开发笔记记录一下

 

     Intent i  = new Intent();
     i.setClass(this, B.class);
     i.putExtra("int", 1000);
     i.putExtra("String", "测试");
     i.putExtra("char", 'c');
     startActivity(i);
     finish();---结束当前的Activity ，不然我们按返回键，就会一次显示该Activity 了
 

     

     int temp1 = i.getIntExtra("int", 0);
     String temp2 = i.getStringExtra("String");
     char temp3 = i.getCharExtra("char", 'a');
     temp1 = i.getIntExtra("int", 0);
     temp2 = i.getStringExtra("String");
     temp3 = i.getCharExtra("char", 'a');
     boolean temp4 = i.getBooleanExtra("boolean", false);