如何使用AutoCompleteTextView下拉列表中的seletedItem？

朋友們，我使用AutoCompleteTextView。該建議：如何使用AutoCompleteTextView下拉列表中的seletedItem？

String[] recipes={ "Fish", "Chicken", "Mutton"};

如何做到這一點：

當我從下拉列表中的項目之一，它會去到另一個事件？

例如，I型網絡，它會從下拉列表中走出來魚，然後我選擇魚，它會去另一個活動。

package net.learn2develop.Activities; 

import android.app.Activity; 
import android.os.Bundle; 
import android.widget.ArrayAdapter; 
import android.widget.AutoCompleteTextView; 
import android.widget.AdapterView.OnItemSelectedListener; 
import android.widget.AdapterView; 
import android.view.View; 
import android.content.Intent; 

public class AutoCompleteTextActivity extends Activity { 

String[] recipes ={ 
     "Nasi Lemak With Ikan Bilis", 
     "Steamed Cod Fish" 
}; 
    /** Called when the activity is first created. */ 
    @Override 
    public void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.main); 

    ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,    android.R.layout.simple_dropdown_item_1line, recipes); 


    AutoCompleteTextView textView = (AutoCompleteTextView) findViewById(R.id.txtRecipes); 

    textView.setThreshold(3); 
    textView.setAdapter(adapter); 

    textView.setOnItemSelectedListener(new OnItemClickListener(){ 
     public void onItemClick(AdapterView<?> av, View view, int index, long id){ 

      Intent i=new Intent(this,Activity2.class); 
      i.putExtra("item",recipes[index]); 
      StartActivity(i); 
     } 

    }); 
}

}

來源

2012-06-06 user1438955

您可以使用實現TextWatcher一個類並重寫下列方法：

 @Override 
     public void afterTextChanged(final Editable editable) { 
      // check if entered text is "fish" and if yes then start the new activity. 
     } 


     @Override 
     public void beforeTextChanged(final CharSequence string, 
       final int start, final int count, final int after) { 
     } 


     @Override 
     public void onTextChanged(final CharSequence string, final int start, 
       final int before, final int count) { 
     } 
}

來源

2012-06-06 06:33:02 Shrikant

receipesBelow片段會幫助你。

autoCompleteTextView.setOnItemSelectedListener(new OnItemSelectedListener() 
      { 

       @Override 
       public void onItemSelected(AdapterView<?> av, View view, 
         int index, long id) 
       { 
        //index will give you item which you selected 
            Now start another activity here 
            Intent i=new Intent(context,SecondActivity.class); 
            i.putExtra("item",recipes[index]); 
            StartActivity(i); 


       } 

       @Override 
       public void onNothingSelected(AdapterView<?> arg0) 
       { 
        // TODO Auto-generated method stub 

       } 
      })

SecondActivity.java

您可以檢索值的onCreate像下面

String selectedItem=getIntent().getStringExtra("item");

來源

2012-06-06 06:34:10

我對setOnItemSelectedListener錯誤..我有進口的財產以後？ – user1438955

你有什麼錯誤！如果你將光標指向紅線，你將會看到錯誤。 –

錯誤顯示：在類型AutoCompleteTextView的方法setOnItemSelectedListener（AdapterView.OnItemSelectedListener）不適用於參數（新OnItemClickListener {}） – user1438955

你應該使用setOnItemClickListener代替setOnItemSelectedListener。

來源

2017-01-09 09:38:13

如何使用AutoCompleteTextView下拉列表中的seletedItem？

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