实现了edittext自动带出提示类似AutoCompleteTextview功能，及点击edittext实现弹出dialog选择数据类似Spinner得功能
这个自定义View就是AutoCompleteTextview+Spinner的组合实现
```
使用方法：
List list =new ArrayList<>();
list.add("xxx");
list.add("xxx1");
list.add("xxx2");
list.add("xxssx");
list.add("xqqqxx");
//设置初始数据
autoName.setPromptata(list);
//设置文字内容 切记不要使用setText
autoName.setNewText("");
//设置只读-不可点击操作
autoName.setReadOnly(true);
//设置是否可以输入上述list内容之外的数据
autoName.setCanInputOther(true);
```
如果对你有帮助点个赞吧
icon_arrow_down
```
import android.annotation.SuppressLint;
import android.app.AlertDialog;
import android.content.Context;
import android.graphics.drawable.ColorDrawable;
import android.graphics.drawable.Drawable;
import android.os.Handler;
import android.text.Editable;
import android.text.TextUtils;
import android.text.TextWatcher;
import android.util.AttributeSet;
import android.view.LayoutInflater;
import android.view.MotionEvent;
import android.view.View;
import android.view.ViewGroup;
import android.view.WindowManager;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.PopupWindow;
import androidx.appcompat.widget.AppCompatEditText;
import androidx.core.content.ContextCompat;
import com.hzy.modulebase.R;
import java.util.ArrayList;
import java.util.List;
/**
* 自定义可自动完成文本并提示的，可以进行直接选择的edittext
*
* @author zhangjian
* date:2020/5/20.
*/
public class MyAutoCompleteEdittext extends AppCompatEditText {
private static final int TEMP_CLICK =50;
private Context mContext;
/**
* 赋值的操作
*/
private boolean isSel;
Handler myCarhandler =new Handler();
private PopupWindow mPopWindow;
/**
* 筛选的全部数据
*/
private List<String> mDatas;
/**
* 筛选出的数据
*/
private List<String> tempData;
private ArrayAdapter mAdapter;
/**
* edittext得宽度
*/
private int width;
/**
* 是否可以输入其他数据
*/
private boolean canInputOther;
public MyAutoCompleteEdittext(Context context) {
super(context);
init(context);
}
public MyAutoCompleteEdittext(Context context, AttributeSet attrs) {
super(context, attrs);
init(context);
}
public MyAutoCompleteEdittext(Context context, AttributeSet attrs,int defStyleAttr) {
super(context, attrs, defStyleAttr);
init(context);
}
@Override
protected void onMeasure(int widthMeasureSpec,int heightMeasureSpec) {
super.onMeasure(widthMeasureSpec, heightMeasureSpec);
width = MeasureSpec.getSize(widthMeasureSpec);
if (mPopWindow !=null) {
mPopWindow.setWidth(width);
}
}
@Override
@SuppressLint("ClickableViewAccessibility")
public boolean onTouchEvent(MotionEvent event) {
if (event.getAction() == MotionEvent.ACTION_DOWN) {
Drawable rightDrawable = getCompoundDrawables()[2];
if (rightDrawable !=null && event.getRawX() >= (getRight() -rightDrawable.getBounds().width() -TEMP_CLICK)) {
showNameSelect();
return false;
}
}
return super.onTouchEvent(event);
}
private void init(Context context) {
mContext = context;
canInputOther =false;
addTextChangedListener(mTextWatcher);
tempData =new ArrayList<>();
Drawable drawable = ContextCompat.getDrawable(mContext, R.mipmap.icon_arrows_down);
drawable.setBounds(0,0,drawable.getMinimumWidth(),drawable.getMinimumHeight());
setCompoundDrawables(null,null,drawable,null);
setCompoundDrawablePadding(10);
initPopuWindow();
}
/**
* 初始化PopupWindow 关键代码
*/
private void initPopuWindow() {
LayoutInflater inflater = (LayoutInflater)mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View view =inflater.inflate(R.layout.popup_option,null);
