我正在开发一个应用程序,用户从库中选择一个图像,它将添加到editText中,现在我想如果用户点击editText中的图像,它应该在fullScreen中打开,我使用下面的代码： –
public void addToEdt(Bitmap bitmap){
SpannableString ss = new SpannableString("abc");
Drawable d = new BitmapDrawable(getResources(),bitmap);
d.setBounds(0,d.getIntrinsicWidth(),d.getIntrinsicHeight());
ImageSpan span = new ImageSpan(d,ImageSpan.ALIGN_BASELINE);
ss.setSpan(span,3,Spannable.SPAN_INCLUSIVE_EXCLUSIVE);
edt_note.setTransformationMethod(null);
edt_note.getText().insert(edt_note.getSelectionStart(),ss);
final int start = ss.getSpanStart(span);
final int end = ss.getSpanEnd(span);
ClickableSpan click_span = new ClickableSpan() {
@Override
public void onClick(View widget) {
Toast.makeText(getApplicationContext(),"Clicked",Toast.LENGTH_LONG).show();
}
};
ClickableSpan[] click_spans = ss.getSpans(start,end,ClickableSpan.class);
if(click_spans.length != 0) {
// remove all click spans
for (ClickableSpan c_span : click_spans) {
ss.removeSpan(c_span);
}
}
ss.setSpan(click_span,start,Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
}
尝试上面的代码,但它没有监听onClick事件,
现在,我如何在此图像上收听点击事件并执行进一步的任务？
解决方法
可编辑的跨度位于editText的相同开始和结束位置.
sb.setSpan(cs,imageStartSpan,imageEndSpan,Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
也
editText.setMovementMethod(LinkMovementMethod.getInstance());
我无法为你编写完整的代码.试试以下样本： –
public void addToEdt(Bitmap bitmap){
SpannableString ss = new SpannableString();
Drawable d = new BitmapDrawable(getResources(),d.getIntrinsicHeight());
ss.append("abc"); // Append the text here
ImageSpan span = new ImageSpan(d,2,Spannable.SPAN_EXCLUSIVE_EXCLUSIVE); // start(0) and end (2) will create an image span over abc text
ss.setSpan(new ClickableSpan() {
@Override
public void onClick(View widget) {
ss.delete(0,2);
editText.setText(ss);
}
},Spannable.SPAN_EXCLUSIVE_EXCLUSIVE); // this will add a clickable span and on click will delete the span and text
editText.setText(ss); // this will show your image/clickable span in edittext
}
editText.setMovementMethod(LinkMovementMethod.getInstance());
