二维码集成

implementation 'cn.yipianfengye.android:zxing-library:2.2'

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没用

<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />

<uses-permission android:name="android.permission.READ_PHONE_STATE" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
<uses-permission android:name="android.permission.READ_LOGS"/>

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<uses-permission android:name="android.permission.CAMERA" />
<uses-feature android:name="android.hardware.camera" /> 
<uses-feature android:name="android.hardware.camera.autofocus" /> 
<uses-permission android:name="android.permission.VIBRATE"></uses-permission>

扫描二维码关注公众号，回复： 3386351 查看本文章

public void scan(View view) {
Intent intent = new Intent(LoginActivity.this, CaptureActivity.class);
// startActivity(intent);
startActivityForResult(intent, REQUEST_CODE);
}

@Override
protected void onActivityResult(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_SHORT).show();
} else if (bundle.getInt(CodeUtils.RESULT_TYPE) == CodeUtils.RESULT_FAILED) {
Toast.makeText(LoginActivity.this, "解析二维码失败", Toast.LENGTH_LONG).show();
}
}
}
}

二维码生成

1。通过 edittext 获取输入值；

2 bitmap bitmap=codeutils.sreatecrearimage(值，大小（200），（200），null (中间的图片))；

3. 赋值给 imageview控件

public void generateBtn(View view) {

	String content = inputEt.getText().toString();

	if (TextUtils.isEmpty(content)) {
	Toast.makeText(this, "请输入关键字", Toast.LENGTH_SHORT).show();
	return;
	}

	Bitmap mBitmap = CodeUtils.createImage(content, 400, 400, BitmapFactory.decodeResource(getResources(), R.mipmap.ic_launcher));
	scanIv.setImageBitmap(mBitmap);
	}

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