二次元コードをスキャン
二次元コードの識別情報をスキャンする基本的な機能を作りました。コードを貼り付けて、以下の文章を参考にしました。この文章はより詳細で、より多くの機能が必要です。http://blog.csdn.net/wdd1324/article/details/72765843
//
compile 'com.journeyapps:zxing-android-embedded:3.5.0'package monitormobile.com.ewm;
import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.TextView;
import android.widget.Toast;
import com.google.zxing.integration.android.IntentIntegrator;
import com.google.zxing.integration.android.IntentResult;
/**
* date: 2017/12/6 15:18
* autour: HelenChen
* description:
*/
public class MainActivity extends AppCompatActivity implements View.OnClickListener {
private TextView tv_one;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
tv_one = (TextView) findViewById(R.id.tv_one);
tv_one.setOnClickListener(this);
}
@Override
public void onClick(View view) {
switch (view.getId()) {
case R.id.tv_one:
// IntentIntegrator
IntentIntegrator intentIntegrator = new IntentIntegrator(MainActivity.this);
// Activity
intentIntegrator.setCaptureActivity(CustomCaptureActivity.class);
//
intentIntegrator.initiateScan();
break;
}
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
//
IntentResult result = IntentIntegrator.parseActivityResult(requestCode, resultCode, data);
if (result != null) {
if (result.getContents() == null) {
Toast.makeText(this, " ", Toast.LENGTH_LONG).show();
} else {
Toast.makeText(this, " ", Toast.LENGTH_LONG).show();
LogUtils.i("Splash " + result.getContents());
}
} else {
super.onActivityResult(requestCode, resultCode, data);
}
}
}
package monitormobile.com.ewm;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.v7.app.AppCompatActivity;
import android.view.KeyEvent;
import android.view.View;
import android.view.Window;
import android.view.WindowManager;
import android.widget.ImageView;
import android.widget.TextView;
import com.journeyapps.barcodescanner.CaptureManager;
import com.journeyapps.barcodescanner.DecoratedBarcodeView;
/**
* date: 2017/8/24 13:28
* autour: HelenChen
* description:
* version: V1.0
*
* @Copyright：
*/
public class CustomCaptureActivity extends AppCompatActivity {
/**
*
*/
private CaptureManager mCaptureManager;
/**
*
*/
private DecoratedBarcodeView mBarcodeView;
private TextView tv_title_name;
private ImageView iv_title_back;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// activity
requestWindowFeature(Window.FEATURE_NO_TITLE);
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
WindowManager.LayoutParams.FLAG_FULLSCREEN);
setContentView(R.layout.activity_zxing_layout);
mBarcodeView = (DecoratedBarcodeView) findViewById(R.id.zxing_barcode_scanner);
tv_title_name = (TextView) findViewById(R.id.tv_title_name);
iv_title_back = (ImageView) findViewById(R.id.iv_title_back);
// mBarcodeView = (DecoratedBarcodeView)findViewById(com.google.zxing.client.android.R.id.zxing_barcode_scanner);
mCaptureManager = new CaptureManager(this, mBarcodeView);
mCaptureManager.initializeFromIntent(getIntent(), savedInstanceState);
mCaptureManager.decode();
tv_title_name.setText(" ");
iv_title_back.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
finish();
}
});
}
@Override
protected void onResume() {
super.onResume();
mCaptureManager.onResume();
}
@Override
protected void onPause() {
super.onPause();
mCaptureManager.onPause();
}
@Override
protected void onDestroy() {
super.onDestroy();
mCaptureManager.onDestroy();
}
@Override
protected void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
mCaptureManager.onSaveInstanceState(outState);
}
/**
*
*/
@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String permissions[], @NonNull int[] grantResults) {
mCaptureManager.onRequestPermissionsResult(requestCode, permissions, grantResults);
}
/**
*
*/
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
