I am doing an application where for example when i click on the image(it is a searchView)
with v7 Widget , if you use searchView.setIconifiedByDefault(false) the beahvior of the search view differs . You only set hint icon to @null in xml. Also you can apply this manner for other icons.
For androidx you can do like this
ImageView magImage = (ImageView) searchView.findViewById(androidx.appcompat.R.id.search_mag_icon);
magImage.setVisibility(View.GONE);
magImage.setImageDrawable(null);
It's work for me
I've had trouble with this too. I combined the tutorial I found and an existing answer found here in stackoverflow.
int magId = getResources().getIdentifier("android:id/search_mag_icon", null, null);
ImageView magImage = (ImageView) searchView.findViewById(magId);
magImage.setLayoutParams(new LinearLayout.LayoutParams(0, 0));
Take note that searchView is a LinearLayout, so use LinearLayout.LayoutParams to avoid an exception.
I also tried this but it doesn't remove the view. I can't seem to figure why.:
magImage.setVisibility(View.GONE);
For the other views that you need to change, refer to this tutorial.
In my app i've used android.support.v7.widget.SearchView
and to hide search icon this worked for me :
<android.support.v7.widget.SearchView
...
app:iconifiedByDefault="false"
app:searchIcon="@null"
/>
you can try this :
public class MainActivity extends Activity {
@SuppressLint("NewApi")
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
RelativeLayout relative = new RelativeLayout(this);
LayoutParams params = new LayoutParams(LayoutParams.MATCH_PARENT,LayoutParams.MATCH_PARENT);
relative.setLayoutParams(params);
setContentView(relative);
SearchView searchView = new SearchView(this);
searchView.setIconifiedByDefault(false);
traverseView(searchView, 0);
// searchView.setIconifiedByDefault(false);
LayoutParams searchViewparams = new LayoutParams(LayoutParams.WRAP_CONTENT,LayoutParams.WRAP_CONTENT);
// searchViewparams.addRule(RelativeLayout.ALIGN_PARENT_RIGHT);
searchView.setLayoutParams(searchViewparams);
relative.addView(searchView);
}
@TargetApi(Build.VERSION_CODES.HONEYCOMB)
@SuppressLint("NewApi")
private void traverseView(View view, int index) {
if (view instanceof SearchView) {
SearchView v = (SearchView) view;
for(int i = 0; i < v.getChildCount(); i++) {
traverseView(v.getChildAt(i), i);
}
} else if (view instanceof LinearLayout) {
LinearLayout ll = (LinearLayout) view;
for(int i = 0; i < ll.getChildCount(); i++) {
traverseView(ll.getChildAt(i), i);
}
} else if (view instanceof EditText) {
((EditText) view).setTextColor(Color.GREEN);
((EditText) view).setHintTextColor(Color.BLACK);
} else if (view instanceof TextView) {
((TextView) view).setTextColor(Color.BLUE);
} else if (view instanceof ImageView) {
((ImageView) view).setImageResource(R.drawable.ic_launcher);
} else {
Log.v("View Scout", "Undefined view type here...");
}
}
}
I just met the same problem, here are some reference links.
http://blog.luxteam.net/2013/11/04/styling-appcompat-searchview/
https://android.googlesource.com/platform/frameworks/support.git/+/android-support-lib-19.1.0/v7/appcompat/src/android/support/v7/widget/SearchView.java
The key is in the following function, it sets the icon as an ImageSpan
.
private CharSequence getDecoratedHint(CharSequence hintText) {
// If the field is always expanded, then don't add the search icon to the hint
if (!mIconifiedByDefault) return hintText;
SpannableStringBuilder ssb = new SpannableStringBuilder(" "); // for the icon
ssb.append(hintText);
Drawable searchIcon = getContext().getResources().getDrawable(getSearchIconId());
int textSize = (int) (mQueryTextView.getTextSize() * 1.25);
searchIcon.setBounds(0, 0, textSize, textSize);
ssb.setSpan(new ImageSpan(searchIcon), 1, 2, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
return ssb;
}