第三方--二维码的使用

1.粘贴好各种需要的包和类

2.清单文件中加入

        <activity

            android:name="com.Zxing.Demo.CaptureActivity"

            android:configChanges="orientation|keyboardHidden"

            android:screenOrientation="landscape"

            android:theme="@android:style/Theme.NoTitleBar.Fullscreen"

            android:windowSoftInputMode="stateAlwaysHidden" >

        </activity>

    <uses-permission android:name="android.permission.CAMERA" />

    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />

    <uses-permission android:name="android.permission.VIBRATE" />

    <uses-permission android:name="android.permission.FLASHLIGHT" />

    <uses-feature android:name="android.hardware.camera" />

    <uses-feature android:name="android.hardware.camera.autofocus" />

3.重写主界面的如果点击确认，返回时那值

@Override

    protected void onActivityResult(int requestCode, int resultCode, Intent data) {

        // TODO Auto-generated method stub

        

        String stringExtra = data.getStringExtra("result");

        tv1.setText(stringExtra);

        

        super.onActivityResult(requestCode, resultCode, data);

    }