AndroidStudio输入生日计算星座

第一步：在主界面写两个startactivity，一个用于接收第二个页面传递过来的数据；另一个用于发送用户输入的数值

public class MainActivity extends AppCompatActivity { private Button button; private TextView tvs1; private TextView tvs2; private TextView tv1; private TextView tv2; private EditText name; private EditText month; private EditText day; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); tv1 = (TextView) findViewById(R.id.tvs1); tv2 = (TextView) findViewById(R.id.tvs2); Intent intent1 = getIntent();//获取Intent对象 //取出对key中的值 String result01 = intent1.getStringExtra("result01"); String result02 = intent1.getStringExtra("result02"); //String day= intent1.getStringExtra("day"); tv1.setText(result01); tv2.setText(result02); Button btn1 = (Button) findViewById(R.id.btn1); name = (EditText) findViewById(R.id.name); mOnth= (EditText) findViewById(R.id.month); day = (EditText) findViewById(R.id.day); Intent intent = new Intent(this,SecondActivity.class); btn1.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { intent.putExtra("name",name.getText().toString().trim()); intent.putExtra("month",month.getText().toString().trim()); intent.putExtra("day",day.getText().toString().trim()); startActivity(intent); finish(); } }); } }

第二步：写MainActivity的布局文件，这个可以根据个人的需求设计。

第三步：写第二个activity

public class SecondActivity extends AppCompatActivity { private TextView tv1; private TextView tv2; private TextView tv3; private Button btn2; private TextView result01; private TextView result02; private TextView constellation; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_second); tv1 = (TextView) findViewById(R.id.tv_1); tv2 = (TextView) findViewById(R.id.tv_2); tv3 = (TextView) findViewById(R.id.tv_3); Intent intent1 = getIntent();//获取Intent对象 //取出对key中的值 String name = intent1.getStringExtra("name"); String mOnth= intent1.getStringExtra("month"); String day= intent1.getStringExtra("day"); //计算星座 calculate(); String cOnstellation=calculate(); tv1.setText(name); tv2.setText(constellation); Button btn2 = (Button) findViewById(R.id.btn2); result01= (TextView) findViewById(R.id.tv_1); result02 = (TextView) findViewById(R.id.tv_2); Intent intent = new Intent(this,MainActivity.class); btn2.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { intent.putExtra("result01",result01.getText().toString().trim()); intent.putExtra("result02",result02.getText().toString().trim()); startActivity(intent); } }); } private String calculate() { String mOnth= getIntent().getStringExtra("month"); String day = getIntent().getStringExtra("day"); int m=Integer.parseInt(month); int d=Integer.parseInt(day); String name1=""; if(m>0 &&m<13 && d>0 && d<32) { if((m ==3 && d>20) || (m ==4 && d<21)) { name1 = "白羊座!"; }else if((m ==4 && d>20) || (m ==5 && d<21)){ name1 = "金牛座!"; }else if((m ==5 && d>20) || (m ==6 && d<22)){ name1="双子座!"; }else if((m ==6 && d>21) || (m ==7 && d<23)){ name1="巨蟹座!"; }else if((m ==7 && d>22) || (m ==8 && d<23)){ name1="狮子座!"; }else if((m ==8 && d>22) || (m ==9 && d<23)){ name1="处女座!"; }else if((m ==9 && d>22) || (m ==10 && d<23)){ name1="天枰座!"; }else if((m ==10 && d>22) || (m ==11 && d<22)){ name1="天蝎座!"; }else if((m ==11 && d>21) || (m ==12 && d<22)){ name1="射手座!"; }else if((m ==12 && d>21) || (m ==1 && d<20)){ name1="摩羯座!"; }else if((m ==1 && d>19) || (m ==2 && d<19)){ name1="水牛座!"; }else if((m ==2 && d>18) || (m ==3 && d<21)) { name1 = "双鱼座!"; } }else{ name1="您输入的生日格式不正确或者不是真实生日！"; } return name1; }

}

第四步：写第二个activity的布局文件

下面是运行效果：