我们需要在许多地方获取用户对象,其中包含许多字段.登录后,我想保存/存储这些用户对象.我们怎样才能实现这种情况？
我不能这样存储它:
SharedPreferences.Editor prefsEditor = myPrefs.edit();
prefsEditor.putString("BusinessUnit", strBusinessUnit);
我有Button.当用户点击按钮时,有一些条件,条件不满足则需要显示Toast但不显示Toast Message ...
代码:已编辑
Button addMe = (Button)findViewById(R.id.addMe);
addMe.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
if(selectedReason.equals("--Select--")){
Log.i("TAG","-----");
Toast.makeText(getBaseContext(), "Reason can not be blank", Toast.LENGTH_SHORT).show();
}else if(selectedType.equals("--Select--")){
Toast.makeText(getParent(), "Discount type can not be blank", Toast.LENGTH_SHORT).show();
}else{
if(selectedType.equals("Value")){
if(spc_amount.getText().toString().equals("")){
Log.i("TAG","-----");
Toast.makeText(getBaseContext(), "Discount type can not be blank", Toast.LENGTH_SHORT).show();
}else{
if(Double.parseDouble(spc_amount.getText().toString()) > invoiceValue){
Toast.makeText(getBaseContext(), "Amonut can not be grater than invoice", Toast.LENGTH_SHORT).show();
}else{
Discount dis = new Discount();
dis.setCriteriaName(selectedReason);
dis.setDiscountValue(Double.parseDouble(spc_amount.getText().toString()));
spDisList.put(1,dis);
tl.removeAllViews();
loadTableLayout();
}
}
}
}
}
});
我曾尝试与语境getParent() …
我有Cordova应用程序,版本2.2.0.现在我要升级,我已经做了升级部分,升级后,应用程序图像不显示,它出现了空白屏幕.即使是闪屏也没来.这是我的代码
现在我达到了一定程度.我模拟的应用程序是关于SQLitePlugin问题.当Open数据库说db.cordova没有定义时
如何安装数据库 - 将数据库从db文件夹复制到android安装位置.这工作得很好.
这是我的数据库:
var DB = new Object();
DB.isDBSupported = false;
DB.isDBCreated = false;
DB.vocabDB = null;
DB.tables = ['userResponses', 'wordGroups', 'words', 'wordMapping', 'checkExists', 'patch_version']
DB.createdTables = 0;
DB.setupCallback = null;
DB.curQP = null;
DB.accountStatus = false;
DB.sfx = true;
DB.showWarnings = true;
DB.firstLaunch = false;
DB.initDB = function(callback) {
this.setupCallback = callback || function(){/*console.log("null function called")*/};
this.openDB();
var db = this;
if(!isPhoneGap()) {
_.delay(this.checkDB.bind(this), 500);
}
}
DB.checkDB = function() {
var db = …我有C++代码.该代码包含Windows移动GPS启用/禁用功能.我想从C#代码中调用该方法,这意味着当用户单击按钮时,C#代码应该调用C++代码.
这是用于启用GPS功能的C++代码:
#include "cppdll.h"
void Adder::add()
{
// TODO: Add your control notification handler code here
HANDLE hDrv = CreateFile(TEXT("FNC1:"), GENERIC_READ | GENERIC_WRITE,
0, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
if (0 == DeviceIoControl(hDrv, IOCTL_WID_GPS_ON, NULL, 0, NULL, 0, NULL, NULL))
{
RETAILMSG(1, (L"IOCTL_WID_RFID_ON Failed !! \r\n")); return;
}
CloseHandle(hDrv);
return (x+y);
}
这是头文件cppdll.h:
class __declspec(dllexport) Adder
{
public:
Adder(){;};
~Adder(){;};
void add();
};
如何使用C#调用该函数？
请问,有人可以帮我解决这个问题吗？
我正在做数据库同步.在sql server和sqlite之间下载数据.如果在sqlite中更新/插入记录时存在某些情况,则互联网连接速度慢或丢失然后需要回滚.这可能在此代码中或如何在此处使用事务处理.
public void insertTableRecords(String strTableName, String[] strToFields, String[] strValues){
DBAdapter dbAdapter = DBAdapter.getDBAdapterInstance(DownlaodTableActivity.this);
dbAdapter.openDataBase();
ContentValues initialValues = new ContentValues();
for(int i=0 ;i<strToFields.length;i++){
initialValues.put(strToFields[i],strValues[i]);
}
long n = dbAdapter.insertRecordsInDB(strTableName, null, initialValues);
System.out.println( " -- inserted status : --- " + n);
}
请帮我.
