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最新推荐文章于 2022-01-15 15:41:48 发布

原创最新推荐文章于 2022-01-15 15:41:48 发布 · 515 阅读

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本文介绍了一个简单的Android应用程序，用于生成和扫描二维码。该应用通过MainActivity实现了二维码的生成和解析功能，利用了Zxing库进行二维码操作。用户可以输入文本内容来生成对应的二维码，并通过扫描功能读取二维码信息。

<span id="_xhe_cursor">//关联  Zxing包
</span>

package com.dasudian.qrcode;

import com.xys.libzxing.zxing.activity.CaptureActivity;
import com.xys.libzxing.zxing.encoding.EncodingUtils;

import android.app.Activity;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.Bundle;
import android.view.View;
import android.widget.CheckBox;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;


public class MainActivity extends Activity {

	private TextView mTvResult;
	private EditText mInput;
	private ImageView mResult;
	private CheckBox mLogo;

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);

		mTvResult = (TextView) findViewById(R.id.tv_result);
		mInput = (EditText) findViewById(R.id.et_text);
		mResult = (ImageView) findViewById(R.id.iv_result);
		mLogo = (CheckBox) findViewById(R.id.cb_logo);
	}

	public void scan(View view) {
		startActivityForResult(new Intent(MainActivity.this,
				CaptureActivity.class), 0);
	}

	public void make(View view) {
		String input = mInput.getText().toString();
		if (input.trim().equals("")) {
			Toast.makeText(MainActivity.this, "内容不能为空", Toast.LENGTH_LONG)
					.show();
		} else {
			//EncodingUtils.createQRCode(content, widthPix, heightPix, logoBm)
			Bitmap bitmap = EncodingUtils.createQRCode(input,500,500,mLogo.isChecked() ? BitmapFactory.decodeResource(getResources(), R.mipmap.ic_launcher) : null);
			mResult.setImageBitmap(bitmap);
		}
	}

	@Override
	protected void onActivityResult(int requestCode, int resultCode, Intent data) {
		super.onActivityResult(requestCode, resultCode, data);
		if (resultCode == RESULT_OK) {
			Bundle bundle = data.getExtras();
			String result = bundle.getString("result");
			mTvResult.setText(result);
		}
	}
}

//关联 Zxing包下载地址：http://download.youkuaiyun.com/detail/runingling/9603906