如何在Android Studio中将数据从一种布局发送到另一种片段

您需要尝试使用调用片段实例

您可以发送捆绑商品，价值或模型

您的活动

    import androidx.appcompat.app.AppCompatActivity;
    import androidx.fragment.app.FragmentManager;
    import androidx.fragment.app.FragmentTransaction;

    import android.os.Bundle;
    import android.view.View;
    import android.widget.Button;
    import android.widget.TextView;

    public class MainActivity extends AppCompatActivity {

        TextView text1, text2;
        Button btnSend;

        @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_main);

            FragmentManager manager = getSupportFragmentManager();
            final FragmentTransaction t = manager.beginTransaction();
           

            text1 = findViewById(R.id.tv1);
            text2 = findViewById(R.id.tv2);

            btnSend = findViewById(R.id.button);
            btnSend.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    String txt1 = text1.getText().toString();
                    String txt2 = text2.getText().toString();

                  getSupportFragmentManager().beginTransaction().add(R.id.container, FirstFragment.newInstance(txt1,txt2),"FirstFragment").commit();


                }
            });


        }
    }

需要在片段类上调用片段实例

        package com.example.practice;

    import android.os.Bundle;

    import androidx.fragment.app.Fragment;

    import android.view.LayoutInflater;
    import android.view.View;
    import android.view.ViewGroup;
    import android.widget.TextView;


    public static FirstFragment newInstance(String param1, String param2) {
    FirstFragment fragment = new FirstFragment();
    Bundle args = new Bundle();
    args.putString("value1", param1);
    args.putString("value2", param2);
    fragment.setArguments(args);
    return fragment;
}


    public class FirstFragment extends Fragment {

        TextView t1, t2;
        String mParam1="",mParam2="";

        @Override
        public View onCreateView(LayoutInflater inflater, ViewGroup container,
                                 Bundle savedInstanceState) {
            // Inflate the layout for this fragment
            View v =  inflater.inflate(R.layout.fragment_first, container, false);

           t1 = v.findViewById(R.id.tv1);
           t2 = v.findViewById(R.id.tv2);
           Bundle b1 = getArguments();

           if (b1!= null) {
        mParam1 = getArguments().getString("value1");
        mParam2 = getArguments().getString("value2");
     }


           String name = mParam1;
           String text = mParam2;
           t1.setText(name);
           t2.setText(text);


            return v;
        }
    }