Question

我正在使用zxing库。我用代码调用库：

Intent intent = new Intent("com.google.zxing.client.android.SCAN");
intent.putExtra("SCAN_MODE", "QR_CODE_MODE");
startActivityForResult(intent, 0);

条形码开始，它读取qrcode。问题是它永远不会返回我的活动。这是我的代码。

@Override
    protected void onActivityResult(int requestCode, int resultCode, Intent intent) {

           if (requestCode == 0) {

              if (resultCode == RESULT_OK) {

                 String contents = intent.getStringExtra("SCAN_RESULT");
                 String format = intent.getStringExtra("SCAN_RESULT_FORMAT");

                 TextView txtCambiado = (TextView)findViewById(R.id.textView1);
                 txtCambiado.setText(contents);


          } else if (resultCode == RESULT_CANCELED) {
                 // Handle cancel
          }
       }
    }

该应用程序永远不会执行onActivityResult。 Zxing显示结果，但它不会返回到我的应用程序。拜托，有人可以帮助我吗？

my manifest file is. I think the problem has something to do with it.

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.acme.prueba"
android:versionCode="1"
android:versionName="1.0" >

<uses-sdk
    android:minSdkVersion="8"
    android:targetSdkVersion="19" />
<uses-permission android:name="android.permission.CAMERA"></uses-permission>
<uses-feature android:name="android.hardware.screen.landscape"/>
<uses-feature android:name="android.hardware.CAMERA" />
<uses-feature android:name="android.hardware.camera.autofocus" android:required="true" />
<uses-permission
android:name="android.permission.FLASHLIGHT"
android:permissionGroup="android.permission-group.HARDWARE_CONTROLS"
android:protectionLevel="normal" />


<application
    android:allowBackup="true"
    android:icon="@drawable/ic_launcher"
    android:label="@string/app_name"
    android:theme="@style/AppTheme" 
    android:configChanges="orientation"

    >

    <activity
        android:name="com.acme.prueba.MainActivity"
        android:label="@string/app_name" >
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />

            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
         <intent-filter>
             <action android:name="android.intent.action.MAIN" />
            <category android:name="android.intent.category.DEFAULT" />
        </intent-filter>
    </activity>

    <activity
  android:name="com.google.zxing.client.android.CaptureActivity"
  android:clearTaskOnLaunch="true"
  android:configChanges="orientation|keyboardHidden"
  android:screenOrientation="landscape"
  android:stateNotNeeded="true"
  android:theme="@android:style/Theme.NoTitleBar.Fullscreen"
  android:windowSoftInputMode="stateAlwaysHidden" >

  <intent-filter>
    <action android:name="com.google.zxing.client.android.SCAN" />
    <category android:name="android.intent.category.DEFAULT" />
  </intent-filter>
</activity>

</application>

</manifest>

Answer 1

在清单中添加了意图过滤器吗？

        <intent-filter>
            <action android:name="com.google.zxing.client.android.SCAN" />
            <category android:name="android.intent.category.DEFAULT" />
        </intent-filter>

onActivityResult没有在zxing中解雇

1 个答案: