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Android开发框架之自定义ZXing二维码扫描界面并解决取景框拉伸问题
此项目源码地址:请点击这里
看一下zxing的项目结构,我这里直接拿过来用的
看一下扫码的activity:
package com.fanyafeng.barcode.activity; import android.content.Intent; import android.graphics.Bitmap; import android.net.Uri; import android.os.Bundle; import android.support.design.widget.FloatingActionButton; import android.support.design.widget.Snackbar; import android.support.v7.app.AppCompatActivity; import android.support.v7.widget.Toolbar; import android.view.View; import android.widget.TextView; import android.widget.Toast; import com.fanyafeng.barcode.R; import com.fanyafeng.barcode.BaseActivity; import com.fanyafeng.barcode.util.ImageUtil; import com.fanyafeng.barcode.zxing.activity.CaptureActivity; import com.fanyafeng.barcode.zxing.activity.CodeUtils; //需要搭配baseactivity,这里默认为baseactivity,并且默认Baseactivity为包名的根目录 public class ScanCodeActivity extends BaseActivity { /** * 扫描跳转Activity RequestCode */ public static final int REQUEST_CODE = 111; /** * 选择系统图片Request Code */ public static final int REQUEST_IMAGE = 112; /** * 请求CAMERA权限码 */ public static final int REQUEST_CAMERA_PERM = 101; private TextView tvResult; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_scan_code); //这里默认使用的是toolbar的左上角标题,如果需要使用的标题为中心的采用下方注释的代码,将此注释掉即可 title = getString(R.string.title_activity_scan_code); initView(); initData(); } //初始化UI空间 private void initView() { tvResult = (TextView) findViewById(R.id.tvResult); } //初始化数据 private void initData() { } @Override public void onClick(View v) { super.onClick(v); switch (v.getId()) { case R.id.btnScan: Intent intent = new Intent(getApplication(), CaptureActivity.class); startActivityForResult(intent, REQUEST_CODE); // 本地扫描,识别相册中的二维码 // Intent intent = new Intent(Intent.ACTION_GET_CONTENT); // intent.addCategory(Intent.CATEGORY_OPENABLE); // intent.setType("image/*"); // startActivityForResult(intent, REQUEST_IMAGE); break; } } @Override protected void onActivityResult(final int requestCode, int resultCode, Intent data) { super.onActivityResult(requestCode, resultCode, data); /** * 处理二维码扫描结果 */ if (requestCode == REQUEST_CODE) { //处理扫描结果(在界面上显示) if (null != data) { Bundle bundle = data.getExtras(); if (bundle == null) { return; } if (bundle.getInt(CodeUtils.RESULT_TYPE) == CodeUtils.RESULT_SUCCESS) { String result = bundle.getString(CodeUtils.RESULT_STRING); Toast.makeText(this, "解析结果:" + result, Toast.LENGTH_LONG).show(); tvResult.setText(result); } else if (bundle.getInt(CodeUtils.RESULT_TYPE) == CodeUtils.RESULT_FAILED) { Toast.makeText(ScanCodeActivity.this, "解析二维码失败", Toast.LENGTH_LONG).show(); } } } /** * 选择系统图片并解析 */ else if (requestCode == REQUEST_IMAGE) { if (data != null) { Uri uri = data.getData(); try { CodeUtils.analyzeBitmap(ImageUtil.getImageAbsolutePath(this, uri), new CodeUtils.AnalyzeCallback() { @Override public void onAnalyzeSuccess(Bitmap mBitmap, String result) { Toast.makeText(ScanCodeActivity.this, "解析结果:" + result, Toast.LENGTH_LONG).show(); tvResult.setText(result); } @Override public void onAnalyzeFailed() { Toast.makeText(ScanCodeActivity.this, "解析二维码失败", Toast.LENGTH_LONG).show(); } }); } catch (Exception e) { e.printStackTrace(); } } } else if (requestCode == REQUEST_CAMERA_PERM) { Toast.makeText(this, "从设置页面返回...", Toast.LENGTH_SHORT).show(); } } }
注释中有本地二维码的识别
以上所述是小编给大家介绍的Android利用ZXing扫描二维码的实例代码解析,希望对大家有所帮助,如果大家有任何疑问请给我留言,小编会及时回复大家的。在此也非常感谢大家对脚本之家网站的支持!