ZXing barcode scanner in custom layout in fragment

It's so easy, owner of ZXing said that only add following code into onResume and onPause overrided method:

@Overridepublic void onResume() {    barcodeView.resume();    super.onResume();}@Overridepublic void onPause() {    barcodeView.pause();    super.onPause();}

You must initialize the barcodeView.

Try this code:

IntentIntegrator integrator = IntentIntegrator.forSupportFragment(this);barcodeView.initializeFromIntent(integrator.createScanIntent());

https://github.com/journeyapps/zxing-android-embedded

Try to use the minimal library of zxing like following link: https://github.com/andreipro/zxing-android-minimal

It's easy. You just have to add these lines into your gradle

repositories {    mavenCentral()    maven {        url "https://raw.github.com/embarkmobile/zxing-android-minimal/mvn-repo/maven-repository/"    }}dependencies {    compile fileTree(dir: 'libs', include: ['*.jar'])    compile 'com.android.support:support-v13:22.2.0'    // Zxing minimal libraries    compile 'com.embarkmobile:zxing-android-minimal:2.0.0@aar'    compile 'com.embarkmobile:zxing-android-integration:2.0.0@aar'    compile 'com.google.zxing:core:3.0.1'}

And then just call the barcode using this

new IntentIntegrator(this).initiateScan(); // `this` is the current Activity

In you case, you wanna use a custom layout, so you must create your custom layout following some parameters, such as the layout below:

