package com.fanxin.huangfangyi.main.activity;
import android.app.Activity;
import android.content.Intent;
import android.content.pm.ActivityInfo;
import android.graphics.Rect;
import android.hardware.Camera;
import android.hardware.Camera.AutoFocusCallback;
import android.hardware.Camera.PreviewCallback;
import android.hardware.Camera.Size;
import android.os.Bundle;
import android.os.Handler;
import android.text.TextUtils;
import android.view.Display;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.animation.Animation;
import android.view.animation.TranslateAnimation;
import android.widget.Button;
import android.widget.FrameLayout;
import android.widget.ImageView;
import android.widget.RelativeLayout;
import android.widget.TextView;
import android.widget.Toast;
import com.fanxin.huangfangyi.R;
import com.fanxin.huangfangyi.main.FXConstant;
import com.fanxin.huangfangyi.main.widget.scan.CameraManager;
import com.fanxin.huangfangyi.main.widget.scan.CameraPreview;
import net.sourceforge.zbar.Config;
import net.sourceforge.zbar.Image;
import net.sourceforge.zbar.ImageScanner;
import net.sourceforge.zbar.Symbol;
import net.sourceforge.zbar.SymbolSet;
import java.io.IOException;
import java.lang.reflect.Field;
public class ScanCaptureActivity extends Activity implements OnClickListener{
private Camera mCamera;
private CameraPreview mPreview;
private Handler autoFocusHandler;
private CameraManager mCameraManager;
private TextView scanResult;
private FrameLayout scanPreview;
private Button scanRestart;
private RelativeLayout scanContainer;
private RelativeLayout scanCropView;
private ImageView scanLine;
private Rect mCropRect = null;
private boolean barcodeScanned = false;
private boolean previewing = true;
private ImageScanner mImageScanner = null;
private ImageView iv_back,iv_camera;
private TextView tv_title;
private RelativeLayout titleBar;
private String cursor;
static {
System.loadLibrary("iconv");
}
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
setContentView(R.layout.widget_zbar_scan_capture);
findViewById();
iniData();
addEvents();
initViews();
}
private void iniData() {
//标题上面的操作
iv_camera.setVisibility(View.GONE);
tv_title.setText("二维码/条码 扫描");
}
private void findViewById() {
scanPreview = (FrameLayout) findViewById(R.id.capture_preview);
scanResult = (TextView) findViewById(R.id.capture_scan_result);
scanRestart = (Button) findViewById(R.id.capture_restart_scan);
scanContainer = (RelativeLayout) findViewById(R.id.capture_container);
scanCropView = (RelativeLayout) findViewById(R.id.capture_crop_view);
scanLine = (ImageView) findViewById(R.id.capture_scan_line);
iv_back = (ImageView) findViewById(R.id.iv_back);
iv_camera = (ImageView) findViewById(R.id.iv_camera);
tv_title = (TextView) findViewById(R.id.tv_title);
titleBar = (RelativeLayout) findViewById(R.id.title);
}
private void addEvents() {
iv_back.setOnClickListener(this);
scanRestart.setOnClickListener(this);
}
private void initViews() {
mImageScanner = new ImageScanner();
mImageScanner.setConfig(0, Config.X_DENSITY, 3);
mImageScanner.setConfig(0, Config.Y_DENSITY, 3);
autoFocusHandler = new Handler();
mCameraManager = new CameraManager(this);
try {
mCameraManager.openDriver();
} catch (IOException e) {
e.printStackTrace();
}
// 调整扫描框大小,自适应屏幕
Display display = this.getWindowManager().getDefaultDisplay();
int width = display.getWidth();
int height = display.getHeight();
RelativeLayout.LayoutParams linearParams = (RelativeLayout.LayoutParams) scanCropView
.getLayoutParams();
linearParams.height = (int) (width * 0.8);
linearParams.width = (int) (width * 0.8);
scanCropView.setLayoutParams(linearParams);
// **
mCamera = mCameraManager.getCamera();
mPreview = new CameraPreview(this, mCamera, previewCb, autoFocusCB);
scanPreview.addView(mPreview);
TranslateAnimation animation = new TranslateAnimation(
Animation.RELATIVE_TO_PARENT, 0.0f,
Animation.RELATIVE_TO_PARENT, 0.0f,
Animation.RELATIVE_TO_PARENT, 0.0f,
Animation.RELATIVE_TO_PARENT, 0.85f);
animation.setDuration(5000);
animation.setRepeatCount(-1);
