SharedPreferences.Editor sharedata = getSharedPreferences("data", 0).edit(); 
sharedata.putString("name","shenrenkui"); 
sharedata.commit(); 

SharedPreferences sharedata = getSharedPreferences("data", 0); 
String data = sharedata.getString("name", null); 
Log.i(TAG,"data="+data); 

//創(chuàng)建文件
file = new File(FILE_PATH , FILE_NAME);
file.createNewFile();
//打開文件file的OutputStream
out = new FileOutputStream(file);
String infoToWrite = "紙上得來終覺淺，絕知此事要躬行";
//將字符串轉換成byte數(shù)組寫入文件
out.write(infoToWrite.getBytes());
//關閉文件file的OutputStream
out.close();
//打開文件file的InputStream
in = new FileInputStream(file);
//將文件內容全部讀入到byte數(shù)組
int length = (int)file.length();
byte[] temp = new byte[length];
in.read(temp, 0, length);
//將byte數(shù)組用UTF-8編碼并存入display字符串中
display = EncodingUtils.getString(temp,TEXT_ENCODING);
//關閉文件file的InputStream
in.close();
} catch (IOException e) {
//將出錯信息打印到Logcat
Log.e(TAG, e.toString());
this.finish();
}
//從資源讀取
InputStream is=getResources().getRawResource(R.raw.文件名)

1， adb shell
2， cd /data/data/com.android.providers.media/databases
3， ls(查看com.android.providers.media下面的數(shù)據(jù)庫)
4， sqlite3 internal.db
5， .help---看看如何操作
6， .table列出internal數(shù)據(jù)中的表
7， select * from albums;
DatabaseHelper mOpenHelper;
private static final String DATABASE_NAME = "dbForTest.db";
private static final int DATABASE_VERSION = 1;
private static final String TABLE_NAME = "diary";
private static final String TITLE = "title";
private static final String BODY = "body";
private static class DatabaseHelper extends SQLiteOpenHelper {
DatabaseHelper(Context context) {
super(context, DATABASE_NAME, null, DATABASE_VERSION);
}
@Override
public void onCreate(SQLiteDatabase db) {
String sql = "CREATE TABLE " + TABLE_NAME + " (" + TITLE
+ " text not null, " + BODY + " text not null " + ");";
Log.i("haiyang:createDB=", sql);
db.execSQL(sql);
}
@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
}
}
/**
* 重新建立數(shù)據(jù)表
*/
private void CreateTable() {
SQLiteDatabase db = mOpenHelper.getWritableDatabase();
String sql = "CREATE TABLE " + TABLE_NAME + " (" + TITLE
+ " text not null, " + BODY + " text not null " + ");";
Log.i("haiyang:createDB=", sql);
try {
db.execSQL("DROP TABLE IF EXISTS diary");
db.execSQL(sql);
setTitle("數(shù)據(jù)表成功重建");
} catch (SQLException e) {
setTitle("數(shù)據(jù)表重建錯誤");
}
}
/**
* 刪除數(shù)據(jù)表
*/
private void dropTable() {
SQLiteDatabase db = mOpenHelper.getWritableDatabase();
String sql = "drop table " + TABLE_NAME;
try {
db.execSQL(sql);
setTitle("數(shù)據(jù)表成功刪除：" + sql);
} catch (SQLException e) {
setTitle("數(shù)據(jù)表刪除錯誤");
}
}
/**
* 插入兩條數(shù)據(jù)
*/
private void insertItem() {
SQLiteDatabase db = mOpenHelper.getWritableDatabase();
String sql1 = "insert into " + TABLE_NAME + " (" + TITLE + ", " + BODY
+ ") values('haiyang', 'android的發(fā)展真是迅速啊');";
String sql2 = "insert into " + TABLE_NAME + " (" + TITLE + ", " + BODY
+ ") values('icesky', 'android的發(fā)展真是迅速啊');";
try {
Log.i("haiyang:sql1=", sql1);
Log.i("haiyang:sql2=", sql2);
db.execSQL(sql1);
db.execSQL(sql2);
setTitle("插入兩條數(shù)據(jù)成功");
} catch (SQLException e) {
setTitle("插入兩條數(shù)據(jù)失敗");
}
}
/**
* 刪除其中的一條數(shù)據(jù)
*/
private void deleteItem() {
try {
SQLiteDatabase db = mOpenHelper.getWritableDatabase();
db.delete(TABLE_NAME, " title = 'haiyang'", null);
setTitle("刪除title為haiyang的一條記錄");
} catch (SQLException e) {
}
}
/**
* 在屏幕的title區(qū)域顯示當前數(shù)據(jù)表當中的數(shù)據(jù)的條數(shù)。
*/
private void showItems() {
SQLiteDatabase db = mOpenHelper.getReadableDatabase();
String col[] = { TITLE, BODY };
Cursor cur = db.query(TABLE_NAME, col, null, null, null, null, null);
Integer num = cur.getCount();
setTitle(Integer.toString(num) + " 條記錄");
}

* Content Provider Name : Intended Data
* Browser : Browser bookmarks, Browser history, etc.
* CallLog : Missed calls, Call datails, etc.
* Contacts : Contact details
* MediaStore : Media files such as audio, Video and Images
* Settings : Device Settings and Preferences

<standard_prefix>://<authority>/<data_path>/<id>

Uri allCalls = Uri.parse("content://call_log/calls");
Cursor c = managedQuery(allCalls, null, null, null, null);