Develop Reference

How to test androidx.fragment.app.Fragment.onCreateOptionsMenu()?

I'm having trouble converting some of my old Robolectric 3.x tests to the new style (also converted to AndroidX at the same time).
My setup:
- Android Gradle Plugin 3.2.1
- Robolectric 4.1
Some relevant config (gradle.properties):
android.useAndroidX=true
android.enableJetifier=false
Note, I am not using android.enableUnitTestBinaryResources (as it does not work on Windows in this version of the Android Gradle Plugin).
My fragment (snippet):
#Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
super.onCreateOptionsMenu(menu, inflater);
logger.debug(String.format("onCreateOptionsMenu(menu=[%s], inflater=[%s])", menu, inflater));
inflater.inflate(R.menu.key_details_actions, menu);
key_details_actions.xml (full):
<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
>
<item
android:id="#+id/action_handin"
android:icon="#drawable/ic_return_key_wrapper"
android:title="#string/action_key_hand_in"
android:visible="false"
app:showAsAction="ifRoom|withText"
/>
</menu>
ic_return_key_wrapper.xml (full):
<?xml version="1.0" encoding="utf-8"?>
<!-- https://stackoverflow.com/questions/35813199/how-can-i-use-vectordrawable-with-the-android-toolbar -->
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:drawable="#drawable/ic_return_key"/>
</selector>
My test does the following (crashes):
final KeyDetailsActivity activity = Robolectric.buildActivity(KeyDetailsActivity.class)
.create(instanceState).start().get();
activity.getSupportFragmentManager().beginTransaction()
.add(R.id.container_key_fragment_details, fragment).commit();
final Context context = fragment.requireContext();
final Menu menu = new RoboMenu(context);
fragment.onCreateOptionsMenu(menu, new MenuInflater(context));
Stacktrace:
android.content.res.Resources$NotFoundException: File D:\Git\xxx\application\build\intermediates\merged-not-compiled-resources\debug\drawable\ic_return_key_wrapper.xml from drawable resource ID #0x7f0800d5
at android.content.res.Resources.loadDrawable(Resources.java:2096)
at org.robolectric.util.ReflectionHelpers.callInstanceMethod(ReflectionHelpers.java:283)
at org.robolectric.internal.bytecode.ShadowImpl.directlyOn(ShadowImpl.java:56)
at org.robolectric.shadow.api.Shadow.directlyOn(Shadow.java:56)
at org.robolectric.shadows.ShadowResources.loadDrawable(ShadowResources.java:231)
at android.content.res.Resources.loadDrawable(Resources.java)
at android.content.res.Resources.getDrawable(Resources.java:700)
at org.robolectric.fakes.RoboMenuItem.setIcon(RoboMenuItem.java:107)
at android.view.MenuInflater$MenuState.setItem(MenuInflater.java:399)
at android.view.MenuInflater$MenuState.addItem(MenuInflater.java:451)
at android.view.MenuInflater.parseMenu(MenuInflater.java:188)
at android.view.MenuInflater.inflate(MenuInflater.java:110)

You also should put to android DSL next lines:
testOptions {
unitTests {
returnDefaultValues = true
includeAndroidResources = true
}
}

How to set spinner dropdown list position in android?

I want to place a dropdown list on the right. Can I do this in a standard spinner?

I think Image represented is PopUp menu, To achieve the same see the code below,
To define popup menu, we need to create a new folder menu inside of our project resource directory (res/menu/) and add a new XML (popup_menu.xml) file to build the menu.
<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android" >
<item android:id="#+id/first_item"
android:title="first" />
<item android:id="#+id/second_item"
android:title="second" />
<item android:id="#+id/third_item"
android:title="third" />
</menu>
In your Activity,
public void showPopup(View v) {
PopupMenu popup = new PopupMenu(this, v, Gravity.RIGHT);
MenuInflater inflater = popup.getMenuInflater();
inflater.inflate(R.menu.popup_menu, popup.getMenu());
popup.show();
}
Now Override onMenuItemClick to provide functions to each item.
#Override
public boolean onMenuItemClick(MenuItem item) {
switch (item.getItemId()) {
case R.id.first_item:
// do your code
return true;
case R.id.second_item:
// do your code
return true;
case R.id.third_item:
// do your code
return true;
default:
return false;
}

Error: Unknown Member Menu

I am trying to create a popup menu, but i am getting this error, saying "unknown member 'menu' of com.popup.trial.R
What should I do?
my xml file:
<menu xmlns:android="http://schemas.android.com/apk/res/android" >
<item
android:id="#+id/one"
android:title="One"/>
<item
android:id="#+id/two"
android:title="Two"/>
</menu>
and my java:
#Override
public void onClick(View v) {
PopupMenu popup = new PopupMenu(MainActivity.this, settings2);
popup.getMenuInflater().inflate(R.menu.popup_menu, popup.getMenu());
popup.setOnMenuItemClickListener(new PopupMenu.OnMenuItemClickListener() {
public boolean onMenuItemClick(MenuItem item) {
Toast.makeText(MainActivity.this,"You Clicked : " + item.getTitle(),Toast.LENGTH_SHORT).show();
return true;
}
});
popup.show();
}
});

The R class is code-generated for you by the Android build tools when you build your project.
Clean your project or Build your project
reference : Beginner Android why is "id" is "Unknown member" with R.id?
follow this link for other example. : https://www.javatpoint.com/android-popup-menu-example

