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04 2013 档案

a google website of android code

摘要：recently, i found a website that post many good artilce. many of them is valuable to read. here is the link: http://www.java2s.com/Code/Android/2D-Graphics/RotateBitmap.htm 阅读全文

posted @ 2013-04-15 12:48 slider 阅读(242) 评论(0) 推荐(0)

progressdialog not display

摘要：new AsyncTask<Void, Void, String>(){ ProgressDialog progressDialog; protected void onPreExecute() { progressDialog = new ProgressDialog(EditSelectedActivity.this); progressDialog.setMessage(getResources().getString(R.string.d_loading)); ... 阅读全文

posted @ 2013-04-03 15:22 slider 阅读(236) 评论(0) 推荐(0)

Draw with a Canvas

摘要：When you're writing an application in which you would like to perform specialized drawing and/or control the animation of graphics, you should do so by drawing through aCanvas. A Canvas works for you as a pretense, or interface, to the actual surface upon which your graphics will be drawn — it h 阅读全文

posted @ 2013-04-01 16:54 slider 阅读(286) 评论(0) 推荐(0)

findviewbyid return null for custom view

摘要：i invoke findViewById method like this:view view = LayoutInflater.from(this).inflate(R.layout.xxx,null);Customview myView = view.findviewbyid(R.id.xy);....setcontentView(view); but it keeps return null . after searchs, i found that i shoud call findviewbyid() before setcontentview method. you can... 阅读全文

posted @ 2013-04-01 10:55 slider 阅读(621) 评论(0) 推荐(0)