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   源码介绍

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package com.example.scannertest;

import com.google.zxing.client.android.CaptureActivity;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;

public class MainActivity extends Activity {

	public static final int SCAN_CODE = 1;

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
		Button button = (Button) findViewById(R.id.scan_button);
		button.setOnClickListener(new OnClickListener() {
			@Override
			public void onClick(View v) {
				Intent intent = new Intent(MainActivity.this, CaptureActivity.class);
				startActivityForResult(intent, SCAN_CODE);
			}
		});
	}

	@Override
	protected void onActivityResult(int requestCode, int resultCode, Intent data) {
		switch (requestCode) {
		case SCAN_CODE:
			TextView scanResult = (TextView) findViewById(R.id.scan_result);
			if (resultCode == RESULT_OK) {
				String result = data.getStringExtra("scan_result");
				scanResult.setText(result);
			} else if (resultCode == RESULT_CANCELED) {
				scanResult.setText("没有扫描出结果");
			}
			break;
		default:
			break;
		}
	}

}