Android React native自定义本机组件所需的未知模块
我正在尝试为ReactNative实现自定义本机组件。根据文档,我创建了所有组件,如下所示。但我仍然得到了未知模块“MyCustomToast”所需的错误信息。请帮我解决这个问题 SampleToast.java:-Android React native自定义本机组件所需的未知模块,android,reactjs,react-native,Android,Reactjs,React Native,我正在尝试为ReactNative实现自定义本机组件。根据文档,我创建了所有组件,如下所示。但我仍然得到了未知模块“MyCustomToast”所需的错误信息。请帮我解决这个问题 SampleToast.java:- public class SampleToast extends ReactContextBaseJavaModule { public SampleToast(ReactApplicationContext reactContext) { super(reactCon
public class SampleToast extends ReactContextBaseJavaModule {
public SampleToast(ReactApplicationContext reactContext) {
super(reactContext);
}
@Override
public String getName() {
return "MyCustomToast";
}
@ReactMethod
public void showToast(String message) {
Toast.makeText(getReactApplicationContext(), message, Toast.LENGTH_LONG).show();
}
public class MakeReactPackage implements ReactPackage {
@Override
public List<NativeModule> createNativeModules(ReactApplicationContext reactContext) {
List<NativeModule> modules = new ArrayList<>();
modules.add(new SampleToast(reactContext));
return modules;
}
@Override
public List<Class<? extends JavaScriptModule>> createJSModules() {
return Collections.emptyList();
}
@Override
public List<ViewManager> createViewManagers(ReactApplicationContext reactContext) {
return Arrays.asList();
}
public class MainActivity extends Activity implements DefaultHardwareBackBtnHandler {
private ReactInstanceManager mReactInstanceManager;
private ReactRootView mReactRootView;
@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 MakeReactPackage())
.setUseDeveloperSupport(BuildConfig.DEBUG)
.setInitialLifecycleState(LifecycleState.RESUMED)
.build();
mReactRootView.startReactApplication(mReactInstanceManager, "HelloWorldBha", null);
setContentView(mReactRootView);
}
@Override
public boolean onKeyUp(int keyCode, KeyEvent event) {
if (keyCode == KeyEvent.KEYCODE_MENU && mReactInstanceManager != null) {
mReactInstanceManager.showDevOptionsDialog();
return true;
}
return super.onKeyUp(keyCode, event);
}
@Override
public void onBackPressed() {
if (mReactInstanceManager != null) {
mReactInstanceManager.onBackPressed();
} else {
super.onBackPressed();
}
}
@Override
public void invokeDefaultOnBackPressed() {
super.onBackPressed();
}
@Override
protected void onPause() {
super.onPause();
if (mReactInstanceManager != null) {
mReactInstanceManager.onPause();
}
}
@Override
protected void onResume() {
super.onResume();
if (mReactInstanceManager != null) {
mReactInstanceManager.onResume(this);
}
}}
MyCustomToast:require('MyCustomToast'),
/**
* Sample React Native App
* https://github.com/facebook/react-native
*/
'use strict';
var React = require('react-native');
var toastMessage = require('SampleToast')
var {
AppRegistry,
StyleSheet,
Text,
View,
NativeModules
} = React;
var HelloWorldBha = React.createClass({
render: function () {
return (
<View style={styles.container}>
<Text style={styles.welcome}>
Welcome to React Native!
