Remove the SearchIcon as hint in the searchView

问题:

I am doing an application where for example when i click on the image(it is a searchView)

the search pad opens !

and it looks like

but here the default search icon (magnifier) gets displayed but this dissappears as soon as some text is entered

but i dont want that magnifier to be displayed even the image is clicked for the first time

and here i am not using any xml file

my code is

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);
        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...");
        }
    }
}

回答1:

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.

回答2:

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"
/>

回答3:

I've simply put @null to searchHintIcon attribute:

<style name="SearchViewMy" parent="Widget.AppCompat.Light.SearchView">
    <item name="searchHintIcon">@null</item>
</style>

and applied that style in my app theme

<style name="Theme.App" parent="Theme.AppCompat.Light.NoActionBar.FullScreen">
    <item name="searchViewStyle">@style/SearchViewMy</item>
</style>

Works for me.

回答4:

Try these three lines:

android:iconifiedByDefault="false"
android:searchIcon="@null"
android:searchHintIcon="@null"

*It works only for android.widget.SearchView

回答5:

TL;DR: Simply setting the EditText's hint to the empty string is enough to remove the hint icon.

I found an answer that actually works. There's a lot of stuff on changing the icon using reflection - such as discussed at Styling the ActionBar SearchView. This website IS a great resource, but unfortunately the search hint ImageView does not change (even though the reflection does not cause errors). The only way that I was able to remove this image was this:

try {
    int searchPlateId = searchView.getContext().getResources().getIdentifier("android:id/search_src_text", null, null);
    EditText searchPlate = (EditText) searchView.findViewById(searchPlateId);
    searchPlate.setHint("");
}
catch (Throwable t)
{
    t.printStackTrace();
}

You should place this in your onCreateOptionsMenu method, and get a reference to your XML-declared SearchView using something like:

SearchView searchView = (SearchView) menu.findItem(R.id.action_search).getActionView();

回答6:

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;
}

回答7:

Use "searchHintIcon" attribute in your styles for that:

<style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
    <item name="searchViewStyle">@style/AppTheme.SearchView</item>
</style>

<style name="AppTheme.SearchView" parent="Widget.AppCompat.SearchView">
    <item name="searchHintIcon">@null</item>
</style>

You can replace @null with any drawable res you want

回答8:

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...");
            }
        }
    }

回答9:

It's answer

ImageView searchViewIcon = (ImageView)searchView.findViewById(android.support.v7.appcompat.R.id.search_mag_icon);

ViewGroup linearLayoutSearchView =(ViewGroup) searchViewIcon.getParent();
linearLayoutSearchView.removeView(searchViewIcon);