android车牌识别系统EasyPR使用详解

package com.android.guocheng.easypr;

import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;
import com.fosung.libeasypr.view.EasyPRPreSurfaceView;
import com.fosung.libeasypr.view.EasyPRPreView;

public class MainActivity extends AppCompatActivity {

  private EasyPRPreView easyPRPreView;
  private Button btnShutter;
  private TextView text;

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

    easyPRPreView = (EasyPRPreView) findViewById(R.id.preSurfaceView);
    btnShutter = (Button) findViewById(R.id.btnShutter);
    text = (TextView) findViewById(R.id.text);
    initListener();
  }

  @Override
  protected void  () {
    super. ();
    if (easyPRPreView != null) {
      easyPRPreView. ();
    }
  }

  @Override
  protected void  () {
    super. ();
    if (easyPRPreView != null) {
      easyPRPreView. ();
    }
  }

  @Override
  protected void onDestroy() {
    super.onDestroy();
    if (easyPRPreView != null) {
      easyPRPreView.onDestroy();
    }
  }

  private void initListener() {
    easyPRPreView.setRecognizedListener(new EasyPRPreSurfaceView.OnRecognizedListener() {
      @Override
      public void onRecognized(String result) {
        if (result == null || result.equals(\"0\")) {
          Toast.makeText(MainActivity.this, \"换个姿势试试!\", Toast.LENGTH_SHORT).show();
        } else {
          Toast.makeText(MainActivity.this, \"识别成功\", Toast.LENGTH_SHORT).show();
          text.setText(result);
        }
      }
    });
    btnShutter.set Listener(new View. Listener() {
      @Override
      public void  (View view) {
        easyPRPreView.recognize();//开始识别
      }
    });
  }
}

<?  version=\"1.0\" encoding=\"utf-8\"?>
<RelativeLayout
   ns:android=\"http://schemas.android.com/apk/res/android\"
  android:layout_width=\"match_parent\"
  android:layout_height=\"match_parent\"
  android:background=\"#00000000\">

  <com.fosung.libeasypr.view.EasyPRPreView
    android:id=\"@+id/preSurfaceView\"
    android:layout_width=\"match_parent\"
    android:layout_height=\"match_parent\"/>

  <Button
    android:id=\"@+id/btnShutter\"
    android:layout_width=\"wrap_content\"
    android:layout_height=\"wrap_content\"
    android:layout_alignParentBottom=\"true\"
    android:layout_centerHorizontal=\"true\"
    android:layout_marginBottom=\"10dp\"
    android:text=\"识别\"
    android:textSize=\"16sp\"
    android:textColor=\"#FFFFFF\"
    android:background=\"@color/colorAccent\"/>

  <TextView
    android:id=\"@+id/ \"
    android:layout_width=\"match_parent\"
    android:layout_height=\"wrap_content\"
    android:layout_marginTop=\"15dp\"
    android:gravity=\"center\"
    android:textColor=\"#FFFFFF\"
    android:textSize=\"16dp\"
    android:text=\"请将车牌放入框内\"/>
  <TextView
    android:id=\"@+id/text\"
    android:layout_width=\"match_parent\"
    android:layout_height=\"wrap_content\"
    android:layout_marginTop=\"5dp\"
    android:gravity=\"center\"
    android:textColor=\"#FFFFFF\"
    android:textSize=\"18dp\"
    android:layout_below=\"@+id/ \"/>

</RelativeLayout>