微信支付结果返回的一种获取方式-广播

get微信返回码的方式之注册广播

Paste_Image.png

说明以下都是数据的模拟并未牵扯到微信的实际操作

第一步

---

配置清单文件

<activity android:name=".MainActivity">
    <intent-filter>
        <action android:name="android.intent.action.MAIN" />

        <category android:name="android.intent.category.LAUNCHER" />
    </intent-filter>
</activity>
<activity android:name=".Activity2"></activity>
<receiver android:name=".MyBroadCast">
    <intent-filter >
        <action android:name="wx.msg.send"/>
    </intent-filter>
</receiver>

第二步模拟调用支付

---

调用支付开启支付页面

public class MainActivity extends AppCompatActivity {

private Button mWXPay;
private TextView mResult;
public MessageReceiver mMessageReceiver;
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    mResult = (TextView) findViewById(R.id.text);
    mWXPay = (Button) findViewById(R.id.btn_pay);
    mWXPay.setOnClickListener(new View.OnClickListener() {

        @Override
        public void onClick(View v) {
           startActivity(new Intent(MainActivity.this,Activity2.class));
        }
    });
    registerMessageReceiver();
}

//在销毁时要与广播解绑
@Override
protected void onDestroy() {
    unregisterReceiver(mMessageReceiver);
    super.onDestroy();
}


/**
 * 动态注册广播
 */
public void registerMessageReceiver() {
    mMessageReceiver = new MessageReceiver();
    IntentFilter filter = new IntentFilter();
    filter.addAction("wx.msg.receiver");
    registerReceiver(mMessageReceiver, filter);
}

public class MessageReceiver extends BroadcastReceiver {

    @Override
    public void onReceive(Context context, Intent intent) {
        if (intent.getAction().equals("wx.msg.receiver")) {
            mResult.setText(intent.getStringExtra("message"));
        }
    }
}
}

---

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    >

<Button
    android:text="测试按钮"
    android:id="@+id/btn_pay"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content" />
    <TextView
        android:text="我是文本啊"
        android:id="@+id/text"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />

</LinearLayout>

第三步模拟结果返回

---

在这里发送一个广播

public class Activity2 extends AppCompatActivity {

    private Button button;
    @Override
    protected void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_2);
        button = (Button) findViewById(R.id.action0);
        button.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent mIntent = new Intent("wx.msg.send");
                mIntent.putExtra("messageSend", "模拟支付返回码为1");
                sendBroadcast(mIntent);
                finish();
            }
        });
    }
}

---

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical" android:layout_width="match_parent"
    android:layout_height="match_parent">
<Button
    android:id="@+id/action0"
    android:text="按钮2"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content" />
</LinearLayout>

第四步接收支付返回码,并对外暴露数据源

---

public class MyBroadCast extends BroadcastReceiver {

    @Override
    public void onReceive(Context context, Intent intent) {
        // TODO Auto-generated method stub
        if(intent.getAction().equals("wx.msg.send"))
        {
            processCustomMessage(context, intent);
        }
    }
    //send msg to MainActivity
    private void processCustomMessage(Context context, Intent intent) {
        String messageSend = intent.getStringExtra("messageSend");
        Intent mIntent=new Intent("wx.msg.receiver");
        mIntent.putExtra("message", messageSend);
        context.sendBroadcast(mIntent);

    }

}