点击listView的具体内容，进入其他activity中

淩亂°似流年 2022-08-06 05:16 150阅读 0赞

我在android app中有一个搜索框，通过搜索展示一个ListView，我想在对应的选择项点击之后进入该app的其他activity中,应该怎么做？ 我的代码如下：

import java.util.ArrayList;
    import java.util.HashMap;
    import java.util.List;
    import android.app.Activity;
    import android.os.Bundle;
    import android.view.Menu;
    import android.view.View;
    import android.widget.AdapterView;
    import android.widget.AdapterView.OnItemClickListener;
    import android.widget.SimpleAdapter;
    import android.widget.TextView;
     
     
    public class MainActivity extends Activity {
     
        List<hashmap<string,string>> adp;
        // Array of strings storing country names
        String[] countries = new String[] {
                "India",
                "Pakistan",
                "Sri Lanka",
                "China",
                "Bangladesh",
                "Nepal",
                "Afghanistan",
                "North Korea",
                "South Korea",
                "Japan"
        };
     
     //  代表图片的int指针集合，图片存储在 /res/drawable-ldpi/
        int[] flags = new int[]{
                    R.drawable.india,
                    R.drawable.pakistan,
                    R.drawable.srilanka,
                    R.drawable.china,
                    R.drawable.bangladesh,
                    R.drawable.nepal,
                    R.drawable.afghanistan,
                    R.drawable.nkorea,
                    R.drawable.skorea,
                    R.drawable.japan
      
        };
     
        // Array of strings to store currencies 
        String[] currency = new String[]{
            "Indian Rupee",
            "Pakistani Rupee",
            "Sri Lankan Rupee",
            "Renminbi",
            "Bangladeshi Taka",
            "Nepalese Rupee",
            "Afghani",
            "North Korean Won",
            "South Korean Won",
            "Japanese Yen"
        };
     
     
     
     
        @Override
        public void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_main);
     
     
            // 遍历map获得每一个名称，标示
            List<hashmap<string,string>> aList = new ArrayList<hashmap<string,string>>();
     
            for(int i=0;i<10;i++){
                    HashMap<string, string=""> hm = new HashMap<string,string>();
                hm.put("txt", countries[i]);
                hm.put("flag", Integer.toString(flags[i]) );
                hm.put("cur", currency[i]);
                aList.add(hm);
            }
     
            //   中使用的 Keys 
            String[] from = { "flag","txt"};
     
            //   listview_layout 中使用的IDS
            int[] to = { R.id.flag,R.id.txt};
     
            // 怎对每一项创建一个  adapter 
            //  使用 R.layout.listview_layout  定义每一个
            SimpleAdapter adapter = new SimpleAdapter(getBaseContext(), aList, R.layout.autocomplete_layout, from, to);
     
            // 通过 activity_main.xml  配置获得 CustomAutoCompleteTextView 视图
            CustomAutoCompleteTextView autoComplete = ( CustomAutoCompleteTextView) findViewById(R.id.autocomplete);
     
            /**   为 autocompletetextview  定义一个点击项目时间监听*/
            OnItemClickListener itemClickListener = new OnItemClickListener() {
                @Override
                public void onItemClick(AdapterView arg0, View arg1, int position, long id) {
     
     
                }
            };
     
            /**   设置事件*/
            autoComplete.setOnItemClickListener(itemClickListener);
     
            /**  设置 adapter */
            autoComplete.setAdapter(adapter);
     
        }
     
        /** 
            回调方法，在activity  被kill掉的时候执行
          主要是用来保存当前activity 的状态
         */
        @Override
        protected void onSaveInstanceState(Bundle outState) {
            TextView tvCurrency = (TextView) findViewById(R.id.tv_currency) ;
            outState.putString("currency", tvCurrency.getText().toString());
            super.onSaveInstanceState(outState);
        }
     
        /** A callback method, which is executed when the activity is recreated 
              回调方法，在activity 被重建的时候执行
      
         */
        @Override
        protected void onRestoreInstanceState(Bundle savedInstanceState) {
            TextView tvCurrency = (TextView) findViewById(R.id.tv_currency) ;
            tvCurrency.setText(savedInstanceState.getString("currency"));
            super.onRestoreInstanceState(savedInstanceState);
        }
     
     
        @Override
        public boolean onCreateOptionsMenu(Menu menu) {
            getMenuInflater().inflate(R.menu.activity_main, menu);
            return true;
        }
    }</string,string></string,></hashmap<string,string></hashmap<string,string></hashmap<string,string>

### 处理方法 ###

第一步：在 AndroidManifest 中声明你的activity被调用  
<application  
.  
...          
   
     <activity  
            android:name="com.hello.world.MainActivity">  
            <intent-filter>  
                <action android:name="android.intent.action.MAIN" />  
                <category android:name="android.intent.category.LAUNCHER" />  
            </intent-filter>  
        </activity>  
        <activity  
            android:name="com.hello.world.MyNextActivity"/>  
.  
...

</application>

第二步：在你点事件中添加如下代码.

/\*\* Defining an itemclick event listener for the autocompletetextview \*/  
    OnItemClickListener itemClickListener = new OnItemClickListener() \{  
        @Override  
        public void onItemClick(AdapterView<?> arg0, View arg1, int position, long id) \{  
             Intent intent = new Intent(MainActivity.this, MyNextActivity.class);  
             //Get the value of the item you clicked  
             String itemClicked = countries\[position\];  
             intent.putExtra("country", itemClicked);  
             startActivity(intent);

\}  
 \};

第三步：在你的activity通过onCreate方法接受值

protected void onCreate(Bundle savedInstanceState) \{  
    super.onCreate(savedInstanceState);  
    setContentView(R.layout.download\_pads\_layout);

String country = getIntent().getStringExtra("country");

原文地址：[http://www.itmmd.com/201411/148.html][http_www.itmmd.com_201411_148.html]   
该文章由 [萌萌的IT人][IT] 整理发布,转载须标明出处。

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