@@ -24,9 +24,9 @@ import Want from '@ohos.application.Want';
| uri | Read only | string | No | URI information to match. If **uri** is specified in a **Want** object, the **Want** object will match the specified URI information, including **scheme**, **schemeSpecificPart**, **authority**, and **path**.|
| type | Read only | string | No | MIME type, that is, the type of the file to open, for example, **text/xml** and **image/***. For details about the MIME type definition, see https://www.iana.org/assignments/media-types/media-types.xhtml?utm_source=ld246.com. |
| flags | Read only | number | No | How the **Want** object will be handled. For details, see [flags](js-apis-featureAbility.md#flags).|
| action | Read only | string | No | Action option. |
| parameters | Read only | {[key: string]: any} | No | Want parameters in the form of custom key-value (KV) pairs. By default, the following keys are carried:<br>**ohos.aafwk.callerPid**: PID of the caller.<br>**ohos.aafwk.param.callerToken**: token of the caller.<br>**ohos.aafwk.param.callerUid**: UID of the caller. The **userId** parameter in the [Bundle](js-apis-Bundle.md) module can be used to obtain application and bundle information. |
| entities | Read only | Array\<string> | No | List of entities. |
| action | Read only | string | No | Action to take, such as viewing and sharing application details. In implicit **Want**, you can define this field and use it together with **uri** or **parameters** to specify the operation to be performed on the data. |
| parameters | Read only | {[key: string]: any} | No | Want parameters in the form of custom key-value (KV) pairs. By default, the following keys are carried:<br>**ohos.aafwk.callerPid**: PID of the caller.<br>**ohos.aafwk.param.callerToken**: token of the caller.<br>**ohos.aafwk.param.callerUid**: UID in [bundleInfo](js-apis-bundle-BundleInfo.md#bundleinfo-1), that is, the application UID in the bundle information. |
| entities | Read only | Array\<string> | No | Additional category information (such as browser and video player) of the target ability. It is a supplement to **action** in implicit **Want** and is used to filter ability types. |
| moduleName<sup>9+</sup> | Read only | string | No | Module to which the ability belongs.|
**Example**
...
...
@@ -46,9 +46,69 @@ import Want from '@ohos.application.Want';
})
```
-Passing a file descriptor (FD)
-Data is transferred through user-defined fields. The following data types are supported:
``` js
* String
```ts
let want = {
bundleName: "com.example.demo",
abilityName: "com.example.demo.MainAbility",
parameters: {
keyForString: "str",
},
}
```
* Number
```ts
let want = {
bundleName: "com.example.demo",
abilityName: "com.example.demo.MainAbility",
parameters: {
keyForInt: 100,
keyForDouble: 99.99,
},
}
```
* Boolean
```ts
let want = {
bundleName: "com.example.demo",
abilityName: "com.example.demo.MainAbility",
parameters: {
keyForBool: true,
},
}
```
* Object
```ts
let want = {
bundleName: "com.example.demo",
abilityName: "com.example.demo.MainAbility",
parameters: {
keyForObject: {
keyForObjectString: "str",
keyForObjectInt: -200,
keyForObjectDouble: 35.5,
keyForObjectBool: false,
},
},
}
```
* Array
```ts
let want = {
bundleName: "com.example.demo",
abilityName: "com.example.demo.MainAbility",
parameters: {
keyForArrayString: ["str1", "str2", "str3"],
keyForArrayInt: [100, 200, 300, 400],
keyForArrayDouble: [0.1, 0.2],
keyForArrayObject: [{obj1: "aaa"}, {obj2: 100}],
},
}
```
* File descriptor (FD)
```ts
import fileio from '@ohos.fileio';
var fd;
try {
...
...
@@ -71,52 +131,4 @@ import Want from '@ohos.application.Want';
})
```
- Passing **RemoteObject** data
``` js
importrpcfrom'@ohos.rpc';
importAbilityfrom'@ohos.application.Ability'
classStubextendsrpc.RemoteObject{
constructor(des){
if(typeofdes=='string'){
super(des);
}else{
returnnull;
}
}
onRemoteRequest(code,data,reply,option){
if(code===1){
console.log('onRemoteRequest called')
lettoken=data.readInterfaceToken();
letnum=data.readInt();
this.method();
returntrue;
}
returnfalse;
}
method(){
console.log('method called');
}
}
varremoteObject=newStub('want-test');
varwant={
"deviceId":"",// An empty deviceId indicates the local device.