20155210第四次实验

20155210第四次实验

实验内容

package com.example.dell.myapp;

import android.os.Bundle;
import android.app.Activity;
import android.content.Intent;
import android.view.Menu;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnTouchListener;
import android.widget.TextView;
import android.widget.Button;
import android.widget.Toast;
import android.graphics.Color;
import android.widget.AnalogClock;
public class MainActivity extends Activity  {
    /*@Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        Button btnshow1 = (Button) findViewById(R.id.btn1);
        btnshow1.setOnClickListener(new View.OnClickListener()
                                    {
                                        @Override
                                        public void onClick(View v){
                                            Toast toast = Toast.makeText(MainActivity.this,"20155210潘滢昊", Toast.LENGTH_LONG);
                                            toast.show();
                                        }
                                    });
        TextView tv = (TextView) findViewById(R.id.textView1);
        tv.setOnTouchListener(this);
    }
    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it
// is present.
        getMenuInflater().inflate(R.menu.menu_main, menu);
        return true;
    }
    @Override
    public boolean onTouch(View arg0, MotionEvent event) {
        Intent intent = new Intent(this, ThirdActivity.class);
        intent.putExtra("message", "20155210潘滢昊");
        startActivity(intent);
        return true;
    }*/
    int counter = 0;
    int[] colors = { Color.BLACK, Color.BLUE, Color.CYAN,
            Color.DKGRAY, Color.GRAY, Color.GREEN, Color.LTGRAY,
            Color.MAGENTA, Color.RED, Color.WHITE, Color.YELLOW };
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
    }
    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it
// is present.
        getMenuInflater().inflate(R.menu.menu_main, menu);
        return true;
    }
    public void changeColor(View view) {
        if (counter == colors.length) {
            counter = 0;
        }
        view.setBackgroundColor(colors[counter++]);
    }
}

package com.example.dell.myapp;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.Menu;
import android.widget.TextView;
public class SecondActivity extends Activity {
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_second);
        Intent intent = getIntent();
        String message = intent.getStringExtra("message");
        ((TextView) findViewById(R.id.textView1)).setText(message);
    }
    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.menu_second, menu);
        return true;
    }
}

package com.example.dell.myapp;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.Menu;
import android.widget.TextView;
public class ThirdActivity extends Activity {
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_second);
        Intent intent = getIntent();
        String message = intent.getStringExtra("message");
        ((TextView) findViewById(R.id.textView1)).setText(message);
    }
    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.menu_second, menu);
        return true;
    }
}

代码截图

已上传到蓝墨云班课

实验时间表

	题目思考时间	代码编辑时间	代码调试时间
时间	120min	120min	120min