</Text>
<Text style={styles.instructions}>
To get started, edit index.android.js
</Text>
<Text style={styles.instructions}>
Shake or press menu button for dev menu
</Text>
toastMessage.show('Bharath Kumar');
</View>
);
}
});
var styles = StyleSheet.create({
container: {
flex: 1,
justifyContent: 'center',
alignItems: 'center',
backgroundColor: '#F5FCFF',
},
welcome: {
fontSize: 20,
textAlign: 'center',
margin: 10,
},
instructions: {
textAlign: 'center',
color: '#333333',
marginBottom: 5,
},
});
AppRegistry.registerComponent('HelloWorldBha', () => HelloWorldBha);
}
MakeReactPackage.java:-
public class SampleToast extends ReactContextBaseJavaModule {
public SampleToast(ReactApplicationContext reactContext) {
super(reactContext);
}
@Override
public String getName() {
return "MyCustomToast";
}
@ReactMethod
public void showToast(String message) {
Toast.makeText(getReactApplicationContext(), message, Toast.LENGTH_LONG).show();
}
public class MakeReactPackage implements ReactPackage {
@Override
public List<NativeModule> createNativeModules(ReactApplicationContext reactContext) {
List<NativeModule> modules = new ArrayList<>();
modules.add(new SampleToast(reactContext));
return modules;
}
@Override
public List<Class<? extends JavaScriptModule>> createJSModules() {
return Collections.emptyList();
}
@Override
public List<ViewManager> createViewManagers(ReactApplicationContext reactContext) {
return Arrays.asList();
}
public class MainActivity extends Activity implements DefaultHardwareBackBtnHandler {
private ReactInstanceManager mReactInstanceManager;
private ReactRootView mReactRootView;
@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 MakeReactPackage())
.setUseDeveloperSupport(BuildConfig.DEBUG)
.setInitialLifecycleState(LifecycleState.RESUMED)
.build();
mReactRootView.startReactApplication(mReactInstanceManager, "HelloWorldBha", null);
setContentView(mReactRootView);
}
@Override
public boolean onKeyUp(int keyCode, KeyEvent event) {
if (keyCode == KeyEvent.KEYCODE_MENU && mReactInstanceManager != null) {
mReactInstanceManager.showDevOptionsDialog();
return true;
}
return super.onKeyUp(keyCode, event);
}
@Override
public void onBackPressed() {
if (mReactInstanceManager != null) {
mReactInstanceManager.onBackPressed();
} else {
super.onBackPressed();
}
}
@Override
public void invokeDefaultOnBackPressed() {
super.onBackPressed();
}
@Override
protected void onPause() {
super.onPause();
if (mReactInstanceManager != null) {
mReactInstanceManager.onPause();
}
}
@Override
protected void onResume() {
super.onResume();
if (mReactInstanceManager != null) {
mReactInstanceManager.onResume(this);
}
}}
MyCustomToast:require('MyCustomToast'),
/**
* Sample React Native App
* https://github.com/facebook/react-native
*/
'use strict';
var React = require('react-native');
var toastMessage = require('SampleToast')
var {
AppRegistry,
StyleSheet,
Text,
View,
NativeModules
} = React;
var HelloWorldBha = React.createClass({
render: function () {
return (
<View style={styles.container}>
<Text style={styles.welcome}>
Welcome to React Native!
</Text>
<Text style={styles.instructions}>
To get started, edit index.android.js
</Text>
<Text style={styles.instructions}>
Shake or press menu button for dev menu
</Text>
toastMessage.show('Bharath Kumar');
</View>
);
}
});
var styles = StyleSheet.create({
container: {
flex: 1,
justifyContent: 'center',
alignItems: 'center',
backgroundColor: '#F5FCFF',
},
welcome: {
fontSize: 20,
textAlign: 'center',
margin: 10,
},
instructions: {
textAlign: 'center',
color: '#333333',
marginBottom: 5,
},
});
AppRegistry.registerComponent('HelloWorldBha', () => HelloWorldBha);
还有JS
react native.js:-
public class SampleToast extends ReactContextBaseJavaModule {
public SampleToast(ReactApplicationContext reactContext) {
super(reactContext);
}
@Override
