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 { public static final String EXTRA_ITEM = "com.flipcortex.helloworld.ITEM"; @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()); // // Intent i = new Intent(getApplicationContext(),DisplayListItems.class); // EditText et = (EditText) findViewById(R.id.editTextListItem); // String listItem = et.getText().toString(); // i.putExtra(EXTRA_ITEM, listItem); // startActivity(i); Intent i = new Intent(getApplicationContext(),DisplayListItems.class); EditText et = (EditText) findViewById(R.id.editTextListItem); String listItem = et.getText().toString(); if(listItem!=null){ ContentValues values = new ContentValues(); values.put(ListProvider.LISTITEM, listItem); Uri uri = getContentResolver().insert(ListProvider.CONTENT_URI, values); startActivity(i); } } }); } public void postItem(View view){ EditText et = (EditText) findViewById(R.id.editTextListItem); TextView tv = (TextView) findViewById(R.id.textView); tv.setText(et.getText()); } }