二维码

使用第三方包实现二维码扫描,生成不带log的二维码,和生成带log的二维码

包见文件library_qrcode

xml:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    tools:context="fanggao.qf.qrcode.MainActivity">
    <Button
        android:id="@+id/btn_scan"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="扫描二维码"
        android:onClick="onClick"/>
    <Button
        android:id="@+id/btn_create_qrcode"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="生成二维码"
        android:onClick="onClick"/>
    <Button
        android:id="@+id/btn_create_qrcode_log"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="生成带log的二维码"
        android:onClick="onClick"/>
    <ImageView
        android:id="@+id/image"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />
</LinearLayout>

main:

public class MainActivity extends Activity {

    private ImageView image;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
         image = (ImageView) findViewById(R.id.image);

    }
    public void onClick(View view){
        switch (view.getId()){
            case R.id.btn_scan://开启扫描
                //开启一个扫描的activity
                Intent intent = new Intent(MainActivity.this, CaptureActivity.class);
                startActivityForResult(intent,106);
                break;
            case R.id.btn_create_qrcode://生成二维码
                    /*
                String content, 二维码的内容
                Context context,
                Bitmap logo,  二维码中的logo
                int hightAndWidth   宽高*/

                Bitmap bitmap = EncodingHandler.enCodeStringWithLogo("你好.t啊", MainActivity.this, null, 200);
                image.setImageBitmap(bitmap);
                break;
            case R.id.btn_create_qrcode_log:
                Bitmap bitmap1 = BitmapFactory.decodeResource(getResources(), R.mipmap.ic_launcher);
                image.setImageBitmap(EncodingHandler.enCodeStringWithLogo("你好啊",MainActivity.this,bitmap1,200));
                break;
        }
    }

    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        if(requestCode == 106 && resultCode == RESULT_OK && data != null){
            //获取数据信息
            String result = data.getStringExtra("result");
            Toast.makeText(MainActivity.this, result, Toast.LENGTH_SHORT).show();
        }

    }
}

效果: