activity-finish

问题 I'm working on an app that has two activities, Main and Info. The App is started with the MainActivity and when you click a button the InfoActivity slides in from the right side. When you click another button, InfoActivity shall slide out to the right side again and Main returns. This is how I implemented the Animation and the Button Click in MainActivity: buttonInfo.setOnClickListener(new View.OnClickListener() { public void onClick(View v) { Intent i = new Intent(getApplicationContext(),

问题 I'm working on an app that has two activities, Main and Info. The App is started with the MainActivity and when you click a button the InfoActivity slides in from the right side. When you click another button, InfoActivity shall slide out to the right side again and Main returns. This is how I implemented the Animation and the Button Click in MainActivity: buttonInfo.setOnClickListener(new View.OnClickListener() { public void onClick(View v) { Intent i = new Intent(getApplicationContext(),

问题 I have a question concerning the finish() method of an activity in android studio: I have this simple code: public class MainActivity extends AppCompatActivity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); findViewById(R.id.button).setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { finish(); } }); } } In my activity_main I simply have a button. When I click on

问题 Im implementing an app that shows some Twitter data, when is working on wifi is ok, but on 3g crashes, I have come to the conclusion that is because the NSURLRequest that fetchs the data that populates the table takes longer to load so the table ends up calling an object for key, when the keys havent even loaded, So the question is, - how can I know when the NSURLRequest finished loading? [I checked the Class Reference but didnt see it??] Thanks a lot! 回答1: The delegate methods are invoked on

问题 Im implementing an app that shows some Twitter data, when is working on wifi is ok, but on 3g crashes, I have come to the conclusion that is because the NSURLRequest that fetchs the data that populates the table takes longer to load so the table ends up calling an object for key, when the keys havent even loaded, So the question is, - how can I know when the NSURLRequest finished loading? [I checked the Class Reference but didnt see it??] Thanks a lot! 回答1: The delegate methods are invoked on

问题 I'm getting some weird effects after I force close my app. When the app is closed with finish(), everything is fine. I have some variables saved in a sharedPreferences so when the app is loaded again, it can restore those variables into the UI. However, if I force close the app and THEN try to continue where it had left off, some variables start "acting funny". By that I mean (in onCreate) I check to see if a string, loaded from the sharedPreferences, equals a value (crunched down version):

问题 Is there any particular situation when it is handy to not quit the Activity immediately after calling finish() ? (in other way, why is this method not quitting the Activity immediately from design?) http://developer.android.com/reference/android/app/Activity.html#finish() UPDATE When I say immediately, I mean, right in time you will call the finish() and of course, cleaning up with saving instance bundle, onStop and onDestroy methods doesn't count. To see an example what am I talking about,

问题 I succeed to show Android Date Settings by calling : startActivityForResult(new Intent(android.provider.Settings.ACTION_DATE_SETTINGS), 0); but I don't know how to exit, there is no cancel/update button, no back button or navigation bar. Would anyone know how to leave this screen? I use Android Things 0.5.1-devpreview on RPi3 with this example code. 回答1: In order to close Android 's settings app you can either send a back button press event adb shell input keyevent 4 or force close the

问题 I succeed to show Android Date Settings by calling : startActivityForResult(new Intent(android.provider.Settings.ACTION_DATE_SETTINGS), 0); but I don't know how to exit, there is no cancel/update button, no back button or navigation bar. Would anyone know how to leave this screen? I use Android Things 0.5.1-devpreview on RPi3 with this example code. 回答1: In order to close Android 's settings app you can either send a back button press event adb shell input keyevent 4 or force close the

问题 I have Two Activity one is InventoryActivity and Second is StoneDetailActivity . In my InventoryActivity have RecycleView In RecycleView Button Click I start the StoneDetailActivity using StartActivityForResult below code. Intent stonedetailIntent = new Intent(context, typeof(StoneDetailActivity)); stonedetailIntent.PutExtra("SearchitemObject", stoneJson); stonedetailIntent.PutExtra("position", position); context.StartActivityForResult(stonedetailIntent, 1000); context