涉及知识点
1、线性布局(LinearLayout)
2、标签(TextView)
3、按钮(Button)
4、编辑框(EditText)
5、单选按钮组(RadioGroup)
6、单选按钮(RadioButton)
7、复选框(CheckBox)
根据相关知识点做的脑图

我们现在做的是第一个案例:设置基本信息
1.思考要怎样做布局
2.准备背景图片
3.xml代码
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@mipmap/background"
android:orientation="vertical"
android:paddingLeft="20dp"
android:paddingRight="20dp"
android:paddingTop="30dp" >
<TextView
android:id="@+id/tv_set_information"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_marginBottom="30dp"
android:text="@string/set_information"
android:textColor="#0000ff"
android:textSize="30sp" />
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center_vertical"
android:orientation="horizontal" >
<TextView
android:id="@+id/tv_name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/name"
android:textColor="#000000"
android:textSize="16sp" />
<EditText
android:id="@+id/edt_name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:ems="10"
android:hint="@string/input_name"
android:singleLine="true" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center_vertical"
android:orientation="horizontal" >
<TextView
android:id="@+id/tv_gender"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/gender"
android:textColor="#000000"
android:textSize="16sp" />
<RadioGroup
android:id="@+id/rg_gender"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal" >
<RadioButton
android:id="@+id/rb_male"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:checked="true"
android:text="@string/male" />
<RadioButton
android:id="@+id/rb_female"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="15dp"
android:text="@string/female" />
</RadioGroup>
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center_vertical"
android:orientation="horizontal" >
<TextView
android:id="@+id/tv_hobby"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/hobby"
android:textColor="#000000"
android:textSize="16sp" />
<CheckBox
android:id="@+id/cb_music"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/music" />
<CheckBox
android:id="@+id/cb_read"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/read" />
<CheckBox
android:id="@+id/cb_food"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/food" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="30dp" >
<Button
android:id="@+id/btn_ok"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="1"
android:onClick="doOK"
android:text="@string/ok" />
<Button
android:id="@+id/btn_clear"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="1"
android:onClick="doClear"
android:text="@string/clear" />
<Button
android:id="@+id/btn_exit"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="1"
android:onClick="doExit"
android:text="@string/exit" />
</LinearLayout>
<TextView
android:id="@+id/tv_result"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="30dp"
android:textSize="15sp" />
</LinearLayout>
4.string代码
<resources>
<string name="app_name">设置基本信息</string>
<string name="male">男</string>
<string name="female">女</string>
<string name="single">单身</string>
<string name="married">已婚</string>
<string name="music">音乐</string>
<string name="read">阅读</string>
<string name="food">美食</string>
<string name="ok">确定</string>
<string name="clear">清除</string>
<string name="exit">退出</string>
<string name="action_settings">设置</string>
<string name="set_information">设置基本信息</string>
<string name="gender">性别:</string>
<string name="marriage">婚姻:</string>
<string name="hobby">爱好:</string>
<string name="name">姓名:</string>
<string name="input_name">请输入姓名</string>
</resources>
5.Java代码
package net.hw.setbasicinfornation;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.CheckBox;
import android.widget.EditText;
import android.widget.RadioButton;
import android.widget.RadioGroup;
import android.widget.TextView;
public class MainActivity extends Activity {
private EditText edtName;
private RadioGroup rgGender;
private RadioButton rbMale;
private RadioButton rbFemale;
private CheckBox cbMusic;
private CheckBox cbFood;
private CheckBox cbRead;
private TextView tvResult;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
//利用布局资源文件设置用户界面
setContentView(R.layout.activity_main);
//通过资源标识获得控件实例
edtName = (EditText) findViewById(R.id.edt_name);
rgGender = (RadioGroup) findViewById(R.id.rg_gender);
rbMale = (RadioButton) findViewById(R.id.rb_male);
rbFemale = (RadioButton) findViewById(R.id.rb_female);
cbRead = (CheckBox) findViewById(R.id.cb_read);
cbMusic = (CheckBox) findViewById(R.id.cb_music);
cbFood = (CheckBox) findViewById(R.id.cb_food);
tvResult = (TextView) findViewById(R.id.tv_result);
}
/**
* 确定按钮单击事件处理方法
* @param view
*/
public void doOK(View view){
//获取姓名
String strName = edtName.getText().toString();
//获取性别
String strGender ="";
switch (rgGender.getCheckedRadioButtonId()){
case R.id.rb_male:
strGender = rbMale.getText().toString();
break;
case R.id.rb_female:
strGender = rbFemale.getText().toString();
break;
}
//获取爱好
StringBuilder builder = new StringBuilder();
if(cbMusic.isChecked()){
builder.append(cbMusic.getText().toString()+"、");
}
if(cbFood.isChecked()){
builder.append(cbFood.getText().toString()+"、");
}
if(cbRead.isChecked()){
builder.append(cbRead.getText().toString());
}
String strHobbies = builder.toString();
strHobbies = strHobbies.substring(0,strHobbies.length()-1);
//组合设置的信息
String strInFormation = "姓名:"+strName + "\n性别:" + strGender + "\n爱好:"+strHobbies;
//在标签中显示设置的信息
tvResult.setText(strInFormation);
}
/**
* 清除按钮单击事件处理方法
* @param view
*/
public void doClear(View view){
edtName.setText("");
rbMale.setChecked(true);
cbMusic.setChecked(false);
cbRead.setChecked(false);
cbFood.setChecked(false);
tvResult.setText("");
edtName.requestFocus();
}
/**
* 退出按钮单击事件处理方法
* @param view
*/
public void doExit(View view){
finish();
}
}
6.打开程序后的效果图,字体颜色我是随便调的,不喜欢的可以按照自己喜欢的颜色来调
7.输入信息
8.单击确定按钮的效果图
9.清除和退出的效果也是有的,只是我没有截图,你们可以自己试一下,期待你们的作品哦!