react native 原生页面跳转到React页面，react页面回退到原生页面实现。

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
public class TestRNActivity extends AppCompatActivity implements DefaultHardwareBackBtnHandler, PermissionAwareActivity {
private ReactRootView mReactRootView;
private ReactInstanceManager mReactInstanceManager;
private @Nullable
PermissionListener mPermissionListener;
private @Nullable
com.facebook.react.bridge.Callback mPermissionsCallback;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
String filePath = getIntent().getStringExtra("filePath");
initReactRootView(true,filePath);
}
private void initReactRootView(boolean isRelease, String filePath) {
// 发布版加载本地文件，测试架子啊assent目录下文件
File file = new File(filePath);
if (isRelease) {
mReactInstanceManager = ReactInstanceManager.builder()
.setCurrentActivity(this)
.setApplication(getApplication())
.setJSMainModulePath("index.android")
.addPackages(Arrays.<ReactPackage>asList(
new MainReactPackage()
))
//设置监听为当前activity
.setDefaultHardwareBackBtnHandler(this)
.setInitialLifecycleState(LifecycleState.RESUMED)
.setJSBundleFile(filePath)
.build();
} else {//测试模式，加载assent目录下的
mReactInstanceManager = ReactInstanceManager.builder()
.setCurrentActivity(this)
.setApplication(getApplication())
.setJSMainModulePath("index.android")
.addPackages(Arrays.<ReactPackage>asList(
new MainReactPackage()
))
.setUseDeveloperSupport(BuildConfig.DEBUG)
.setInitialLifecycleState(LifecycleState.RESUMED)
.setBundleAssetName("index.android.bundle")
.build();
}
mReactRootView = new ReactRootView(this);
//传参
//
var
initProps = this.props.bundle; 获取参数
Bundle bundle = new Bundle();
bundle.putString("bundle", "首次进入参数");
mReactRootView.startReactApplication(mReactInstanceManager, getIntent().getStringExtra("INDEX"), bundle);
setContentView(mReactRootView);
// 运行中重新加载bundle文件
//
mReactInstanceManager.recreateReactContextInBackground();
}
//
//此方法监听js端，在顶部页面时调用原生返回方法
@Override
public void invokeDefaultOnBackPressed() {
super.onBackPressed();
}
@Override
protected void onPause() {
super.onPause();
if (mReactInstanceManager != null) {
mReactInstanceManager.onHostPause(this);
}
}
@Override
protected void onResume() {
super.onResume();
if (mReactInstanceManager != null) {
mReactInstanceManager.onHostResume(this);
}
if (mPermissionsCallback != null) {
mPermissionsCallback.invoke();
mPermissionsCallback = null;
}
}
@Override
protected void onDestroy() {
super.onDestroy();
if (mReactRootView != null) {
mReactRootView.unmountReactApplication();
mReactRootView = null;
}
if (mReactInstanceManager != null) {
mReactInstanceManager.onHostDestroy(this);
}
}
//物理返回事件传递
@Override
public void onBackPressed() {
if (mReactInstanceManager != null) {
mReactInstanceManager.onBackPressed();
}else{
super.onBackPressed();
}
}
// 开发者模式
@Override
public boolean onKeyUp(int keyCode, KeyEvent event) {
if (mReactInstanceManager != null &&
mReactInstanceManager.getDevSupportManager().getDevSupportEnabled()) {
if (keyCode == KeyEvent.KEYCODE_MENU) {
mReactInstanceManager.showDevOptionsDialog();
return true;
}
}
return super.onKeyUp(keyCode, event);
}
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
if (mReactInstanceManager != null) {
mReactInstanceManager.onActivityResult(this, requestCode, resultCode, data);
}
}
@Override
protected void onNewIntent(Intent intent) {
if (mReactInstanceManager != null) {
mReactInstanceManager.onNewIntent(intent);
}
super.onNewIntent(intent);
}
@Override
public boolean onKeyLongPress(int keyCode, KeyEvent event) {
if (mReactInstanceManager != null
&& mReactInstanceManager.getDevSupportManager().getDevSupportEnabled()
&& keyCode == KeyEvent.KEYCODE_MEDIA_FAST_FORWARD) {
mReactInstanceManager.showDevOptionsDialog();
return true;
}
return false;
}
/**
* 权限动态申请
*
* @param permissions
* @param requestCode
* @param listener
*/
@RequiresApi(api = Build.VERSION_CODES.M)
@Override
public void requestPermissions(String[] permissions, int requestCode, PermissionListener listener) {
mPermissionListener = listener;
requestPermissions(permissions, requestCode);
}
@Override
public void onRequestPermissionsResult(
final int requestCode,
final String[] permissions,
final int[] grantResults) {
mPermissionsCallback = new com.facebook.react.bridge.Callback() {
@Override
public void invoke(Object... args) {
if (mPermissionListener != null && mPermissionListener.onRequestPermissionsResult(requestCode, permissions, grantResults)) {
mPermissionListener = null;
}
}
};
}
}

1