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這篇文章主要講解了“ListView可編輯選擇與刪除條目怎么實(shí)現(xiàn)”,文中的講解內(nèi)容簡(jiǎn)單清晰,易于學(xué)習(xí)與理解,下面請(qǐng)大家跟著小編的思路慢慢深入,一起來(lái)研究和學(xué)習(xí)“ListView可編輯選擇與刪除條目怎么實(shí)現(xiàn)”吧!
封裝列表控件,使其條目具有可編輯選擇、刪除等功能。
dependencies{ compile 'com.wkp:EditListView:1.0.2' //Android Studio3.0+可用以下方式 //implementation 'com.wkp:EditListView:1.0.2' }
屬性講解
<!--是否開(kāi)啟測(cè)量高度--> <attr name="wkp_measureHeight" format="boolean"/> <!--未選中狀態(tài)時(shí)圖標(biāo)--> <attr name="wkp_uncheckedImg" format="reference"/> <!--選中狀態(tài)時(shí)圖標(biāo)--> <attr name="wkp_checkedImg" format="reference"/> <!--編輯/退出編輯動(dòng)畫(huà)時(shí)長(zhǎng)(默認(rèn)200)--> <attr name="wkp_editAnimDuration" format="integer"/>
布局示例
<!--activity_main.xml--> <?xml version="1.0" encoding="utf-8"?> <ScrollView 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:id="@+id/sv" android:layout_width="match_parent" android:layout_height="wrap_content"> <LinearLayout android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical"> <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="horizontal"> <TextView android:id="@+id/delete" android:onClick="delete" android:layout_width="0dp" android:layout_height="wrap_content" android:layout_weight="1" android:gravity="center" android:padding="@dimen/len_5dp" android:text="刪除"/> <TextView android:id="@+id/edit" android:onClick="edit" android:layout_width="0dp" android:layout_height="wrap_content" android:layout_weight="1" android:gravity="center" android:padding="@dimen/len_5dp" android:text="編輯"/> <TextView android:id="@+id/exit_edit" android:onClick="exitEdit" android:layout_width="0dp" android:layout_height="wrap_content" android:layout_weight="1" android:gravity="center" android:padding="@dimen/len_5dp" android:text="退出編輯"/> <TextView android:id="@+id/select_all" android:onClick="selectAll" android:layout_width="0dp" android:layout_height="wrap_content" android:layout_weight="1" android:gravity="center" android:padding="@dimen/len_5dp" android:text="全選"/> <TextView android:id="@+id/select_none" android:onClick="selectNone" android:layout_width="0dp" android:layout_height="wrap_content" android:layout_weight="1" android:gravity="center" android:padding="@dimen/len_5dp" android:text="全不選"/> </LinearLayout> <com.wkp.editlistview_library.view.EditListView android:id="@+id/lv" app:wkp_checkedImg="@drawable/ic_checked" app:wkp_uncheckedImg="@drawable/ic_uncheck" app:wkp_measureHeight="true" android:layout_width="match_parent" android:layout_height="wrap_content"></com.wkp.editlistview_library.view.EditListView> </LinearLayout> </ScrollView> <!--item_lv.xml--> <?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent"> <TextView android:id="@+id/item_tv" android:padding="10dp" android:layout_width="wrap_content" android:layout_height="wrap_content"/> <TextView android:padding="10dp" android:layout_alignParentRight="true" android:text="新" android:textColor="@android:color/white" android:background="@android:color/holo_red_light" android:layout_width="wrap_content" android:layout_height="wrap_content"/> </RelativeLayout>
代碼示例
