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1 Post请求失败ErrorW/System.err: java.net.SocketException: socket failed: EACCES (Permission denied)Reason权限不够在文件清单中添加uses-permissionPlan<?xml version="1.0" encoding="utf-8"?><manife...

1 小序2 文件结构解析2.1 文件结构总文件结构└── FirstApp ├── app │ ├── build.gradle │ ├── libs │ ├── proguard-rules.pro │ └── src │ ├── androidTest │ │ └── java ...

1 Postpackage com.example.myfirstapp;import android.content.Intent;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.view.View;import android.widget.Button...