Question

我正在制作用户autocompleteTextview的应用。当用户通过addTextChangedListener键入任何内容时，建议来自服务器的建议但很多时候用户可能没有直接选择建议和输入并移动但我希望该用户只选择建议的项目。

Answer 1

<强>输出

点击删除按钮后

我在之前的项目中实现了这一点，我已经为您尝试创建了演示：

XML文件

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="com.example.user31.demosforstack.AutocomplateTextVIew">

    <AutoCompleteTextView
        android:id="@+id/autoComplateText"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:hint="Search here" />

</LinearLayout>

JAVA文件

package com.example.user31.demosforstack;

import android.content.Context;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.text.InputType;
import android.util.Log;
import android.view.MotionEvent;
import android.view.View;
import android.view.inputmethod.InputMethodManager;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.AutoCompleteTextView;

import java.util.ArrayList;

public class AutocomplateTextVIew extends AppCompatActivity {

    AutoCompleteTextView autoComplateText;
    ArrayAdapter arrayAdapter;
    ArrayList<String> arrayList;
    boolean isSelect = false;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_autocomplate_text_view);

        arrayList = new ArrayList();
        for (int i = 0; i < 10; i++) {
            arrayList.add("item " + i);
        }

        autoComplateText = findViewById(R.id.autoComplateText);
        arrayAdapter = new ArrayAdapter(this, android.R.layout.simple_expandable_list_item_1, arrayList);
        autoComplateText.setAdapter(arrayAdapter);
        autoComplateText.setThreshold(2);

        autoComplateText.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {

                String item = (String) parent.getAdapter().getItem(position);
                isSelect = true;

                autoComplateText.setCompoundDrawablesWithIntrinsicBounds(0, 0, R.drawable.remove, 0);

                Log.e("Item: ", item);
                autoComplateText.setInputType(InputType.TYPE_NULL);

                ((InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE)).hideSoftInputFromWindow(autoComplateText.getWindowToken(), 0);

            }
        });

        autoComplateText.setOnTouchListener(new View.OnTouchListener() {
            @Override
            public boolean onTouch(View v, MotionEvent event) {
                int DRAWABLE_RIGHT = 2;

                if (event.getAction() == MotionEvent.ACTION_UP) {

                    if (autoComplateText != null){
                        ((InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE)).hideSoftInputFromWindow(autoComplateText.getWindowToken(), 0);

                        if (event.getRawX() >= (autoComplateText.getRight() - autoComplateText.getCompoundDrawables()[DRAWABLE_RIGHT].getBounds().width())) {
                            autoComplateText.setText("");
                            autoComplateText.setCompoundDrawablesWithIntrinsicBounds(0, 0, 0, 0);
                            isSelect = false;
                            return true;
                        }
                    }



                }

                return false;
            }
        });


    }
}

如何仅选择自动完成的textview建议

1 个答案: