将方法转换为java 8 lambda
如何使用Java 8 lambda/stream()以更直观的方式在函数式编程中编写此方法将方法转换为java 8 lambda,java,lambda,functional-programming,java-8,java-stream,Java,Lambda,Functional Programming,Java 8,Java Stream,如何使用Java 8 lambda/stream()以更直观的方式在函数式编程中编写此方法 int animation = R.style.DialogAnimationSlideHorizontal; String body; String subject = mSubjectView.getText().toString(); BaseDialog dialog = dialogFactory.getType(DialogTypes.DIALOG_FULL); if (!checkFiel
int animation = R.style.DialogAnimationSlideHorizontal;
String body;
String subject = mSubjectView.getText().toString();
BaseDialog dialog = dialogFactory.getType(DialogTypes.DIALOG_FULL);
if (!checkFields()) {
// one of the recipients is invalid.
body = getString(R.string.bad_address);
dialog.showDialog(body, animation, new DialogBuilder.Positive() {
@Override
public void handleClick(DialogInterface dialogInterface, View view) {
// do nothing
}
});
} else if (Helpers.isEmpty(subject)) {
// Yup, empty... send the message without a subject?
body = getString(R.string.empty_subject_compose);
dialog.showDialog(body, animation, new DialogBuilder.Positive() {
@Override
public void handleClick(DialogInterface dialogInterface, View view) {
// user accepted to send anyway.
mWebView.getComposeContent();
}
});
} else {
// everything is correct! send the message.
mWebView.getComposeContent();
}
将所有匿名类替换为lambdas-like
new DialogBuilder.Positive() {
@Override
public void handleClick(DialogInterface dialogInterface, View view) {
...
}
}
|
V
(dialogInterface, view) -> { /*do nothing*/ }
(dialogInterface, view) -> { mWebView.getComposeContent(); }
我不知道如何在这里应用流API。将所有匿名类替换为类似lambdas的类
new DialogBuilder.Positive() {
@Override
public void handleClick(DialogInterface dialogInterface, View view) {
...
}
}
|
V
(dialogInterface, view) -> { /*do nothing*/ }
(dialogInterface, view) -> { mWebView.getComposeContent(); }
我不知道如何在这里应用流API。尝试更广泛的改进,包括
checkFields()
之类的方法(如果代码检查一组字段,它是流的一个很好的候选者)。Functional在与整体功能风格架构搭配时效果最佳。尝试更广泛的改进,包括checkFields()
(如果代码检查一组字段,那么它是流的一个很好的候选者)。与整体功能风格体系结构搭配使用时,Functional效果最佳。