alexa app white screen android

: toast.maketext (this, "Youclickadd ", Toast.length_short). Show (); break; caseR.id.remove_item: Toast.maketext (this, "Youclickremove", toast.length_short). Show (); break; default:break;} returntrue;}}PS: Start the app, you need to solve the screen after a while to start, to start the app will take some time.In fact, you can also set the lock

In our android development, we often use the screen size to determine the ui or other purposes.In some cases, incorrect values can be obtained by obtaining the width and height of the screen based on different models. (Unit differences and mobile phone manufacturers are different)Two days ago, it was found that 800*480 was taken from a 533*320 mobile phone in the

the view 3) center_inside The contents of the picture to the full center display, by proportionally reduced or the original size so that the picture length is equal to or less than the width of the View 4) Fit_center Zoom in or out of the picture to the width of the view, and then Center 5) Fit_star the picture proportionally to the width of the view and then to the top 6) fit_end enlarge or narrow the picture to the width of the view, Then at the bottom of the display 7) Fit_xy does

First of all, this is a lock screen application project source code, and has the function of recording gestures but unlike the traditional nine Gongge, even if the source has comments but so far I did not understand his gesture recording method, the project seems to use the GPS and five times to unlock the failure will send SMS to the designated mobile phone number, but I did not look at, Source has more detailed comments, is studying the lock

The application can not be separated from the server network interaction, but there is time in the network information bad time, we have to give users the prompt to make network settings, in our application generally there will be a Network load error (failure) of the page, there is an operation control, click can enter the mobile phone network settings interface, the code is simple:/**intent Object */Intent Intent = null;/** judge the version of the mobile phone system is more than 10 API is 3.