/** * kotlin用法 */ @RequiresApi(Build.VERSION_CODES.KITKAT) class MainActivity : AppCompatActivity() { private val data = arrayListOf<String>("托兒索", "兒童劫", "小學(xué)僧", "橡皮妮", "喜之螂", "提款姬", "魚(yú)尾雯", "雞毛信", "娃娃魚(yú)", "過(guò)家嘉", "尿不獅", "沙琪馬", "阿童木", "大嘴猴", "香港皎") private var mListView: EditListView? = null override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) setContentView(R.layout.activity_main) mListView = findViewById<EditListView>(R.id.lv) val adapter = ArrayAdapter(this, android.R.layout.simple_list_item_1, android.R.id.text1, data) //設(shè)置適配器 mListView!!.adapter = adapter //設(shè)置是否測(cè)量高度(解決ScrollView沖突) // mListView!!.setMeasureHeight(true) //長(zhǎng)按監(jiān)聽(tīng) mListView!!.setOnItemLongClickListener({ parent, view, position, id -> //開(kāi)啟編輯狀態(tài) mListView!!.isEditState = true //設(shè)置長(zhǎng)按條目選中狀態(tài) mListView!!.setItemChecked(position, true) //返回false會(huì)導(dǎo)致OnItemClickListener調(diào)用,使以上的選中狀態(tài)消失 true }) //設(shè)置所有條目選中/未選中監(jiān)聽(tīng)(每次條目狀態(tài)改變都會(huì)回調(diào)) mListView!!.setOnAllItemCheckedListener { checked -> Log.d("MainActivity", "checked:" + checked) } } //刪除按鈕 fun delete(view: View) { //刪除所有已選中條目(adapter的源數(shù)據(jù)為數(shù)組時(shí)不支持轉(zhuǎn)換) mListView!!.deleteAllCheckedItem(data) } // 編輯按鈕 fun edit(view: View) { // 開(kāi)啟編輯狀態(tài) mListView!!.isEditState = true } // 退出編輯按鈕 fun exitEdit(view: View) { // 關(guān)閉編輯狀態(tài) mListView!!.isEditState = false } // 全選按鈕 fun selectAll(view: View) { // 全選 mListView!!.setAllItemChecked() //是否全選 Log.d("MainActivity","isAllItemChecked:" + mListView!!.isAllItemChecked) } // 全不選按鈕 fun selectNone(view: View) { // 全不選 mListView!!.setAllItemUnchecked() //是否全不選 Log.d("MainActivity","isAllItemUnchecked:" + mListView!!.isAllItemUnchecked) } } /** * Created by user on 2017/11/6. * java用法 */ @RequiresApi(api = Build.VERSION_CODES.KITKAT) public class TestActivity extends AppCompatActivity { private String[] mStrings = {"托兒索", "兒童劫", "小學(xué)僧", "橡皮妮", "喜之螂", "提款姬", "魚(yú)尾雯", "雞毛信", "娃娃魚(yú)", "過(guò)家嘉", "尿不獅", "沙琪馬", "阿童木", "大嘴猴", "香港皎","腦殘片","賣(mài)賣(mài)賣(mài)","333","干干干"}; private List<String> data = new ArrayList<>(); private EditListView mListView; { data.addAll(Arrays.asList(mStrings)); } @Override protected void onCreate(@Nullable Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); mListView = findViewById(R.id.lv); //設(shè)置編輯/退出編輯動(dòng)畫(huà)時(shí)長(zhǎng) mListView.setAnimDuration(400); //設(shè)置適配器 mListView.setAdapter(new ArrayAdapter<String>(this,R.layout.item_lv,R.id.item_tv,data)); //條目長(zhǎng)按監(jiān)聽(tīng) mListView.setOnItemLongClickListener(new AdapterView.OnItemLongClickListener() { @Override public boolean onItemLongClick(AdapterView<?> parent, View view, int position, long id) { //開(kāi)啟編輯狀態(tài) mListView.setEditState(true); //設(shè)置長(zhǎng)按條目選中狀態(tài) mListView.setItemChecked(position,true); //返回false會(huì)導(dǎo)致OnItemClickListener調(diào)用,使以上的選中狀態(tài)消失 return true; } }); //設(shè)置所有條目選中/未選中監(jiān)聽(tīng)(每次條目狀態(tài)改變都會(huì)回調(diào)) mListView.setOnAllItemCheckedListener(new EditListView.OnAllItemCheckedListener() { @Override public void onAllItemChecked(boolean checked) { Log.d("TestActivity", "checked:" + checked); } }); } //刪除按鈕 public void delete(View view) { //刪除所有已選中條目(adapter的源數(shù)據(jù)為數(shù)組時(shí)不支持轉(zhuǎn)換) mListView.deleteAllCheckedItem(data); } //編輯按鈕 public void edit(View view) { //開(kāi)啟編輯狀態(tài) mListView.setEditState(true); } //退出編輯按鈕 public void exitEdit(View view) { //關(guān)閉編輯狀態(tài) mListView.setEditState(false); } //全選按鈕 public void selectAll(View view) { //全選 mListView.setAllItemChecked(); //是否全選 Log.d("MainActivity", "isAllItemChecked:" + mListView.isAllItemChecked()); } //全不選按鈕 public void selectNone(View view) { //全不選 mListView.setAllItemUnchecked(); //是否全不選 Log.d("MainActivity", "isAllItemUnchecked:" + mListView.isAllItemUnchecked()); } }
感謝各位的閱讀,以上就是“ListView可編輯選擇與刪除條目怎么實(shí)現(xiàn)”的內(nèi)容了,經(jīng)過(guò)本文的學(xué)習(xí)后,相信大家對(duì)ListView可編輯選擇與刪除條目怎么實(shí)現(xiàn)這一問(wèn)題有了更深刻的體會(huì),具體使用情況還需要大家實(shí)踐驗(yàn)證。這里是億速云,小編將為大家推送更多相關(guān)知識(shí)點(diǎn)的文章,歡迎關(guān)注!
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