//清空本地历史
public void cleanHistory() {
SharedPreferences.Editor editor = mSharePreference.edit();
editor.clear();
mit();
updateData();
mSearchHistoryLl.setVisibility(View.GONE);
SingleToast.show(this, getString(R.string.clear_history_success), Toast.LENGTH_SHORT);
}
Ps:AutoCompleteTextView 还有一个小问题 默认是从第二个字符开始匹配的
如果设置输入第一个字符就进行提示 加入下面这行代码autotext.setThreshold(1);
上面大概介绍了一下AutoCompleteTextView这个控件。但是我们的项目要做的是 显示出所有搜索的历史记录 效果图是这样的
想了一下 用 AutoCompleteTextView 不太合适 决定自己用listView 实现 话不多说 直接上代码
下拉弹出layout布局
<LinearLayout
android:id="@+id/search_history_ll"
android:orientation=“vertical”
android:layout_width=“match_parent”
android:layout_below="@id/global_search_action_bar_rl"
android:layout_height=“wrap_content”>
<TextView
android:id="@+id/contentTextView"
android:layout_width=“wrap_content”
android:layout_height=“wrap_content”
android:textSize="@dimen/text_size_title_h2"
android:text="@string/search_history"
android:paddingLeft=“10dp”
android:textColor="@color/text_gray"/>
<ListView
android:id="@+id/search_history_lv"
android:layout_width=“match_parent”
android:layout_height=“wrap_content”
android:cacheColorHint="@android:color/transparent"
android:listSelector="@drawable/list_item_selector">
<Button
android:id="@+id/clear_history_btn"
android:layout_width=“210dp”
android:layout_height="@dimen/button_common_height"
android:layout_below="@id/rise_crash_ll"
android:layout_marginTop=“5dp”
android:textColor="@color/text_btn_selector"
android:layout_gravity=“center”
android:textSize="@dimen/text_size_title_h2"
android:layout_centerHorizontal=“true”
android:text="@string/clear_search_history"
android:background="@drawable/round_btn_selector"
style="?android:buttonBarButtonStyle"/>
activity 的代码
import android.content.SharedPreferences;
import android.os.Bundle;
import android.text.Editable;
import android.text.TextUtils;
import android.text.TextWatcher;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;
import video.R;
import com.yizhibo.video.adapter.SearchAdapter;
import com.yizhibo.video.app.YZBApplication;
import com.yizhibo.video.base.BaseListActivity;
import com.yizhibo.video.utils.Constants;
import com.yizhibo.video.utils.SingleToast;
import com.yizhibo.video.utils.Utils;
public class SearchListActivity extends BaseListActivity implements View.OnClickListener {
public static final String EXTRA_KEY_TYPE = “extra_key_type”;
private static final String PRE_SEARCH_HISTORY = “pre_search_history”;
private static final String SEARCH_HISTORY = “search_history”;
private EditText mKeywordEt;
private TextView mOperationTv;
private ArrayAdapter mArrAdapter;
private SharedPreferences mSharePreference;
private LinearLayout mSearchHistoryLl;
private List mHistoryKeywords;
private ListView mListView;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mSharePreference = YZBApplication.getApp().getSharedPreferences(PRE_SEARCH_HISTORY, 0);
setContentView(R.layout.activity_search_list);
mKeywordEt = (EditText) findViewById(R.id.tab_bar_keyword_et);
mHistoryKeywords = new ArrayList();
mKeywordEt.addTextChangedListener(new TextWatcher() {
@Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
if (s.length() == 0) {
mAdapter.clear();
mAdapter.notifyDataSetChanged();
mOperationTv.setText(R.string.cancel);
mEmptyView.hide();
clearKeywordIv.setVisibility(View.GONE);
if (mHistoryKeywords.size() > 0) {
mSearchHistoryLl.setVisibility(View.VISIBLE);
} else {
mSearchHistoryLl.setVisibility(View.GONE);
}
} else {
mSearchHistoryLl.setVisibility(View.GONE);
mOperationTv.setText(R.string.search);
clearKeywordIv.setVisibility(View.VISIBLE);
}
}
@Override
public void afterTextChanged(Editable s) {
}
});
mKeywordEt.requestFocus();
mOperationTv = (TextView) findViewById(R.id.tab_bar_cancel_tv);
mOperationTv.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (mKeywordEt.getText().length() > 0) {
hideInputMethod();
save();
} else {
finish();
}
}
});
initSearchHistory();
}
public void initSearchHistory() {
mSearchHistoryLl = (LinearLayout) findViewById(R.id.search_history_ll);
ListView listView = (ListView) findViewById(R.id.search_history_lv);
findViewById(R.id.clear_history_btn).setOnClickListener(this);
String history = mPref.getString(Preferences.KEY_SEARCH_HISTORY_KEYWORD);
if
(!TextUtils.isEmpty(history)){
List list = new ArrayList();
for(Object o : history.split(",")) {
list.add((String)o);
.search_history_lv);
findViewById(R.id.clear_history_btn).setOnClickListener(this);
String history = mPref.getString(Preferences.KEY_SEARCH_HISTORY_KEYWORD);
if [外链图片转存中…(img-wGq3R4Tn-1643348821988)]
(!TextUtils.isEmpty(history)){
List list = new ArrayList();
for(Object o : history.split(",")) {
list.add((String)o);
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