提前致谢...
我必须将一个活动传递给另一个活动:
我有SalesProduct enetity类:
public class Product implements Parcelable{
private double availableQuantity;
private double price;
private String productCode;
private String description;
private String description2;
private String productGroup;
private String alternateSearch;
private String productTypeCode;
private String nonStockItemFlag;
private String salableFlag;
private double weight;
private double qty;
private double grossValue;
private double value;
private ArrayList<Product> product;
public Product() {
}
public Product(Parcel in) {
this();
readFromParcel(in);
}
/*
* Constructor calls read to create object
*/
private void readFromParcel(Parcel in) {
in.readTypedList(product, Product.CREATOR); …我有Java GoogleMAP项目.这不是android项目.我之前使用KML完成了这个项目.现在谷歌已经改为JSON/XML.我需要在数据库-postgresql中的2个位置保存坐标.然后累计到我将在MAP中绘制路径.
现在的问题是:GeoPoint cannot be resolved to a type.我也这样导入import com.google.maps.GeoPoint;.这也显示为红色标记.请让我知道什么是问题或问题？
我谷歌吧.没运气.所有提到有关Android谷歌api设置.
不是android项目......
请帮我..
提前致谢.
可能重复:
Java:如何将List转换为Map
我有arrayList
ArrayList<Product> productList = new ArrayList<Product>();
productList = getProducts(); //Fetch the result from db
我想将ArrayList转换为HashMap,就像这样
HashMap<String, Product> s= new HashMap<String,Product>();
请帮我看看如何转换为HashMap.
当用户点击相机时,它会在几秒钟之后打开下一个屏幕 Fail to connect to camera service
它说 cannot connect to camera
这是我的代码:
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
View viewLoad = LayoutInflater.from(CameraActivity.this).inflate(R.layout.camera, null);
setContentView(viewLoad);
Bundle bundle = this.getIntent().getExtras();
seletctedRetailer = bundle.getString("RetailerName");
retailerCode = bundle.getString("RetailerCode");
Intent cameraIntent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
Bundle b = new Bundle();
b.putString("Activity", "RetailerOrderSActivity");
b.putString("RetailerName", seletctedRetailer);
b.putString("RetailerCode", retailerCode);
cameraIntent.putExtras(b);
getParent().getParent().setTitle("Image Capture");
startActivityForResult(cameraIntent,CAMERA_PIC_REQUEST);
vale +=1;
Button imgMCancel =(Button)findViewById(R.id.imgMCancel);
imgMCancel.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
Intent i = new Intent(getBaseContext(), CameraMainActivity.class);
Bundle bundle = new Bundle();
bundle.putString("Activity", …我创建了一个键盘.当用户输入数字时,它输入特定的EditText.But当用户点击Done键时,它没有进入setOnEditorActionListener但关闭键盘.
这是我的代码:
final EditText txtQty = new EditText(this);
txtQty.setHeight(1);
txtQty.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT, 42));
txtQty.setInputType(InputType.TYPE_CLASS_PHONE);
txtQty.setImeOptions(EditorInfo.IME_ACTION_DONE);
txtQty.setSelectAllOnFocus(true);
txtQty.setTextSize(9);
txtQty.setVisibility(View.VISIBLE);
txtQty.setHint("0.0");
txtQty.setHighlightColor(R.color.green);
tr.addView(txtQty);
txtQty.setOnEditorActionListener( new OnEditorActionListener() {
public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
Log.i("KeyBoard" ,"Inside the Edit Text");
if (actionId == EditorInfo.IME_ACTION_DONE ||actionId == EditorInfo.IME_ACTION_NEXT ) { ......}
这里给出actionId = 0和EditorInfo.IME_ACTION_NEXT = 5
当我通过Android Softkeyboard运行它的工作正常
txtQty.setOnEditorActionListener( new OnEditorActionListener() {
public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
Log.i("KeyBoard" ,"Inside the Edit Text");
Log.i("---EditorInfo.IME_ACTION_NEXT---" , EditorInfo.IME_ACTION_NEXT); …android ×7
java ×3
c# ×1
c++ ×1
c++-cli ×1
cordova ×1
google-maps ×1
javascript ×1
map ×1
sqlite ×1