我在使用XML创建一个简单的圆角矩形时遇到了麻烦.每当我尝试将"角落"元素添加到自定义形状时,我得到:
在android.view.View.View.draw(View.java)的android.graphics.drawable.RedientDrawable.draw(GradientDrawable.java:314)上的android.graphics.Path.addRoundRect(Path.java:514)的java.lang.UnsupportedOperationException 6520)...
RES/dawable/rounded_rectangle.xml:
<shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="rectangle">
<solid android:color="#ffffff"/>
<stroke android:width="3dp"
android:color="#ff000000"/>
<padding android:left="1dp"
android:top="1dp"
android:right="1dp"
android:bottom="1dp"/>
<corners android:bottomRightRadius="7dp" android:bottomLeftRadius="7dp"
android:topLeftRadius="7dp" android:topRightRadius="7dp"/>
</shape>
使用上面的形状的简单layout.xml:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_height="fill_parent"
android:layout_width="fill_parent">
<View android:id="@+id/View01"
android:background="@drawable/rounded_rectangle"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
</View>
</RelativeLayout>
Fyi,我正在尝试为Android 2.1编译,我已经安装了Eclipse和Android SDK的所有最新更新.这个形状是我在另一个网站上看到的东西的直接副本,但由于某种原因它不想为我工作.
谢谢.
我想在中的图像上显示文本Listview。我能够看到图像和文本，但文本将显示在左上角。我想在每个图像的每个文本上显示它。下面是我的代码。请帮我
import 'dart:async';
import 'dart:convert';
import 'package:cached_network_image/cached_network_image.dart';
import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:http/http.dart' as http;
Future<List<Photo>> fetchPhotos(http.Client client) async {
final response = await client.get('url here');
return compute(parsePhotos, response.body);
}
// A function that will convert a response body into a List<Photo>
List<Photo> parsePhotos(String responseBody) {
final parsed = json.decode(responseBody);
return (parsed["data"]["categoryList"] as List)
.map<Photo>((json) => new Photo.fromJson(json))
.toList();
}
class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
SystemChrome.setEnabledSystemUIOverlays([]);
return new MyHomePage();
}
} …flutter 有没有办法将文件本地保存在 iPhone 上，以便这些文件可以在文件应用程序中使用？
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.videoview);
mVideoView = (VideoView) findViewById(R.id.videoView1);
scanCode = getIntent().getExtras().getString("ScanCode");
new GetVideoUrlAsyn().execute();
mVideoView.setOnCompletionListener(new OnCompletionListener() {
@Override
public void onCompletion(MediaPlayer mp) {
// TODO Auto-generated method stub
startActivity(new Intent(getBaseContext(),
PostVideoMenuActivity.class));
}
});
}
private class GetVideoUrlAsyn extends AsyncTask<Void, Void,Void> {
@Override
protected Void doInBackground(Void... params) {
// TODO Auto-generated method stub
String URL = "http://www.storybehindthestore.com/sbtsws/service/saveinfo.asmx/StoryScanHistorySave";
WebServiceCall webservice = new WebServiceCall();
nameValuePairs = new ArrayList<NameValuePair>(4);
nameValuePairs.add(new BasicNameValuePair("iSiteID","1"));
nameValuePairs.add(new BasicNameValuePair("sVideoURL",scanCode));
Log.e("scancode",""+ scanCode); …当我在itemonsetchenge listner中取消选中复选框时,我想删除所有元素.这是我的代码
checkbox_timeslot.clear();
chk.setOnCheckedChangeListener(new OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
// TODO Auto-generated method stub
String chetimeslot;
if(isChecked){
chetimeslot = (String)chk.getTag();
checkbox_timeslot.add(chetimeslot);
Log.e("array value", ""+checkbox_timeslot);
Log.e("checked slo value", ""+chetimeslot);
}else{
checkbox_timeslot.add("");
Log.e("else array value", ""+checkbox_timeslot);
}
}
});
"checkbox_timeslot"是我的字符串数组list.i想要删除复选框中的元素是未选中的,并且从复选框列表中选中时添加项目.如何可能有帮助？
private void openChart(){
double[] data = {0.2, 1.11, 100 };
// Creating an XYSeries for Income
XYSeries expenseSeries = new XYSeries("");
// Adding data to Income and Expense Series
for(int i=0;i<data.length;i++){
expenseSeries.add(i,data[i]);
}
// Creating a dataset to hold each series
XYMultipleSeriesDataset dataset = new XYMultipleSeriesDataset();
// Adding Expense Series to dataset
dataset.addSeries(expenseSeries);
// Creating XYSeriesRenderer to customize expenseSeries
XYSeriesRenderer expenseRenderer = new XYSeriesRenderer();
expenseRenderer.setColor(Color.RED);
expenseRenderer.setFillPoints(false);
expenseRenderer.setLineWidth(2);
// Creating a XYMultipleSeriesRenderer to customize the whole chart
XYMultipleSeriesRenderer multiRenderer = new …我想用这个(888)777-7777格式的电话号码.我的数字格式为"888-777-7777".我把我的代码放在editTextChangedListener中.如何显示所需的格式？
edt_clientphone.addTextChangedListener(new TextWatcher() {
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
// TODO Auto-generated method stub
boolean flag = true;
String eachBlock[] = edt_clientphone.getText().toString().split("-");
for (int i = 0; i < eachBlock.length; i++)
{
if (eachBlock[i].length() > 3)
{
Log.v("data","cc"+flag + eachBlock[i].length());
}
}
if(flag){
edt_clientphone.setOnKeyListener(new OnKeyListener() {
@Override
public boolean onKey(View v, int keyCode, KeyEvent event) {
// TODO Auto-generated method stub
if (keyCode == KeyEvent.KEYCODE_DEL)
keyDel = 1;
return false;
}
});
if …for(int j=0; j<ServiceProviderCal.ap_title_arr.size();j++)
{
if(ServiceProviderCal.ap_title_arr.get(position).isEmpty())
{
Holder.relative.setBackgroundColor(android.graphics.Color.rgb(255, 255,255));
}
else
{
Holder.txtNote1.setText(notes.get(position)+" For:");
Holder.txtNote2.setText(des.get(position));
Holder.relative.setBackgroundColor(android.graphics.Color.rgb(255, 255,0));
//Log.e("Notes...", ""+notes);
}
}