mPopWindow =new PopupWindow(mContext);
mPopWindow.setContentView(view);
mPopWindow.setWidth(width);
mPopWindow.setHeight(ViewGroup.LayoutParams.WRAP_CONTENT);
mPopWindow.setBackgroundDrawable(new ColorDrawable(0xb0000000));
mPopWindow.setFocusable(false);
mPopWindow.setOutsideTouchable(true);
mPopWindow.setInputMethodMode(PopupWindow.INPUT_METHOD_NEEDED);
mPopWindow.setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE);
mPopWindow.setOnDismissListener(() -> {
if (!checkDataQualified()) {
setNewText("");
}
});
ListView listView =view.findViewById(R.id.lv_data);
mAdapter =new ArrayAdapter<>(mContext, android.R.layout.simple_list_item_1,tempData);
listView.setAdapter(mAdapter);
listView.setOnItemClickListener((parent, view1, position, id) -> {
mPopWindow.dismiss();
setNewText(mAdapter.getItem(position));
});
}
private TextWatcher mTextWatcher =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) {
}
@Override
public void afterTextChanged(Editable s) {
if (isSel) {
isSel =false;
return;
}
if (mDatas ==null) {
return;
}
myCarhandler.post(carChangeRunnable);
}
};
private Runnable carChangeRunnable = () -> {
String data = getText().toString().trim();
getNewData(data);
};
/**
* 获取筛选数据
*
* @param msg
*/
private void getNewData(String msg) {
tempData.clear();
if (TextUtils.isEmpty(msg)) {
if (mPopWindow !=null) {
mPopWindow.dismiss();
}
return;
}else {
for (String data :mDatas) {
if (data.contains(msg)) {
tempData.add(data);
}
}
}
if (tempData.size() ==0) {
if (canInputOther) {
if (mPopWindow !=null) {
mPopWindow.dismiss();
}
return;
}else {
//不能输入其他默认有一项显示位置
tempData.add("");
}
}
if (mPopWindow !=null && !mPopWindow.isShowing()) {
mPopWindow.showAsDropDown(this);
}
mAdapter.notifyDataSetChanged();
}
/**
* 检测数据是否是list中数据
*
* @return true (未给定集合)存在 false不存在
*/
private boolean checkDataQualified() {
if (!canInputOther &&mDatas !=null) {
Stringmsg = getText().toString().trim();
return mDatas.contains(msg);
}
return true;
}
/**
* 显示选择
*/
private void showNameSelect() {
if (mDatas ==null) {
return;
}
ArrayAdapter userAdapter = new ArrayAdapter<>(mContext, android.R.layout.simple_expandable_list_item_1,mDatas);
AlertDialog.Builder builder =new AlertDialog.Builder(mContext);
builder.setAdapter(userAdapter, (dialog, which) -> {
dialog.dismiss();
setNewText(userAdapter.getItem(which));
});
builder.create().show();
}
/**
* 设置自动提示数据
*
* @param datas datas.
*/
public void setPromptata(List datas) {
mDatas = datas;
}
/**
* 设置text
*
* @param text 内容
*/
public void setNewText(String text) {
isSel =true;
setText(text);
if (!TextUtils.isEmpty(text)) {
setSelection(text.length());
}
}
/**
* 设置只读
*/
public void setReadOnly(boolean canEdit) {
if (!canEdit) {
setEnabled(false);
setCompoundDrawables(null,null,null,null);
}
}
/**
* 设置是否可以输入列表之外数据
* 默认不可以
*
* @param canInput 可以输入
*/
public void setCanInputOther(boolean canInput) {
canInputOther = canInput;
}
/**
* 销毁
*/
public void onDestroy() {
myCarhandler.removeCallbacksAndMessages(null);
if (mPopWindow !=null) {
mPopWindow.dismiss();
}
removeTextChangedListener(mTextWatcher);
}
}
```
popup_option.xml
```
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#E7E7E7"
android:orientation="vertical">
<ListView android:id="@+id/lv_data"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:listSelector="@color/float_transparent"/>
</LinearLayout>
```
网友评论