Android Studio 0.4.5
Android documentation for creating custom dialog boxes: http://developer.android.com/guide/topics/ui/dialogs.html
If you want a custom dialog, you can instead display an Activity as a dialog instead of using the Dialog APIs. Simply create an activity and set its theme to Theme.Holo.Dialog in
the <activity> manifest element:
<activity android:theme="#android:style/Theme.Holo.Dialog" >
However, when I tried this I get the following exception:
java.lang.IllegalStateException: You need to use a Theme.AppCompat theme (or descendant) with this activity
I am supporting the following, and I can't using something greater than 10 for the min:
minSdkVersion 10
targetSdkVersion 19
In my styles I have the following:
<!-- Base application theme. -->
<style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
And in my manifest I have this for the activity:
<application
android:allowBackup="true"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<activity
android:theme="#android:style/Theme.Holo.Light.Dialog"
android:name="com.ssd.register.Dialog_update"
android:label="#string/title_activity_dialog_update" >
</activity>
Creating the dialog box like this was something I was hopping to do, as I have already completed the layout.
Can anyone tell me how I can get around this problem?
The reason you are having this problem is because the activity you are trying to apply the dialog theme to is extending ActionBarActivity which requires the AppCompat theme to be applied.
Update: Extending AppCompatActivity would also have this problem
In this case, change the Java inheritance from ActionBarActivity to Activity and leave the dialog theme in the manifest as it is, a non Theme.AppCompat value
The general rule is that if you want your code to support older versions of Android, it should have the AppCompat theme and the java code should extend AppCompatActivity. If you have *an activity that doesn't need this support, such as you only care about the latest versions and features of Android, you can apply any theme to it but the java code must extend plain old Activity.
NOTE: When change from AppCompatActivity (or a subclass, ActionBarActivity), to Activity, must also change the various calls with "support" to the corresponding call without "support". So, instead of getSupportFragmentManager, call getFragmentManager.
All you need to do is add android:theme="#style/Theme.AppCompat.Light" to your application tag in the AndroidManifest.xml file.
Copying answer from #MarkKeen in the comments above as I had the same problem.
I had the error stated at the top of the post and happened after I added an alert dialog. I have all the relevant style information in the manifest. My problem was cured by changing a context reference in the alert builder - I changed:
new android.support.v7.app.AlertDialog.Builder(getApplicationContext())
to:
new android.support.v7.app.AlertDialog.Builder(this)
And no more problems.
If you are using the application context, like this:
final AlertDialog.Builder builder = new AlertDialog.Builder(getApplicationContext());
change it to an activity context like this:
final AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this);
min sdk is 10. ActionBar is available from api level 11. So for 10 you would be using AppCompat from the support library for which you need to use Theme.AppCompat or descendant of the same.
Use
android:theme="#style/Theme.AppCompat" >
Or if you dont want action bar at the top
android:theme="#style/Theme.AppCompat.NoActionBar">
More info #
http://developer.android.com/guide/topics/ui/actionbar.html
Edit:
I might have misread op post.
Seems op wants a Dialog with a Activity Theme. So as already suggested by Bobbake4 extend Activity instead of ActionBarActivity.
Also have a look # Dialog Attributes in the link below
http://grepcode.com/file/repository.grepcode.com/java/ext/com.google.android/android/4.4_r1/frameworks/base/core/res/res/values/themes.xml/
I was experiencing this problem even though my Theme was an AppCompat Theme and my Activity was an AppCompatActivity (or Activity, as suggested on other's answers). So I cleaned, rebuild and rerun the project.
(Build -> Clean Project ; Build -> Rebuild Project ; Run -> Run)
It may seem dumb, but now it works great!
Just hope it helps!
This is what fixed it for me: instead of specifying the theme in manifest, I defined it in onCreate for each activity that extends ActionBarActivity:
#Override
protected void onCreate(Bundle savedInstanceState) {
setTheme(R.style.MyAppTheme);
super.onCreate(savedInstanceState);
setContentView(R.layout.my_activity_layout);
...
