android-menu

问题 How to load menu depend on button was clicked? Any idea, solution? @Override public boolean onCreateOptionsMenu(final Menu menu) { menu.clear(); if(button.**isclicked**) { getMenuInflater().inflate(R.menu.menu_main, menu); } else { getMenuInflater().inflate(R.menu.test, menu); } return true; } 回答1: Put a boolean field in your activity and change whenever you click button . Depends if its true or false show or not your menu UPDATE //declare boolean boolean clicked=false; //my button clic

问题 How to load menu depend on button was clicked? Any idea, solution? @Override public boolean onCreateOptionsMenu(final Menu menu) { menu.clear(); if(button.**isclicked**) { getMenuInflater().inflate(R.menu.menu_main, menu); } else { getMenuInflater().inflate(R.menu.test, menu); } return true; } 回答1: Put a boolean field in your activity and change whenever you click button . Depends if its true or false show or not your menu UPDATE //declare boolean boolean clicked=false; //my button clic

问题 I have an options menu in my app, which has more than six items, so there is a "More" item that brings up the overflow menu. The menu is posted by the default menu triggers, and a custom trigger that invokes Activity.openOptionsMenu(). The menu itself is built from this resource file: <menu xmlns:android="http://schemas.android.com/apk/res/android"> <item android:id="@+id/mi_copy" android:title="Copy" android:icon="@drawable/copy"/> <item android:id="@+id/mi_paste" android:title="Paste"

问题 I have an options menu in my app, which has more than six items, so there is a "More" item that brings up the overflow menu. The menu is posted by the default menu triggers, and a custom trigger that invokes Activity.openOptionsMenu(). The menu itself is built from this resource file: <menu xmlns:android="http://schemas.android.com/apk/res/android"> <item android:id="@+id/mi_copy" android:title="Copy" android:icon="@drawable/copy"/> <item android:id="@+id/mi_paste" android:title="Paste"

问题 I had a problem setting up some fragment menu items in the ActionBar and I found a way to solve it, but I don't understand why it worked. I wanted to change the visibility in a menu item right after I inflated it from a menu xml file in onCreateOptionsMenu method. The code seems to work fine, but there's no visible effect. I solved the problem inflating the menu in onCreateOptionsMenu method but changing the visibility of it in onPrepareOptionsMenu method. What I want to know is why changing

问题 I am a newbie to android when I am going through a sample code for navigation drawer I found he called the method invalidateOptionsMenu() so I searched regarding its functionality but couldn't find an answer so can anyone please brief me its functionality and whenshould we use that. 回答1: This function tell android that it should redraw the menu. By default, once the menu is created, it won't be redrawn every frame (since that would be useless to redraw the same menu over and over again). You

问题 I am a newbie to android when I am going through a sample code for navigation drawer I found he called the method invalidateOptionsMenu() so I searched regarding its functionality but couldn't find an answer so can anyone please brief me its functionality and whenshould we use that. 回答1: This function tell android that it should redraw the menu. By default, once the menu is created, it won't be redrawn every frame (since that would be useless to redraw the same menu over and over again). You

问题 I am a newbie to android when I am going through a sample code for navigation drawer I found he called the method invalidateOptionsMenu() so I searched regarding its functionality but couldn't find an answer so can anyone please brief me its functionality and whenshould we use that. 回答1: This function tell android that it should redraw the menu. By default, once the menu is created, it won't be redrawn every frame (since that would be useless to redraw the same menu over and over again). You

问题 What are the two parameters Menu and menu in method onCreateOptionsMenu(Menu menu) and how to use this method. I have another question why this parameter is used in Intent intent = new Intent(this, DisplayMessageActivity.class); 回答1: Menu is just the type of the parameter menu. For example you can have a String type for a variable named string, dog, etc. And in this case there's a Menu type for a parameter named menu. You use onCreateOptionsMenu() to specify the options menu for an activity.

问题 What are the two parameters Menu and menu in method onCreateOptionsMenu(Menu menu) and how to use this method. I have another question why this parameter is used in Intent intent = new Intent(this, DisplayMessageActivity.class); 回答1: Menu is just the type of the parameter menu. For example you can have a String type for a variable named string, dog, etc. And in this case there's a Menu type for a parameter named menu. You use onCreateOptionsMenu() to specify the options menu for an activity.