I started to encounter this error when I upgraded the version of the project to androidx. I also upgraded the all implementation sdks. I upgraded min sdk from 16 to 19. Before making these upgrades, dark mode was working fine. After upgrading, if you start the application with dark mode selected, the application opens 2 times. How can I solve this problem?
MainActiviy ;
SwitchCompat nightmodeswitch ;
if (InıtAplıcation.getInstance().isNightModeEnabled()) {
AppCompatDelegate.setDefaultNightMode(AppCompatDelegate.MODE_NIGHT_YES);
} else {
AppCompatDelegate.setDefaultNightMode(AppCompatDelegate.MODE_NIGHT_NO);
getWindow().getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR);
}
@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);
nightmodeswitch = (SwitchCompat) findViewById(R.id.nightmodeswitch);
try {
if (AppCompatDelegate.getDefaultNightMode() == AppCompatDelegate.MODE_NIGHT_YES)
nightmodeswitch.setChecked(true);
nightmodeswitch.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
if (isChecked) {
InıtAplıcation.getInstance().setIsNightModeEnabled(true);
Intent intent = getIntent();
intent.addFlags(Intent.FLAG_ACTIVITY_NO_ANIMATION);
finish();
startActivity(intent);
} else {
InıtAplıcation.getInstance().setIsNightModeEnabled(false);
Intent intent = getIntent();
intent.addFlags(Intent.FLAG_ACTIVITY_NO_ANIMATION);
finish();
startActivity(intent);
}
}
});
}catch (Exception e){
}
return true;
}
InıtAplıcation ;
public class InıtAplıcation extends Application {
public static final String NIGHT_MODE = "NIGHT_MODE";
private boolean isNightModeEnabled = false;
private static InıtAplıcation singleton = null;
public static InıtAplıcation getInstance() {
if(singleton == null)
{
singleton = new InıtAplıcation();
}
return singleton;
}
@Override
protected void attachBaseContext(Context base) {
super.attachBaseContext(base);
MultiDex.install(this);
}
@Override
public void onCreate() {
super.onCreate();
FirebaseDatabase.getInstance().setPersistenceEnabled(true);
singleton = this ;
SharedPreferences mPrefs = PreferenceManager.getDefaultSharedPreferences(this);
this.isNightModeEnabled = mPrefs.getBoolean(NIGHT_MODE, false);
}
public boolean isNightModeEnabled() {
return isNightModeEnabled;
}
public void setIsNightModeEnabled(boolean isNightModeEnabled) {
this.isNightModeEnabled = isNightModeEnabled;
SharedPreferences mPrefs = PreferenceManager.getDefaultSharedPreferences(this);
SharedPreferences.Editor editor = mPrefs.edit();
editor.putBoolean(NIGHT_MODE, isNightModeEnabled);
editor.apply();
}
}
Values\Styles :
<style name="AppTheme.beyaztema" parent="Theme.AppCompat.Light.NoActionBar" >
<item name="windowActionBar">false</item>
<item name="colorPrimary">@color/colorappaydınlık</item>
<item name="colorPrimaryDark">#FFF</item>
<item name="colorAccent">@color/colorAccent</item>
</style>
Night\Styles :
<style name="AppTheme.beyaztema" parent="Theme.AppCompat.Light.NoActionBar" >
<item name="windowActionBar">false</item>
<item name="colorPrimary">#000</item>
<item name="colorPrimaryDark">#000</item>
<item name="colorAccent">#D81B60</item>
</style>
Android manifest :
<application
android:name=".InıtAplıcation"
android:allowBackup="true"
android:label="@string/app_name"
android:supportsRtl="true"
android:theme="@style/AppTheme.beyaztema">
gradle:
apply plugin: 'com.android.application'
apply plugin: 'com.google.gms.google-services'
apply plugin: 'com.google.firebase.crashlytics'
android {
compileSdkVersion 30
defaultConfig {
minSdkVersion 19
targetSdkVersion 30
testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
multiDexEnabled true
}
lintOptions {
checkReleaseBuilds false