}
Here MyAppTheme is a descendant of Theme.AppCompat, and is defined in xml. Note that the theme must be set before super.onCreate and setContentView.
go to your styles and put the parent
parent="Theme.AppCompat"
instead of
parent="#android:style/Theme.Holo.Light"
Change the theme of the desired Activity. This works for me:
<activity
android:name="HomeActivity"
android:screenOrientation="landscape"
android:theme="#style/Theme.AppCompat.Light"
android:windowSoftInputMode="stateHidden" />
In my case i have no values-v21 file in my res directory. Then i created it and added in it following codes:
<style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
<!-- Customize your theme here. -->
<item name="colorPrimary">#color/colorPrimary</item>
<item name="colorPrimaryDark">#color/colorPrimaryDark</item>
<item name="colorAccent">#color/colorAccent</item>
</style>
Just Do
new AlertDialog.Builder(this)
Instead of
new AlertDialog.Builder(getApplicationContext())
I had such crash on Samsung devices even though the activity did use Theme.AppCompat.
The root cause was related to weird optimizations on Samsung side:
- if one activity of your app has theme not inherited from Theme.AppCompat
- and it has also `android:launchMode="singleTask"`
- then all the activities that are launched from it will share the same Theme
My solution was just removing android:launchMode="singleTask"
If you need to extend ActionBarActivity you need on your style.xml:
<!-- Base application theme. -->
<style name="AppTheme" parent="AppTheme.Base"/>
<style name="AppTheme.Base" parent="Theme.AppCompat.Light.DarkActionBar">
<!-- Customize your theme here. -->
If you set as main theme of your application as android:Theme.Material.Light instead of AppTheme.Base then you’ll get an “IllegalStateException:You need to use a Theme.AppCompat theme (or descendant) with this activity” error.
I had the same problem, but it solved when i put this on manifest: android:theme="#style/Theme.AppCompat.
<application
android:allowBackup="true"
android:icon="#drawable/icon"
android:label="#string/app_name_test"
android:supportsRtl="true"
android:theme="#style/Theme.AppCompat">
...
</application>
for me a solution, after trying all solutions from here, was to change
<activity
android:name="com.github.cythara.MainActivity"
android:label="Main">
</activity>
to include a theme:
<activity
android:name="com.github.cythara.MainActivity"
android:theme="#style/Theme.AppCompat.NoActionBar"
android:label="Main">
</activity>
In my case such issue was appear when i tried to show Dialog.
The problem was in context, I've use getBaseContext() which theoretically should return Activity context, but appears its not, or it return context before any Theme applied.
So I just replaced getBaseContexts() with "this", and now it work as expected.
Dialog.showAlert(this, title, message,....);
You have came to this because you want to apply Material Design in your theme style in previous sdk versions to 21. ActionBarActivity requires AppThemeso if you also want to prevent your own customization about your AppTheme, only you have to change in your styles.xml (previous to sdk 21) so this way, can inherit for an App Compat theme.
<style name="AppTheme" parent="android:Theme.Holo.Light.DarkActionBar">
for this:
<style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
I had an activity with theme <android:theme="#android:style/Theme.Dialog"> used for showing dialog in my appWidget and i had same problem
i solved this error by changing activity code like below:
#Override
protected void onCreate(Bundle savedInstanceState) {
setTheme(R.style.Theme_AppCompat_Dialog); //this line i added
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_dialog);
}
Make sure you are using an activity context while creating a new Alert Dialog and not an application or base context.
for me was solution to use ContextThemeWrapper:
private FloatingActionButton getFAB() {
Context context = new android.support.v7.view.ContextThemeWrapper(getContext(), R.style.AppTheme);
FloatingActionButton fab = new FloatingActionButton(context);
return fab;}
from Android - How to create FAB programmatically?
I had this problem as well and what I did to fix it, AND still use the Holo theme was to take these steps:
first I replaced this import:
import android.support.v7.app.AppCompatActivity;
with this one:
import android.app.Activity;
then changed my extension from:
public class MyClass extends AppCompatActivity {//...
to this:
public class MyClass extends Activity {//...
And also had to change this import:
import android.support.v7.app.AlertDialog;
to this import:
import android.app.AlertDialog;
and then you can use your theme tag in the manifest at the activity level:
android:theme="#android:style/Theme.Holo.Dialog" />
and lastly, (unless you have other classes in your project that has to use v7 appCompat) you can either clean and rebuild your project or delete this entry in the gradle build file at the app level:
compile 'com.android.support:appcompat-v7:23.2.1'
if you have other classes in your project that has to use v7 appCompat then just clean and rebuild the project.
In case the AndroidX SplashScreen library brought you here ...
