Question

所以我这样做了2天仍然无法正常工作。我尝试了一些github建议和那些堆栈溢出，但都没有为我工作，谷歌视觉和斑马线（ZXing）有人可以帮助我吗？它显示了一个刺激性的白色屏幕，我在版本4.4.4和4.1.2中尝试了这些。是我的代码，我现在正在使用Zxing。

这是我的班级，其中按钮的数量是阵容。从这里我去了扫描仪所在的班级，所以我可以扫描该项目，然后从那里我将做另一个功能。目前我的目标是能够扫描QR码并获得其输入。我已经找到了一些关于如何获得输入的例子，所以这不是问题。 btu是的它没有显示！

Normal.java

public class Normal extends AppCompatActivity {

    Button suite, normal, room1, room2, room3, room4, room5, room6, room7, room8, room9, room10;
    private DrawerLayout mDrawerLayout;
    private ActionBarDrawerToggle mToggle;
    private DatabaseReference mFirebaseDatabase1;
    private FirebaseDatabase mFirebaseInstance;


    //FIREBASE AUTH FIELDS

    DatabaseReference mSearchedLocationReference;
    DatabaseReference mSearchedLocationReference1;




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

        mFirebaseInstance = FirebaseDatabase.getInstance();
        //FIREBASE
        mFirebaseDatabase1 = mFirebaseInstance.getReference("Rooms");



        //FIREBASE PINPOINT

        //DRAWER LAYOUT
        mDrawerLayout = (DrawerLayout) findViewById(R.id.drawerLayout);
        mToggle = new ActionBarDrawerToggle(this, mDrawerLayout, R.string.open, R.string.close);
        //navigation Drawer
        mDrawerLayout.addDrawerListener(mToggle);
        mToggle.syncState();

        getSupportActionBar().setDisplayHomeAsUpEnabled(true);

        NavigationView mNavigationView = (NavigationView) findViewById(R.id.nav_menu);
        mNavigationView.setNavigationItemSelectedListener(new NavigationView.OnNavigationItemSelectedListener() {
            @Override
            public boolean onNavigationItemSelected(MenuItem menuItem) {
                switch (menuItem.getItemId()) {

                    case (R.id.nav_logout):
                        Intent accountActivity4 = new Intent(getApplicationContext(), login1.class);
                        finish();
                        startActivity(accountActivity4);
                        break;


                }
                return true;
            }
        });

        //Navigation Drawer

        //ASSIGN ID's

        room1 = (Button) findViewById(R.id.room2);
        room2 = (Button) findViewById(R.id.room3);
        room3 = (Button) findViewById(R.id.room4);
        room4 = (Button) findViewById(R.id.room5);
        room5 = (Button) findViewById(R.id.room6);
        room6 = (Button) findViewById(R.id.room7);
        room7 = (Button) findViewById(R.id.room8);
        room8 = (Button) findViewById(R.id.room9);
        room9 = (Button) findViewById(R.id.room10);
        room10 = (Button) findViewById(R.id.room11);

        //ASSIGN ID's
        suite = (Button) findViewById(R.id.button2);
        normal = (Button) findViewById(R.id.button);

        suite.setOnClickListener(new View.OnClickListener() {

            @Override
            public void onClick(View view) {


                Intent next = new Intent(Normal.this, Suite.class);
                startActivity(next);

            }
        });

        normal.setOnClickListener(new View.OnClickListener() {

            @Override
            public void onClick(View view) {

                Intent next1 = new Intent(Normal.this, Normal.class);
                startActivity(next1);


            }

        });


        room1.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                startActivity(new Intent(Normal.this, room2.class));


            }
        });

        room2.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                IntentIntegrator integrator = new IntentIntegrator(this);
                integrator.initiateScan();
            }
        });

        room5.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                startActivity(new Intent(Normal.this, room5.class));
            }
        });



        mSearchedLocationReference.addValueEventListener(new ValueEventListener() { //attach listener

            @Override
            public void onDataChange(DataSnapshot dataSnapshot) { //something changed!


               for (DataSnapshot locationSnapshot : dataSnapshot.getChildren()) {
                  String location = locationSnapshot.getValue().toString();



                  Log.d("Locations updated", "location: " + location); //log
                    if ( location.equals("Green")){

                        room1.setBackgroundColor(Color.GREEN);
                    }else if ( location.equals("Red")){
                        room1.setBackgroundColor(Color.RED);

                    }
                    else{
                        room1.setBackgroundColor(Color.YELLOW);

                    }
                }
            }

            @Override
            public void onCancelled(DatabaseError databaseError) { //update UI here if error occurred.

            }
        });
        mSearchedLocationReference1.addValueEventListener(new ValueEventListener() { //attach listener

            @Override
            public void onDataChange(DataSnapshot dataSnapshot) { //something changed!


                for (DataSnapshot locationSnapshot : dataSnapshot.getChildren()) {
                    String location = locationSnapshot.getValue().toString();



                    Log.d("Locations updated", "location: " + location); //log
                    if ( location.equals("Green")){

                        room2.setBackgroundColor(Color.GREEN);
                    }else if ( location.equals("Red")){
                        room2.setBackgroundColor(Color.RED);
                    }
                    else{
                        room2.setBackgroundColor(Color.YELLOW);

                    }
                }
            }

            @Override
            public void onCancelled(DatabaseError databaseError) { //update UI here if error occurred.

