我可以得到圆形的中心点,所以我想在圆形的中心点周围绘制一些按钮,如图所示http://i.6.cn/cvbnm/50/97/b0/e7ed11251c3069fea4130c74b3ecb10c .png ,你能给我一些建议,链接到例子会更有用.这是我的代码
编辑:
public class drawCirPicture extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(new SampleView(this));
}
private static class SampleView extends View {
private Bitmap mBitmap;
public SampleView(Context context) {
super(context);
setFocusable(true);
InputStream is = context.getResources().openRawResource(android.R.drawable.sym_call_outgoing);
mBitmap = BitmapFactory.decodeStream(is);
}
@Override protected void onDraw(Canvas canvas) {
canvas.drawColor(Color.GRAY);
Paint p = new Paint();
float centerY = 200;
float centerX=130;
double alpha = 0,wedge=0;
double PI=Math.PI;
float x,y; …我想post数据如下：
{
"user_id":"14545646",
"list":["4545645","4545645","4545645","4545645"]
}
我使用了以下Retrofit方法：
interface DeleteOrder {
@FormUrlEncoded
@POST("/api/shop/deleteOrder.json")
void getPoJoDeleteOrder(@Field("user_id") String user_id, @Field("list") String[] list,Callback<PoJoDeleteOrder> callback);
}
这是正确的方法吗？
我遇到麻烦当我使用canvas.clipPath,它显示锯齿,它看起来不顺利,我知道如果我使用Paint,我可以使用mPaint.setFlags(Paint.ANTI_ALIAS_FLAG),这可以抗锯齿,但在我的代码中,我不能用油漆.
public static void drawCurrentPageArea(Canvas canvas, Bitmap bitmap) {
//cebakhja
canvas.save();
canvas.clipPath(getPath5(), Region.Op.XOR);
canvas.drawBitmap(bitmap, 0, 0, null);
canvas.restore();
}
public static Path getPath5()
{
Path mPath5 = new Path();
mPath5.moveTo(ptc.x, ptc.y);
mPath5.quadTo(pte.x, pte.y, ptb.x,ptb.y);
mPath5.lineTo(pta.x, pta.y);
mPath5.lineTo(ptk.x, ptk.y);
mPath5.quadTo(pth.x, pth.y, ptj.x,ptj.y);
mPath5.lineTo(ptf.x, ptf.y);
mPath5.close();
return mPath5;
}
你可以看到我使用canvas.drawBitmap(bitmap,0,0,null); paint是null.如果我需要添加一个颜料,你能有一些建议吗？图为http://i.6.cn/cvbnm/36/5c/20/5d8d20e3bafe432d792793509f99131e.jpg
编辑:我设置的绘画为空,但不是效果
在我看来,我有一个大矩形,矩形可以移动.当矩形移动到某个地方时,我想在大矩形的中心绘制图像.我的问题是我无法将图像的中心放在矩形的中心.我用了:
canvas.drawBitmap(rotatedBitmap, matrix, paint)
canvas.drawBitmap(rotatedBitmap, left, top, paint)
但我找不到canvas.drawBitmap(rotateBitmap,centerX,centerY,paint),所以我想使用矩阵,但矩阵也从左边和顶部开始移动图像,而不是从中心移动,你能给出一些线索来绘制图片在矩形的中心？
我有一个用于绘制图像的SurfaceView,我想将它们叠加到手机相机的实时信息中.我已经在相机预览surfaceview上阅读了Overlay图像, 以及如何在android上的相机使用的surfaceview上绘制叠加层
public class TestCameraOverlayActivity extends Activity {
Bitmap bitmap;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
Preview mPreview = new Preview(this);
DrawOnTop mDraw = new DrawOnTop(this);
bitmap = BitmapFactory.decodeResource(getResources(), R.drawable.icon);
setContentView(mPreview);
addContentView(mDraw, new LayoutParams (LayoutParams.WRAP_CONTENT,
LayoutParams.WRAP_CONTENT));
}
class DrawOnTop extends View {
public DrawOnTop(Context context) {
super(context);
}
@Override
protected void onDraw(Canvas canvas) {
Paint paint = new Paint();
paint.setStyle(Paint.Style.STROKE);
paint.setColor(Color.BLACK);
canvas.drawText("Test Text", 10, 10, …我想做一个任务管理器软件，我想检查所有使用 android.intent.action.BOOT_COMPLETED 的应用程序，并且我还想在移动设备开始运行时禁用自动启动。我不知道，如果我需要 root 权限才能完成它，可能会收到任何建议
我的代码是:
- (void) socketIO:(SocketIO *)socket didReceiveEvent:(SocketIOPacket *)packet
{
NSLog(@"didReceiveEvent(),%@",packet.data );
SysNotification *sysNotification=[GlobalVariable parseSysNotificationWithString:packet.data];
UILocalNotification *alarm = [[UILocalNotification alloc] init];
if (alarm) {
alarm.fireDate = [NSDate date];
alarm.timeZone = [NSTimeZone defaultTimeZone];
alarm.repeatInterval = 0;
alarm.soundName = UILocalNotificationDefaultSoundName;
alarm.alertBody = @"Test message...";
NSDictionary *infoDic = [NSDictionary dictionaryWithObject:@"name" forKey:@"key"];
alarm.userInfo = infoDic;
[[UIApplication sharedApplication] presentLocalNotificationNow:alarm];
}
}
我想当我点击状态栏上的UILocalNotification,我可以来一些视图controller.how做什么？谢谢
我正在使用存折，并且有一些输入值，如下所示：
{
"key" : "terms",
"label" : "terms_contions",
"value" : "1.aaaaaaa
2.bbbbbbb
3.ccccccc
4.ddddddd
}
我使用“enter”键，我想换行以查看该值，但传递显示错误。
所以我将其修改为：
{
"key" : "terms",
"label" : "terms_contions",
"value" : "1.aaaaaaa 2.bbbbbbb 3.ccccccc 4.ddddddd
}
一切都很好，但我不想 1. 2. 3. 4.一行。我想要4条线。我怎样才能做到这一点？
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
static NSString *CellIdentifier = @"NotificationViewCell";
CardViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if(cell==nil){
NSArray *nib = [[NSBundle mainBundle] loadNibNamed:@"CardViewCell" owner:self options:nil];
cell = [nib objectAtIndex:0];
cell.contentView.backgroundColor=[UIColor clearColor];
[ModelClass addSublayer:cell.contentView];
cell.cellbg.layer.cornerRadius = 8;
cell.cellbg.layer.masksToBounds = YES;
cell.cellbg.layer.borderWidth = 1;
cell.cellbg.layer.borderColor = [[UIColor grayColor] CGColor];
cell.logoImage.layer.cornerRadius = 8;
cell.logoImage.layer.masksToBounds = YES;
cell.logoImage.layer.borderWidth = 1;
cell.logoImage.layer.borderColor = [[UIColor grayColor] CGColor];
Merchant *merchantList= [self.cardListArr objectAtIndex:indexPath.row];
cell.nameLab.text=merchantList.name;
NSLog(@"merchantList.myloyalty.points=%@",merchantList.myloyalty.points);
// NSLog(@"memberNO=%@",merchantList.myloyalty.memberNO);
cell.integralLab.text=[NSString stringWithFormat:NSLocalizedString(@"points_dot", @"") ,[merchantList.myloyalty.points intValue]];
cell.cardNumberLab.text=[NSString stringWithFormat:@"%@%@",NSLocalizedString(@"ID", nil), merchantList.myloyalty.memberNO];
if(![ModelClass …我读过在我的XCode数据模型上发生任何变化后,我继续"保存操作失败"
错误代码:
This NSPersistentStoreCoordinator has no persistent stores. It cannot perform a save operation.
(null)
(
0 CoreFoundation 0x36aeb8a7 __exceptionPreprocess + 186
1 libobjc.A.dylib 0x32f02259 objc_exception_throw + 32
2 CoreData 0x353a8fe7 -[NSPersistentStoreCoordinator executeRequest:withContext:error:] + 282
3 CoreData 0x35411287 -[NSManagedObjectContext save:] + 522
4 myshine 0x001a1e59 _mh_execute_header + 1293913
5 myshine 0x0006cacd _mh_execute_header + 27341
6 myshine 0x000aa829 _mh_execute_header + 280617
7 myshine 0x000abe07 _mh_execute_header + 286215
8 myshine 0x0009a12b _mh_execute_header + 213291
9 myshine 0x00099fb3 _mh_execute_header + 212915
10 …