<?xml version="1.0" encoding="utf-8"?><merge xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools">    <SurfaceView android:id="@+id/zxing_preview_view"        android:layout_width="fill_parent"        android:layout_height="fill_parent"/>    <com.google.zxing.client.android.ViewfinderView        android:id="@+id/zxing_viewfinder_view"        android:layout_width="fill_parent"        android:layout_height="fill_parent"/>    <LinearLayout        android:id="@+id/zxing_result_view"        android:orientation="vertical"        android:layout_width="fill_parent"        android:layout_height="fill_parent"        android:background="@color/zxing_result_view"        android:visibility="gone"        android:baselineAligned="false">        <LinearLayout            android:orientation="horizontal"            android:layout_width="fill_parent"            android:layout_height="wrap_content"            android:layout_weight="1"            android:gravity="center"            android:padding="@dimen/zxing_standard_padding">            <LinearLayout                android:orientation="vertical"                android:layout_width="wrap_content"                android:layout_height="fill_parent"                android:gravity="right|center_vertical">                <ImageView android:id="@+id/zxing_barcode_image_view"                    android:layout_width="160dip"                    android:layout_height="wrap_content"                    android:maxWidth="160dip"                    android:maxHeight="160dip"                    android:layout_marginBottom="@dimen/zxing_half_padding"                    android:adjustViewBounds="true"                    android:scaleType="centerInside"                    tools:ignore="ContentDescription"/>                <LinearLayout                    android:orientation="horizontal"                    android:layout_width="wrap_content"                    android:layout_height="wrap_content">                    <TextView android:layout_width="wrap_content"                        android:layout_height="wrap_content"                        android:text="@string/zxing_msg_default_format"                        android:textColor="@color/zxing_result_minor_text"                        android:textStyle="bold"                        android:paddingRight="@dimen/zxing_half_padding"/>                    <TextView android:id="@+id/zxing_format_text_view"                        android:layout_width="wrap_content"                        android:layout_height="wrap_content"                        android:textColor="@color/zxing_result_minor_text"/>                </LinearLayout>                <LinearLayout                    android:orientation="horizontal"                    android:layout_width="wrap_content"                    android:layout_height="wrap_content">                    <TextView android:layout_width="wrap_content"                        android:layout_height="wrap_content"                        android:text="@string/zxing_msg_default_type"                        android:textColor="@color/zxing_result_minor_text"                        android:textStyle="bold"                        android:paddingRight="@dimen/zxing_half_padding"/>                    <TextView android:id="@+id/zxing_type_text_view"                        android:layout_width="wrap_content"                        android:layout_height="wrap_content"                        android:textColor="@color/zxing_result_minor_text"/>                </LinearLayout>                <LinearLayout                    android:orientation="horizontal"                    android:layout_width="wrap_content"                    android:layout_height="wrap_content">                    <TextView android:layout_width="wrap_content"                        android:layout_height="wrap_content"                        android:text="@string/zxing_msg_default_time"                        android:textColor="@color/zxing_result_minor_text"                        android:textStyle="bold"                        android:paddingRight="@dimen/zxing_half_padding"/>                    <TextView android:id="@+id/zxing_time_text_view"                        android:layout_width="wrap_content"                        android:layout_height="wrap_content"                        android:textColor="@color/zxing_result_minor_text"/>                </LinearLayout>                <LinearLayout                    android:orientation="horizontal"                    android:layout_width="wrap_content"                    android:layout_height="wrap_content">                    <TextView android:id="@+id/zxing_meta_text_view_label"                        android:layout_width="wrap_content"                        android:layout_height="wrap_content"                        android:text="@string/zxing_msg_default_meta"                        android:textColor="@color/zxing_result_minor_text"                        android:textStyle="bold"                        android:paddingRight="@dimen/zxing_half_padding"/>                    <TextView android:id="@+id/zxing_meta_text_view"                        android:layout_width="wrap_content"                        android:layout_height="wrap_content"                        android:textColor="@color/zxing_result_minor_text"/>                </LinearLayout>            </LinearLayout>            <ScrollView                android:layout_width="wrap_content"                android:layout_height="wrap_content">                <LinearLayout                    android:layout_width="wrap_content"                    android:layout_height="wrap_content"                    android:orientation="vertical">                    <TextView android:id="@+id/zxing_contents_text_view"                        android:layout_width="wrap_content"                        android:layout_height="wrap_content"                        android:textColor="@color/zxing_result_text"                        android:textColorLink="@color/zxing_result_text"                        android:textSize="22sp"                        android:paddingLeft="12dip"                        android:autoLink="web"                        android:textIsSelectable="true"/>                    <TextView android:id="@+id/zxing_contents_supplement_text_view"                        android:layout_width="wrap_content"                        android:layout_height="wrap_content"                        android:textColor="@color/zxing_result_text"                        android:textColorLink="@color/zxing_result_text"                        android:paddingLeft="12dip"                        android:autoLink="web"                        android:textIsSelectable="true"/>                </LinearLayout>            </ScrollView>        </LinearLayout>        <LinearLayout android:id="@+id/zxing_result_button_view"            android:layout_width="fill_parent"            android:layout_height="wrap_content"            android:orientation="horizontal"            android:gravity="center">            <Button style="@style/zxing_ResultButton"                android:visibility="gone"/>            <Button style="@style/zxing_ResultButton"                android:visibility="gone"/>            <Button style="@style/zxing_ResultButton"                android:visibility="gone"/>            <Button style="@style/zxing_ResultButton"                android:visibility="gone"/>        </LinearLayout>    </LinearLayout>    <LinearLayout        android:layout_gravity="bottom|center_horizontal"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:orientation="vertical">        <TextView android:id="@+id/zxing_status_view"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:layout_gravity="bottom|center_horizontal"            android:background="@color/zxing_transparent"            android:text="@string/zxing_msg_default_status"            android:textColor="@color/zxing_status_text"/>        <Button android:id="@id/zxing_back_button"            android:layout_marginTop="10dp"            android:layout_width="fill_parent"            android:layout_height="wrap_content"            android:height="60dp"            android:textAlignment="center"            android:layout_gravity="bottom|center_horizontal"            android:text="@string/zxing_button_cancel"/>    </LinearLayout></merge>

After that, you can set the above layout into integrator like

IntentIntegrator integrator = new IntentIntegrator(this);integrator.setCaptureLayout(R.layout.custom_layout);integrator.initiateScan();

But remember, you have to follow those parameters. It means that you have to use the same name for all the views.