ClickableSpan not clickable in custom view (not TextView)

问题

In our app we want to improve scroll speed via drawing custom views with text. Problem is ClickableSpan not clicked. For TextView we can use

textView.setMovementMethod(LinkMovementMethod.getInstance());

But what can I do to make link clicking work in custom view?

public class AutoLinkTextView extends View {
    private static final String TAG = "AutoLinkTextView";
    private StaticLayout staticLayout;

    public AutoLinkTextView(Context context) {
        super(context);
        initializeViews();
    }

    public AutoLinkTextView(Context context, AttributeSet attrs) {
        super(context, attrs);
        initializeViews();
    }

    public AutoLinkTextView(Context context, AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
        initializeViews();
    }

    private void initializeViews() {
        TextPaint textPaint = new TextPaint();
        textPaint.setTextSize(55);
        textPaint.setAntiAlias(true);
        textPaint.setColor(Color.GRAY);
        textPaint.linkColor = Color.RED;

        Spannable wordtoSpan = new SpannableString("I know just how to whisper, And I know just how to cry,I know just where to find the answers");


        URLSpan urlSpan = new URLSpan( "http://google.com" )
        {
            @Override
            public void onClick( View widget )
            {
                Intent i = new Intent( Intent.ACTION_VIEW );
                i.setData( Uri.parse( getURL() ) );
                getContext().startActivity( i );
            }
        };
        wordtoSpan.setSpan(urlSpan, 19, 26, Spannable.SPAN_INCLUSIVE_INCLUSIVE);
        staticLayout = new StaticLayout(wordtoSpan, textPaint, 1300, Layout.Alignment.ALIGN_CENTER, 1, 1, true);
    }

    @Override
    protected void onDraw(Canvas canvas) {
        super.onDraw(canvas);
        staticLayout.draw(canvas);
        TextView textView = new TextView();
        textView.setMovementMethod(LinkMovementMethod.getInstance());
    }

    @Override
    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
        super.onMeasure(widthMeasureSpec, heightMeasureSpec);
        setMeasuredDimension(MeasureSpec.getSize(widthMeasureSpec), staticLayout.getHeight());
    }

}

回答1:

Try this:

Here is my sample code

 textView.setText(addClickablePart(), TextView.BufferType.SPANNABLE);

         private SpannableStringBuilder addClickablePart() {
    String str = "I know just how to whisper, And I know just how to cry,I know just where to find the answers. Click Me";
                    SpannableStringBuilder ssb = new SpannableStringBuilder(str);
                    final ForegroundColorSpan fcs = new ForegroundColorSpan(ContextCompat.getColor(AppController.getContext(), R.color.dark_green));

                    final String clickString = "Click Me";
                    int idx1 = str.indexOf(clickString);
                    int idx2 = str.length() - 1;

                    ssb.setSpan(new ClickableSpan() {

                        @Override
                        public void onClick(View widget) {
                            Toast.makeText(MainActivity.this, clickString,
                                    Toast.LENGTH_SHORT).show();                        
                        }
                    }, idx1, idx2, 0);

                    ssb.setSpan(fcs, idx1, idx2, Spannable.SPAN_INCLUSIVE_INCLUSIVE);

                    return ssb;
                }

来源：https://stackoverflow.com/questions/37158126/clickablespan-not-clickable-in-custom-view-not-textview

标签

android

android-custom-view

clickablespan