ZxingLibrary扫描及制作

最新推荐文章于 2024-08-14 13:11:01 发布

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最新推荐文章于 2024-08-14 13:11:01 发布

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本文链接：https://blog.youkuaiyun.com/weixin_43894785/article/details/86348267

本文介绍如何在Android应用中集成ZxingLibrary，实现二维码的扫描和创建功能。通过添加依赖并创建相关活动，可以轻松实现二维码操作。

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依赖：implementation ‘cn.yipianfengye.android:zxing-library:2.2’

package com.example.erweima;

import android.Manifest;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.net.Uri;
import android.os.Build;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.v4.app.ActivityCompat;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.text.TextUtils;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.Toast;

import com.uuzuche.lib_zxing.activity.CaptureActivity;
import com.uuzuche.lib_zxing.activity.CodeUtils;

public class MainActivity extends AppCompatActivity {

private Button btn,btn2;
public static int REQUEST_CODE=100;
private EditText editText;
private ImageView imageView;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    btn = findViewById(R.id.btn);
    btn2 = findViewById(R.id.btn2);
    editText = findViewById(R.id.text);
    imageView = findViewById(R.id.image);


    btn.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            Intent intent = new Intent(MainActivity.this, CaptureActivity.class);
            startActivityForResult(intent,REQUEST_CODE);
        }
    });


    btn2.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            String textContent = editText.getText().toString();
            if (TextUtils.isEmpty(textContent)) {
                Toast.makeText(MainActivity.this, "您的输入为空!",
                        Toast.LENGTH_SHORT).show();
                return;
            }
            //editText.setText("");
            Bitmap mBitmap = CodeUtils.createImage(textContent, 400, 400
                    , BitmapFactory.decodeResource(getResources(), R.mipmap.ic_launcher));
            imageView.setImageBitmap(mBitmap);
        }
    });


    if(Build.VERSION.SDK_INT>=23){
        String[] strings = {Manifest.permission.WRITE_EXTERNAL_STORAGE, Manifest.permission.ACCESS_FINE_LOCATION
                ,Manifest.permission.CAMERA,Manifest.permission.CALL_PHONE
                ,Manifest.permission.READ_LOGS,Manifest.permission.READ_PHONE_STATE
                ,Manifest.permission.READ_EXTERNAL_STORAGE,Manifest.permission.SET_DEBUG_APP
                ,Manifest.permission.SYSTEM_ALERT_WINDOW,Manifest.permission
        .GET_ACCOUNTS,Manifest.permission.WRITE_APN_SETTINGS};
        ActivityCompat.requestPermissions(this,strings,123);
    }
}

@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
    if(requestCode==123){
        Toast.makeText(this, "获取权限成功", Toast.LENGTH_SHORT).show();
    }
}

@Override
protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {
    super.onActivityResult(requestCode, resultCode, data);
    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();
            } else if (bundle.getInt(CodeUtils.RESULT_TYPE) == CodeUtils.RESULT_FAILED) {
                Toast.makeText(MainActivity.this, "解析二维码失败", Toast.LENGTH_LONG).show();
            }
        }
    }
}

}