How to make item visible only if statement boolean in android

Question

I have static constant top navigation menu with the following item

<item
    android:id="@+id/action_camera"
    android:enabled="true"
    app:showAsAction="always" />
<item
    android:id="@+id/action_gallery"
    android:enabled="true"
    app:showAsAction="always" />

and I have two class MainActivity and SecondActivity

I wanna make both item appear only if condition met

Exemple : If user clicked on second Activity display both item.

MainActivity

//action bar menu
 @Override
 public boolean onCreateOptionsMenu(Menu menu) {
     //inflate menu
     getMenuInflater().inflate(R.menu.top_navigation_menu, menu);
     return true;
 }
 //handle actionbar item clicks
 @Override
 public boolean onOptionsItemSelected(MenuItem item) {
     int id = item.getItemId();
     if (id == R.id.action_camera){
         //OpenCamera
     }
     if (id == R.id.action_gallery){
         //OpenGallery
     }
     return super.onOptionsItemSelected(item);
 }

matdev · Accepted Answer · 2019-11-18T16:14:19.117

2

You can do as follows:

 @Override
 public boolean onCreateOptionsMenu(Menu menu) {
     //inflate menu
     getMenuInflater().inflate(R.menu.top_navigation_menu, menu);

    MenuItem action_camera_menu_item = menu.findItem(R.id.action_camera);
    MenuItem action_gallery = menu.findItem(R.id.action_gallery);

    action_camera_menu_item.setVisible(conditionOK);
    action_gallery.setVisible(conditionOK);

    return true;
 }

edited Nov 18 '19 at 16:14

answered Nov 18 '19 at 15:21

matdev

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How do I replace conditionOk into secondActivity class onclick button – Nov 18 '19 at 15:32
You could add the conditionOk as an attribute of your Application class, or pass its value as a parcelable to your SecondActivity's onCreate() – matdev Nov 18 '19 at 15:36
1

Please just use action_camera_menu_item.setVisible(conditionOK); instead of "if" construct. Upvoted. – ror Nov 18 '19 at 16:08
1

Note: `invalidateOptionsMenu()` needs to be called if the condition updates at runtime. – Froyo Nov 18 '19 at 16:31

score 0 · Answer 2 · answered Nov 18 '19 at 15:20

0

Assuming your "condition" is available while onCreateOptionsMenu being called, you can get your menu item by ID like this menu.findItem(...) and then do setVisible(boolean visible) for it.

answered Nov 18 '19 at 15:20

ror

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How to make item visible only if statement boolean in android

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