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我在做一个联系人列表android应用程序，但我的屏幕有一个小问题。 这里是我的search.xml代码：android意图新屏幕
<?xml version="1.0" encoding="utf-8" ?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<LinearLayout
android:orientation="horizontal"
android:layout_width="fill_parent"
android:layout_height="wrap_content">
<EditText android:id="@+id/searchText"
android:hint="@string/searchDefault"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_weight="1" />
<Button android:id="@+id/searchButton"
android:text="Search"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
</LinearLayout>
<ListView
android:id="@android:id/list"
android:layout_width="fill_parent"
android:layout_height="fill_parent" />
</LinearLayout>
enter code here
这里是我的detalii.xml：
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<TextView
android:id="@+id/name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"/>
<ListView
android:id="@android:id/list"
android:layout_width="fill_parent"
android:layout_height="fill_parent"/>
</LinearLayout>
我的问题是，看起来就像图像我的屏幕下方，但我想对资讯出现在整个屏幕上。我不知道我在做什么错。有人能给我一个解决方案吗？
这是我search.java：
package org.example.dbcontactconsole;
import android.app.ListActivity;
import android.content.Intent;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ListView;
import android.widget.SimpleCursorAdapter;
import static android.provider.BaseColumns._ID;
public class Search extends ListActivity {
private static int[] TO = {R.id.rowid,R.id.name, R.id.mobilephone, R.id.email };
private static String[] FROM = {_ID,DbConstants.NAME, DbConstants.PHONE, DbConstants.EMAIL, };
private Button sButton;
private ListView lv1;
private static SQLiteDatabase db;
private DbCreate contacts;
private Cursor cursor;
private EditText searchText;
protected SimpleCursorAdapter adapter;
protected void onCreate(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.search);
searchText=(EditText)findViewById(R.id.searchText);
sButton=(Button)findViewById(R.id.searchButton);
sButton.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
// TODO Auto-generated method stub
showDatabaseContent();
lv1 = getListView();
lv1.setTextFilterEnabled(true);
}
});
}
private Cursor getContacts() {
db = contacts.getReadableDatabase();
cursor = db.rawQuery("SELECT _id,name, phone, email FROM contactTest1 WHERE name LIKE ?",
new String[]{searchText.getText().toString()+"%"});
startManagingCursor(cursor);
return cursor;
}
public void showDatabaseContent(){
contacts = new DbCreate(this);
try {
cursor = getContacts();
showContacts(cursor);
} finally {
contacts.close();
db.close();
}
}
private void showContacts(Cursor cursor) {
//set up data binding
adapter = new SimpleCursorAdapter(this, R.layout.item, cursor, FROM, TO);
setListAdapter(adapter);
}
public void onListItemClick(ListView parent, View v, int position, long id) {
Intent abaintent = new Intent(this,Detalii.class);
Cursor cursor = (Cursor) adapter.getItem(position);
abaintent.putExtra("Contact_ID", cursor.getInt(cursor.getColumnIndex("_id")));
startActivity(abaintent);
}
}
这里是我的Detalii.java：
package org.example.dbcontactconsole;
import java.util.ArrayList;
import java.util.List;
import android.app.ListActivity;
import android.content.Intent;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.net.Uri;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.TextView;
public class Detalii extends ListActivity
{
protected TextView contactName;
protected TextView contactPhone;
protected TextView email;
protected int contactId;
protected List<Actiune> actiune;
protected ActiuneAdapter adapter;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.detalii);
contactId = getIntent().getIntExtra("Contact_ID",0);
SQLiteDatabase db = (new DbCreate(this)).getWritableDatabase();
Cursor cursor = db.rawQuery("SELECT name,phone,email FROM contactTest1 WHERE _id=?",new String[]{""+contactId});
if (cursor.getCount() == 1)
{
cursor.moveToFirst();
contactName = (TextView) findViewById(R.id.name);
contactName.setText(cursor.getString(cursor.getColumnIndex("name")));
actiune= new ArrayList<Actiune>();
String phoneString=cursor.getString(cursor.getColumnIndex("phone"));
if (phoneString!=null)
{
actiune.add(new Actiune("Suna la numar",phoneString,Actiune.ACTION_CALL));
}
String stringemail = cursor.getString(cursor.getColumnIndex("email"));
if (stringemail != null) {
actiune.add(new Actiune("Email", stringemail,Actiune.ACTION_EMAIL));
}
adapter = new ActiuneAdapter();
setListAdapter(adapter);
}
}
public void onListItemClick(ListView parent, View view, int position, long id) {
Actiune action = actiune.get(position);
Intent intent;
switch (action.getType()) {
case Actiune.ACTION_CALL:
Uri callUri = Uri.parse("tel:" + action.getData());
intent = new Intent(Intent.ACTION_CALL, callUri);
startActivity(intent);
break;
case Actiune.ACTION_EMAIL:
intent = new Intent(Intent.ACTION_SEND);
intent.setType("plain/text");
intent.putExtra(Intent.EXTRA_EMAIL, new String[]{action.getData()});
startActivity(intent);
break;
}
}
class ActiuneAdapter extends ArrayAdapter<Actiune> {
ActiuneAdapter() {
super(Detalii.this, R.layout.actiune_detalii, actiune);
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
Actiune action = actiune.get(position);
LayoutInflater inflater = getLayoutInflater();
View view = inflater.inflate(R.layout.actiune_detalii, parent, false);
TextView label = (TextView) view.findViewById(R.id.label);
label.setText(action.getLabel());
TextView data = (TextView) view.findViewById(R.id.data);
data.setText(action.getData());
