1618 questions
What criteria do you break down when you classify classes into normal packages on Android?Until now,activity.By screen.oooActivityfragment.by screen.oooFragmemntview.oooViewutil.oooUtiladapter.oooAdap...
Hi, everyone.When implementing messenger push.I didn't use Google push, but I used my own push. When implementing push, the client end has to be a kind of server.For TCP socket, you can turn the threa...
What is the difference between fill_parent and wrap_content?
You can take notes while using other applications, such as the badge function of one note, and I would like to know what function to use to display the badge at all times.
This is one of the typical questions that is frequently asked in hashcodeYou have created a new activity using the wizard according to the tutorial. NullPointerException occurred when a method call wa...
String a;a = 123;if(a == null){ Output string null}I did it like thisI put the string 123 in the string. If I check the null in the next line, it says null, is there something wrong?Can't I null-check...
LayoutInflater mLayoutInflater;I have a question while I was looking at Android open source.Many people put m at the beginning of the variable as above, and I wonder why.
To hide the layout located at the bottom and expand the scroll view when touching the scroll view at the topI used a method of reducing the weight. (I'm not sure if this is right because I'm a beginne...
You need to create a library with RxJava, which is also used for projects that apply it. So is there no problem using the same library on both sides?
There are two elements in the activity, EditText and ListView. When the activity is turned on, a cursor is created in EditText EditText.setSelected(false);I did it like this, but it's still like that...
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