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我有我的SMSReceiverActivity.java下面的代碼：不能增加價值的ListView
package com.example.smsTest;
import java.util.ArrayList;
import java.util.List;
import android.app.ListActivity;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.Bundle;
import android.widget.ArrayAdapter;
import android.widget.ListView;
public class SMSReceiverActivity extends ListActivity {
private SQLiteAdapter mySQLiteAdapter;
private List<String> bodyarr = new ArrayList<String>();
private ArrayAdapter<Message> arrayAdpt;
private BroadcastReceiver mIntentReceiver;
ListView listview;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_smsreceiver);
mySQLiteAdapter = new SQLiteAdapter(this);
mySQLiteAdapter.openToRead();
List<Message> bodyarr = mySQLiteAdapter.getAllMessages();
listview=this.getListView();
arrayAdpt = new ArrayAdapter<Message>(SMSReceiverActivity.this,
android.R.layout.simple_list_item_1, bodyarr);
listview.setAdapter(arrayAdpt);
}
@Override
protected void onResume() {
super.onResume();
IntentFilter intentFilter = new IntentFilter("SmsMessage.intent.MAIN");
mIntentReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
String msg = intent.getStringExtra("get_msg");
//Process the sms format and extract body & phoneNumber
msg = msg.replace("\n", "");
String body = msg.substring(msg.lastIndexOf(":")+1, msg.length());
String pNumber = msg.substring(0,msg.lastIndexOf(":"));
bodyarr.add(body);
arrayAdpt.notifyDataSetChanged();
/*
* Create/Open a SQLite database
* and fill with dummy content
* and close it
*/
mySQLiteAdapter = new SQLiteAdapter(SMSReceiverActivity.this);
mySQLiteAdapter.openToWrite();
//mySQLiteAdapter.deleteAll();
mySQLiteAdapter.insert(body);
mySQLiteAdapter.close();
}
};
this.registerReceiver(mIntentReceiver, intentFilter);
}
@Override
protected void onPause() {
super.onPause();
this.unregisterReceiver(this.mIntentReceiver);
}
}
這是SQLiteAdapter.java的代碼：
package com.example.smsTest;
import java.util.ArrayList;
import java.util.List;
import android.content.ContentValues;
import android.content.Context;
import android.database.Cursor;
import android.database.SQLException;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
import android.database.sqlite.SQLiteDatabase.CursorFactory;
public class SQLiteAdapter {
public static final String MYDATABASE_NAME = "MY_DATABASE";
public static final String MYDATABASE_TABLE = "MY_TABLE";
public static final int MYDATABASE_VERSION = 1;
public static final String KEY_ID = "_id";
public static final String KEY_CONTENT = "Content";
//create table MY_DATABASE (ID integer primary key, Content text not null);
private static final String SCRIPT_CREATE_DATABASE =
"create table " + MYDATABASE_TABLE + " ("
+ KEY_ID + " integer primary key autoincrement, "
+ KEY_CONTENT + " text not null);";
private SQLiteHelper sqLiteHelper;
private SQLiteDatabase sqLiteDatabase;
private Context context;
public SQLiteAdapter(Context c){
context = c;
}
public SQLiteAdapter openToRead() throws android.database.SQLException {
sqLiteHelper = new SQLiteHelper(context, MYDATABASE_NAME, null, MYDATABASE_VERSION);
sqLiteDatabase = sqLiteHelper.getReadableDatabase();
return this;
}
public SQLiteAdapter openToWrite() throws android.database.SQLException {
sqLiteHelper = new SQLiteHelper(context, MYDATABASE_NAME, null, MYDATABASE_VERSION);
sqLiteDatabase = sqLiteHelper.getWritableDatabase();
return this;
}
public void close(){
sqLiteHelper.close();
}
public long insert(String content){
ContentValues contentValues = new ContentValues();
contentValues.put(KEY_CONTENT, content);
return sqLiteDatabase.insert(MYDATABASE_TABLE, null, contentValues);
}
public int deleteAll(){
return sqLiteDatabase.delete(MYDATABASE_TABLE, null, null);
}
public Cursor queueAll(){
String[] columns = new String[]{KEY_ID, KEY_CONTENT};
Cursor cursor = sqLiteDatabase.query(MYDATABASE_TABLE, columns,
null, null, null, null, null);
return cursor;
}
public List<Message> getAllMessages() {
String[] columns = new String[]{KEY_ID, KEY_CONTENT};
List<Message> messages = new ArrayList<Message>();
Cursor cursor = sqLiteDatabase.query(MYDATABASE_TABLE,
columns, null, null, null, null, null);
cursor.moveToFirst();
while (!cursor.isAfterLast()) {
Message message = cursorToMessage(cursor);
messages.add(message);
cursor.moveToNext();
}
// Make sure to close the cursor
cursor.close();
return messages;
}
public class SQLiteHelper extends SQLiteOpenHelper {
public SQLiteHelper(Context context, String name,
CursorFactory factory, int version) {
super(context, name, factory, version);
}
@Override
public void onCreate(SQLiteDatabase db) {
// TODO Auto-generated method stub
db.execSQL(SCRIPT_CREATE_DATABASE);
}
@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
// TODO Auto-generated method stub
}
}
private Message cursorToMessage(Cursor cursor) {
Message message = new Message();
message.setId(cursor.getLong(0));
message.setMessage(cursor.getString(1));
return message;
}
}
而這裏的消息。 java代碼：
package com.example.smsTest;
public class Message {
private long id;
private String message;
public long getId() {
return id;
}
public void setId(long id) {
this.id = id;
}
public String getMessage() {
return message;
}
public void setMessage(String message) {
this.message = message;
}
// Will be used by the ArrayAdapter in the ListView
@Override
public String toString() {
return message;
}
}
的問題是String body = msg.substring(msg.lastIndexOf(":")+1, msg.length());值沒有更新到ListView時，該代碼火bodyarr.add(body); arrayAdpt.notifyDataSetChanged();。此代碼可以在SMSReceiverActivity類中找到。
這是工作之前，我添加了一個sqlite代碼。