public String getName() {
return "MyCustomToast";
}
@ReactMethod
public void showToast(String message) {
Toast.makeText(getReactApplicationContext(), message, Toast.LENGTH_LONG).show();
}
public class MakeReactPackage implements ReactPackage {
@Override
public List<NativeModule> createNativeModules(ReactApplicationContext reactContext) {
List<NativeModule> modules = new ArrayList<>();
modules.add(new SampleToast(reactContext));
return modules;
}
@Override
public List<Class<? extends JavaScriptModule>> createJSModules() {
return Collections.emptyList();
}
@Override
public List<ViewManager> createViewManagers(ReactApplicationContext reactContext) {
return Arrays.asList();
}
public class MainActivity extends Activity implements DefaultHardwareBackBtnHandler {
private ReactInstanceManager mReactInstanceManager;
private ReactRootView mReactRootView;
@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 MakeReactPackage())
.setUseDeveloperSupport(BuildConfig.DEBUG)
.setInitialLifecycleState(LifecycleState.RESUMED)
.build();
mReactRootView.startReactApplication(mReactInstanceManager, "HelloWorldBha", null);
setContentView(mReactRootView);
}
@Override
public boolean onKeyUp(int keyCode, KeyEvent event) {
if (keyCode == KeyEvent.KEYCODE_MENU && mReactInstanceManager != null) {
mReactInstanceManager.showDevOptionsDialog();
return true;
}
return super.onKeyUp(keyCode, event);
}
@Override
public void onBackPressed() {
if (mReactInstanceManager != null) {
mReactInstanceManager.onBackPressed();
} else {
super.onBackPressed();
}
}
@Override
public void invokeDefaultOnBackPressed() {
super.onBackPressed();
}
@Override
protected void onPause() {
super.onPause();
if (mReactInstanceManager != null) {
mReactInstanceManager.onPause();
}
}
@Override
protected void onResume() {
super.onResume();
if (mReactInstanceManager != null) {
mReactInstanceManager.onResume(this);
}
}}
MyCustomToast:require('MyCustomToast'),
/**
* Sample React Native App
* https://github.com/facebook/react-native
*/
'use strict';
var React = require('react-native');
var toastMessage = require('SampleToast')
var {
AppRegistry,
StyleSheet,
Text,
View,
NativeModules
} = React;
var HelloWorldBha = React.createClass({
render: function () {
return (
<View style={styles.container}>
<Text style={styles.welcome}>
Welcome to React Native!
</Text>
<Text style={styles.instructions}>
To get started, edit index.android.js
</Text>
<Text style={styles.instructions}>
Shake or press menu button for dev menu
</Text>
toastMessage.show('Bharath Kumar');
</View>
);
}
});
var styles = StyleSheet.create({
container: {
flex: 1,
justifyContent: 'center',
alignItems: 'center',
backgroundColor: '#F5FCFF',
},
welcome: {
fontSize: 20,
textAlign: 'center',
margin: 10,
},
instructions: {
textAlign: 'center',
color: '#333333',
marginBottom: 5,
},
});
AppRegistry.registerComponent('HelloWorldBha', () => HelloWorldBha);
SampleToast.js:-
'use strict';
/**
* This exposes the native ToastAndroid module as a JS module. This has a function 'show'
* which takes the following parameters:
*
* 1. String message: A string with the text to toast
* 2. int duration: The duration of the toast. May be ToastAndroid.SHORT or ToastAndroid.LONG
*/
var { NativeModules } = require('react-native');
module.exports = NativeModules.MyCustomToast;
Index.android.js:-
public class SampleToast extends ReactContextBaseJavaModule {
public SampleToast(ReactApplicationContext reactContext) {
super(reactContext);
}
@Override
public String getName() {
return "MyCustomToast";
}
@ReactMethod
public void showToast(String message) {
Toast.makeText(getReactApplicationContext(), message, Toast.LENGTH_LONG).show();
}
public class MakeReactPackage implements ReactPackage {
@Override
public List<NativeModule> createNativeModules(ReactApplicationContext reactContext) {
