Getting started with AndroidLayoutsGradle for AndroidRecyclerView onClickListenersNavigationViewIntentJSON in Android with org.jsonAndroid StudioResourcesData Binding LibraryExceptionsGetting Calculated View DimensionsAsyncTaskSharedPreferencesEmulatorMaterial DesignLint WarningsServiceStoring Files in Internal & External StorageWebViewProject SDK versionsRecyclerViewGoogle Maps API v2 for AndroidPorterDuff Mode9-Patch ImagesAndroid NDKRecyclerView DecorationsCamera 2 APIViewPagerCardViewHttpURLConnectionSQLiteADB (Android Debug Bridge)ButterKnifeSupporting Screens With Different Resolutions, SizesGlideRetrofit2DialogACRAGreenDAOFormatting StringsNotificationsAlarmManagerFragmentsHandlerCreating Custom ViewsBroadcastReceiverActivitySnackbarRuntime Permissions in API-23 +Logging and using LogcatVectorDrawable and AnimatedVectorDrawableTools AttributesToastInterfacesAnimatorsLocationTheme, Style, AttributeThe Manifest FileParcelableMediaPlayerMultidex and the Dex Method LimitData Synchronization with Sync AdapterMenuInstant Run in Android StudioPicassoBluetooth and Bluetooth LE APIRoboGuiceMemory LeaksUniversal Image LoaderVolleyWidgetsDate and Time PickersIntegrate Google Sign InIn-app BillingFloatingActionButtonContentProviderDagger 2RealmUnit testing in Android with JUnitAndroid VersionsWi-Fi ConnectionsSensorManagerLocalization with resources in AndroidProgressBarCustom FontsVibrationGoogle Awareness APIsText to Speech(TTS)UI LifecycleSpinnerData Encryption/DecryptionTesting UI with EspressoWriting UI tests - AndroidGreenRobot EventBusOkHttpEnhancing Android Performance Using Icon FontsHandling Deep LinksCanvas drawing using SurfaceViewFirebaseCrash Reporting ToolsCheck Internet ConnectivityFacebook SDK for AndroidUnzip File in AndroidAndroid Places APICreating your own libraries for Android applicationsGsonDevice Display MetricsTextViewListViewBuilding Backwards Compatible AppsLoaderProGuard - Obfuscating and Shrinking your codeDetect Shake Event in AndroidTypedef Annotations: @IntDef, @StringDefCapturing ScreenshotsMVP ArchitectureOrientation ChangesXposedSecurityPackageManagerImageViewGesture DetectionDoze ModeAndroid Sound and MediaSearchViewCamera and GalleryCallback URLTwitter APIsDrawablesColorsConstraintLayoutRenderScriptFrescoSwipe to RefreshAutoCompleteTextViewInstalling apps with ADBIntentServiceAdMobImplicit IntentsPublish to Play StoreFirebase Realtime DataBaseImage CompressionEmail ValidationKeyboardButtonTextInputLayoutBottom SheetsCoordinatorLayout and BehaviorsEditTextAndroid Paypal Gateway IntegrationFirebase App IndexingFirebase Crash ReportingDisplaying Google AdsAndroid Vk SdkLocalized Date/Time in AndroidCount Down TimerBarcode and QR code readingOtto Event BusTransitionDrawablePort Mapping using Cling library in AndroidCreating Overlay (always-on-top) WindowsExoPlayerInter-app UI testing with UIAutomatorMediaSessionSpeech to Text ConversionFileProviderPublish .aar file to Apache Archiva with GradleXMPP register login and chat simple exampleAndroid AuthenticatorRecyclerView and LayoutManagersAudioManagerJob SchedulingAccounts and AccountManagerIntegrate OpenCV into Android StudioSplit Screen / Multi-Screen ActivitiesThreadMediaStoreTime UtilsTouch EventsFingerprint API in androidMVVM (Architecture)BottomNavigationViewORMLite in androidYoutube-APITabLayoutRetrofit2 with RxJavaDayNight Theme (AppCompat v23.2 / API 14+)ShortcutManagerLruCacheJenkins CI setup for Android ProjectsZip file in androidVector DrawablesfastlaneDefine step value (increment) for custom RangeSeekBarGetting started with OpenGL ES 2.0+Check Data ConnectionAndroid Java Native Interface (JNI)FileIO with AndroidPerformance OptimizationRobolectricMoshiStrict Mode Policy : A tool to catch the bug in the Compile Time.Internationalization and localization (I18N and L10N)Fast way to setup Retrolambda on an android project.How to use SparseArrayFirebase Cloud MessagingShared Element TransitionsAndroid ThingsVideoViewViewFlipperLibrary Dagger 2: Dependency Injection in ApplicationsFormatting phone numbers with pattern.How to store passwords securelyAndroid Kernel OptimizationPaintAudioTrackWhat is ProGuard? What is use in Android?Create Android Custom ROMsJava on AndroidPagination in RecyclerViewGenymotion for androidHandling touch and motion eventsCreating Splash screenConstraintSetCleverTapPublish a library to Maven Repositoriesadb shellPing ICMPAIDLAndroid programming with KotlinAutosizing TextViewsSign your Android App for ReleaseContextActivity RecognitionSecure SharedPreferencesSecure SharedPreferencesBitmap CacheAndroid-x86 in VirtualBoxJCodecDesign PatternsOkioGoogle signin integration on androidTensorFlowAndroid game developmentNotification Channel Android OBluetooth Low EnergyLeakcanaryAdding a FuseView to an Android ProjectAccessing SQLite databases using the ContentValues classEnhancing Alert DialogsHardware Button Events/Intents (PTT, LWP, etc.)SpannableStringLooperOptimized VideoViewGoogle Drive APIAnimated AlertDialog BoxAnnotation ProcessorSyncAdapter with periodically do sync of dataCreate Singleton Class for Toast MessageFastjsonAndroid Architecture ComponentsJacksonGoogle Play StoreLoading Bitmaps EffectivelyGetting system font names and using the fontsSmartcardConvert vietnamese string to english string Android