This is because Theme.SplashScreen also has no R.styleable.AppCompatTheme_windowActionBar:
if (!a.hasValue(R.styleable.AppCompatTheme_windowActionBar)) {
a.recycle();
throw new IllegalStateException(
"You need to use a Theme.AppCompat theme (or descendant) with this activity.");
}
This requires switching the theme to the postSplashScreenTheme, before calling super():
#Override
protected void onCreate(Bundle savedInstanceState) {
/* When switching the theme to dark mode. */
if (savedInstanceState != null) {
this.setTheme(R.style.AppTheme);
}
super.onCreate(savedInstanceState);
/* When starting the Activity. */
if (savedInstanceState == null) {
SplashScreen.installSplashScreen(this);
}
}
Then the Theme.SplashScreen from AndroidManifest.xml won't interfere.
Also quite related: When using Theme.MaterialComponents, there's a bridge theme contained, which works as substitute for Theme.AppCompat: Theme.MaterialComponents.DayNight.NoActionBar.Bridge.
This Bridge theme works despite Theme.MaterialComponents not inherits from Theme.AppCompat:
<?xml version="1.0" encoding="utf-8"?>
<resources>
<style name="AppTheme" parent="Theme.MaterialComponents.DayNight.NoActionBar.Bridge" />
<style name="AppTheme.SplashScreen" parent="Theme.SplashScreen" />
</resources>
You have many solutions to that error.
You should use Activity or FragmentActivity instead of ActionbarActivity or AppCompatActivity
If you want use ActionbarActivity or AppCompatActivity, you should change in styles.xml Theme.Holo.xxxx to Theme.AppCompat.Light (if necessary add to DarkActionbar)
If you don't need advanced attributes about action bar or AppCompat you don't need to use Actionbar or AppCompat.
In Android manifest just change theme of activity to AppTheme as follow code snippet
<activity
android:name=".MainActivity"
android:label="#string/app_name"
android:theme="#style/AppTheme">
</activity>
In my experiences the problem was the context where I showed my dialog.
Inside a button click I instantiate an AlertDialog in this way:
builder = new AlertDialog.Builder(getApplicationContext());
But the context was not correct and caused the error. I've changed it using the application context in this way:
In declare section:
Context mContext;
in the onCreate method
mContext = this;
And finally in the code where I need the AlertDialog:
start_stop = (Button) findViewById(R.id.start_stop);
start_stop.setOnClickListener( new View.OnClickListener()
{
#Override
public void onClick(View v)
{
if (!is_running)
{
builder = new AlertDialog.Builder(mContext);
builder.setMessage("MYTEXT")
.setCancelable(false)
.setPositiveButton("SI", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
Task_Started = false;
startTask();
}
})
.setNegativeButton("NO",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
dialog.cancel();
}
});
AlertDialog alert = builder.create();
alert.show();
}
}
}
This is the solution for me.
I was getting this same problem. Because i was creating custom navigation drawer. But i forget to mention theme in my manifest like this
android:theme="#style/Theme.AppCompat.NoActionBar"
As soon i added the above the theme to my manifest it resolved the problem.
I have faced same problem.
If you are providing context to any class or method then provide YourActivityName.this instead of getApplicationContext().
Do this
builder = new AlertDialog.Builder(YourActivity.this);
Instead of
builder = new AlertDialog.Builder(getApplicationContext());
Change your theme style parent to
parent="Theme.AppCompat"
This worked for me ...
This one worked for me:
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<activity
android:name=".MainActivity"
android:label="#string/app_name"
android:theme="#style/Theme.AppCompat.NoActionBar">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
Your Activity is extending ActionBarActivity which requires the AppCompat.theme to be applied.
Change from ActionBarActivity to Activity or FragmentActivity, it will solve the problem.
If you use no Action bar then :
android:theme="#android:style/Theme.Light.NoTitleBar.Fullscreen"
Basically, I have an app with two Activities.
#1 - MainActivity
This has a solid black background and a button.
When the button is pressed TransparentActivity should be presented.
#2 - TransparentActivity
I want this to be transparent (so the phones normal UI can be seen through).
I've tried using the following code:
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setTheme(android.R.style.Theme_Translucent);
setContentView(R.layout.activity_trick);
}
But it causes the app to crash with an NullPointerException.
Try1:
Make super.onCreate(savedInstanceState); call after setTheme(android.R.style.Theme_Translucent);. So do as:
setTheme(android.R.style.Theme_Translucent);
super.onCreate(savedInstanceState);
Try 2:
If that doesn't work, I find the following way easiest to make my activity transparent:
<activity android:name=".your.activity.declaration.here"
android:theme="#android:style/Theme.Translucent.NoTitleBar" />
Basically add android:theme="#android:style/Theme.Translucent.NoTitleBar" to your activity declaration in manifest. I can see that you are trying to do a similar thing programatically but by specifying it in manifest never crashed for me. If it does, then there might be other reasons.