List<NativeModule> modules = new ArrayList<>();
modules.add(new SampleToast(reactContext));
return modules;
}
@Override
public List<Class<? extends JavaScriptModule>> createJSModules() {
return Collections.emptyList();
}
@Override
public List<ViewManager> createViewManagers(ReactApplicationContext reactContext) {
return Arrays.asList();
}
public class MainActivity extends Activity implements DefaultHardwareBackBtnHandler {
private ReactInstanceManager mReactInstanceManager;
private ReactRootView mReactRootView;
@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 MakeReactPackage())
.setUseDeveloperSupport(BuildConfig.DEBUG)
.setInitialLifecycleState(LifecycleState.RESUMED)
.build();
mReactRootView.startReactApplication(mReactInstanceManager, "HelloWorldBha", null);
setContentView(mReactRootView);
}
@Override
public boolean onKeyUp(int keyCode, KeyEvent event) {
if (keyCode == KeyEvent.KEYCODE_MENU && mReactInstanceManager != null) {
mReactInstanceManager.showDevOptionsDialog();
return true;
}
return super.onKeyUp(keyCode, event);
}
@Override
public void onBackPressed() {
if (mReactInstanceManager != null) {
mReactInstanceManager.onBackPressed();
} else {
super.onBackPressed();
}
}
@Override
public void invokeDefaultOnBackPressed() {
super.onBackPressed();
}
@Override
protected void onPause() {
super.onPause();
if (mReactInstanceManager != null) {
mReactInstanceManager.onPause();
}
}
@Override
protected void onResume() {
super.onResume();
if (mReactInstanceManager != null) {
mReactInstanceManager.onResume(this);
}
}}
MyCustomToast:require('MyCustomToast'),
/**
* Sample React Native App
* https://github.com/facebook/react-native
*/
'use strict';
var React = require('react-native');
var toastMessage = require('SampleToast')
var {
AppRegistry,
StyleSheet,
Text,
View,
NativeModules
} = React;
var HelloWorldBha = React.createClass({
render: function () {
return (
<View style={styles.container}>
<Text style={styles.welcome}>
Welcome to React Native!
</Text>
<Text style={styles.instructions}>
To get started, edit index.android.js
</Text>
<Text style={styles.instructions}>
Shake or press menu button for dev menu
</Text>
toastMessage.show('Bharath Kumar');
</View>
);
}
});
var styles = StyleSheet.create({
container: {
flex: 1,
justifyContent: 'center',
alignItems: 'center',
backgroundColor: '#F5FCFF',
},
welcome: {
fontSize: 20,
textAlign: 'center',
margin: 10,
},
instructions: {
textAlign: 'center',
color: '#333333',
marginBottom: 5,
},
});
AppRegistry.registerComponent('HelloWorldBha', () => HelloWorldBha);
/**
*示例React本机应用程序
* https://github.com/facebook/react-native
*/
"严格使用",;
var React=require('React-native');
var toastMessage=require('SampleToast')
变量{
评估学,
样式表,
文本,
看法
本机模块
}=反应;
var HelloWorldBha=React.createClass({
渲染:函数(){
返回(
欢迎来到这里!
要开始,请编辑index.android.js
摇动或按下开发菜单的菜单按钮
toastMessage.show('Bharath Kumar');
);
}
});
var styles=StyleSheet.create({
容器:{
弹性:1,
为内容辩护:“中心”,
对齐项目:“居中”,
背景颜色:“#F5FCFF”,
},
欢迎:{
尺寸:20,
textAlign:'中心',
差额:10,
},
说明:{
textAlign:'中心',
颜色:'#333333',
marginBottom:5,
},
});
AppRegistry.registerComponent('HelloWorldBha',()=>HelloWorldBha);
在SampleToast.js中使用ProvideModule注释。因此SampleToast.js变成:
/**
* @providesModule SampleToast
*/
'use strict';
/**
* This exposes the native ToastAndroid module as a JS module. This has a function 'show'
* which takes the following parameters:
*
* 1. String message: A string with the text to toast
* 2. int duration: The duration of the toast. May be ToastAndroid.SHORT or ToastAndroid.LONG
*/
var { NativeModules } = require('react-native');
module.exports = NativeModules.MyCustomToast;
或者,如果在Index.android.js中使用require('SampleToast'),则需要给出相对路径。因此,如果SampleToast.js和Index.android.js位于您需要的同一目录中
var toastMessage = require('./SampleToast');
就个人而言,我更喜欢第一个选项。尝试从react-native.js中删除“MyCustomToast:require('MyCustomToast')”。这是不必要的。