本文整理汇总了C++中JEnv::SetCharField方法的典型用法代码示例。如果您正苦于以下问题：C++ JEnv::SetCharField方法的具体用法？C++ JEnv::SetCharField怎么用？C++ JEnv::SetCharField使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类JEnv的用法示例。
在下文中一共展示了JEnv::SetCharField方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: SetJavaField
//.........这里部分代码省略.........
}
else
{
env.SetBooleanField(targetJavaObject, fieldId, value->BooleanValue());
}
break;
}
case 'B': //byte
{
//TODO: validate value is a byte before calling
if (isStatic)
{
env.SetStaticByteField(clazz, fieldId, value->Int32Value());
}
else
{
env.SetByteField(targetJavaObject, fieldId, value->Int32Value());
}
break;
}
case 'C': //char
{
//TODO: validate value is a single char
String::Utf8Value stringValue(value->ToString());
JniLocalRef value(env.NewStringUTF(*stringValue));
const char* chars = env.GetStringUTFChars(value, 0);
if (isStatic)
{
env.SetStaticCharField(clazz, fieldId, chars[0]);
}
else
{
env.SetCharField(targetJavaObject, fieldId, chars[0]);
}
env.ReleaseStringUTFChars(value, chars);
break;
}
case 'S': //short
{
//TODO: validate value is a short before calling
if (isStatic)
{
env.SetStaticShortField(clazz, fieldId, value->Int32Value());
}
else
{
env.SetShortField(targetJavaObject, fieldId, value->Int32Value());
}
break;
}
case 'I': //int
{
//TODO: validate value is a int before calling
if (isStatic)
{
env.SetStaticIntField(clazz, fieldId, value->Int32Value());
}
else
{
env.SetIntField(targetJavaObject, fieldId, value->Int32Value());
}
break;
}
case 'J': //long示例2: SetJavaField
void FieldAccessor::SetJavaField(const Local<Object>& target, const Local<Value>& value, FieldCallbackData *fieldData)
{
JEnv env;
auto isolate = Isolate::GetCurrent();
HandleScope handleScope(isolate);
jweak targetJavaObject;
const auto& fieldTypeName = fieldData->signature;
auto isStatic = fieldData->isStatic;
auto isPrimitiveType = fieldTypeName.size() == 1;
auto isFieldArray = fieldTypeName[0] == '[';
if (fieldData->fid == nullptr)
{
auto fieldJniSig = isPrimitiveType
? fieldTypeName
: (isFieldArray
? fieldTypeName
: ("L" + fieldTypeName + ";"));
if (isStatic)
{
fieldData->clazz = env.FindClass(fieldData->declaringType);
assert(fieldData->clazz != nullptr);
fieldData->fid = env.GetStaticFieldID(fieldData->clazz, fieldData->name, fieldJniSig);
assert(fieldData->fid != nullptr);
}
else
{
fieldData->clazz = env.FindClass(fieldData->declaringType);
assert(fieldData->clazz != nullptr);
fieldData->fid = env.GetFieldID(fieldData->clazz, fieldData->name, fieldJniSig);
assert(fieldData->fid != nullptr);
}
}
if (!isStatic)
{
targetJavaObject = objectManager->GetJavaObjectByJsObject(target);
}
auto fieldId = fieldData->fid;
auto clazz = fieldData->clazz;
if (isPrimitiveType)
{
switch (fieldTypeName[0])
{
case 'Z': //bool
{
//TODO: validate value is a boolean before calling
if (isStatic)
{
env.SetStaticBooleanField(clazz, fieldId, value->BooleanValue());
}
else
{
env.SetBooleanField(targetJavaObject, fieldId, value->BooleanValue());
}
break;
}
case 'B': //byte
{
//TODO: validate value is a byte before calling
if (isStatic)
{
env.SetStaticByteField(clazz, fieldId, value->Int32Value());
}
else
{
env.SetByteField(targetJavaObject, fieldId, value->Int32Value());
}
break;
}
case 'C': //char
{
//TODO: validate value is a single char
String::Utf8Value stringValue(value->ToString());
JniLocalRef value(env.NewStringUTF(*stringValue));
const char* chars = env.GetStringUTFChars(value, 0);
if (isStatic)
{
env.SetStaticCharField(clazz, fieldId, chars[0]);
}
else
{
env.SetCharField(targetJavaObject, fieldId, chars[0]);
}
env.ReleaseStringUTFChars(value, chars);
break;
}
case 'S': //short
{
//TODO: validate value is a short before calling
if (isStatic)
//.........这里部分代码省略.........