代写 android graph 

 
 



package com.example.xiong;

import android.app.Activity;
import android.graphics.Color;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;

public class MainActivity extends Activity {
 /** Called when the activity is first created. */
 private TextView txt;
 private Button btn;
 @Override
 public void onCreate(Bundle savedInstanceState)
 {
 super.onCreate(savedInstanceState);
 setContentView(R.layout.activity_main);
 btn=(Button)findViewById(R.id.button1);
 txt=(TextView)findViewById(R.id.textView1);
 btn.setOnClickListener(new click() );
 }
 class click implements View.OnClickListener
 {
 public void onClick(View v)
 {
 int Black = 0xffcccccc;
 txt.setText(“难搞哦”);
 txt.setTextColor(Color.YELLOW);
 txt.setBackgroundColor(Black);
 }
 }
}