1.在脚本文件module.app文件中添加以下代碼:
implementation 'com.squareup.retrofit2:retrofit:2.4.0'
implementation 'com.squareup.retrofit2:converter-gson:2.4.0
1.xml文件
<?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">
<EditText
android:id="@+id/et01"
android:layout_width="match_parent"
android:layout_height="100dp"
android:background="#5F9EA0"
android:hint="請輸入" />
<Button
android:id="@+id/btn01"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="提交"
android:layout_marginBottom="50dp"
android:textColor="#4B0082" />
<TextView
android:id="@+id/tv01"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
</LinearLayout>
2.java文件
package com.didu.myapplication;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
public class MainActivity extends AppCompatActivity {
EditText et01;
Button btn01;
TextView tv01;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
et01 = findViewById(R.id.et01);
btn01 = findViewById(R.id.btn01);
tv01 = findViewById(R.id.tv01);
btn01.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
String str01 =et01.getText().toString();
tv01.setText(str01);
}
});
}
}