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Faster Loading images in GridViews or ListViews
Spannable brings lots of possibility to TextView, includes displaying various appearance of a Text and onClick callbak.
The SpannableString class allows you to easily format certain pieces which are called spans of a string, by applying CharacterStyle ie,color, font, ormake it a link .
Here is an example where, explained how to use spannable string to give font size, color, linking a text via clickable span and through URL Span and to strike through the text.
Lets go through the example :
Faster Loading images in GridViews or ListViews
Spannable brings lots of possibility to TextView, includes displaying various appearance of a Text and onClick callbak.The SpannableString class allows you to easily format certain pieces which are called spans of a string, by applying CharacterStyle ie,color, font, ormake it a link .
Here is an example where, explained how to use spannable string to give font size, color, linking a text via clickable span and through URL Span and to strike through the text.
Lets go through the example :
import android.os.Bundle; import android.text.SpannableString; import android.text.method.LinkMovementMethod; import android.text.style.ClickableSpan; import android.text.style.ForegroundColorSpan; import android.text.style.RelativeSizeSpan; import android.text.style.StrikethroughSpan; import android.text.style.URLSpan; import android.view.View; import android.widget.TextView; import android.widget.Toast; import android.widget.TextView.BufferType; import android.app.Activity; import android.graphics.Color; public class Spannable_String extends Activity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_spannable__string); TextView spannabletextview = (TextView)findViewById(R.id.usage); //********* Simple Span to color text ************// // this is the text that we going to work on SpannableString text = new SpannableString("Iam an example for spannable string "); // make "Iam" (characters 0 to 3) green text.setSpan(new ForegroundColorSpan(Color.BLUE), 0, 3, 0); // Put the SpannableString in textview //**** Relative Span to change text relative to others ****// //changing the text from 5 to 9 1.5f bigger than textview size text.setSpan(new RelativeSizeSpan(1.5f), 5, 9, 0); //************ Clickable Span **************// // going to make "for" a clickable text and bring a toast ClickableSpan clickfor = new ClickableSpan() { @Override public void onClick(View widget) { Toast.makeText(Spannable_String.this, "hello clicked for", Toast.LENGTH_LONG).show(); } }; text.setSpan(clickfor, 15, 18, 0); //******** Strike through text***********// text.setSpan(new StrikethroughSpan(), 9, 14, 0); //******** URL Span *********************// text.setSpan(new URLSpan("http://eazyprogramming.blogspot.in/"), 22, 26, 0); //******** ForegroundColor *********************// text.setSpan(new ForegroundColorSpan(Color.GREEN), 22, 26, 0); // make our ClickableSpans and URLSpans work spannabletextview.setMovementMethod(LinkMovementMethod.getInstance()); spannabletextview.setText(text, BufferType.SPANNABLE); } }
how to remove link underline in above example?
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