Android: Resize Only Parts of View with Soft Keyboard on Screen

Android: Resize only parts of view with soft keyboard on screen

The full solution involves a few key points

• Use RelativeLayout, so that Views can be setup to overlap one another
• Align the EditText with the bottom of the Windows using android:layout_alignParentBottom="true"
• Use android:windowSoftInputMode="adjustResize" in your manifest, so that the bottom of the Window changes when the keyboard pops up (as you mentioned)
• Put the ImageView inside a ScrollView so that the ImageView can be larger than the Window, and disable scrolling on the ScrollView by using ScrollView#setEnabled(false)

Here is the layout file

<RelativeLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="com.so3.MainActivity">
    <ScrollView
        android:id="@+id/scroll"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content">
        <ImageView
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:adjustViewBounds="true"
            android:src="@drawable/stickfigures"/>
    </ScrollView>
    <EditText
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_alignParentBottom="true"
        android:background="@android:color/holo_blue_bright"
        android:text="Please enter text"
        android:textSize="40sp"
        android:gravity="center_horizontal"/>
</RelativeLayout>

Here is my Activity

package com.so3;

import android.app.Activity;
import android.os.Bundle;
import android.widget.ScrollView;

public class MainActivity extends Activity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        ScrollView sv = (ScrollView)findViewById(R.id.scroll);
        sv.setEnabled(false);
    }
}

My AndroidManifest

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"    package="com.so3" >
    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <activity
            android:name="com.so3.MainActivity"
            android:windowSoftInputMode="adjustResize"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>
</manifest>

Screen shots of my solution

How to adjust layout when soft keyboard appears

Just add

android:windowSoftInputMode="adjustResize"

in your AndroidManifest.xml where you declare this particular activity and this will adjust the layout resize option.

some source code below for layout design

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >

    <TextView
        android:id="@+id/textView1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="20dp"
        android:text="FaceBook"
        android:textAppearance="?android:attr/textAppearanceLarge" />

    <EditText
        android:id="@+id/editText1"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_below="@+id/textView1"
        android:layout_marginTop="30dp"
        android:ems="10"
        android:hint="username" >

        <requestFocus />
    </EditText>

    <EditText
        android:id="@+id/editText2"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_below="@+id/editText1"
        android:layout_marginTop="20dp"
        android:ems="10"
        android:hint="password" />

    <Button
        android:id="@+id/button1"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_below="@+id/editText2"
        android:layout_centerHorizontal="true"
        android:layout_marginLeft="18dp"
        android:layout_marginTop="20dp"
        android:text="Log In" />

    <TextView
        android:id="@+id/textView2"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_alignParentBottom="true"
        android:layout_marginTop="17dp"
        android:gravity="center"
        android:text="Sign up for facebook"
        android:textAppearance="?android:attr/textAppearanceLarge" />

</RelativeLayout>

Adjust layout when soft keyboard is on

Here's a solution that works like the Evernote login screen:

First, define a class that will be your special LinearLayout like this:

public class MyLayout extends LinearLayout {

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

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

private OnSoftKeyboardListener onSoftKeyboardListener;

@Override
protected void onMeasure(final int widthMeasureSpec, final int heightMeasureSpec) {
    if (onSoftKeyboardListener != null) {
        final int newSpec = MeasureSpec.getSize(heightMeasureSpec); 
        final int oldSpec = getMeasuredHeight();
        if (oldSpec > newSpec){
            onSoftKeyboardListener.onShown();
        } else {
            onSoftKeyboardListener.onHidden();
        }
    }
    super.onMeasure(widthMeasureSpec, heightMeasureSpec);
}

public final void setOnSoftKeyboardListener(final OnSoftKeyboardListener listener) {
    this.onSoftKeyboardListener = listener;
}

public interface OnSoftKeyboardListener {
    public void onShown();
    public void onHidden();
}

}

This layout listens to measure changes, and if new measurements are < than the old ones, that means part of the screen is eaten by soft keyboard.

Though, for it to work, in your manifest you need to set android:windowSoftInputMode="adjustResize" so the content will be resized and not just shifted.

And the whole system works as follows:
You have your layout:

<MyLayout id="layout">
  <SomeImage id="image"/>
  <SomeText>
  <SomeInput>
</MyLayout>

It's like evernotes login screen.
Then, in your activity:

((MyLayout)findViewById(R.id.layout)).setOnSoftKeyboardListener(new OnSoftKeyboardListener() {
        @Override
        public void onShown() {
            findViewById(R.id.image).setVisibility(View.GONE);
        }
        @Override
        public void onHidden() {
            findViewById(R.id.image).setVisibility(View.VISIBLE);
        }
    });

Then go to manifest.xml and set

android:windowSoftInputMode="adjustResize"

What will happen, is when soft keyboard is shown, it'll hide the image and will resize the rest of content. (You can actually see how text is resized in Evernote)

Image hide is, of course, one of the many things you can do. But you must be careful, since different layout changes will also call onMeasure.

Of course it's a dirty variant. You need to check for orientation changes, and the right time when actually take the measurements, and maybe some more logic when comparing the new specs with the old ones. But i think this is the only way to do it.

Move layouts up when soft keyboard is shown?

Yes, check out this article on the Android developers' site which describes how the framework handles the soft keyboard appearing.

The android:windowSoftInputMode attribute can be used to specify what happens on a per-activity basis: whether the layout is resized or whether it scrolls etc.

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