package com.flipcortex.helloworld; import androidx.appcompat.app.AppCompatActivity; import androidx.core.content.ContextCompat; import android.Manifest; import android.content.ContentValues; import android.content.Intent; import android.content.pm.PackageManager; import android.net.Uri; import android.os.Build; import android.os.Bundle; import android.telephony.TelephonyManager; import android.view.View; import android.widget.Button; import android.widget.EditText; import android.widget.TextView; public class MainActivity extends AppCompatActivity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); Button btn = (Button) findViewById(R.id.buttonSend); btn.setOnClickListener(new View.OnClickListener() { public void onClick(View v) { EditText et = (EditText) findViewById(R.id.editTextListItem); TextView tv = (TextView) findViewById(R.id.textView); tv.setText(et.getText()); } }); } public void postItem(View view){ EditText et = (EditText) findViewById(R.id.editTextListItem); TextView tv = (TextView) findViewById(R.id.textView); tv.setText(et.getText()); } }