SpannableString

Other topics

Add styles to a TextView

In the following example, we create an Activity to display a single TextView.

The TextView will use a SpannableString as its content, which will illustrate some of the available styles.

Here' what we're gonna do with the text :

  • Make it larger
  • Bold
  • Underline
  • Italicize
  • Strike-through
  • Colored
  • Highlighted
  • Show as superscript
  • Show as subscript
  • Show as a link
  • Make it clickable.
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
     
 SpannableString styledString
  = new SpannableString("Large\n\n"     // index 0 - 5
       + "Bold\n\n"          // index 7 - 11
       + "Underlined\n\n"    // index 13 - 23
       + "Italic\n\n"        // index 25 - 31
       + "Strikethrough\n\n" // index 33 - 46
       + "Colored\n\n"       // index 48 - 55
       + "Highlighted\n\n"   // index 57 - 68
       + "K Superscript\n\n" // "Superscript" index 72 - 83 
       + "K Subscript\n\n"   // "Subscript" index 87 - 96
       + "Url\n\n"           //  index 98 - 101
       + "Clickable\n\n");   // index 103 - 112
  
 // make the text twice as large
 styledString.setSpan(new RelativeSizeSpan(2f), 0, 5, 0);
  
 // make text bold
 styledString.setSpan(new StyleSpan(Typeface.BOLD), 7, 11, 0);
  
 // underline text
 styledString.setSpan(new UnderlineSpan(), 13, 23, 0);
  
 // make text italic
 styledString.setSpan(new StyleSpan(Typeface.ITALIC), 25, 31, 0);
  
 styledString.setSpan(new StrikethroughSpan(), 33, 46, 0);
  
 // change text color
 styledString.setSpan(new ForegroundColorSpan(Color.GREEN), 48, 55, 0);
  
 // highlight text
 styledString.setSpan(new BackgroundColorSpan(Color.CYAN), 57, 68, 0);
  
 // superscript
 styledString.setSpan(new SuperscriptSpan(), 72, 83, 0);
 // make the superscript text smaller
 styledString.setSpan(new RelativeSizeSpan(0.5f), 72, 83, 0);
  
 // subscript
 styledString.setSpan(new SubscriptSpan(), 87, 96, 0);
 // make the subscript text smaller
 styledString.setSpan(new RelativeSizeSpan(0.5f), 87, 96, 0);
  
 // url
 styledString.setSpan(new URLSpan("http://www.google.com"), 98, 101, 0);
  
 // clickable text
 ClickableSpan clickableSpan = new ClickableSpan() {

 @Override
 public void onClick(View widget) {
// We display a Toast. You could do anything you want here.
Toast.makeText(SpanExample.this, "Clicked", Toast.LENGTH_SHORT).show();
 
  }
};

 styledString.setSpan(clickableSpan, 103, 112, 0);


 // Give the styled string to a TextView
 TextView textView = new TextView(this);

 // this step is mandated for the url and clickable styles.
 textView.setMovementMethod(LinkMovementMethod.getInstance());

 // make it neat
textView.setGravity(Gravity.CENTER);
textView.setBackgroundColor(Color.WHITE);

textView.setText(styledString);

setContentView(textView);

}

And the result will look like this: Result Image

Multi string , with multi color

Method: setSpanColor

public Spanned setSpanColor(String string, int color){
    SpannableStringBuilder builder = new SpannableStringBuilder();
    SpannableString ss = new SpannableString(string);
    ss.setSpan(new ForegroundColorSpan(color), 0, string.length(), 0);
    builder.append(ss);
    return ss;
}

Usage:

String a = getString(R.string.string1);
String b = getString(R.string.string2);

Spanned color1 = setSpanColor(a,Color.CYAN);
Spanned color2 = setSpanColor(b,Color.RED);
Spanned mixedColor = TextUtils.concat(color1, " ", color2);
// Now we use `mixedColor`

Syntax:

  • char charAt (int i)
  • boolean equals (Object o)
  • void getChars (int start, int end, char[] dest, int off)
  • int getSpanEnd (Object what)
  • int getSpanFlags (Object what)
  • int getSpanStart (Object what)
  • T[] getSpans (int queryStart, int queryEnd, Class<T> kind)
  • int hashCode ()
  • int length ()
  • int nextSpanTransition (int start, int limit, Class kind)
  • void removeSpan (Object what)
  • void setSpan (Object what, int start, int end, int flags)
  • CharSequence subSequence (int start, int end)
  • String toString ()
  • SpannableString valueOf (CharSequence source)

Contributors

Topic Id: 10553

Example Ids: 31677,31678

This site is not affiliated with any of the contributors.