Create clickable link in text view in android

Question

I have some hash tags in a TextView which are starts with \'#\'

Example:\"#one#two Hello World #three\".

I wants these hash tags clickable separ

Answer 1

You can use LinearLayout :

• In xml add :

  <EditText
      android:id="@+id/tag_ET"
      android:layout_width="0dp"
      android:layout_height="fill_parent"
      android:layout_weight="4"
      android:gravity="left"
      android:inputType="text" />
  
  <Button
      android:id="@+id/add_Btn"
      android:layout_width="0dp"
      android:layout_height="wrap_content"
      android:layout_gravity="right"
      android:layout_weight="1"
      android:text="@string/tags_add_btn_text" />
  

  <LinearLayout
      android:id="@+id/tags_view"
      android:layout_width="wrap_content"
      android:layout_height="50dp"
      android:orientation="horizontal" />
  

• Init layout :

  // EditText to write Tags.
  EditText tag = (EditText) findViewById(R.id.tag_ET));
  // Button used to add tags
  Button addTagBtn = (Button) findViewById(R.id.add_Btn));
  // layout contains added tags.
  final LinearLayout tagsView = (LinearLayout) findViewById(R.id.tags_view);
  

• Add tags to tagView :

      final String tagTxt = tagEt.getText().toString();
      if (!tagTxt.isEmpty()) {
          Spannable buttonLabel = new SpannableString(tagTxt);
  
          // clear tag edit text
          tagEt.setText("");
  
          // add tag to layout
          Button btn = new Button(this);
          LinearLayout.LayoutParams lp = new LinearLayout.LayoutParams(
          LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
          lout.addView(btn, tagsView);
  
          btn.setText(buttonLabel);
          btn.setBackgroundResource(R.drawable.hover);
          btn.setOnClickListener(new OnClickListener() {
  
              @Override
              public void onClick(View v) {
                  // Toast whatever you want.
                  Toast.makeText(getApplicationContext(), tagTxt,1000).show();
              }
          });
      }
  

Answer 2

Modify the below according to your requirement. Use a SpannableString

String s ="#one #Two Hello World #three";
String split[] = s.split("#");
TextView_tv = (TextView) findViewById( R.id.tv );
for(int i=1;i<split.length;i++)
{
  SpannableString ss1=  new SpannableString("#"+split[i]);     
  ss1.setSpan(new  MyClickableSpan(""+i), 0, 1,  Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
  ss1.setSpan(newForegroundColorSpan(Color.RED),0,1,Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
  _tv.append(ss1);
   _tv.append(" ");   
}
_tv.setMovementMethod(LinkMovementMethod.getInstance());

class MyClickableSpan extends ClickableSpan{    
String clicked;
public MyClickableSpan(String string) {

    super();
    clicked =string;
    }

    public void onClick(View tv) {
        if(clicked.equals("1"))
        {
             Toast.makeText(getApplicationContext(), "One",1000).show();
        }
        else if(clicked.equals("2"))
        {
            Toast.makeText(getApplicationContext(), "Two",1000).show();
        }
        else
        {
            Toast.makeText(getApplicationContext(), "Three",1000).show();       
        }

   }

    @Override
    public void updateDrawState(TextPaint ds) {
       ds.setUnderlineText(false); // set to false to remove underline
    }
    } 
   }

Snap on Emulator

On each hash click displays toast one, two and three. Instead of toast start a new activity.

Edit:

If you want the string clicked

 ss1.setSpan(new  MyClickableSpan(""+i,split[i]), 0, 1,  Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);

Then

 String clicked;
 String astring;
 public MyClickableSpan(String check,String actualstring) {
super();
clicked =check;
astring =actualstring; // pass this to next activity using intent
}

Then

  public void onClick(View tv) {
        if(clicked.equals("1"))
        {
             Toast.makeText(getApplicationContext(), astring,1000).show();
        }
        else if(clicked.equals("2"))
        {
            Toast.makeText(getApplicationContext(), astring,1000).show();
        }
        else
        {
            Toast.makeText(getApplicationContext(), astring,1000).show();       
        }

   }