Android Studio 扫描二维码并解析跳转

<Button
android:id="@+id/btn"
android:layout_width="150dp"
android:layout_height="100dp"
android:text="扫描二维码跳转" />

package com.example.zx;

import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;

import com.uuzuche.lib_zxing.activity.CaptureActivity;
import com.uuzuche.lib_zxing.activity.CodeUtils;

public class MainActivity extends AppCompatActivity {
/**
* 扫描跳转Activity RequestCode
*/
public static final int REQUEST_CODE = 111;
/**
* 扫描跳转按钮
*/
private Button btn=null;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
btn=(Button)findViewById(R.id.btn);
btn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent intent = new Intent(MainActivity.this, CaptureActivity.class);
startActivityForResult(intent,REQUEST_CODE);}});}
@Override
protected void onActivityResult(
int requestCode, int resultCode, Intent data) {
/**
* 处理二维码扫描结果
*/
if (requestCode == REQUEST_CODE) {
//处理扫描结果（在界面上显示）
if (null != data) {
Bundle bundle = data.getExtras();
if (bundle == null) {
return;}
if (bundle.getInt(CodeUtils.RESULT_TYPE)

4000
== CodeUtils.RESULT_SUCCESS) {
String result =
bundle.getString(CodeUtils.RESULT_STRING);
//用默认浏览器打开扫描得到的地址
Intent intent = new Intent();
intent.setAction("android.intent.action.VIEW");
Uri content_url = Uri.parse(result.toString());
intent.setData(content_url);
startActivity(intent);
} else if (bundle.getInt(CodeUtils.RESULT_TYPE)
== CodeUtils.RESULT_FAILED) {
Toast.makeText(MainActivity.this,
"解析二维码失败", Toast.LENGTH_LONG).show();}}}}}