默认二维码和自定义二维码以及生成二维码

首先导入ZXing库

<FrameLayout
android:id="@+id/fl_zxing_container"
android:layout_width="match_parent"
android:layout_height="match_parent"/>

<LinearLayout
android:layout_alignParentBottom="true"
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="wrap_content">

<LinearLayout
android:id="@+id/flash_light"
android:gravity="center_horizontal"
android:orientation="vertical"
android:layout_width="wrap_content"
android:layout_height="wrap_content">

<ImageView
android:src="@mipmap/ic_launcher"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />

<TextView
android:textColor="#ffffff"
android:text="闪关灯"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />

</LinearLayout>

<LinearLayout
android:id="@+id/pic_scan"
android:gravity="center_horizontal"
android:orientation="vertical"
android:layout_width="wrap_content"
android:layout_height="wrap_content">

<ImageView
android:src="@mipmap/ic_launcher"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<TextView
android:text="相册"
android:textColor="#ffffff"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />

</LinearLayout>

</LinearLayout>

自定义取景框
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
xmlns:app="http://schemas.android.com/apk/res-auto">

<SurfaceView
android:id="@+id/preview_view"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />

<!--取景框-->
<com.dash.zxinglibrary.view.ViewfinderView
android:id="@+id/viewfinder_view"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
app:inner_corner_color="#ff0000"
app:inner_corner_length="30dp"
app:inner_corner_width="5dp"
app:inner_height="200dp"
app:inner_margintop="150dp"
app:inner_scan_bitmap="@drawable/scan_image"
app:inner_scan_iscircle="true"
app:inner_scan_speed="10"
app:inner_width="200dp"/>

</FrameLayout>

<EditText
android:id="@+id/edit_text"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
<Button
android:onClick="normal"
android:text="生成默认的"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
<Button
android:onClick="logo"
android:text="生成logo"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
<ImageView
android:id="@+id/image_view"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />

private LinearLayout flash_light;
private boolean flag = false;
private LinearLayout pic_scan;

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

flash_light = findViewById(R.id.flash_light);
pic_scan = findViewById(R.id.pic_scan);

//ZXing里面的
CaptureFragment captureFragment = new CaptureFragment();

//设置自定义的...扫描布局
//给扫描的fragment定制一个页面
CodeUtils.setFragmentArgs(captureFragment,R.layout.my_camera);
//设置一个解析的监听回调
captureFragment.setAnalyzeCallback(analyzeCallback);
//使用扫描的fragment替换这个frameLayout
getSupportFragmentManager().beginTransaction().replace(R.id.fl_zxing_container,captureFragment).commit();

//闪关灯点击事件
flash_light.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
if (flag){
CodeUtils.isLightEnable(false);
flag = false;
}else {
CodeUtils.isLightEnable(true);
flag = true;
}
}
});

//相册的点击事件
pic_scan.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
//隐式意图
Intent intent = new Intent();
intent.setAction(Intent.ACTION_PICK);
intent.setType("image/*");
startActivityForResult(intent,1002);
}
});

}

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);

if (requestCode == 1002){

//uri路径......需要把uri路径转换为绝对路径!!!!!!!!!!!!!!!!!!!file...new file(绝对路径)
Uri uri = data.getData();

//解析图片的方法...ImageUtil.getImageAbsolutePath(this, uri)通过uri路径得到图片在手机中的绝对路径
CodeUtils.analyzeBitmap(ImageUtil.getImageAbsolutePath(this, uri), new CodeUtils.AnalyzeCallback() {
@Override
public void onAnalyzeSuccess(Bitmap mBitmap, String result) {
//Bitmap mBitmap 解析的那张图片, String result解析的结果
Toast.makeText(CustomCapatrueActivity.this,"解析结果:"+result,Toast.LENGTH_SHORT).show();
}

@Override
public void onAnalyzeFailed() {
Toast.makeText(CustomCapatrueActivity.this,"解析二维码失败",Toast.LENGTH_SHORT).show();
}
});
}
}

/**
* 二维码解析回调函数
*/
CodeUtils.AnalyzeCallback analyzeCallback = new CodeUtils.AnalyzeCallback() {
@Override
public void onAnalyzeSuccess(Bitmap mBitmap, String result) {
Intent resultIntent = new Intent();
Bundle bundle = new Bundle();
bundle.putInt(CodeUtils.RESULT_TYPE,CodeUtils.RESULT_SUCCESS);
bundle.putString(CodeUtils.RESULT_STRING,result);
resultIntent.putExtras(bundle);
setResult(RESULT_OK, resultIntent);
finish();
}

@Override
public void onAnalyzeFailed() {
Intent resultIntent = new Intent();
Bundle bundle = new Bundle();
bundle.putInt(CodeUtils.RESULT_TYPE, CodeUtils.RESULT_FAILED);
bundle.putString(CodeUtils.RESULT_STRING, "");
resultIntent.putExtras(bundle);
setResult(RESULT_OK, resultIntent);
finish();
}
};

private EditText editText;
private ImageView imageView;

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

editText = findViewById(R.id.edit_text);
imageView = findViewById(R.id.image_view);
}

public void normal(View view) {

String s = editText.getText().toString();
//可以判断一下非空
if (s != null) {
Bitmap bitmap = CodeUtils.createImage(s, 500, 500, null);

imageView.setImageBitmap(bitmap);
}
}

public void logo(View view) {

String s = editText.getText().toString();

//可以判断一下非空
if (s != null) {

//如何把资源目录下的图片转成bitmap
Bitmap logo = BitmapFactory.decodeResource(getResources(),R.mipmap.ic_launcher);
Bitmap bitmap = CodeUtils.createImage(s,500,500,logo);

imageView.setImageBitmap(bitmap);
}
}

public class MyApplication extends Application{

@Override
public void onCreate() {
super.onCreate();

//初始化zxing
ZXingLibrary.initDisplayOpinion(this);
}
}

private final int REQUFST_CODE = 101;

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

public void normalScan(View view) {

//调用默认界面扫描二维码。。。字符串
Intent intent = new Intent(MainActivity.this, CaptureActivity.class);
startActivityForResult(intent,REQUFST_CODE);
}

@Override                           //请求码          //结果码
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);

if (requestCode == REQUFST_CODE){
//处理扫描结果(在界面上显示)
if(null != data){
//拿到传递回来的数据
Bundle bundle = data.getExtras();
if (bundle == null){
return;
}

if (bundle.getInt(CodeUtils.RESULT_TYPE) == CodeUtils.RESULT_SUCCESS){
//解析得到的结果
String result = bundle.getString(CodeUtils.RESULT_STRING);
Toast.makeText(this,"解析结果:"+result,Toast.LENGTH_SHORT).show();
}else if (bundle.getInt(CodeUtils.RESULT_TYPE) == CodeUtils.RESULT_FAILED){
Toast.makeText(this,"解析二维码失败",Toast.LENGTH_SHORT).show();
}
}
}
}

/**
* 自定义扫描界面
* @param view
*/

public void customScan(View view) {

//调用默认界面扫描二维码。。。字符串
Intent intent = new Intent(MainActivity.this, CustomCapatrueActivity.class);
startActivityForResult(intent,REQUFST_CODE);
}

public void generate(View view) {

Intent intent = new Intent(MainActivity.this,GenerateActivity.class);
startActivity(intent);
}