Detect soft input visibility and height when using fullscreen mode

Question

I've read multiple posts of this issue and the solution was to use OnGlobalLayoutListener. Problem here is that my application has declared following in manifest:

android:theme="@android:style/Theme.NoTitleBar.Fullscreen"

So the inputmode adjust doesn't work and I cant use OnGlobalLayoutListener

How to get the event that soft input is visible/gone, and I would also need to get the height of input as well to adjust my current layout bottomMargin.

Thanks.

Answer 1

I don't know how you use OnGlobalLayoutListener but it works fine in my code below:

        final View activityRootView = findViewById(R.id.container);
        final ViewTreeObserver observer = activityRootView
                .getViewTreeObserver();
        observer.addOnGlobalLayoutListener(new OnGlobalLayoutListener() {
            @Override
            public void onGlobalLayout() {

                Rect r = new Rect();
                // r will be populated with the coordinates of your view
                // that area still visible.
                activityRootView.getWindowVisibleDisplayFrame(r);
                int heightDiff = activityRootView.getRootView().getHeight()
                        - (r.bottom - r.top);
                Toast.makeText(TestActivity.this, String.valueOf(heightDiff),
                        Toast.LENGTH_SHORT).show();

            }
        });

THe above code is in onResume() of my TestActivity with the theme @android:style/Theme.NoTitleBar.Fullscreen

layout file for the view:

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/container"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >

    <EditText
        android:id="@+id/textview"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" />

    <Button
        android:id="@+id/button"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="aaa" />

</LinearLayout>

The activity config in menifest:

<activity
    android:name=".ui.activity.TestActivity"
    android:configChanges="orientation|keyboardHidden|screenSize"
    android:label="@string/app_name"
    android:theme="@android:style/Theme.NoTitleBar.Fullscreen" >
    <intent-filter>
        <action android:name="android.intent.action.MAIN" />
        <category android:name="android.intent.category.LAUNCHER" />
    </intent-filter>
</activity>

Answer 2

I use this for detecting visibilty of softInput. Try this :

public boolean isKeyBoardVisible;
    int previousHeightDiffrence = 0;

    public void checkKeyboardHeight(final View parentLayout) {

        parentLayout.getViewTreeObserver().addOnGlobalLayoutListener(
                new ViewTreeObserver.OnGlobalLayoutListener() {

                    @Override
                    public void onGlobalLayout() {

                        Rect r = new Rect();
                        parentLayout.getWindowVisibleDisplayFrame(r);

                        int screenHeight = parentLayout.getRootView()
                                .getHeight();
                        int heightDifference = screenHeight - (r.bottom);

                        if (previousHeightDiffrence - heightDifference > 50) {

                            // Keyboard is not visible
                        }
                        if (previousHeightDiffrence - heightDifference < -50) {

                            // Keyboard Visible
                        }

                        previousHeightDiffrence = heightDifference;
                        if (heightDifference > 100) {

                            isKeyBoardVisible = true;

                        } else {

                            isKeyBoardVisible = false;

                        }

                    }
                });

    } 

here parentLayout is top most layout of my activity and heightDifference is height of my keyboard if keyboard is Visible.....

Answer 3

Try this:

Layout:

<RelativeLayoutxmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >

    <MyView
        android:layout_width="fill_parent"
        android:layout_height="fill_parent" />
</RelativeLayout>

Then Implement the MyView

public class MyView extends View
{
     public static int ScreenHeight;

     @Override
     public function onDraw(Canvas canvas){
          if(ScreenHeight != canvas.getHeight()){
              // this is your event
          } 
          ScreenHeight = canvas.getHeight();

     }
}

Now ScreenHeight is what you are looking for.