[英]How to transfer from one fragment to another in Android
I want to transfer some data like "editText1Double" and "sum" to another fragment (SecondFragment) that will use those data.我想将一些数据(如“editText1Double”和“sum”)传输到将使用这些数据的另一个片段(SecondFragment)。 How would I do that?
我该怎么做?
@Nullable
@Override
public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
View v = inflater.inflate(R.layout.first_fragment, container, false);
editText1 = (EditText) v.findViewById(R.id.editText1);
editText2 = (EditText) v.findViewById(R.id.editText2);
editText3 = (EditText) v.findViewById(R.id.editText3);
textView = (TextView) v.findViewById(R.id.textView);
calculateButton = (Button) v.findViewById(R.id.calculateButton);
calculateButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
editText1Double = Double.parseDouble(editText1.getText().toString());
editText2Double = Double.parseDouble(editText2.getText().toString());
editText3Double = Double.parseDouble(editText3.getText().toString());
sum = editText1Double + editText2Double + editText3Double;
}
});
1) Using Bundle : 1)使用捆绑:
FragmentManager fM = getActivity().getSupportFragmentManager();
FragmentTransaction fT = fM.beginTransaction();
Fragment_B fragment = new Fragment_B();//receiving fragment
Bundle bundle = new Bundle();
bundle.putDouble("key", sum);
fragment.setArguments(bundle);
fT.add(R.id.container, fragment);
fT.addToBackStack(null);
fT.commit();
and Receive as并接收为
Bundle bundle = getArguments();
Double sum = bundle.getDouble("key");
2)Using Construcor: 2)使用构造函数:
FragmentManager fM = getActivity().getSupportFragmentManager();
FragmentTransaction fT = fM.beginTransaction();
Fragment_B fragment = new Fragment_B(sum);//receiving fragment
fT.add(R.id.container, fragment);
fT.addToBackStack(null);
fT.commit();
and Receive as并接收为
public class Fragment_B extends Fragment{
private double sum;
public Fragment_B (double sum) {
this.sum= sum;
}
public Fragment_B () {
}}
Pass data by using通过使用传递数据
fragment = new HomeFragment();
Bundle bundle = new Bundle();
bundle.putDouble("double", 1.1);
fragment.setArguments(bundle);
getSupportFragmentManager().beginTransaction().replace(R.id.content_frame, fragment, "HomeFragment").addToBackStack(null).commit();
And get data in another Fragment using并使用另一个 Fragment 获取数据
Bundle bundle = getArguments();
double d = bundle.getDouble("double")
Hope it works fine for you.希望它对你有用。
Sending data from fragment_A从 fragment_A 发送数据
FragmentManager fM = getActivity().getSupportFragmentManager();
FragmentTransaction fT = fM.beginTransaction();
Fragment_B fragment = new Fragment_B();//receiving fragment
Bundle bundle = new Bundle();
bundle.putDouble("sum_key", sum);
fragment.setArguments(bundle);
fT.add(R.id.container, fragment);
fT.addToBackStack(null);
fT.commit();
Receiving data at fragment_B在 fragment_B 接收数据
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
Bundle bundle = getArguments();
Double sum = bundle.getDouble("sum_key");
}
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