为什么AutoCompleteTextView不起作用

Question

AutoCompleteTextView无效。我是Android的初学者。我在模拟器中没有错误

我的代码如下：

MainActivity

package com.example.stackflow_test2;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.AdapterView.OnItemSelectedListener;
import android.widget.ArrayAdapter;
import android.widget.AutoCompleteTextView;
import android.widget.EditText;
import android.widget.Toast;

public class MainActivity extends Activity {

    AutoCompleteTextView act;
    String[] country={"France ","USA","Bangladesh","Canada","Other"};
    ArrayAdapter<String> adapter;

    EditText et1;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        et1=(EditText)findViewById(R.id.editText1);
        Toast.makeText(getApplicationContext(), et1.getText().toString(), Toast.LENGTH_LONG).show();
        //et1.setEnabled(false);



        act=(AutoCompleteTextView)findViewById(R.id.autoCompleteTextView1);
        adapter=new ArrayAdapter<String>(getApplicationContext(), android.R.layout.simple_spinner_item, country);


    }




}

Answer 1

尝试这一步........

act.setAdapter(adapter);