Question: I have a very long data and I want to match and fetch a certain line that contains a string and unknown decimal value to that data.

The match that I want looks like this:

```
 "totalProfitToday": 0.0

```

where 0.0 is any decimal number. Any help? thanks.

Answer: 
Just add a view on top|left corner of root view and on click that view just open navigation drawer

```java
DrawerLayout drawer = findViewById(R.id.drawer_layout);

if (!drawer.isDrawerOpen(GravityCompat.START)) {
    drawer.openDrawer(GravityCompat.START);
} else {
    drawer.closeDrawer(GravityCompat.START);
}

```
```
<?xml version="1.0" encoding="UTF-8"?>
<rotate xmlns:android="http://schemas.android.com/apk/res/android"
    android:duration="1600"
    android:fromDegrees="0"
    android:interpolator="@android:anim/linear_interpolator"
    android:pivotX="50%"
    android:pivotY="50%"
    android:repeatCount="1"
    android:toDegrees="360" />

```

Uber has transparent actionBar or toolbar... you can achieve that by both ways

* Keeping your icon on the **transparent actionbar/toolbar** ... go through this link .. [Material Design Transparent ActionBar](https://stackoverflow.com/questions/26558705/material-design-transparent-actionbar)
* Without using actionbar just placing the icon and opening the drawer at its click.. and **handling the rotating animation at click and then changing the hamburger icon to back button** at the animation end.. rotate anim like this at onClick of icon..