return mBarcodeView.onKeyDown(keyCode, event) || super.onKeyDown(keyCode, event);
}
}
package monitormobile.com.ewm;
import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.LinearGradient;
import android.graphics.Rect;
import android.graphics.Shader;
import android.util.AttributeSet;
import android.util.TypedValue;
import com.google.zxing.ResultPoint;
import com.journeyapps.barcodescanner.ViewfinderView;
import java.util.ArrayList;
import java.util.List;
/**
* date: 2017/8/24 14:07
* autour: HelenChen
* description:
* version: V1.0
* @Copyright：
*/
public class CustomViewfinderView extends ViewfinderView {
/**
*
*/
public static final long CUSTOME_ANIMATION_DELAY = 16;
/* ****************************************** ************************************************/
/**
* " / " ( ， )
*/
public float mLineRate = 0.1F;
/**
* ( dp)
*/
public float mLineDepth = TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 4, getResources().getDisplayMetrics());
/**
*
*/
public int mLineColor = Color.WHITE;
/* ******************************************* ************************************************/
/**
*
*/
public int mScanLinePosition = 0;
/**
*
*/
public float mScanLineDepth = TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 4, getResources().getDisplayMetrics());
/**
*
*/
public float mScanLineDy = TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 3, getResources().getDisplayMetrics());
/**
*
*/
public LinearGradient mLinearGradient;
/**
*
*/
public float[] mPositions = new float[]{0f, 0.5f, 1f};
/**
*
*/
public int[] mScanLineColor = new int[]{0x00FFFFFF, Color.WHITE, 0x00FFFFFF};
public CustomViewfinderView(Context context, AttributeSet attrs) {
super(context, attrs);
}
@Override
public void onDraw(Canvas canvas) {
refreshSizes();
if (framingRect == null || previewFramingRect == null) {
return;
}
Rect frame = framingRect;
Rect previewFrame = previewFramingRect;
int width = canvas.getWidth();
int height = canvas.getHeight();
// 4
paint.setColor(mLineColor); //
canvas.drawRect(frame.left, frame.top, frame.left + frame.width() * mLineRate, frame.top + mLineDepth, paint);
canvas.drawRect(frame.left, frame.top, frame.left + mLineDepth, frame.top + frame.height() * mLineRate, paint);
canvas.drawRect(frame.right - frame.width() * mLineRate, frame.top, frame.right, frame.top + mLineDepth, paint);
canvas.drawRect(frame.right - mLineDepth, frame.top, frame.right, frame.top + frame.height() * mLineRate, paint);
canvas.drawRect(frame.left, frame.bottom - mLineDepth, frame.left + frame.width() * mLineRate, frame.bottom, paint);
canvas.drawRect(frame.left, frame.bottom - frame.height() * mLineRate, frame.left + mLineDepth, frame.bottom, paint);
canvas.drawRect(frame.right - frame.width() * mLineRate, frame.bottom - mLineDepth, frame.right, frame.bottom, paint);
canvas.drawRect(frame.right - mLineDepth, frame.bottom - frame.height() * mLineRate, frame.right, frame.bottom, paint);
// Draw the exterior (i.e. outside the framing rect) darkened
paint.setColor(resultBitmap != null ? resultColor : maskColor);
canvas.drawRect(0, 0, width, frame.top, paint);
canvas.drawRect(0, frame.top, frame.left, frame.bottom + 1, paint);
canvas.drawRect(frame.right + 1, frame.top, width, frame.bottom + 1, paint);
canvas.drawRect(0, frame.bottom + 1, width, height, paint);
if (resultBitmap != null) {
// Draw the opaque result bitmap over the scanning rectangle
paint.setAlpha(CURRENT_POINT_OPACITY);
canvas.drawBitmap(resultBitmap, null, frame, paint);
} else {
//
mScanLinePosition += mScanLineDy;
if(mScanLinePosition > frame.height()){
mScanLinePosition = 0;
}
mLinearGradient = new LinearGradient(frame.left, frame.top + mScanLinePosition, frame.right, frame.top + mScanLinePosition, mScanLineColor, mPositions, Shader.TileMode.CLAMP);
