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 |