版权声明:本文由 Micheal 超 博客 创作,未经博主允许不得转载。 https://blog.csdn.net/qq_42887760/article/details/86701395
算法流程
界面设计
1.UI界面一:
- 两个Button元素+一个TextView元素
- XML界面设计
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:padding="16dp"
tools:context="com.example.opencvtest.MainActivity">
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:text="拍照"
android:id="@+id/take_picture_btn"
/>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_toRightOf="@+id/take_picture_btn"
android:text="选择照片"
android:id="@+id/select_picture_btn"
/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:text="Micheal 超 - 卡号识别演示"/>
</RelativeLayout>
- java代码
package com.example.opencvtest;
import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;
public class MainActivity extends AppCompatActivity implements View.OnClickListener {
Button btn_take_picture,btn_select_picture;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
btn_take_picture = (Button) this.findViewById(R.id.take_picture_btn);
btn_select_picture = (Button) this.findViewById(R.id.select_picture_btn);
btn_take_picture.setOnClickListener(this);
btn_select_picture.setOnClickListener(this);
}
@Override
public void onClick(View v) {
Intent intent = new Intent(this.getApplication(),CardOCRActivity.class);
switch (v.getId()){
case R.id.take_picture_btn:
Toast.makeText(this, "Take Picture ...", Toast.LENGTH_SHORT).show();
startActivity(intent);
break;
case R.id.select_picture_btn:
Toast.makeText(this, "Select Picture ...", Toast.LENGTH_SHORT).show();
startActivity(intent);
break;
default:
break;
}
}
}
2.UI界面二:(创建一个新的Activity)
- 一个Button元素+TextView元素+ImageView元素
- XML界面设计
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.example.opencvtest.CardOCRActivity">
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="识别"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:id="@+id/recognition_btn"
/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_marginTop="20dp"
android:layout_toRightOf="@+id/recognition_btn"
android:text="结果:空"
android:id="@+id/textView" />
<ImageView
android:id="@+id/imageView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_below="@+id/recognition_btn"
android:layout_marginTop="10dp"
android:scaleType="fitCenter"
android:src="@drawable/idcard" />
</RelativeLayout>
- Java代码(暂时无需编写)
运行图:(界面图见上)
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