我是android的新手并且是我的第一个应用程序.
我有一个问题解决 R.layout.main
主要是在我的res/layout中自动生成的.
我已经进口了 android.R
但它仍然没有解决"主要"
我有一个listView与这样的自定义适配器
@Override
public View getView(int position, View convertView, ViewGroup parent)
{
View view = convertView;
ViewHolder viewHolder = new ViewHolder();
if (convertView == null)
{
view = inflator.inflate(R.layout.question_adapter_layout, parent, false);
viewHolder.moreLayout = (LinearLayout) view.findViewById(R.id.extraOptions);
viewHolder.reportBtn = (Button) view.findViewById(R.id.more_report);
viewHolder.twitterBtn = (Button) view.findViewById(R.id.more_twitter);
viewHolder.googleBtn = (Button) view.findViewById(R.id.more_google);
viewHolder.fbBtn = (Button) view.findViewById(R.id.more_fb);
viewHolder.deleteBtn = (Button) view.findViewById(R.id.more_delete);
view.setTag(viewHolder);
}
else
viewHolder = (ViewHolder) view.getTag();
viewHolder.moreBtn.setOnClickListener(new View.OnClickListener()
{
@Override
public void onClick(View v)
{
Utilities.vibrate(mContext);
if (viewHolder.moreLayout.getVisibility() == View.GONE)
viewHolder.moreLayout.setVisibility(View.VISIBLE);
else
viewHolder.moreLayout.setVisibility(View.GONE);
}
}); …作为jquery函数的结果,我遵循JSON STRINg
{"error":"","status":"1","data":[{"id":"6","ringSetName":"DFWR0319 - 18K White Gold 30RD.45ctw Pave Halo Engagement Ring(does not include center diamond)","ringSetCategories":"Halo","ringThumbNailImagePath":"http:\/\/thevowapp.com\/iphoneapp\/ringthumbs\/DI004_R_Thumb_White_WBG_00001.jpg","ringOnHandImagePath":"http:\/\/thevowapp.com\/iphoneapp\/handrings\/DI004_R_handring_White_WBG_00001.png","ringSetClientName":"Cherie Dori","ringDescription":"This angel's halo has 30 precision set round brilliant diamonds that wrap around your center diamond. *center diamond sold separately, mounting can be modified for any size or shape center diamond","ringHDir":"http:\/\/thevowapp.com\/iphoneapp\/ringmodels\/NL\/DI004_IPad\/IPad_DI004_H_White_000_Diamond_E_800x600.zip","ringRDir":"http:\/\/thevowapp.com\/iphoneapp\/ringmodels\/NL\/DI004_IPad\/IPad_DI004_R_White_000_Diamond_E_800x600.zip","ringPicDir":"http:\/\/thevowapp.com\/iphoneapp\/ringmodels\/NL\/DI004_IPad\/IPad_DI004_RPic_White_000_Diamond_E_800x600.zip{}http:\/\/thevowapp.com\/iphoneapp\/ringmodels\/NL\/DI004_IPad\/IPad_DI004_RPic_Yellow_000_Diamond_E_800x600.zip","forteenk":"860","eighteenk":"930","platinium":"1,211.00","ringSetKaratQuality":"18K","videos":"http:\/\/vimeo.com\/81502294, http:\/\/vimeo.com\/81502295\r\n","ringWebFolder":"DI004_FWR0319"}]}
现在数据总是一个带有1个ELEMENT的数组.使用此代码我怎样才能获得价值ringWebFolder
.done(function( msg )
{
if( msg.status=="1")
{
var path = 'DiadoriAllrings/'+ msg.data.ringWebFolder; // IT SAYS UNDEFINED
path = path.concat("/No_Logo");
alert(path);
initSwf(path);
} else {
alert("Error : "+msg.error);
}
jQuery('#sliderloading').addClass('hide');
});
我正在使用retrofit1旧式
@GET("/loginUser")
public Call<Response> login(
@Query("email") String email,
@Query("password") String password,
Callback<Response> callback);
现在我不想获得"User"类但是我想得到一个String响应.
以前我们使用"响应"但是在改造2中没有响应,
如何在不使用任何json解析的情况下从服务器获取字符串响应或全身响应？
我正在使用以下代码来制作旋转轮。
@Override
public void onDraw(Canvas canvas)
{
super.onDraw(canvas);
for (int i = 0; i < segmentColors.length; i ++)
{
drawDataSet(canvas, i);
}
canvas.drawCircle(getWidth()/2, getHeight()/2, getWidth() - getWidth()/2 - dpToPx(5), mTransparentCirclePaint);
}
protected void drawDataSet(Canvas canvas, int position)
{
int color = segmentColors[position];
float mainArcAngle = ((float) 360/ (float)segmentColors.length);
Paint paint = new Paint();
paint.setStyle(Paint.Style.FILL);
if ( position%2 == 0)
paint.setColor(color);
else
paint.setColor(Color.parseColor("#009f2f"));
RectF rect = new RectF(0, 0, getWidth(), getWidth());
canvas.drawArc(rect, (mainArcAngle * position), mainArcAngle, true, paint);
TextPaint mTextPaint = …我有一个组件定义为
export default function MyComp({
...someprops
}) {
const [data, setData] = useState([]);
const searchRef = useRef();
return (
<Box>
{!showEmptyState ? (
<LzSearch
onUpdate={(items) => setData(items)}
ref={searchRef}
/>
) : (
<Box />
)}
</Box>
);
}
其中 LzSearch 定义为
const LzSearch = forwardRef((props, ref) => {
const {
...rest
} = props;
const classes = useStyles();
const hashData = {};
console.log(hashData);
function updateHashData() {
// Function is called at some point after getting data from API
setHashData(...);
onUpdate(...) …我想在我的flex应用程序中添加一个gif图像.然而,它没有显示动画.任何人都知道如何使gif图像在flex中工作
import mx.managers.PopUpManager;
private function onCreationCompleted():void
{
mx.managers.PopUpManager.centerPopUp(this);
}
]]>
</fx:Script>
<s:Image x="127" y="137" source="@Embed('assets/loading.gif')" width="87" height="85"/>
<s:Label x="88" y="73" text="Loading... Please wait" width="164" height="56" verticalAlign="middle" textAlign="center"/>
提前问候
我是Android新手.如何从中TextView选择任何项目时动态更改文本Spinner.
问候.
我正在使用的代码
private Spinner paidIn = null;
paidIn = (Spinner) findViewById(R.id.paidIn);
ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource(
this, R.array.currencies, android.R.layout.simple_spinner_item);
adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
paidIn.setAdapter(adapter);
paidIn.setOnItemSelectedListener(new OnItemSelectedListener() {
@Override
public void onItemSelected(AdapterView<?> arg0, View arg1,int arg2, long arg3)
{
setStrTypeExpense(); // my Function, i want to call to change Textview
}
}
我正在使用以下查询
$abilityPts = xxx;
$statement = $conn->prepare('UPDATE players SET ability = (ability + $abilityPts) WHERE id = :myPlayerId');
但是它给出了误差..
$abilityPts column not found
我该如何解决这个问题？
{"error":"SQLSTATE[42S22]: Column not found: 1054 Unknown column '$abilityPts' in 'field list'"}
我是swift的新手并试图解决一个非常基本的逻辑问题
if (textField == self.cvv && cvv.text.length == 4 && !string.isEmpty)
{
return false;
}
这是我的代码
&&确实存在然而我收到错误
Couldn't find an overload for the &&
什么以及如何使用逻辑运算？