安卓 搜索页面
1.添加依赖
implementation 'com.hyman:flowlayout-lib:1.1.2'2.activity
public class SearchActivity extends AppCompatActivity {
@BindView(R.id.input_search_content_et)
ClearEditText inputSearchContentEt;
@BindView(R.id.search_content_cancel_tv)
TextView searchContentCancelTv;
@BindView(R.id.tv_history)
TextView tvHistory;
@BindView(R.id.image_clear)
ImageView imageClear;
// @BindView(R.id.search_content_show_ll)
// LinearLayout searchContentShowLl;
@BindView(R.id.list_search)
ListView listSearch;
@BindView(R.id.ll_search)
LinearLayout llSearch;
@BindView(R.id.rl_caozuo)
RelativeLayout rlCaozuo;
@BindView(R.id.iv_black)
ImageView ivBlack;
@BindView(R.id.id_flowlayout)
TagFlowLayout idFlowlayout;
private SearchRecordsAdapter recordsAdapter;
private List searchRecordsList;
private List tempList;
private RecordsDao recordsDao;
private AlertDialog.Builder builder;
private String uuid,token;
private ProgressDialog progressDialog;
private List shipinlist = new ArrayList<>();
private ShiPinListAdapter shipinadapter;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_search);
ButterKnife.bind(this);
initData();
bindAdapter();
initListener();
}
public void xianshi(String string){
inputSearchContentEt.setText(string);
}
private void initData() {
recordsDao = new RecordsDao(this);
searchRecordsList = new ArrayList<>();
tempList = new ArrayList<>();
tempList.addAll(recordsDao.getRecordsList());
reversedList();
//第一次进入判断数据库中是否有历史记录，没有则不显示
checkRecordsSize();
}
private void bindAdapter() {
//list转化数组
String[] array = searchRecordsList.toArray(new String[0]);
idFlowlayout.setAdapter(new TagAdapter(array) {
@Override
public View getView(com.zhy.view.flowlayout.FlowLayout parent, int position, String s) {
final LayoutInflater mInflater = LayoutInflater.from(SearchActivity.this);
TextView tv = (TextView) mInflater.inflate(R.layout.tv_tag,
idFlowlayout, false);
tv.setText(s);
return tv;
}
// 为标签设置预点击内容(就是一开始就处于点击状态的标签)
@Override
public boolean setSelected(int position, String s) {
return false;
}
});
// 为点击标签设置点击事件.
idFlowlayout.setOnTagClickListener(new TagFlowLayout.OnTagClickListener() {
@Override
public boolean onTagClick(View view, int position, com.zhy.view.flowlayout.FlowLayout parent) {
inputSearchContentEt.setText(searchRecordsList.get(position));
return false;
}
});
}
private void initListener() {
searchContentCancelTv.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
String record = inputSearchContentEt.getText().toString();
recordsDao.addRecords(record);
String tempName = inputSearchContentEt.getText().toString();
tempList.clear();
tempList.addAll(recordsDao.querySimlarRecord(tempName));
reversedList();
checkRecordsSize();
llSearch.setVisibility(View.VISIBLE);
rlCaozuo.setVisibility(View.GONE);
idFlowlayout.setVisibility(View.GONE);
setTvShipin();
bindAdapter();
}
});
ivBlack.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
finish();
}
});
imageClear.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
showTwo();
}
});
}
//当没有匹配的搜索数据的时候不显示历史记录栏
private void checkRecordsSize() {
}
private void showTwo() {
android.app.AlertDialog alertDialog = new android.app.AlertDialog.Builder(SearchActivity.this)
.setTitle("清除历史记录")
.setMessage("是否要清除历史记录")
.setPositiveButton("确定", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
// TODO: 2018/4/16 positive
tempList.clear();
reversedList();
recordsDao.deleteAllRecords();
bindAdapter();
// searchRecordsLl.setVisibility(View.GONE);
inputSearchContentEt.setHint("请输入你要搜索的内容");
}
}).setNegativeButton("取消", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
// TODO: 2018/4/16 negative
}
}).create();
alertDialog.show();
alertDialog.getButton(DialogInterface.BUTTON_POSITIVE).setTextColor(Color.GRAY);
alertDialog.getButton(DialogInterface.BUTTON_NEGATIVE).setTextColor(Color.RED);
}
private void setTvShipin() {
