您好朋友,我是Android
的新朋友,使用setSelection(1)重定向到列表视图中的特定位置。我的问题是,如何更改特定项目位置的背景颜色,并且还希望获取此特定列表视图项目中存在的文本。这是我的代码,为此我使用了什么逻辑,我知道可以通过这种方法实现
mylistview.setOnItemClickListener();
但是我该如何使用setSelection()方法实现这一目标?
package bible.swordof.God;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.graphics.Color;
import android.os.Handler;
import android.support.annotation.NonNull;
import android.support.design.widget.NavigationView;
import android.support.v4.app.Fragment;
import android.support.v4.view.GravityCompat;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.ActionBarDrawerToggle;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.support.v7.widget.Toolbar;
import android.view.MenuItem;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.BaseAdapter;
import android.widget.GridView;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;
import java.util.ArrayList;
import es.dmoral.toasty.Toasty;
public class ALLVERSE extends AppCompatActivity implements NavigationView.OnNavigationItemSelectedListener {
private ListView mylistview;
private ArrayList<String>versenumber;
private ArrayList<String>verselist;
private ArrayList<String>id;
private ArrayList<String>refernce;
private DatabaseHelper mDBHelper;
private SQLiteDatabase mDb;
private int booknumber;
private int chapternumber;
private String bookname;
private TextView booknametitle;
private FullverseAdopter fullverseAdopter;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_allverse);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
booknametitle=findViewById(R.id.bookname);
Intent mIntent = getIntent();
booknumber = mIntent.getIntExtra("Boooknumber",0);
chapternumber= mIntent.getIntExtra("Chapternumber", 0);
bookname=mIntent.getStringExtra("Bookname");
booknametitle.setText(bookname.toString() +" "+ chapternumber);
//Toast.makeText(this, ""+bookname, Toast.LENGTH_SHORT).show();
setSupportActionBar(toolbar);
toolbar.setTitle("ALL VERSE");
setSupportActionBar(toolbar);
if (getSupportActionBar() != null) {
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
getSupportActionBar().setDisplayShowHomeEnabled(true);
}
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(
this, drawer, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
drawer.addDrawerListener(toggle);
toggle.syncState();
NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
navigationView.setNavigationItemSelectedListener(this);
setData();
mylistview=findViewById(R.id.mylistview);
BaseAdapter baseAdapter=new BaseAdopter(this,versenumber,id,verselist,refernce);
mylistview.setAdapter(baseAdapter);
mylistview.setSelection(3);
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// handle arrow click here
if (item.getItemId() == android.R.id.home) {
onBackPressed();
}
return super.onOptionsItemSelected(item);
}
private void setData() {
versenumber=new ArrayList<>();
verselist=new ArrayList<>();
refernce=new ArrayList<>();
id=new ArrayList<>();
mDBHelper = new DatabaseHelper(this);
mDb = mDBHelper.getReadableDatabase();
Cursor cursor = mDb.rawQuery("SELECT id, v, t from t_kjv where b="+booknumber+" AND c="+chapternumber+";", new String[]{});
if(cursor!=null && cursor.getCount() > 0)
{ if (cursor.moveToFirst())
{
do {
id.add(cursor.getString(0));
versenumber.add(cursor.getString(1));
verselist.add(cursor.getString(2));
refernce.add(bookname+" "+chapternumber);
}
while (cursor.moveToNext());
}
}
}
@Override
public boolean onNavigationItemSelected(MenuItem item) {
// Handle navigation view item clicks here.
Fragment fragment;
int id = item.getItemId();
if (id == R.id.home) {
Intent intent=new Intent(this,MainActivity.class);
startActivity(intent);
} else if (id == R.id.favoruite)
{ Intent intent=new Intent(this,Favourite.class);
startActivity(intent);
} else if (id == R.id.nav_manage) {
} else if (id == R.id.nav_share) {
} else if (id == R.id.nav_send) {
}
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
drawer.closeDrawer(GravityCompat.START);
return true;
}
}