spannable string

SpannableString Text Color

<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity">

    <TextView
        android:id="@+id/color_tv"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Hello World!"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

</android.support.constraint.ConstraintLayout>

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        TextView textView = findViewById(R.id.color_tv);

        String text = "I want THIS and THIS to be colored";

        SpannableString ss = new SpannableString(text);
        SpannableStringBuilder ssb = new SpannableStringBuilder(text);

        ForegroundColorSpan fcsRed = new ForegroundColorSpan(Color.RED);
        ForegroundColorSpan fcsGreen = new ForegroundColorSpan(Color.GREEN);
        BackgroundColorSpan bcsYellow = new BackgroundColorSpan(Color.YELLOW);

        ssb.setSpan(fcsRed, 7, 11, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
        ssb.setSpan(fcsGreen, 16, 20, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
        ssb.setSpan(bcsYellow, 27, 34, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);

        ssb.append(" and this to be appended");

        textView.setText(ssb);
    }
}

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        TextView textView = findViewById(R.id.color_tv);

        String text = "I want THIS and THIS to be colored";

        SpannableString ss = new SpannableString(text);
        SpannableStringBuilder ssb = new SpannableStringBuilder(text);

        ForegroundColorSpan fcsRed = new ForegroundColorSpan(Color.RED);
        ForegroundColorSpan fcsGreen = new ForegroundColorSpan(Color.GREEN);
        BackgroundColorSpan bcsYellow = new BackgroundColorSpan(Color.YELLOW);

        ssb.setSpan(fcsRed, 7, 11, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
        ssb.setSpan(fcsGreen, 16, 20, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
        ssb.setSpan(bcsYellow, 27, 34, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);

        ssb.append(" and this to be appended");

        textView.setText(ssb);
    }
}

SpannableString Text Style

<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity">

    <TextView
        android:id="@+id/text_view"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="BOLD and ITALIC and BOLD-ITALIC and UNDERLINE and STRIKE-THROUGH"
        android:textAlignment="center"
        android:textSize="18sp"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

</android.support.constraint.ConstraintLayout>

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        TextView textView = findViewById(R.id.text_view);

        String text = "BOLD and ITALIC and BOLD-ITALIC and UNDERLINE and STRIKE-THROUGH";

        SpannableString ss = new SpannableString(text);

        StyleSpan boldSpan = new StyleSpan(Typeface.BOLD);
        StyleSpan italicSpan = new StyleSpan(Typeface.ITALIC);
        StyleSpan boldItalicSpan = new StyleSpan(Typeface.BOLD_ITALIC);
        UnderlineSpan underlineSpan = new UnderlineSpan();
        StrikethroughSpan strikethroughSpan = new StrikethroughSpan();

        ss.setSpan(boldSpan, 0, 4, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
        ss.setSpan(italicSpan, 9, 15, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
        ss.setSpan(boldItalicSpan, 20, 31, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
        ss.setSpan(underlineSpan, 36, 45, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
        ss.setSpan(strikethroughSpan, 50, 64, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);

        textView.setText(ss);
    }
}

ClickableSpan

public class MainActivity extends AppCompatActivity {
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        TextView textView = findViewById(R.id.text_view);

        String text = "I want THIS and THIS to be clickable";

        SpannableString ss = new SpannableString(text);

        ClickableSpan clickableSpan1 = new ClickableSpan() {
            @Override
            public void onClick(View widget) {
                Toast.makeText(MainActivity.this, "One", Toast.LENGTH_SHORT).show();
            }

            @Override
            public void updateDrawState(TextPaint ds) {
                super.updateDrawState(ds);
                ds.setColor(Color.BLUE);
                ds.setUnderlineText(false);
            }
        };

        ClickableSpan clickableSpan2 = new ClickableSpan() {
            @Override
            public void onClick(View widget) {
                Toast.makeText(MainActivity.this, "Two", Toast.LENGTH_SHORT).show();
            }
        };

        ss.setSpan(clickableSpan1, 7, 11, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
        ss.setSpan(clickableSpan2, 16, 20, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);

        textView.setText(ss);
        textView.setMovementMethod(LinkMovementMethod.getInstance());
    }
}