paint.setShader(mLinearGradient);
canvas.drawRect(frame.left, frame.top + mScanLinePosition, frame.right, frame.top + mScanLinePosition + mScanLineDepth, paint);
paint.setShader(null);
float scaleX = frame.width() / (float) previewFrame.width();
float scaleY = frame.height() / (float) previewFrame.height();
List currentPossible = possibleResultPoints;
List currentLast = lastPossibleResultPoints;
int frameLeft = frame.left;
int frameTop = frame.top;
if (currentPossible.isEmpty()) {
lastPossibleResultPoints = null;
} else {
possibleResultPoints = new ArrayList<>(5);
lastPossibleResultPoints = currentPossible;
paint.setAlpha(CURRENT_POINT_OPACITY);
paint.setColor(resultPointColor);
for (ResultPoint point : currentPossible) {
canvas.drawCircle(frameLeft + (int) (point.getX() * scaleX),
frameTop + (int) (point.getY() * scaleY),
POINT_SIZE, paint);
}
}
if (currentLast != null) {
paint.setAlpha(CURRENT_POINT_OPACITY / 2);
paint.setColor(resultPointColor);
float radius = POINT_SIZE / 2.0f;
for (ResultPoint point : currentLast) {
canvas.drawCircle(frameLeft + (int) (point.getX() * scaleX),
frameTop + (int) (point.getY() * scaleY),
radius, paint);
}
}
}
// Request another update at the animation interval, but only repaint the laser line,
// not the entire viewfinder mask.
postInvalidateDelayed(CUSTOME_ANIMATION_DELAY,
frame.left,
frame.top,
frame.right,
frame.bottom);
}
}
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/activity_main"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context="monitormobile.com.ewm.MainActivity">
<TextView
android:id="@+id/tv_one"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Hello World!"
android:background="@color/colorPrimaryDark"
android:padding="20dp"/>
RelativeLayout>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<RelativeLayout
android:id="@+id/rl_title_root"
android:layout_width="match_parent"
android:layout_height="@dimen/dimen130"
android:background="@color/color_blue_one">
<ImageView
android:id="@+id/iv_title_back"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:padding="@dimen/dimen30"
android:src="@drawable/white_back" />
<TextView
android:id="@+id/tv_title_name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:text=" "
android:textColor="@color/white"
android:textSize="@dimen/dimen52" />
<TextView
android:layout_width="match_parent"
android:layout_height="@dimen/dimen1"
android:layout_alignParentBottom="true"
android:background="@color/textcolor_title_line" />
RelativeLayout>
<com.journeyapps.barcodescanner.DecoratedBarcodeView
android:id="@+id/zxing_barcode_scanner"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="center_vertical"
app:zxing_framing_rect_height="300dp"
app:zxing_framing_rect_width="300dp"
app:zxing_preview_scaling_strategy="centerCrop"
app:zxing_scanner_layout="@layout/custom_barcode_scanner"
app:zxing_use_texture_view="true" />
LinearLayout>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<com.journeyapps.barcodescanner.BarcodeView
android:id="@+id/zxing_barcode_surface"
android:layout_width="match_parent"
android:layout_height="match_parent" />
<monitormobile.com.ewm.CustomViewfinderView
android:id="@+id/zxing_viewfinder_view"
android:layout_width="match_parent"
android:layout_height="match_parent" />
<TextView
android:id="@+id/zxing_status_view"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_marginTop="120dp"
android:background="@color/transparent"
android:text=" "
android:textColor="@color/map_pop_line" />
FrameLayout>
<activity
android:name=".CustomCaptureActivity"
android:configChanges="keyboardHidden|orientation"
android:launchMode="standard"
android:screenOrientation="portrait"
android:windowSoftInputMode="adjustPan|stateHidden"
tools:replace="screenOrientation" />