涉及知识点
一、线性布局(LinearLayout)
二、标签(TextView)
三、按钮(Button)
四、编辑框(EditText)
五、单选按钮组(RadioGroup)
六、单选按钮(RadioButton)
七、复选框(CheckBox)android
根据相关知识点作的脑图
咱们如今作的是第一个案例:设置基本信息
1.思考要怎样作布局
2.准备背景图片
3.xml代码web
<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app
<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">肯定</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ide
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); //经过资源标识得到控件实例 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); } /** * 肯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,不喜欢的能够按照本身喜欢的颜色来调
7.输入信息
8.单击肯定按钮的效果图
9.清除和退出的效果也是有的,只是我没有截图,大家能够本身试一下,期待大家的做品哦!svg