React Native オープンソースの時刻と日付ピッカー コンポーネントの詳細な説明

npm install react-native-datetime --save

...
include ':react-native-datetime'
project(':react-native-datetime').projectDir = new File(rootProject.projectDir, '../node_modules/react-native-datetime/android')

...
dependencies {
  ...
  compile project(':react-native-datetime')
}

import com.keyee.datetime.*; // <--- import
 
public class MainActivity extends ReactActivity {
 ......
 
 /**
  * A list of packages used by the app. If the app uses additional views
  * or modules besides the default ones, add more packages here.
  */
  @Override
  protected List<ReactPackage> getPackages() {
   return Arrays.<ReactPackage>asList(
    new RCTDateTimePickerPackage(this), // <------ add here
    new MainReactPackage());
  }
}

import com.keyee.datetime.*; // <--- import
 
public class MainActivity extends Activity implements DefaultHardwareBackBtnHandler {
 ......
 @Override
 protected void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  mReactRootView = new ReactRootView(this);
 
  mReactInstanceManager = ReactInstanceManager.builder()
   .setApplication(getApplication())
   .setBundleAssetName("index.android.bundle")
   .setJSMainModuleName("index.android")
   .addPackage(new MainReactPackage())
   .addPackage(new RCTDateTimePickerPackage(this))       // <------ add here
   .setUseDeveloperSupport(BuildConfig.DEBUG)
   .setInitialLifecycleState(LifecycleState.RESUMED)
   .build();
 
  mReactRootView.startReactApplication(mReactInstanceManager, "ExampleRN", null);
 
  setContentView(mReactRootView);
 }
 
 ......
}

<DateTimePicker ref={(picker)=>{this.picker=picker}}/>
...
this.picker.showDatePicker(...)
this.picker.showTimePicker(...)
this.picker.showDateTimePicker(...)