85 lines
2.7 KiB
Java
85 lines
2.7 KiB
Java
package app.fedilab.android.helper;
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import android.os.Handler;
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import android.text.Layout;
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import android.text.Selection;
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import android.text.Spannable;
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import android.text.method.LinkMovementMethod;
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import android.text.method.MovementMethod;
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import android.view.MotionEvent;
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import android.widget.TextView;
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//https://stackoverflow.com/a/20435892
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public class LongClickLinkMovementMethod extends LinkMovementMethod {
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private static LongClickLinkMovementMethod sInstance;
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private Handler mLongClickHandler;
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private boolean mIsLongPressed = false;
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public static MovementMethod getInstance() {
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if (sInstance == null) {
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sInstance = new LongClickLinkMovementMethod();
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sInstance.mLongClickHandler = new Handler();
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}
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return sInstance;
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}
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@Override
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public boolean onTouchEvent(final TextView widget, Spannable buffer,
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MotionEvent event) {
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int action = event.getAction();
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if (action == MotionEvent.ACTION_CANCEL) {
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if (mLongClickHandler != null) {
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mLongClickHandler.removeCallbacksAndMessages(null);
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}
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}
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if (action == MotionEvent.ACTION_UP ||
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action == MotionEvent.ACTION_DOWN) {
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int x = (int) event.getX();
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int y = (int) event.getY();
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x -= widget.getTotalPaddingLeft();
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y -= widget.getTotalPaddingTop();
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x += widget.getScrollX();
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y += widget.getScrollY();
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Layout layout = widget.getLayout();
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int line = layout.getLineForVertical(y);
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int off = layout.getOffsetForHorizontal(line, x);
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final LongClickableSpan[] link = buffer.getSpans(off, off, LongClickableSpan.class);
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if (link.length != 0) {
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if (action == MotionEvent.ACTION_UP) {
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if (mLongClickHandler != null) {
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mLongClickHandler.removeCallbacksAndMessages(null);
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}
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if (!mIsLongPressed) {
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link[0].onClick(widget);
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}
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mIsLongPressed = false;
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} else {
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Selection.setSelection(buffer,
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buffer.getSpanStart(link[0]),
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buffer.getSpanEnd(link[0]));
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int LONG_CLICK_TIME = 1000;
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mLongClickHandler.postDelayed(() -> {
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link[0].onLongClick(widget);
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mIsLongPressed = true;
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widget.invalidate();
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}, LONG_CLICK_TIME);
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}
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return true;
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}
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}
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return super.onTouchEvent(widget, buffer, event);
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}
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} |