package com.example.user.myapplication; import android.content.Intent; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.view.View; import android.widget.Button; import android.widget.EditText; import android.widget.TextView; public class BActivity extends AppCompatActivity { private TextView ri; private EditText si; private Intent intentMain,sendToMain,intentC; private Button ReplyMain,SendToC,home,back; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_b); ri=(TextView)findViewById(R.id.textView5); si=(EditText)findViewById(R.id.editText2); intentC=new Intent(BActivity.this, CActivity.class); intentMain=new Intent(BActivity.this, MainActivity.class); home=(Button)findViewById(R.id.button3); back=(Button)findViewById(R.id.button4); ReplyMain=(Button)findViewById(R.id.button5); SendToC=(Button)findViewById(R.id.button6); ri.setText(getIntent().getStringExtra("infoB")); ReplyMain.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { sendToMain=new Intent(); sendToMain.putExtra("info2",si.getText().toString()); setResult(RESULT_OK,sendToMain); finish(); } }); SendToC.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { intentC.putExtra("infoC",si.getText().toString()); startActivity(intentC); } }); back.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { finish(); } }); home.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { startActivity(intentMain); } }); } }