<?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:orientation="vertical" >
<TextView
android:id="@+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="TextView" />
<TextView
android:id="@+id/textView2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="TextView" />
<TextView
android:id="@+id/textView3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="TextView" />
</LinearLayout>
2. Java Code
package com.example.qrcodetest;
import....
public class MainActivity extends Activity {
ListView listview;
//建構SimpleAdapter所需之參數，用來放置要顯示在ListView的資訊
ArrayList<HashMap<String,String>> list=new ArrayList<HashMap<String,String>>();
private int requestCode = 1;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
listview = (ListView) findViewById(R.id.listView1);
}
public void but_onclic(View v) {
//啟動QR-Code Scanner，此為固定步驟
Intent intent = new Intent("com.google.zxing.client.android.SCAN");
intent.putExtra("SCAN_MODE", "QR_CODE_MODE");
startActivityForResult(intent, requestCode);
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
// TODO Auto-generated method stub
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == 1) {
if (resultCode == RESULT_OK) {
//取回掃描到的資料
String content = data.getStringExtra("SCAN_RESULT");
//切割字串資料
String[] result = content.split("\n");
//宣告HashMap<String,String>，並將切割好的資料一一放入
HashMap<String,String>latte=new HashMap<String,String>();
if(result.length>0){
latte.put("name", result[0]);
latte.put("tel", result[1]);
latte.put("addr", result[2]);
}
//再將HashMap放回ArrayList，準備建構SimpleAdapter
list.add(latte);
importData2List();
}
}else{
Toast.makeText(this, "scan error", Toast.LENGTH_SHORT).show();
}
}
private void importData2List() {
// TODO Auto-generated method stub
SimpleAdapter simpleadapter = new SimpleAdapter(
this, //設定接口環境
list, //設定接口集合容器(ArrayList)
R.layout.raw,//資料顯示用的UI XML檔
new String[] { "name", "tel", "addr" },//資料欄位相對於Key
new int[] { R.id.textView1, R.id.textView2, R.id.textView3 }//資料顯示UI元件的id
);
listview.setAdapter(simpleadapter);
}
}
