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- package com.delimasqlite.myapplication;
- import android.content.Context;
- import android.content.Intent;
- import android.os.Bundle;
- import android.view.KeyEvent;
- import android.view.Menu;
- import android.view.MenuItem;
- import android.view.View;
- import android.widget.AdapterView;
- import android.widget.ArrayAdapter;
- import android.widget.AdapterView.OnItemClickListener;
- import android.widget.ListView;
- import androidx.appcompat.app.AppCompatActivity;
- import java.util.ArrayList;
- import java.util.List;
- public class MainActivity extends AppCompatActivity {
- public final static String EXTRA_MESSAGE = "MESSAGE";
- private ListView obj;
- DBHelper mydb;
- @Override
- protected void onCreate(Bundle savedInstanceState) {
- super.onCreate(savedInstanceState);
- setContentView(R.layout.activity_main);
- mydb = new DBHelper(this);
- ArrayList array_list = mydb.getAllCotacts();
- ArrayAdapter arrayAdapter=new ArrayAdapter(this,android.R.layout.simple_list_item_1, array_list);
- obj = (ListView)findViewById(R.id.listView1);
- obj.setAdapter(arrayAdapter);
- obj.setOnItemClickListener(new OnItemClickListener(){
- @Override
- public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,long arg3) {
- // TODO Auto-generated method stub
- int id_To_Search = arg2 + 1;
- Bundle dataBundle = new Bundle();
- dataBundle.putInt("id", id_To_Search);
- Intent intent = new Intent(getApplicationContext(),DisplayContact.class);
- intent.putExtras(dataBundle);
- startActivity(intent);
- }
- });
- }
- @Override
- public boolean onCreateOptionsMenu(Menu menu) {
- // Inflate the menu; this adds items to the action bar if it is present.
- getMenuInflater().inflate(R.menu.main_menu, menu);
- return true;
- }
- @Override
- public boolean onOptionsItemSelected(MenuItem item){
- super.onOptionsItemSelected(item);
- switch(item.getItemId()) {
- case R.id.item1:Bundle dataBundle = new Bundle();
- dataBundle.putInt("id", 0);
- Intent intent = new Intent(getApplicationContext(),DisplayContact.class);
- intent.putExtras(dataBundle);
- startActivity(intent);
- return true;
- default:
- return super.onOptionsItemSelected(item);
- }
- }
- public boolean onKeyDown(int keycode, KeyEvent event) {
- if (keycode == KeyEvent.KEYCODE_BACK) {
- moveTaskToBack(true);
- }
- return super.onKeyDown(keycode, event);
- }
- }
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