return view;
}
}
}
这里是我的DBconsole.java：
package org.example.dbcontactconsole;
import android.content.ContentValues;
import android.content.Intent;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.AdapterView.OnItemSelectedListener;
import android.widget.ListView;
import android.widget.SimpleCursorAdapter;
import android.widget.Toast;
import android.view.View;
import android.app.ListActivity;
import static android.provider.BaseColumns._ID;
public class DbContactConsole extends ListActivity {
private static String[] FROM = {_ID,DbConstants.NAME };
private DbCreate contacts;
private static SQLiteDatabase db;
private static int[] TO = {R.id.rowid,R.id.name,};
private ListView lv1;
private static String itemId;
private Cursor cursor;
static final int CONTACT_CANCELED = 0;
static final int CONTACT_ADDED = 1;
static final int CONTACT_MODIFIED = 2;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
showDatabaseContent();
lv1 = getListView();
lv1.setTextFilterEnabled(true);
lv1.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView<?> a, View v, int position, long id) {
cursor = (Cursor) a.getItemAtPosition(position);
itemId = cursor.getString(0);
openOptionsMenu();
}
});
lv1.setOnItemSelectedListener(new OnItemSelectedListener() {
public void onItemSelected(AdapterView<?> parent, View view, int position, long id){
}
public void onNothingSelected(AdapterView<?> arg0) {
// TODO Auto-generated method stub
}
});
}
//selected item index from ListView
public void showDialogItemId(long itemId){
Toast.makeText(this, "Menu item selected index is" + Long.toString(itemId), Toast.LENGTH_LONG).show();
}
@Override
public boolean onCreateOptionsMenu(Menu menu){
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.menu, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item){
switch (item.getItemId()){
case R.id.modifyitem:
if(null != itemId){
Bundle contactToModify = new Bundle();
contactToModify.putString("cFirstName", cursor.getString(1));
contactToModify.putString("cMobilePhone", cursor.getString(2));
contactToModify.putString("cEmail", cursor.getString(3));
contactToModify.putString("mod_type", "modifyPerson");
Intent intent = new Intent(this, ContactDetails.class);
intent.setClass(this, ContactDetails.class);
intent.putExtras(contactToModify);
startActivityForResult(intent, CONTACT_MODIFIED);
}else{
Toast.makeText(this, "Select Contact to modify", Toast.LENGTH_LONG).show();
}
break;
case R.id.additem:
Intent i = new Intent(this, ContactDetails.class);
Bundle bun = new Bundle();
bun.putString("mod_type", "addPerson");
i.setClass(this, ContactDetails.class);
i.putExtras(bun);
startActivityForResult(i, CONTACT_ADDED);
break;
case R.id.removeitem:
if(null != itemId){
removeContact(itemId);
showDatabaseContent();
}
else{
Toast.makeText(this, "Select Contact to delete", Toast.LENGTH_LONG).show();
}
break;
case R.id.search:
Intent j =new Intent(this,Search.class);
j.setClass(this, Search.class);
startActivity(j);
break;
}
return true;
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent intent){
// See which child activity is calling us back.
switch (resultCode) {
case CONTACT_ADDED:
// This is the standard resultCode that is sent back if the
// activity crashed or didn't doesn't supply an explicit result.
if (resultCode == RESULT_FIRST_USER){
Bundle bundle = new Bundle();
bundle = intent.getBundleExtra("contactData");
addContact(bundle);
showDatabaseContent();
}
else{
Toast.makeText(this, "CANCEL CONTACT BUTTON PRESSED", Toast.LENGTH_LONG).show();
}
break;
case CONTACT_MODIFIED:
if (resultCode == 2){
Bundle bundle = new Bundle();
bundle = intent.getBundleExtra("contactData");
modifyContact(bundle);
showDatabaseContent();
}
else{
Toast.makeText(this, "MODIFY CONTACT FAILED", Toast.LENGTH_LONG).show();
}
break;
default:
break;
}
}
//method removes item from database
private void removeContact(String itemId){
db = contacts.getWritableDatabase();
db.delete(DbConstants.TABLE_NAME, "_ID=" + itemId, null);
}
private void addContact(Bundle bundle) {
// Insert a new record into the Events data source.
// You would do something similar for delete and update.
db = contacts.getWritableDatabase();
ContentValues vals = new ContentValues();
vals.put(DbConstants.NAME, bundle.getString("contactFirstName"));
vals.put(DbConstants.PHONE, bundle.getString("contactMobilePhone"));
vals.put(DbConstants.EMAIL, bundle.getString("contactEmail"));
db.insertOrThrow(DbConstants.TABLE_NAME, null, vals);
}
//method should modify existing Contact
private void modifyContact(Bundle bundle){
db = contacts.getWritableDatabase();
ContentValues vals = new ContentValues();
vals.put(DbConstants.NAME, bundle.getString("contactFirstName"));
vals.put(DbConstants.PHONE, bundle.getString("contactMobilePhone"));
vals.put(DbConstants.EMAIL, bundle.getString("contactEmail"));
db.update(DbConstants.TABLE_NAME, vals, _ID+"="+itemId, null);
}
private Cursor getContacts() {
db = contacts.getReadableDatabase();
cursor = db.query(DbConstants.TABLE_NAME, FROM, null, null, null,
null,DbConstants.NAME);
startManagingCursor(cursor);
return cursor;
}
public void showDatabaseContent(){
contacts = new DbCreate(this);
try {
cursor = getContacts();
showContacts(cursor);
} finally {
contacts.close();
db.close();
}
}
private void showContacts(Cursor cursor) {
//set up data binding
SimpleCursorAdapter adapter = new SimpleCursorAdapter(this, R.layout.item, cursor, FROM, TO);
setListAdapter(adapter);
}
}
什么是你的java活动代码，作为XML并不能真正帮助 – 2011-12-13 21:26:13