How to reduce TextView line spacing

I am trying to reduce the line spacing in a TextView by setting a negative 'add' to TextView.setLineSpacing(). It works well except that the bottom line get truncated.

Main layout

<TextView
    android:id="@+id/text_view"
    android:padding="dp"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_centerHorizontal="true"
    android:layout_centerVertical="true"
    tools:context=".MainActivity" />

Main activity: (notice the

package com.font_test;

import android.app.Activity;
import android.graphics.Typeface;
import android.os.Bundle;
import android.widget.TextView;

public class MainActivity extends Activity {

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

        final Typeface typeface = Typeface.createFromAsset(getAssets(), "fonts/custom_fonts.ttf");
        final TextView tv = (TextView) findViewById(R.id.text_view);
        tv.setTypeface(typeface);
        tv.setTextSize(60);
        tv.setLineSpacing(-30f, 1f);  // *** -30 to reduce line spacing
        tv.setBackgroundColor(0x280000ff);
        tv.setText("gggkiiikkk" + "\n" + "gikgikgik" + "\n" + "kigkigkig");
    }
}

This results in truncation at the bottom of the view (notice the 'g' at the bottom line):

It seems that the problem is related to incorrect layout measurement. If I set the TextView to

 android:layout_height="fill_parent"

It does render properly:

Any idea how to fix it? I don't mind to have ugly workarounds if it helps. I also have access to FontForge and I can modify the font file if needed.