如何将numpy矩阵转换为熊猫系列？(How to convert a numpy matrix to a pandas series?)

 检查我的代码： 
 
 activity_main.xml中： 
 
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
        xmlns:android="http://schemas.android.com/apk/res/android"
        android:layout_width="match_parent"
        android:orientation="vertical"
        android:gravity="center"
        android:layout_height="match_parent">

    <Spinner
            android:id="@+id/spinner"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"/>

    <Button
        android:id="@+id/button"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Choose"/>
</LinearLayout>
 
 主要活动： 
 
package com.example.MyTest;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.Spinner;

import java.util.Arrays;
import java.util.Timer;
import java.util.TimerTask;

public class MainActivity extends Activity {

   private Spinner spinner;
   private Button button;
   private Timer timer;


    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        spinner = (Spinner) findViewById(R.id.spinner);
        button = (Button) findViewById(R.id.button);

        spinner.setAdapter(new ArrayAdapter(this,
                android.R.layout.simple_spinner_dropdown_item,
                Arrays.asList(getResources().getStringArray(R.array.fruit))));
        timer = new Timer();
        timer.schedule(new TimerTask() {
            @Override
            public void run() {
                runOnUiThread(new Runnable() {
                    @Override
                    public void run() {
                        if(spinner.getSelectedItemPosition() == (Arrays.asList(getResources().getStringArray(R.array.fruit)).size()-1)){
                            spinner.setSelection(0);
                        }else{
                            spinner.setSelection(spinner.getSelectedItemPosition()+1);
                        }
                    }
                });
            }
        },0,2000);

        button.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            if (timer != null) {
                timer.cancel();
            }
            String spinnerSelectedItem = (String) spinner.getSelectedItem();
            Toast.makeText(MainActivity.this,spinnerSelectedItem,Toast.LENGTH_LONG).show();
        }
    });
    }

}
 

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

    <Spinner
            android:id="@+id/spinner"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"/>

    <Button
        android:id="@+id/button"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Choose"/>
</LinearLayout>
 
MainActivity:
 
package com.example.MyTest;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.Spinner;

import java.util.Arrays;
import java.util.Timer;
import java.util.TimerTask;

public class MainActivity extends Activity {

   private Spinner spinner;
   private Button button;
   private Timer timer;


    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        spinner = (Spinner) findViewById(R.id.spinner);
        button = (Button) findViewById(R.id.button);

        spinner.setAdapter(new ArrayAdapter(this,
                android.R.layout.simple_spinner_dropdown_item,
                Arrays.asList(getResources().getStringArray(R.array.fruit))));
        timer = new Timer();
        timer.schedule(new TimerTask() {
            @Override
            public void run() {
                runOnUiThread(new Runnable() {
                    @Override
                    public void run() {
                        if(spinner.getSelectedItemPosition() == (Arrays.asList(getResources().getStringArray(R.array.fruit)).size()-1)){
                            spinner.setSelection(0);
                        }else{
                            spinner.setSelection(spinner.getSelectedItemPosition()+1);
                        }
                    }
                });
            }
        },0,2000);

        button.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            if (timer != null) {
                timer.cancel();
            }
            String spinnerSelectedItem = (String) spinner.getSelectedItem();
            Toast.makeText(MainActivity.this,spinnerSelectedItem,Toast.LENGTH_LONG).show();
        }
    });
    }

}