            }
        });


    }

}

whenever i click room1, it won't got to the room2 class where I put the scanner:

room2.class

import me.dm7.barcodescanner.zxing.ZXingScannerView;

public class room2 extends AppCompatActivity implements ZXingScannerView.ResultHandler{
    private ZXingScannerView zXingScannerView;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_room2);
    }

    public void scan(View view){
        zXingScannerView =new ZXingScannerView(getApplicationContext());
        setContentView(zXingScannerView);
        zXingScannerView.setResultHandler(this);
        zXingScannerView.startCamera();

    }

    @Override
    protected void onPause() {
        super.onPause();
        zXingScannerView.stopCamera();
    }

    @Override
    public void handleResult(Result result) {
        Toast.makeText(getApplicationContext(),result.getText(),Toast.LENGTH_SHORT).show();


    }
}

这是我的清单，因为我一直在尝试这两个，所以它有服务愿景，但确实要求获得相机的许可。

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.chanty.hoteltwoway">



    <uses-feature android:name="android.hardware.camera" />
    <uses-feature android:name="android.hardware.autofocus" />
    <uses-permission android:name="android.permission.CAMERA"/>
    <uses-permission android:name="android.permission.VIBRATE"/>
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>


    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/AppTheme"
        android:name="android.support.multidex.MultiDexApplication" >
        <activity android:name=".login">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <activity android:name=".MainActivity" />
        <activity android:name=".Room" />
        <activity android:name=".Suite" />
        <activity android:name=".Normal" />
        <activity android:name=".rooms.room1" />
        <activity android:name=".rooms.room2" />
        <activity android:name=".rooms.room3" />
        <activity android:name=".rooms.room5" />
        <activity android:name=".rooms.room6" />
        <activity android:name=".rooms.room7" />
        <activity android:name=".rooms.room8" />
        <activity android:name=".rooms.room10" />
        <activity android:name=".suites.suite1" />
        <activity android:name=".suites.suite2" />
        <activity android:name=".suites.suite3" />
        <activity android:name=".suites.suite4" />
        <activity android:name=".suites.suite5" />
        <activity android:name=".suites.suite6" />
        <activity android:name=".suites.suite7" />
        <activity android:name=".suites.suite9" />
        <activity android:name=".suites.suite8" />
        <activity android:name=".suites.suite10" />
        <activity android:name=".login1" />
        <activity android:name=".MainActivity1" />
        <activity android:name=".login2" />
        <activity android:name=".Room1" />
        <activity android:name=".Normal1" />
        <activity android:name=".Suite1" />
        <activity android:name=".suprooms.suproom1" />
        <activity android:name=".suprooms.suproom2" />
        <activity android:name=".suprooms.suproom3" />
        <activity android:name=".suprooms.suproom4" />
        <activity android:name=".suprooms.suproom5" />
        <activity android:name=".suprooms.suproom6" />
        <activity android:name=".suprooms.suproom7" />
        <activity android:name=".suprooms.suproom8" />
        <activity android:name=".suprooms.suproom9" />
        <activity android:name=".suprooms.suproom10" />
        <activity android:name=".supsuites.supsuite1"></activity>
        <meta-data android:name="com.google.android.gms.vision.DEPENDENCIES" android:value="barcode"/>
    </application>

</manifest>

很多依赖，因为是的，我从第1天起就开始测试这是我的gradle

apply plugin: 'com.android.application'

android {
    compileSdkVersion 26
    buildToolsVersion "26.0.2"
    defaultConfig {
        applicationId "com.example.chanty.hoteltwoway"
        minSdkVersion 15
        targetSdkVersion 26
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
        multiDexEnabled true
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
        exclude group: 'com.android.support', module: 'support-annotations'
    })


    compile 'me.dm7.barcodescanner:zxing:1.7.2'
    compile 'com.google.android.gms:play-services-vision:10.0.1'
    compile 'com.android.support.constraint:constraint-layout:1.0.2'
    compile 'com.google.firebase:firebase-database:10.0.1'
    compile 'com.google.firebase:firebase-auth:10.0.1'
    compile 'com.android.support:multidex:1.0.1'
    compile 'com.android.support:design:26.+'
    compile 'com.android.support:appcompat-v7:26.+'
    compile 'com.google.firebase:firebase-core:10.0.1'
    testCompile 'junit:junit:4.12'
}

// Add to the bottom of the file
apply plugin: 'com.google.gms.google-service

我尝试根据某些来源降级斑马线依赖关系以便它可能有效。但是，它不起作用，你们能帮助我弄清楚我做错了什么吗？

Answer 1

尝试启动另一个项目。从您的计划的核心构建。 github教程为您提供了正确的源代码？先测试一下。然后从那里了解他们如何实现它，然后慢慢将其应用到您的程序中。这是一个很好的source开始。

Android Studio ZXsing QR SCANNER无法正常工作

1 个答案: