--------------第一个界面-------------
public class ex_ui2 extends Activity{
String out="isnull";
EditText editText;
RadioButton rb1;
RadioButton rb2;
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.ex_ui2);
TextView textView=(TextView) findViewById(R.id.textView1);
textView.setText("计算标准体重");
rb1=(RadioButton) findViewById(R.id.radioButton1);
rb2=(RadioButton) findViewById(R.id.radioButton2);
editText=(EditText) findViewById(R.id.editText1);
Button button=(Button) findViewById(R.id.button1);
editText.setTextColor(Color.GRAY);
editText.setOnFocusChangeListener(new OnFocusChangeListener() {
@Override
public void onFocusChange(View v, boolean hasFocus) {
// TODO Auto-generated method stub
if(editText.getText().toString().equals(""))
{
editText.setText("请输入");
editText.setTextColor(Color.GRAY);
}
else {
if(editText.getText().toString().equals("请输入"))
{
editText.setText("");
editText.setTextColor(Color.BLACK);
}
}
}
});
button.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
int height = 0;
try {
height=Integer.parseInt(editText.getText().toString());
} catch (NumberFormatException e) {
// TODO: handle exception
showDialog(1);
return;
}
String sex;
if(rb1.isChecked())
{
sex="M";
}
else
{
sex="F";
}
Bundle bundle=new Bundle();
bundle.putString("sex", sex);
bundle.putInt("height", height);
Intent intent=new Intent();
intent.setClass(ex_ui2.this, ex_ui1.class);
intent.putExtras(bundle);
startActivity(intent);
}
});
}
@Override
protected Dialog onCreateDialog(int id) {
// TODO Auto-generated method stub
switch (id)
{
case 1:
return new AlertDialog.Builder(ex_ui2.this).setTitle("提示")
.setMessage("输入的身高不正确。\n事例：身高170cm，输入170。")
.setIcon(android.R.drawable.ic_dialog_info)
.setPositiveButton("确定",new OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
// TODO Auto-generated method stub
editText.setText("");
editText.setTextColor(Color.BLACK);
}
}).create();
case 2:
return new AlertDialog.Builder(ex_ui2.this).setTitle("提示")
.setMessage(out)
.setIcon(android.R.drawable.ic_dialog_info)
.setPositiveButton("确定",new OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
// TODO Auto-generated method stub
ex_ui2.this.finish();
}
}).create();
default:
return null;
}