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 onStart() {
    super.onStart();
    if (easyPRPreView != null) {
      easyPRPreView.onStart();
    }
  }

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

  @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.setOnClickListener(new View.OnClickListener() {
      @Override
      public void onClick(View view) {
        easyPRPreView.recognize();//开始识别
      }
    });
  }
}

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