Android How to adjust layout in Full Screen Mode when softkeyboard is visible

Question

I have researched a lot to adjust the layout when softkeyboard is active and I have successfully implemented it but the problem comes when I use android:theme=\"@andro

Answer 1

I'm currently using this approach and it works like a charm. The trick is we get keyboard height from different methods on 21 above and below and then use it as the bottom padding of our root view in our activity. I assumed your layout does not need a top padding (goes below status bar) but in case you do, inform me to update my answer.

MainActivity.java

public class MainActivity extends AppCompatActivity {
    @Override
    protected void onCreate(final Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        RelativeLayout mainLayout = findViewById(R.id.main_layout);

        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
            ViewCompat.setOnApplyWindowInsetsListener(mainLayout , new OnApplyWindowInsetsListener() {
                @Override
                public WindowInsetsCompat onApplyWindowInsets(View v, WindowInsetsCompat insets) {
                    v.setPadding(0, 0, 0, insets.getSystemWindowInsetBottom());
                    return insets;
                }
            });
        } else {
            View decorView = getWindow().getDecorView();
            final View contentView = mainLayout;
            decorView.getViewTreeObserver().addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
                @Override
                public void onGlobalLayout() {
                    Rect r = new Rect();
                    //r will be populated with the coordinates of your view that area still visible.
                    decorView.getWindowVisibleDisplayFrame(r);

                    //get screen height and calculate the difference with the useable area from the r
                    int height = decorView.getContext().getResources().getDisplayMetrics().heightPixels;
                    int diff = height - r.bottom;

                    //if it could be a keyboard add the padding to the view
                    if (diff != 0) {
                        // if the use-able screen height differs from the total screen height we assume that it shows a keyboard now
                        //check if the padding is 0 (if yes set the padding for the keyboard)
                        if (contentView.getPaddingBottom() != diff) {
                            //set the padding of the contentView for the keyboard
                            contentView.setPadding(0, 0, 0, diff);
                        }
                    } else {
                        //check if the padding is != 0 (if yes reset the padding)
                        if (contentView.getPaddingBottom() != 0) {
                            //reset the padding of the contentView
                            contentView.setPadding(0, 0, 0, 0);
                        }
                    }
                }
            });
        }
    }
...
}

Don't forget to address your root view with an id:

activity_main.xml

Hope it helps someone.