animation.setRepeatMode(Animation.REVERSE);
scanLine.startAnimation(animation);
}
public void onPause() {
super.onPause();
releaseCamera();
}
private void releaseCamera() {
if (mCamera != null) {
previewing = false;
mCamera.setPreviewCallback(null);
mCamera.release();
mCamera = null;
}
}
private Runnable doAutoFocus = new Runnable() {
public void run() {
if (previewing)
mCamera.autoFocus(autoFocusCB);
}
};
PreviewCallback previewCb = new PreviewCallback() {
public void onPreviewFrame(byte[] data, Camera camera) {
Size size = camera.getParameters().getPreviewSize();
// 这里需要将获取的data翻转一下,因为相机默认拿的的横屏的数据
byte[] rotatedData = new byte[data.length];
for (int y = 0; y < size.height; y++) {
for (int x = 0; x < size.width; x++)
rotatedData[x * size.height + size.height - y - 1] = data[x
+ y * size.width];
}
// 宽高也要调整
int tmp = size.width;
size.width = size.height;
size.height = tmp;
initCrop();
Image barcode = new Image(size.width, size.height, "Y800");
barcode.setData(rotatedData);
barcode.setCrop(mCropRect.left, mCropRect.top, mCropRect.width(),
mCropRect.height());
int result = mImageScanner.scanImage(barcode);
String resultStr = null;
if (result != 0) {
SymbolSet syms = mImageScanner.getResults();
for (Symbol sym : syms) {
resultStr = sym.getData();
}
}
if (!TextUtils.isEmpty(resultStr)) {
previewing = false;
mCamera.setPreviewCallback(null);
mCamera.stopPreview();
releaseCamera();
barcodeScanned = true;
if (resultStr.contains(":")) {
String type = resultStr
.substring(0, resultStr.indexOf(":"));
String value = resultStr
.substring(resultStr.indexOf(":") + 1);
System.out.println("type----------->>>>" + type);
System.out.println("value----------->>>>" + value);
if (type.equals("userInfo")) {
startActivity(new Intent(ScanCaptureActivity.this,
UserDetailsActivity.class).putExtra(
FXConstant.KEY_USER_INFO, value));
}else {
Toast.makeText(getApplicationContext(), "无效二维码",
Toast.LENGTH_SHORT).show();
}
} else {
Toast.makeText(getApplicationContext(), "无效二维码",
Toast.LENGTH_SHORT).show();
}
//
// Intent rIntent = new Intent();
// rIntent.putExtra("SCAN_RESULT",resultStr);
// setResult(RESULT_OK,rIntent);
finish();
// scanResult.setText("barcode result " + resultStr);
// barcodeScanned = true;
}
}
};
// Mimic continuous auto-focusing
AutoFocusCallback autoFocusCB = new AutoFocusCallback() {
public void onAutoFocus(boolean success, Camera camera) {
autoFocusHandler.postDelayed(doAutoFocus, 1000);
}
};
/**
* 初始化截取的矩形区域
*/
private void initCrop() {
int cameraWidth = mCameraManager.getCameraResolution().y;
int cameraHeight = mCameraManager.getCameraResolution().x;
/** 获取布局中扫描框的位置信息 */
int[] location = new int[2];
scanCropView.getLocationInWindow(location);
int cropLeft = location[0];
int cropTop = location[1] - getStatusBarHeight();
int cropWidth = scanCropView.getWidth();
int cropHeight = scanCropView.getHeight();
/** 获取布局容器的宽高 */
int containerWidth = scanContainer.getWidth();
int containerHeight = scanContainer.getHeight();
/** 计算最终截取的矩形的左上角顶点x坐标 */
int x = cropLeft * cameraWidth / containerWidth;
/** 计算最终截取的矩形的左上角顶点y坐标 */
int y = cropTop * cameraHeight / containerHeight;
/** 计算最终截取的矩形的宽度 */
int width = cropWidth * cameraWidth / containerWidth;
/** 计算最终截取的矩形的高度 */
int height = cropHeight * cameraHeight / containerHeight;
/** 生成最终的截取的矩形 */
mCropRect = new Rect(x, y, width + x, height + y);
}
private int getStatusBarHeight() {
try {
Class<?> c = Class.forName("com.android.internal.R$dimen");
Object obj = c.newInstance();
Field field = c.getField("status_bar_height");
int x = Integer.parseInt(field.get(obj).toString());
return getResources().getDimensionPixelSize(x);
} catch (Exception e) {
e.printStackTrace();
}
return 0;
}
@Override
public void onClick(View v) {
switch(v.getId()){
case R.id.iv_back:
releaseCamera();
finish();
break;
case R.id.capture_restart_scan:
if (barcodeScanned) {
barcodeScanned = false;
scanResult.setText("Scanning...");
mCamera.setPreviewCallback(previewCb);
mCamera.startPreview();
previewing = true;
mCamera.autoFocus(autoFocusCB);
}
break;
}
}
}