SharedPreferences sPreferences = getSharedPreferences("Login", MODE_PRIVATE);
token = sPreferences.getString("token", "");
uuid= sPreferences.getString("userid", "");
OkGo.get(url).headers("authorization", token).execute(new StringCallback() {
@Override
public void onSuccess(Response response) {
ShiPinLieBiaoModel shouYeXiaoXiModel = new ShiPinLieBiaoModel();
shouYeXiaoXiModel = new Gson().fromJson(response.body().toString(), ShiPinLieBiaoModel.class);
Log.w("11111", response.body().toString());
if (shouYeXiaoXiModel.getCode() == 1) {
shipinlist = (List) shouYeXiaoXiModel.getData();
// Log.e("条数", shipinlist.size() + "");
// shipinlist1.addAll(shipinlist);
if (response.body().contains("暂无数据")) {
Toast.makeText(SearchActivity.this, shouYeXiaoXiModel.getMsg(), Toast.LENGTH_SHORT).show();
} else {
shipinadapter = new ShiPinListAdapter(SearchActivity.this, R.layout.item_shipin, shipinlist);
listSearch.setAdapter(shipinadapter);
}
}
}
});
}
//颠倒list顺序，用户输入的信息会从上依次往下显示
private void reversedList() {
searchRecordsList.clear();
for (int i = tempList.size() - 1; i >= 0; i--) {
searchRecordsList.add(tempList.get(i));
}
}
@Override
protected void onResume() {
super.onResume();
if (inputSearchContentEt.getText().length() == 0) {
llSousuojieguo.setVisibility(View.GONE);
rlCaozuo.setVisibility(View.VISIBLE);
bindAdapter();
}
}
}
3.操作类 public class RecordsDao {
RecordSQLiteOpenHelper recordHelper;
SQLiteDatabase recordsDb;
public RecordsDao(Context context) {
recordHelper = new RecordSQLiteOpenHelper(context);
}
//添加搜索记录
public void addRecords(String record) {
if (!isHasRecord(record)) {
recordsDb = recordHelper.getReadableDatabase();
ContentValues values = new ContentValues();
values.put("name", record);
//添加
recordsDb.insert("records", null, values);
//关闭
recordsDb.close();
}
}
//判断是否含有该搜索记录
public boolean isHasRecord(String record) {
boolean isHasRecord = false;
recordsDb = recordHelper.getReadableDatabase();
Cursor cursor = recordsDb.query("records", null, null, null, null, null, null);
while (cursor.moveToNext()) {
if (record.equals(cursor.getString(cursor.getColumnIndexOrThrow("name")))) {
isHasRecord = true;
}
}
//关闭数据库
recordsDb.close();
cursor.close();
return isHasRecord;
}
//获取全部搜索记录
public List getRecordsList() {
List recordsList = new ArrayList<>();
recordsDb = recordHelper.getReadableDatabase();
Cursor cursor = recordsDb.query("records", null, null, null, null, null, null);
while (cursor.moveToNext()) {
String name = cursor.getString(cursor.getColumnIndexOrThrow("name"));
recordsList.add(name);
}
//关闭数据库
recordsDb.close();
cursor.close();
return recordsList;
}
//模糊查询
public List querySimlarRecord(String record){
String queryStr = "select * from records where name like '%" + record + "%' order by name ";
List similarRecords = new ArrayList<>();
Cursor cursor= recordHelper.getReadableDatabase().rawQuery(queryStr,null);
while (cursor.moveToNext()) {
String name = cursor.getString(cursor.getColumnIndexOrThrow("name"));
similarRecords.add(name);
}
cursor.close();
return similarRecords;
}
//清空搜索记录
public void deleteAllRecords() {
recordsDb = recordHelper.getWritableDatabase();
recordsDb.execSQL("delete from records");
recordsDb.close();
}
// 删除
public int delete(int _id) {
SQLiteDatabase db = recordHelper.getWritableDatabase();
int d = db.delete("records", "_id=?", new String[] { _id + "" });
db.close();
return d;
}
} 4.帮助类
public class RecordSQLiteOpenHelper extends SQLiteOpenHelper {
private final static String DB_NAME = "temp.db";
private final static int DB_VERSION = 10;
public RecordSQLiteOpenHelper(Context context) {
super(context, DB_NAME, null, DB_VERSION);
}
@Override
public void onCreate(SQLiteDatabase db) {
String sqlStr = "CREATE TABLE IF NOT EXISTS records (_id INTEGER PRIMARY KEY AUTOINCREMENT, name TEXT);";
db.execSQL(sqlStr);
}
@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
}
}
5.搜索页面布局