Hope it helps.
AppCompatActivity hasn't the Theme_Translucent(maybe the Theme_Translucent is null),you should create your own style.
In any application the add/edit will be comparatively having lesser inputs. I have seen that the application, esp., calendar, are using clever strategy to show these as simple dialog, so that the user may not notice that there is empty space in the designed form
As shown below
My question is, how to make it happen?
What I'm doing is I extend DialogFragment:
public class AboutFragment extends DialogFragment { ... }
I also have an activity that contains that fragment. And when the dialog/activity needs to be called, this method decides how to display it:
public static void showAbout(Activity parent) {
if (isTablet) {
AboutFragment aboutFragment = AboutFragment.newInstance();
aboutFragment.setStyle(DialogFragment.STYLE_NORMAL, R.style.DialogTheme);
DialogUtils.showDialog(parent, aboutFragment);
} else {
Intent aboutIntent = new Intent(parent, AboutActivity.class);
parent.startActivity(aboutIntent);
}
}
How to decide whether it is a tablet, is totally up to you.
This technique is explained in the documentation.
In my opinion the best approach here is to use
<!-- Theme for a window without an action bar that will be displayed either full-screen
on smaller screens (small, normal) or as a dialog on larger screens
(large, xlarge). -->
"android:Theme.Holo.Light.DialogWhenLarge.NoActionBar"
The best/easiest solution I've found is to always use an Activity, and based on screensize (and version), change your Theme parent.
in res/values/themes.xml
<style name="Detail.Theme" parent="#android:style/Theme.Holo.Light" >
...
</style>
and in res/values-large/themes.xml
<style name="Detail.Theme" parent="#android:style/Theme.Holo.Light.DialogWhenLarge" >
...
</style>
use Context.setTheme method to set them programmetically. As the doc says
this should be called before any views are instantiated in the Context
(for example before calling.
So, to switch between themes need to call setTheme before onCreate
public void onCreate(Bundle savedInstanceState) {
// check screen size
setTheme(dialogTheme);
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_second);
}
As #StinePike answered, setting a dialog theme programatically doesn't do any use (to me), as it shows a wierd black screen behind the dialog, rather than a dimmed background (as shown in the question). This is obviously a bug.
Instead of trying to set it programatically, or in style.xml, and pretty much everywhere except for AndroidManifest.xml, I did the reverse, which has worked for me.
(the solution which I took from the marvelous solution of the above issue)
The simplest solution (that works) as follows:
1. Make the activity a dialog by default through AndroidManifest.xml:
e.g., in the AndroidManifest.xml:
<activity
android:name="com.example.MyActivity"
android:label="#string/title_activity_mine"
android:theme="#android:style/Theme.DeviceDefault.Dialog">
...
</activity>
2. On starting the activity, set the theme to default if device is not a tablet.
if (!(isTablet(this)) {
setTheme(defaultTheme);
}
super.onCreate(savedInstanceState);
...
Note:
solution will work with custom styles defined in style.xml.
Ref:
How to detect device is Android phone or Android tablet?
Dialog with transparent background in Android
Issue 4394 - android - setTheme() does not work as expected
PS: final app on tablet and phone is as follows:
Use a DailogFragment and then control how its shown with setShowsDialog()
I feel like I must be missing something crazy. I am converting my code written to work with ABS (and it did work), and switching it to use the native ActionBar. I set the min SDK to 14 and switched things out for the framework versions, now I can't get the ActionBar to exist.
My Activity:
public class HomeActivity extends Activity {
#Override
protected void onCreate(#CheckForNull Bundle icicle) {
super.onCreate(icicle);
getWindow().requestFeature(Window.FEATURE_ACTION_BAR);
}
}
My AndroidManifest:
<uses-sdk android:minSdkVersion="14" android:targetSdkVersion="17"/>
...
<activity android:launchMode="singleTop" android:name=".ui.HomeActivity" android:theme="#android:style/Theme.Holo">
<intent-filter>
<action android:name="android.intent.action.MAIN"/>
<category android:name="android.intent.category.LAUNCHER"/>
</intent-filter>
<meta-data android:name="target device" android:value="universal"/>
</activity>
My Robolectric Test:
#RunWith(RobolectricTestRunner.class)
public class HomeActivityTest {
#Test
public void testActionBarDisplay() {
// Given
final HomeActivity activity_under_testing = new HomeActivity();
// When
activity_under_testing.onCreate(null);
// Then
assertThat(activity_under_testing.getActionBar())
.hasDisplayOptions(ActionBar.DISPLAY_SHOW_HOME
|ActionBar.DISPLAY_SHOW_TITLE
|ActionBar.DISPLAY_USE_LOGO);
}
}
I'm using FEST-Android for the assertThat (couldn't possibly be the issue).
