简单的模板
public class SPDataSession {
private static SPDataSession mSPDataSession;
private SharedPreferences.Editor mEditor;
private SharedPreferences mSP;
private SPDataSession(){
mEditor = App.context().getSharedPreferences("data",Context.MODE_PRIVATE).edit();
mSP = App.context().getSharedPreferences("data",Context.MODE_PRIVATE);
}
public static SPDataSession I(){
if (mSPDataSession == null){
mSPDataSession = new SPDataSession();
}
return mSPDataSession;
}
/**
* 保存第一次登入
*/
public void saveFirst(){
mEditor.putBoolean("first",true);
mEditor.apply();
}
/**
* 获取第一次登入记录
* @return
*/
public boolean getFirst(){
return mSP.getBoolean("first",false);
}
/**
* 保存设备识别id
* @param deviceId
*/
public void saveDeviceId(String deviceId){
mEditor.putString("deviceId",deviceId);
mEditor.apply();
}
/**
* 获取设备识别id
* @return
*/
public String getDeviceId(){
return mSP.getString("deviceId","");
}
/**
* 判断token为空
* @return true=空 false=不为空
*/
public boolean isTokenEmpty(){
if (TextUtils.isEmpty(mSP.getString("token",""))){
return true;
}
return false;
}
}