我想根据我的 sqlite 数据库的输出更改图像视图，我有一个 list_row 布局，其中包含来自 sqlite 数据库的数据。我想要的是：如果 string = something 然后更改该列表视图项的图像视图。
活动：
public class MainActivity extends FragmentActivity {
Button btnStartService;
Context context;
Database mDB = new Database(this);
Cursor c;
SimpleCursorAdapter sCA;
ListView lv;
@SuppressWarnings("deprecation")
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
final ListView lv = (ListView)findViewById(R.id.listView1);
SimpleCursorAdapter sCA;
btnStartService = (Button) findViewById(R.id.button1);
btnStartService.setText("Add test data");
mDB.open();
btnStartService.setOnClickListener(new OnClickListener()
{
public void onClick(View v)
{
//startService(new Intent(MainActivity.this, CallService.class));
//stopService(new Intent(MainActivity.this, CallService.class));
}
});
ArrayList<String> list1 = new ArrayList<String>();
ArrayList<String> list2 = new ArrayList<String>();
c = mDB.getValues();
c.moveToFirst();
startManagingCursor(c);
for (int i = 0; i < c.getCount(); i++) {
String number = c.getString(c.getColumnIndex("cname"));
String action = c.getString(c.getColumnIndex("caction"));
String forwardnumber = c.getString(c.getColumnIndex("cnumber"));
if (action.equals("Block Call")) {
Log.d("LOG_TAG", "Block call");
//Change image to this item
}else {
Log.d("LOG_TAG", "Forward call");
//Change image
}
Log.d("LOG_TAG", number + " " + action + " " + forwardnumber + " ");
list1.add(number);
list2.add(forwardnumber);
c.moveToNext();
}
//String []from = {"cname", "caction", "cnumber"};
//int []to = {R.id.txtNumber,R.id.txtAction,R.id.txtFNumber};
//sCA = new SimpleCursorAdapter(this, R.layout.list_row, c, from, to);
//lv.setAdapter(sCA);
//sCA.notifyDataSetChanged();
//int []to = {R.id.txtNumber,R.id.txtAction,R.id.txtFNumber};
//sCA = new SimpleCursorAdapter(this, R.layout.list_row, c, list, to);
c = mDB.getEmp();
String []from = {"cname","caction","cnumber"};
int []to = {R.id.txtNumber,R.id.txtAction,R.id.txtFNumber};
sCA = new SimpleCursorAdapter(this, R.layout.list_row, c, from, to);
//ImageView iv = (ImageView)findViewById(R.id.imgAction);
//iv.setImageResource(R.drawable.one);
/*if (from[2] == "Block Call") {
Log.d("LOG_TAG", "Blocked");
}else {
Log.d("LOG_TAG", "Forward");
}*/
lv.setAdapter(sCA);
sCA.notifyDataSetChanged();
c.requery();
}
@Override
protected void onResume() {
super.onResume();
}
@Override
protected void onPause() {
super.onPause();
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.action_addnumber:
Log.d("LOG_TAG", "Add number");
FragmentManager fm = getSupportFragmentManager();
CustomDialogFragment addDialog = new CustomDialogFragment();
addDialog.show(fm, "dialog");
return true;
case R.id.action_settings:
Log.d("LOG_TAG", "Open settings");
Intent myIntent = new Intent(MainActivity.this, PrefrencesActivity.class);
MainActivity.this.startActivity(myIntent);
return true;
}
return super.onOptionsItemSelected(item);
}
@SuppressWarnings("deprecation")
public void doPositiveClick(String etNumber, String etSpinner, String etForwardTo){
ContentValues cv = new ContentValues();
cv.put("cName", etNumber);
cv.put("cAction", etSpinner);
cv.put("cNumber", etForwardTo);
mDB.empInsert(cv);
c.requery();
}
}
数据库类：
public class Database
{
public static final String DB_NAME = "callContacts";
public static final String DB_CONTACTS = "callContactList";
MyHelper mh;
Context myCon;
SQLiteDatabase sdb;
public Database(Context c) {
myCon = c;
mh = new MyHelper(myCon, DB_NAME, null, 1);
}
public void open() {
sdb = mh.getWritableDatabase();
}
public class MyHelper extends SQLiteOpenHelper {
public MyHelper(Context context, String name, CursorFactory factory, int version) {
super(context, name, factory, version);
// TODO Auto-generated constructor stub
}
@Override
public void onCreate(SQLiteDatabase db){
db.execSQL("create table callContactList(_id integer primary key, cname text,caction text,cnumber text);");
Log.d("1", "Table Created");
}
@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
// TODO Auto-generated method stub
}
}
public void empInsert(ContentValues cv) {
sdb.insert("callContactList", null, cv);
}
public Cursor getEmp() {
Cursor c = sdb.query("callContactList", null, null, null, null, null, null);
return c;
}
@SuppressWarnings({ "finally", "resource" })
public boolean CheckNumber(String number) throws SQLException {
int count = -1;
Cursor c = null;
try {
String query = "select * from callContactList where cname = " + number;
c = sdb.rawQuery(query, new String[] {number});
if (c.moveToFirst()) {
count = c.getInt(0);
}
return count > 0;
}
finally {
if (c != null) {
Log.d("LOG_TAG", "True");
c.close();
return true;
}else{
Log.d("LOG_TAG", "False");
return false;
}
}
}
public boolean verificationNumber(String _number) {
Cursor c = sdb.rawQuery("SELECT 1 FROM callContactList WHERE cname=?", new String[] {_number});
boolean exists = c.moveToFirst();
Log.d("LOG_TAG", Boolean.toString(exists));
c.close();
return exists;
}
public boolean verificationAction(String _action, String _incomingNumber) {
Cursor c = sdb.rawQuery("SELECT 1 FROM callContactList WHERE cname=? AND caction=?", new String[] {_incomingNumber, _action});
boolean exists = c.moveToFirst();
Log.d("LOG_TAG", Boolean.toString(exists));
c.close();
return exists;
}
public String getForwardNumber(String _number){
String forwardNumber = "";
String selectQuery = "SELECT * FROM callContactList WHERE cname="+_number;
//SQLiteDatabase sdb = this.getReadableDatabase();
Cursor cursor = sdb.rawQuery(selectQuery, null);
if (null != cursor && cursor.moveToFirst()) {
forwardNumber = cursor.getString(cursor.getColumnIndex("cnumber"));
}
return forwardNumber;
}
public Cursor getValues() throws SQLException{
// TODO Auto-generated method stub
Cursor mCursor = sdb.query("callContactList",
new String[] {"cname" , "caction", "cnumber"},
null, null, null, null, null);
if (mCursor != null) {
mCursor.moveToFirst();
}
return mCursor;
}
}
任何帮助深表感谢！谢谢