Can't change the confirmBtnText in Android.

[wuwenyuan111]

Issue

I can't change the confirmBtnText in Android.

Code

<DatePicker
                            style={{width: 200}}
                            date={this.state.date}
                            mode="date"
                            placeholder="select date"
                            format="YYYY-MM-DD"
                            minDate="2016-05-01"
                            maxDate="2016-06-01"
                            confirmBtnText="Confirm"
                            cancelBtnText="Cancel"
                            customStyles={{
                                dateIcon: {
                                    position: 'absolute',
                                    left: 0,
                                    top: 4,
                                    marginLeft: 0
                                },
                                dateInput: {
                                    marginLeft: 36
                                },
                                // ... You can check the source to find the other keys.
                            }}
                            onDateChange={(date) => {
                                this.setState({date: date})
                            }}
                        />

![image](https://user-images.githubusercontent.com/30981363/58526920-4c696880-8203-11e9-8060-8af8629fa9e8.png)

### Environment

1. `react-native -v`: 0.59.3
2. `node -v`: 10.15.1
3. `npm -v`: 6.4.1
4. `yarn --version`<!-- (if you use Yarn) -->: 1.13.0
5. `target platform`: Android
6. `operating system`: win 10
7.  `react-native-datepicker`: 1.7.2

[jonathanatn]

It's specified in the doc, why.

confirmBtnText: Specify the text of confirm btn in ios.

I assume you can't edit the button of the Android dialog

[wuwenyuan111]

All right