlayout.widget.ConstraintLayout>

    <com.google.android.material.bottomnavigation.BottomNavigationView
        android:id="@+id/bottom_navigation"
        android:layout_width="0dp"
        android:layout_height="0dp"
        app:itemBackground="@color/colorWhite"
        app:itemIconTint="@drawable/btm_nav"
        app:itemTextColor="@drawable/btm_nav"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHeight_percent="0.08"
        app:layout_constraintStart_toStartOf="parent"
        app:menu="@menu/menu_btm_nav" />

</androidx.constraintlayout.widget.ConstraintLayout>

Answer 1

将您的基本布局包装在ScrollView中，将hight设置为match_parent并将fillViewport设置为true：

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

和清单中：

<activity
    android:name=".YourActivity"
    android:windowSoftInputMode="stateAlwaysHidden|adjustResize" />

将其用作第二种解决方案，在这里我检查键盘出现后布局是否没有完全显示，在这种情况下，将视图滚动200像素。该代码也有一些注释。

import android.content.res.Resources;
import android.graphics.Rect;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.view.ViewTreeObserver;
import android.widget.EditText;
import android.widget.ScrollView;

public class MainActivity extends AppCompatActivity {

    private ScrollView sView;
    private int heightDiff;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);


        sView = findViewById(R.id.scrollView);
        //Here we get the height of soft keyboard by observing changes of the scrollView's height.
        sView.getViewTreeObserver().addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
            public void onGlobalLayout() {
                heightDiff = sView.getRootView().getHeight() - sView.getHeight();
            }
        });


        final EditText editText = findViewById(R.id.et_Message);
        editText.setOnFocusChangeListener(new View.OnFocusChangeListener() {
            @Override
            public void onFocusChange(View v, boolean hasFocus) {
                if (!isVisibleWhileSoftKeyboardShowing(editText) && hasFocus) {
                    sView.postDelayed(new Runnable() {
                        @Override
                        public void run() {
                            sView.smoothScrollBy(0, 200);
                        }
                    }, 500);
                }

            }
        });
    }

    /**
     * check if a view is currently visible in the screen or not
     *
     * @param view
     * @return
     */
    public boolean isVisibleWhileSoftKeyboardShowing(final View view) {
        if (view == null) {
            return false;
        }
        if (!view.isShown()) {
            return false;
        }
        final Rect actualPosition = new Rect();
        view.getGlobalVisibleRect(actualPosition);
        final Rect screen = new Rect(0, 0, getScreenWidth(), getScreenHeight() - heightDiff);
        return actualPosition.intersect(screen);
    }


    /**
     * to get screen width
     *
     * @return
     */
    public static int getScreenWidth() {
        return Resources.getSystem().getDisplayMetrics().widthPixels;
    }

    /**
     * to get screen height
     *
     * @return
     */
    public static int getScreenHeight() {
        return Resources.getSystem().getDisplayMetrics().heightPixels;
    }
}