What's wrong with this XML file? (keeps crashing aapt.exe)

I've had problems with my app and eclipse so I saved my code, deleting eclipse, and re-downloaded and extracted. Immediately after I added the XML file to res/menu, I got a windows message saying aapt.exe has stopped working; I'd been getting this message constantly before. I've researched it before so I know that if an XML file isn't written correctly, aapt.exe will keep crashing. Only thing is, I don't see the problem with the file.
createlgmenu.xml (used as a popup menu for a button event):
<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android" >
<item
android:id="#+id/Create_List"
android:title="#string/Create_List"/>
<item
android:id="#+id/Create_Food_Group"
android:title="#string/Create_Food_Group"/>
</menu>
|
|
Other files:
I have practically no code in my mainactivity.java:
package com.example.groceryrunner;
import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.PopupMenu;
public class MainActivity extends Activity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
public void onCreateLGClick(View v) {
final int id = v.getId();
switch (id) {
case R.id.CreateLG:
//findViewById(R.id.GetStarted).setVisibility(View.INVISIBLE);
createLGPopup(v);
break;
/*case R.id.ListsButton:
findViewById(R.id.GetStarted).setVisibility(View.INVISIBLE);
createLGMenu(v);
break;*/
}
}
public void createLGPopup(View v) {
PopupMenu LGMenu = new PopupMenu(this, v);
LGMenu.getMenuInflater().inflate(R.menu.createlgmenu, LGMenu.getMenu());
LGMenu.setOnMenuItemClickListener(new PopupMenu.OnMenuItemClickListener() {
#Override
public boolean onMenuItemClick(MenuItem item) {
String choice = new String((String) item.getTitle());
if (choice == "Create_List") {
//createListDialog();
}
else if (choice == "Create_Group") {
//createListDialog();
}
return false;
}
});
LGMenu.show();
}
}
Only one button so far in my activity_main.xml:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="#dimen/activity_vertical_margin"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
tools:context=".MainActivity" >
<Button
android:id="#+id/CreateLG"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:layout_marginLeft="37dp"
android:layout_marginTop="21dp"
android:text="+"
android:textSize="40sp" />
</RelativeLayout>
In case you want to see my menu.xml:
<menu xmlns:android="http://schemas.android.com/apk/res/android" >
<item
android:id="#+id/action_settings"
android:orderInCategory="100"
android:showAsAction="never"
android:title="#string/action_settings"/>
</menu>

If you are using the support library and a library project, then you need a custom namespace for the "showAsAction" tag for older platform versions.
So change this:
<menu xmlns:android="http://schemas.android.com/apk/res/android" >
<item
android:id="#+id/action_settings"
android:orderInCategory="100"
android:showAsAction="never"
android:title="#string/action_settings"/>
</menu>
To this:
<menu xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:custom="http://schemas.android.com/apk/res-auto" >
<item
android:id="#+id/action_settings"
android:orderInCategory="100"
custom:showAsAction="never"
android:title="#string/action_settings"/>
</menu>
Note that "custom" can be anything you want.

I think I've found my solution.
I had copied the xml and changed the items originally myself. So I deleted it and created it through Eclipse (right click on the res/menu folder > New > Other > Android XML File > Menu). I no longer seem to be getting the appt.exe error. I then added the items using Eclipse instead of writing or copying them myself.
The only difference in the two files is that the old one ended each item with this:
\>
And the one created by Eclipse uses this at the end of an item declaration:
></item>
As for Eclipse not recognizing my xml files, AdamM helped me find the solution to that problem as well:
1) I deleted the R import
2) Commented out the lines that were giving me errors in recognizing my xml files
3) Restarted Eclipse & Built All

How "onOptionsItemSelected" works for Fragments?

Menu Items getting disappeared in my app.
Initially i created menu items as follow. but menu getting disappeared in some android versions.
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
TabHelper tabHelper = getTabHelper();
CompatTab menuTab = tabHelper.newTab("menu").setText(
R.string.tab_section1).setIcon(R.drawable.home_icon).setTabListener(
new InstantiatingTabListener(this, MenuFragment.class));
tabHelper.addTab(menuTab);
CompatTab favTab = tabHelper.newTab("favourites").setText(
R.string.tab_section2).setIcon(R.drawable.favourites_icon).setTabListener(
new InstantiatingTabListener(this, FavouritesFragment.class));
tabHelper.addTab(favTab);
}
THIS ABOVE CODE WORKS FINE IN LATEST ANDROID 4.1.3 BUT FAILS TO DISPLAY IN 4.0.1 and 4.0.3
SEEMS TO BE SOME LAYOUT ISSUE.
TO RESOLVE i added menu xml as follow
<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android">
<item android:id="#+id/menuhome"
android:icon="#drawable/map_icon"
android:title="#string/tab_section1"
android:orderInCategory="1"
android:showAsAction="always|withText" />
<item android:id="#+id/menumap"
android:icon="#drawable/map_icon"
android:title="#string/tab_section2"
android:orderInCategory="2"
android:showAsAction="always|withText" />
and added onOptionItemSelected as follow
#Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case android.R.id.menuhome:
finish();
return true;
case R.id.menumap:
//ERROR
//HOW CAN I CALL FRAGMENT HERE.?
break;
default:
break;
}
return super.onOptionsItemSelected(item);
}