The issue:
Tests run: 1, Failures: 1, Errors: 0, Skipped: 0, Time elapsed: 7.563 sec <<< FAILURE!
testActionBarDisplay(com.imminentmeals.android.base.ui.HomeActivityTest) Time elapsed: 6.588 sec <<< FAILURE!
java.lang.AssertionError: expecting actual not to be null
at com.imminentmeals.android.base.ui.HomeActivityTest.testActionBarDisplay(HomeActivityTest.java:28)
I should add that I'm using Robolectric 2.0 Alpha 2. I skipped the test, and packaged my apk, and the ActionBar seems to work fine, so I'm feeling like this must be a Robolectric issue? But I thought it should work fine with native Android since it was running native Android code.
This question is rather old but I will post my solution in case someone faces the same problem.
I was facing the same problem as Dandre, where I was using Robolectric 2.3, minSDK 16, and using the native ActonBar and yet getActionBar() kept returnign null. The solution was to ensure my style was referring to a theme which explicitly mentions ActionBar. In my case,I was using Theme.Light. By changing the theme to Theme.Holo.Light.DarkActionBar, I got it to work. I believe Dandre had the same issue, given that his theme was Theme.Holo.
I find it weird that the theme was the cause of the problem, given that it does not affect my app. Maybe someone can explain why?
if you use ActionBarDrawerToggle
put getActionBar() inside of onDrawerOpened(View drawerView){}
public void onDrawerOpened(View drawerView) {
title = getActionBar().getTitle();
getActionBar().setTitle("Open Drawer");
}
Extend ActionBarActivity in place of FragmentActivity.
ActionBarActivity internally extends FragmentActivity, so no need to worry.
Use android.support.v7 type ActionBar Activity.
import android.support.v7.app.ActionBarActivity;
Use getSupportActionBar() in place of getActionBar()
Check in your Manifest file, if NoTitleBar theme is used then remove that line
android:theme="#android:style/Theme.NoTitleBar" // remove this line
If still problem is not resolved then use FEATURE_ACTION_BAR above the setContentView() method.
requestWindowFeature(Window.FEATURE_ACTION_BAR);
In your Manifest you should make the theme Theme.Sherlock instead of Theme.Holo.
You need to extend SherlockActivity or SherlockFragmentActivity.
To return the ActionBar call getSupportActionBar when you're using ABS.
Also, you don't need to call Window.FEATURE_ACTION_BAR. Using the Holo theme is enough.
From the ActionBarSherlock docs
Action Bar API
When creating an activity to use the action bar on all versions of
Android, you must declare your activity to extend any of the activity
classes that start with 'Sherlock' (e.g., SherlockActivity,
SherlockFragmentActivity). Interaction with the action bar is handled
by calling getSupportActionBar() (instead of getActionBar()).
You can read the docs here
You can read more about styling ABS here
Here is a pic of android applicationbar i like ( I mean the part where settings is written on, not sure if applicationbar is the right name :) )
http://oi50.tinypic.com/ehwwpc.jpg
Some apps i have downloaded also have the exact same bar so im guessing its a predefined theme but when i make a project (theme.holo) then my applicationbar is just totally black.
So my question is how do i get the same project bar?
Thank you!
Edit:
I found that all apps are opensoruce and i looked out settings apps manifest for android 4.0.4, same as mine.
Here it is: https://android.googlesource.com/platform/packages/apps/Settings/+/android-4.0.4_r2.1/AndroidManifest.xml
Whats strange is that it uses the same theme i do: android:theme="#android:style/Theme.Holo"
... but still the titlebar is different. There must be another attribute somewhere that defines the titlebar? Does anyone have an idea? :)
The title of the activity can be defined in the Manifest file, and it should be android:label property. For example:
<activity
android:name=".MainActivity"
android:label="#string/TitleBarText" />
TitleBarText is the android string resource that contains the name of the title.
If you wish to do it from code, you can just do the following in the onCreate method:
#Override
public void onCreate(Bundle savedInstanceState) {
setTitle("Title Bar Name");
setContentView(R.layout.activity_main);
}
To create a custom title bar, refer to: this and this