abortOnError false
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
}
dependencies {
implementation fileTree(dir: 'libs', include: ['*.jar'])
implementation 'androidx.appcompat:appcompat:1.3.0'
implementation 'com.google.android.material:material:1.2.1'
implementation 'androidx.constraintlayout:constraintlayout:2.0.4'
androidTestImplementation 'androidx.test.ext:junit:1.1.3'
androidTestImplementation 'androidx.test.espresso:espresso-core:3.4.0'
testImplementation 'junit:junit:4.13.2'
implementation "androidx.cardview:cardview:1.0.0"
implementation "androidx.recyclerview:recyclerview:1.2.1"
implementation "androidx.recyclerview:recyclerview-selection:1.1.0"
implementation 'com.github.orangegangsters:swipy:1.2.3@aar'
implementation 'com.android.support.constraint:constraint-layout:1.1.3'
implementation "androidx.multidex:multidex:2.0.1"
implementation 'com.google.android.gms:play-services-ads:15.0.1'
implementation('com.google.apis:google-api-services-people:v1-rev2-1.21.0')
{
exclude module: 'guava-jdk5'
}
implementation 'com.squareup.retrofit2:retrofit:2.3.0'
implementation 'com.squareup.retrofit2:converter-gson:2.3.0'
implementation "io.grpc:grpc-okhttp:1.32.2"
}
apply plugin: 'com.google.gms.google-services'
Gradle:
buildscript {
repositories {
google()
jcenter()
}
dependencies {
classpath 'com.android.tools.build:gradle:7.1.2'
classpath 'com.google.gms:google-services:4.3.10'
classpath 'com.google.firebase:firebase-crashlytics-gradle:2.5.2'
}
}
allprojects {
repositories {
google()
jcenter()
}
}
task clean(type: Delete) {
delete rootProject.buildDir
}
CodePudding user response：
You are actually starting activity two times.
First time you manually recreated activity and AppCompatDelegate.setDefaultNightMode it also recreate activity to set default theme
That is why it is looks like activity is being created two times.
For this what I have done is applied theme in Application class. And didn't created the activity just applied theme
In My Application Class
if (preferencesValue!!.getBoolean("theme")) {
AppCompatDelegate.setDefaultNightMode(AppCompatDelegate.MODE_NIGHT_YES)
} else {
AppCompatDelegate.setDefaultNightMode(AppCompatDelegate.MODE_NIGHT_NO)
}
While changing theme in activity did the same on the change listener of Switch Button
Where you are creating intent and starting activity you just have to set Theme using AppCompatDelegate.setDefaultNightMode. Do not create Activity again.
CodePudding user response：
set android:configChanges to your activity which restarts after selecting Dark mode
android:configChanges="...|...|...|...|uiMode|...|..."
uiMode config handles dark mode UI changes on your app.
refer this documentation
Example for your activity in manifest
<activity
android:name=".HomeScreen"
android:configChanges="keyboard|keyboardHidden|orientation|screenLayout|uiMode|screenSize|smallestScreenSize"
android:launchMode="singleTop"
android:screenOrientation="sensorLandscape" />
CodePudding user response：
Just remove the Intent code because on the SwitchClick system by default recreate your app that's why no need to call recreate manually. your new code is below
nightmodeswitch.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
if (isChecked) {
InıtAplıcation.getInstance().setIsNightModeEnabled(true);
//or
// AppCompatDelegate.setDefaultNightMode(AppCompatDelegate.MODE_NIGHT_YES);
} else {
InıtAplıcation.getInstance().setIsNightModeEnabled(false);
//or
//AppCompatDelegate.setDefaultNightMode(AppCompatDelegate.MODE_NIGHT_NO);
}
and make SharedPrefrence code to save your current boolean of your DayNight Switch. If the problem is not solved yet, let me know