小记：searchview

searchview

先导包

  implementation 'com.miguelcatalan:materialsearchview:1.4.0'

然后再xml中去写一个控件

<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity">

   <androidx.appcompat.widget.Toolbar
       android:id="@+id/tooolbar"
       android:layout_width="match_parent"
       android:layout_height="?attr/actionBarSize"
       android:background="@color/colorPrimary" />
    <com.miguelcatalan.materialsearchview.MaterialSearchView
        android:id="@+id/search_view"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" />

</FrameLayout>

去主函数里去实例化

  Toolbar toolbar=findViewById(R.id.tooolbar);
            toolbar.setTitle("nmsl");
            setSupportActionBar(toolbar);

        searchView = (MaterialSearchView) findViewById(R.id.search_view);

基本控件实例化
设置点击监听

  searchView.setOnQueryTextListener(new MaterialSearchView.OnQueryTextListener() {
                @Override
                public boolean onQueryTextSubmit(String query) {
                    //Do some magic
                    return false;
                }

                @Override
                public boolean onQueryTextChange(String newText) {
                    //Do some magic
                    return false;
                }
            });

            searchView.setOnSearchViewListener(new MaterialSearchView.SearchViewListener() {
                @Override
                public void onSearchViewShown() {
                    //Do some magic
                    //搜索框展开
                    Toast.makeText(MainActivity.this, "展开", Toast.LENGTH_SHORT).show();
                }

                @Override
                public void onSearchViewClosed() {
                    //Do some magic
                    //搜索框关闭
                    Toast.makeText(MainActivity.this, "关闭", Toast.LENGTH_SHORT).show();
                }
            });
            searchView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
                @Override
                public void onItemClick(AdapterView<?> parent, View view, int position, long id) {






                }
            });

里面需要用到菜单
所以新建菜单

<menu xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto">
    <item
        android:id="@+id/action_search"
        android:icon="@drawable/ic_action_action_search"
        android:orderInCategory="100"
        android:title="@string/abc_search_hint"
        app:showAsAction="always" />
</menu>

再菜单里面去把控件设置好，才能具有点击效果

  @Override
        public boolean onCreateOptionsMenu(Menu menu) {
            getMenuInflater().inflate(R.menu.menu,menu);
            MenuItem item = menu.findItem(R.id.action_search);
            searchView.setMenuItem(item);
            searchView.setHint("sad");


           return true ;
        }

包装一下

     }
    @Override
    public void onBackPressed() {
        if (searchView.isSearchOpen()) {
            searchView.closeSearch();
        } else {
            super.onBackPressed();
        }
    }