How to set the dialog in full screen above the bottom tab bar?

Question

I have the screen where I need to open the dialog in full screen but it should be above the bottom tab bar.

The code used to make the dialog appear in whole screen is as follows:

WindowManager.LayoutParams lp = new WindowManager.LayoutParams();
lp.copyFrom(dialog.getWindow().getAttributes());
lp.width = WindowManager.LayoutParams.MATCH_PARENT;
lp.height = WindowManager.LayoutParams.MATCH_PARENT;
dialog.show();
dialog.getWindow().setAttributes(lp);

But this code provides me the dialog in the whole screen hiding the bottom tab bar. Can please anyone help me on this?

As shown in cropped image, I want dialog above the bottom tab bar in full screen.

Answer 1

Try this,

In onCreate use [this will give you screen height]:-

    Display display = getWindowManager().getDefaultDisplay();
    Point size = new Point();
    display.getSize(size);
    int screenHeight = size.y;

In onResume use [this will give you tab bar height]

 ViewTreeObserver observer = tabBar.getViewTreeObserver();
        observer.addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
            @Override
            public void onGlobalLayout() {
                int tabBarHeight= tabBar.getHeight();
            tabBar.getViewTreeObserver().removeGlobalOnLayoutListener(
                        this);
            }
        });

Now for our dialog height use [create class variable for screenHeight and tabBarHeight]:-

WindowManager.LayoutParams lp = new WindowManager.LayoutParams();
lp.copyFrom(dialog.getWindow().getAttributes());
lp.width = WindowManager.LayoutParams.MATCH_PARENT;
lp.height = screenHeight -tabBarHeight;
dialog.show();
dialog.getWindow().setAttributes(lp);

Answer 2

This is easy if you want total control over a Dialog just create a custom one. You will need a XML file and a method in what ever Activity you want to use the Custom Dialog Here is the code for the XML and the method below. New XML file RIGHT click res -> New -> XML (near the bottom)-> Layout XML file

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/activity_main"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@color/color_lightGray"
tools:context="com.example.dwight.pwkeeper.MainActivity">

<android.support.v7.widget.Toolbar
    android:id="@+id/toolbar"
    android:layout_width="match_parent"
    android:layout_height="84dp"
    android:background="@color/color_darkGray"
    android:minHeight="?attr/actionBarSize">

    <ImageView
        android:id="@+id/imageTB"
        android:layout_width="70dp"
        android:layout_height="wrap_content"
        android:paddingBottom="2dp"
        android:paddingLeft="2dp"
        android:paddingRight="2dp"
        android:paddingTop="4dp"
        android:src="@drawable/lockgold" />

    <TextView
        android:text="@string/app_name"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignBottom="@+id/toolbar"
        android:layout_alignParentStart="true"
        android:layout_marginStart="30dp"
        android:layout_marginBottom="20dp"
        android:id="@+id/tvMA"
        android:textStyle="bold"
        android:textColor="@color/color_White"
        android:textSize="28sp" />

</android.support.v7.widget.Toolbar>

<RelativeLayout
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:layout_alignParentStart="true"
    android:layout_below="@+id/toolbar"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    android:id="@+id/RLscreen">

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Password"
        android:layout_marginLeft="100dp"
        android:layout_marginTop="60dp"
        android:id="@+id/tvPW"
        android:textColor="@android:color/black"
        android:textStyle="bold"
        android:textSize="26sp"/>

    <EditText
        android:id="@+id/etPW"
        android:layout_width="260dp"
        android:layout_height="wrap_content"
        android:layout_marginLeft="220dp"
        android:layout_marginTop="50dp"
        android:backgroundTint="@color/color_Black"
        android:cursorVisible="true"
        android:ems="10"
        android:gravity="bottom"
        android:inputType="text"
        android:textColor="@android:color/black"
        android:textSize="26sp"
        android:textStyle="bold" />

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Confirm Password"
        android:layout_marginTop="140dp"
        android:id="@+id/tvCPW"
        android:textColor="@android:color/black"
        android:textStyle="bold"
        android:textSize="26sp"/>

    <EditText
        android:id="@+id/etCPW"
        android:layout_width="260dp"
        android:layout_height="wrap_content"
        android:layout_marginLeft="220dp"
        android:layout_marginTop="130dp"
        android:backgroundTint="@color/color_Black"
        android:ems="10"
        android:inputType="text"
        android:textColor="@android:color/black"
        android:textSize="26sp"
        android:textStyle="bold" />

    <Button
        android:id="@+id/btnSave"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginLeft="220dp"
        android:layout_marginTop="220dp"
        android:text="SAVE"
        android:textColor="@color/color_lightGray"
        android:textSize="30sp"
        android:textStyle="bold" />

    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginLeft="220dp"
        android:layout_marginTop="220dp"
        android:id="@+id/btnEnter"
        android:textColor="@color/color_lightGray"
        android:textStyle="bold"
        android:textSize="30sp"
        android:visibility="invisible"
        android:onClick="onEnter"
        android:text="ENTER" />

    <ImageView
        android:id="@+id/imageView"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_alignParentBottom="false"
        android:layout_alignParentStart="false"
        android:layout_marginTop="350dp"
        android:src="@drawable/pwkeyb600" />

</RelativeLayout>

    private void doCustom(){
    /* This method uses the custom_dialog.xml file created for greater control over
       the styling of the Custom Alert Dialog for various screen sizes and to be
       able to set the text size of the dialog message text
     */

    final Dialog openDialog = new Dialog(context);
    openDialog.setContentView(R.layout.custom_dialog);
    Button btnYES = (Button)openDialog.findViewById(R.id.btnYES);
    Button btnNO = (Button)openDialog.findViewById(R.id.btnNO);

    // if YES delete Master Password from TABLE_MPW
    btnYES.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            // Write your code here to invoke YES event
            db = helper.getReadableDatabase();

            String q = "SELECT * FROM masterPW";
            Cursor cursor = db.rawQuery(q,null);
            // Above query gets TABLE_PW data from Col_IDI
            // TABLE_PW will only ever have one row of data

            int rowID = 99;
            if(cursor.moveToFirst()){
                rowID = cursor.getInt(cursor.getColumnIndex(Col_IDI));
                str = cursor.getString(cursor.getColumnIndex(Col_MPW));
            }
            cursor.close();

            // Line of code below WORKS deletes entire TABLE <=====
            // Not a recommended way to re-set the master password
            // db.delete(TABLE_PW, null, null);

            String num = Integer.toString(rowID);

            db.delete(TABLE_PW, Col_IDI + " = ?", new String[] { num });
            db.close();
            openDialog.dismiss();

            Intent intentYY = new Intent(DetailsActivity.this, MainActivity.class );
            startActivity( intentYY );

            Toast.makeText(getApplicationContext(), "Change the Password", Toast.LENGTH_SHORT).show();
        }
    });

    btnNO.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            openDialog.dismiss();

            Intent intent = new Intent( DetailsActivity.this, ListActivity.class );
            startActivity( intent );

            Toast.makeText(getApplicationContext(), "Password NOT Changed", Toast.LENGTH_SHORT).show();
        }
    });

    openDialog.show();
}