我是Android新手，我想将Edittext的输入保存到我的数据库中。这是我的数据库：
package de.retowaelchli.filterit.database;
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;
public class ADFilterDBAdapter {
public static final String ROW_ID = "_id";
public static final String NAME = "name";
public static final String KEYWORD = "keyword";
public static final String CACHE = "cache";
private static final String DATABASE_TABLE = "adfilter";
private DatabaseHelper mDbHelper;
private SQLiteDatabase mDb;
private final Context mCtx;
private static class DatabaseHelper extends SQLiteOpenHelper {
DatabaseHelper(Context context) {
super(context, DBAdapter.DATABASE_NAME, null, DBAdapter.DATABASE_VERSION);
}
@Override
public void onCreate(SQLiteDatabase db) {
}
@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
}
}
/**
* Constructor - takes the context to allow the database to be
* opened/created
*
* @param ctx
* the Context within which to work
*/
public ADFilterDBAdapter(Context ctx) {
this.mCtx = ctx;
}
/**
* Open the cars database. If it cannot be opened, try to create a new
* instance of the database. If it cannot be created, throw an exception to
* signal the failure
*
* @return this (self reference, allowing this to be chained in an
* initialization call)
* @throws SQLException
* if the database could be neither opened or created
*/
public ADFilterDBAdapter open() throws SQLException {
this.mDbHelper = new DatabaseHelper(this.mCtx);
this.mDb = this.mDbHelper.getWritableDatabase();
return this;
}
/**
* close return type: void
*/
public void close() {
this.mDbHelper.close();
}
/**
* Create a new car. If the car is successfully created return the new
* rowId for that car, otherwise return a -1 to indicate failure.
*
* @param name
* @param model
* @param year
* @return rowId or -1 if failed
*/
public long createADFilter(String name, String keyword, String cache){
ContentValues initialValues = new ContentValues();
initialValues.put(NAME, name);
initialValues.put(KEYWORD, keyword);
initialValues.put(CACHE, cache);
return this.mDb.insert(DATABASE_TABLE, null, initialValues);
}
/**
* Delete the car with the given rowId
*
* @param rowId
* @return true if deleted, false otherwise
*/
public boolean deleteADFilter(long rowId) {
return this.mDb.delete(DATABASE_TABLE, ROW_ID + "=" + rowId, null) > 0; //$NON-NLS-1$
}
/**
* Return a Cursor over the list of all cars in the database
*
* @return Cursor over all cars
*/
public Cursor getAllADFilter() {
return this.mDb.query(DATABASE_TABLE, new String[] { ROW_ID,
NAME, KEYWORD, CACHE }, null, null, null, null, null);
}
/**
* Return a Cursor positioned at the car that matches the given rowId
* @param rowId
* @return Cursor positioned to matching car, if found
* @throws SQLException if car could not be found/retrieved
*/
public Cursor getADFilter(long rowId) throws SQLException {
Cursor mCursor =
this.mDb.query(true, DATABASE_TABLE, new String[] { ROW_ID, NAME,
KEYWORD, CACHE}, ROW_ID + "=" + rowId, null, null, null, null, null);
if (mCursor != null) {
mCursor.moveToFirst();
}
return mCursor;
}
/**
* Update the car.
*
* @param rowId
* @param name
* @param keyword
* @param cache
* @return true if the note was successfully updated, false otherwise
*/
public boolean updateADFilter(long rowId, String name, String keyword,
String cache){
ContentValues args = new ContentValues();
args.put(NAME, name);
args.put(KEYWORD, keyword);
args.put(CACHE, cache);
return this.mDb.update(DATABASE_TABLE, args, ROW_ID + "=" + rowId, null) >0;
}
}
它是其他数据库的副本我改为自己工作。
继承我的layout.xml：
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:weightSum="1">
<TextView
style="@style/NormalFont"
android:text="@string/adconfig"
android:layout_weight="0.05"
android:clickable="false"
/>
<TextView
style="@style/SmallFont"
android:text="@string/adname"
android:layout_weight="0.03" />
<EditText
android:layout_width="match_parent"
android:id="@+id/ADConfigName"
android:layout_weight="0.05"
android:layout_height="25dp"
android:layout_marginBottom="20dp">
<requestFocus></requestFocus>
</EditText>
<TextView
style="@style/SmallFont"
android:text="@string/adkeyword"
android:layout_weight="0.03"
/>
<EditText
android:layout_width="match_parent"
android:id="@+id/ADConfigKeyword"
android:layout_weight="0.05"
android:layout_height="25dp"
android:layout_marginBottom="20dp">
<requestFocus></requestFocus>
</EditText>
<TextView
style="@style/SmallFont"
android:text="@string/adcache"
android:layout_weight="0.03"
/>
<RadioGroup
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:checkedButton="@+id/adcache_true"
android:id="@+id/adcache"
android:gravity="center" >
<RadioButton
android:text="Yes"
android:id="@+id/adcache_true"
android:layout_width="80dip"
android:layout_height="wrap_content"
>
</RadioButton>
<RadioButton
android:text="No"
android:id="@+id/adcache_falsh"
android:layout_width="80dip"
android:layout_height="wrap_content">
</RadioButton>
</RadioGroup>
<TableLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:id="@+id/ADConfigMainsite"
android:layout_weight="0.76"
android:gravity="bottom">
<TableRow
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/ADConfigMainsite"
android:onClick="onClickADConfigSave"
android:layout_weight="0.05"
android:gravity="bottom">
<TextView
android:text="@string/adconfigsave"
style="@style/NormalFont"
android:gravity="bottom"/>
</TableRow>
</TableLayout>
继承我的活动：
package de.retowaelchli.filterit;
import android.app.Activity;
import android.os.Bundle;
public class ADFilterConfigActivity extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.autodelete_config);
}
}
我需要做什么才能将输入文本保存到我的数据库中。 Thx提前。
答案 0 :(得分：2)
1. In activity's OnCreate() define your editText views from xml file.
edtTextName = (EditText) findViewById(R.id.ADConfigName);
edtTextKeyword = (EditText) findViewById(R.id.ADConfigKeyword);
2. get string from editText views .
likes,
String name = edtTextName.getText().toString();
String keyword = edtTextKeyword.getText().toString();
3. then using these values call your database's insert method. I think its
createADFilter( name,keyword,cache)
所以，简单。 ： - ）
我写这个程序bcoz我想要，自己用这个程序编码，然后实际上你可以知道如何在sqlite中连接数据库。避免复制粘贴。 日Thnx。
答案 1 :(得分：1)
package de.retowaelchli.filterit;
import android.app.Activity;
import android.os.Bundle;
public class ADFilterConfigActivity extends Activity {
ADFilterDBAdapter db_conn;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.autodelete_config);
try{
db_conn.openDataBase();
}
catch(SQLException sqle)
{
System.out.println("error in opening data : "+sqle);
}
EditText mEditText=(EditText)findViewById(R.id.ADConfigName);
mEditText.setOnKeyListener(new OnKeyListener() {
@Override
public boolean onKey(View v, int keyCode, KeyEvent event) {
System.out.println("The key pressed onkeylistenere is having code: "+keyCode);
System.out.println("The key pressed onkeylistenere is having event: "+event);
showResults();
return false;
}
});
}
private static void showResults()
{
String texts = mEditText.getText().toString();
db_conn.createADFilter(text, "any", "any");
}
}