在Flutter与原生平台平台交互时传递数据的类型对应
Java
| Dart | Java |
|---|
| bool | java.lang.Boolean |
| int | java.lang.Integer |
| int, if 32 bits not enough | java.lang.Long |
| double | java.lang.Double |
| String | java.lang.String |
| Uint8List | byte[] |
| Int32List | int[] |
| Int64List | long[] |
| Float32List | float[] |
| Float64List | double[] |
| List | java.util.ArrayList |
| Map | java.util.HashMap |
Kotlin
| Dart | Kotlin |
|---|
| null | null |
| bool | Boolean |
| int | Int |
| int, if 32 bits not enough | Long |
| double | Double |
| String | String |
| Uint8List | ByteArray |
| Int32List | IntArray |
| Int64List | LongArray |
| Float32List | FloatArray |
| Float64List | DoubleArray |
| List | List |
| Map | HashMap |
Objective-C
| Dart | Objective-C |
|---|
| null | nil (NSNull when nested) |
| bool | NSNumber numberWithBool: |
| int | NSNumber numberWithInt: |
| int, if 32 bits not enough | NSNumber numberWithLong: |
| double | NSNumber numberWithDouble: |
| String | NSString |
| Uint8List | FlutterStandardTypedData typedDataWithBytes: |
| Int32List | FlutterStandardTypedData typedDataWithInt32: |
| Int64List | FlutterStandardTypedData typedDataWithInt64: |
| Float32List | FlutterStandardTypedData typedDataWithFloat32: |
| Float64List | FlutterStandardTypedData typedDataWithFloat64: |
| List | NSArray |
| Map | NSDictionary |
Swift
| Dart | Swift |
|---|
| null | nil |
| bool | NSNumber(value: Bool) |
| int | NSNumber(value: Int32) |
| int, if 32 bits not enough | NSNumber(value: Int) |
| double | NSNumber(value: Double) |
| String | String |
| Uint8List | FlutterStandardTypedData(bytes: Data) |
| Int32List | FlutterStandardTypedData(int32: Data) |
| Int64List | FlutterStandardTypedData(int64: Data) |
| Float32List | FlutterStandardTypedData(float32: Data) |
| Float64List | FlutterStandardTypedData(float64: Data) |
| List | Array |
| Map | Dictionary |
C++
| Dart | C++ |
|---|
| null | EncodableValue() |
| bool | EncodableValue(bool) |
| int | EncodableValue(int32_t) |
| int, if 32 bits not enough | EncodableValue(int64_t) |
| double | EncodableValue(double) |
| String | EncodableValue(std::string) |
| Uint8List | EncodableValue(std::vector) |
| Int32List | EncodableValue(std::vector) |
| Int64List | EncodableValue(std::vector) |
| Float32List | EncodableValue(std::vector) |
| Float64List | EncodableValue(std::vector) |
| List | EncodableValue(std::vector) |
| Map | EncodableValue(std::map<EncodableValue, EncodableValue>) |
C
| Dart | C (GObject) |
|---|
| null | FlValue() |
| bool | FlValue(bool) |
| int | FlValue(int62_t) |
| double | FlValue(double) |
| String | FlValue(gchar*) |
| Uint8List | FlValue(uint8_t*) |
| Int32List | FlValue(int32_t*) |
| Int64List | FlValue(int64_t*) |
| Float32List | FlValue(float*) |
| Float64List | FlValue(double*) |
| List | FlValue(FlValue) |
| Map | FlValue(FlValue, FlValue) |
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