布局

        android:id="@+id/searchView"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:focusable="true"
        android:focusableInTouchMode="true"
        android:iconifiedByDefault="false"
        android:inputType="textFilter" />

    <ListView
        android:id="@+id/lv_police"
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:layout_weight="1"
        android:divider="#ff0000"
        android:dividerHeight="1dp"
        android:padding="10dp" />```
initData();

public void onSuccess(int statusCode, String content) {
// TODO Auto-generated method stub
super.onSuccess(statusCode, content);
if (content != null) {
PoliceListBean parseObject = JSON.parseObject(
content, PoliceListBean.class);
if (parseObject.getList() != null) {
mData = parseObject.getList();
mBackData = mData;
}
}

initView

    mSearchView = (SearchView) findViewById(R.id.searchView);
    lv = (ListView) findViewById(R.id.lv_police);
    findViewById(R.id.ib_police_back).setOnClickListener(
            new OnClickListener() {

                @Override
                public void onClick(View v) {
                    // TODO Auto-generated method stub
                    finish();
                }
            });

    mSearchView.setIconifiedByDefault(false);
    mSearchView.setOnQueryTextListener(this);
    mSearchView.setSubmitButtonEnabled(true);
    mSearchView.setQueryHint("查找");
    //mSearchView.setFocusable(false);

    lv.setTextFilterEnabled(true);
    mAdapter = new MyAdapter();
    lv.setAdapter(mAdapter);

自定義Adapter 并添加過(guò)濾
``` private class MyAdapter extends BaseAdapter implements Filterable {
        private MyFilter mFilter;

        @Override
        public int getCount() {
            return mData.size();
        }

        @Override
        public Object getItem(int position) {
            return mData.get(position);
        }

        @Override
        public long getItemId(int position) {
            return position;
        }

        @Override
        public View getView(int position, View convertView, ViewGroup parent) {
            if (null == convertView) {
                convertView = View.inflate(PoliceActivity.this,
                        R.layout.police_item, null);
            }

            TextView name = (TextView) convertView
                    .findViewById(R.id.tv_police_name);
            TextView duiName = (TextView) convertView
                    .findViewById(R.id.tv_police_duizhang);
            TextView number = (TextView) convertView
                    .findViewById(R.id.tv_police_number);

            name.setText(mData.get(position).getJwsmc());
            duiName.setText(mData.get(position).getDzxm());
            number.setText(mData.get(position).getPddys() + "");
            return convertView;
        }

        @Override
        public Filter getFilter() {
            if (null == mFilter) {
                mFilter = new MyFilter();
            }
            return mFilter;
        }

        // 自定義Filter類(lèi)
        class MyFilter extends Filter {
            @Override
            // 該方法在子線程中執(zhí)行
            // 自定義過(guò)濾規(guī)則
            protected FilterResults performFiltering(CharSequence constraint) {
                FilterResults results = new FilterResults();

                List<ListBean> newValues = new ArrayList<ListBean>();
                String filterString = constraint.toString().trim()
                        .toLowerCase();

                // 如果搜索框內(nèi)容為空，就恢復(fù)原始數(shù)據(jù)
                if (TextUtils.isEmpty(filterString)) {
                    newValues = mBackData;
                } else {
                    // 過(guò)濾出新數(shù)據(jù)
                    for (ListBean str : mBackData) {
                        if (-1 != str.getJwsmc().toLowerCase()
                                .indexOf(filterString)) {
                            newValues.add(str);
                        }
                    }
                }

                results.values = newValues;
                results.count = newValues.size();

                return results;
            }

            @Override
            protected void publishResults(CharSequence constraint,
                    FilterResults results) {
                mData = (List<ListBean>) results.values;

                if (results.count > 0) {
                    mAdapter.notifyDataSetChanged(); // 通知數(shù)據(jù)發(fā)生了改變
                } else {
                    mAdapter.notifyDataSetInvalidated(); // 通知數(shù)據(jù)失效
                }
            }
        }

    }```
需要重寫(xiě)的兩個(gè)方法，onQueryTextSubmit 是你點(diǎn)擊鍵盤(pán)的搜索二字 會(huì)觸發(fā)的方法 直接return false也行。
onQueryTextChange 你每輸入一個(gè)字符就會(huì)觸發(fā)一次，也會(huì)刷新一次適配器：
``` @Override
    public boolean onQueryTextSubmit(String query) {
        if (mSearchView != null) {
            // 得到輸入管理對(duì)象
            InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
            if (imm != null) {
                // 這將讓鍵盤(pán)在所有的情況下都被隱藏
                imm.hideSoftInputFromWindow(mSearchView.getWindowToken(), 0); // 輸入法如果是顯示狀態(tài)，那么就隱藏輸入法
            }
            mSearchView.clearFocus(); // 不獲取焦點(diǎn)
        }
        return true;

    }

    @Override
    public boolean onQueryTextChange(String newText) {
        // TODO Auto-generated method stub
        if (TextUtils.isEmpty(newText)) {
            // 清楚ListView的過(guò)濾
            mAdapter.getFilter().filter("");
            // lv.clearTextFilter();
        } else {
            // 使用用戶(hù)輸入的內(nèi)容對(duì)ListView的列表項(xiàng)進(jìn)行過(guò)濾
            // 主要是這句寫(xiě)上就沒(méi)黑框了
            mAdapter.getFilter().filter(newText);
            // lv.setFilterText(newText);

        }
        return true;
    }```


![QQ截圖20170626163610.png](http://upload-images.jianshu.io/upload_images/5960267-460f7c89f77476f4.png?imageMogr2/auto-orient/strip%7CimageView2/2/w/1240)

去除黑色背景
不獲取焦點(diǎn)無(wú)效
實(shí)時(shí)查詢(xún)動(dòng)態(tài)刷新