Android_baseComponentExample

<LinearLayoutxmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
tools:context=".MainActivity">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="学号:"
android:textSize="20sp"
/>
<AutoCompleteTextView
android:id="@+id/actv_number"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:ems="5"
android:hint="请输入学号"
android:inputType="number"
android:completionThreshold="2"/>
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="密码:"
android:textSize="20sp"/>
<EditText
android:id="@+id/et_psd"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="请输入密码"
android:textSize="20sp"
android:inputType="textPassword"/>
</LinearLayout>
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="10dp"
>
<TextView
android:id="@+id/hobby"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="爱好："
android:textSize="20sp"
/>
<CheckBox
android:id="@+id/cb_1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@id/hobby"
android:layout_alignParentLeft="true"
android:text="唱歌"
android:checked="true"
android:textSize="15sp"/>
<CheckBox
android:id="@+id/cb_2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@id/hobby"
android:layout_toRightOf="@id/cb_1"
android:layout_marginLeft="5dp"
android:text="打球"
android:checked="true"
android:textSize="15sp"/>
<CheckBox
android:id="@+id/cb_3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@id/hobby"
android:layout_toRightOf="@id/cb_2"
android:layout_marginLeft="5dp"
android:text="玩游戏"
android:textSize="15sp"/>
<CheckBox
android:id="@+id/cb_4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@id/hobby"
android:layout_toRightOf="@id/cb_3"
android:text="敲代码"
android:textSize="15sp"
/>
<CheckBox
android:id="@+id/cb_all"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="全选"
android:textSize="15sp"
android:layout_below="@id/cb_1"
android:layout_centerHorizontal="true"/>
</RelativeLayout>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="性别："
android:textSize="20sp"
/>
<Spinner
android:id="@+id/sex"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
/>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<Button
android:id="@+id/commit"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="bottom"
android:text="提交"
android:textSize="15sp"
/>
<Button
android:id="@+id/reset"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="bottom"
android:text="重置"
android:textSize="15sp"
/>
</LinearLayout>
</LinearLayout>

packagecom.example.day04_work;

importjava.util.ArrayList;
importjava.util.List;

importandroid.os.Bundle;
importandroid.app.Activity;
importandroid.view.View;
importandroid.view.View.OnClickListener;
importandroid.widget.AdapterView;
importandroid.widget.ArrayAdapter;
importandroid.widget.AutoCompleteTextView;
importandroid.widget.Button;
importandroid.widget.CheckBox;
importandroid.widget.CompoundButton;
importandroid.widget.Spinner;
importandroid.widget.Toast;
importandroid.widget.CompoundButton.OnCheckedChangeListener;
importandroid.widget.EditText;
publicclassMainActivityextendsActivityimplementsOnClickListener,OnCheckedChangeListener{

privateEditTextet_psd;
privateCheckBoxcb_1;
privateCheckBoxcb_2;
privateCheckBoxcb_3;
privateCheckBoxcb_4;
privateCheckBoxcb_all;
privateStudentstudent=newStudent();
privateButtonreset;
privateButtoncommit;
privateList<CheckBox>check1;
privateStringsrcnumber;
privateStringsrcpsd;
privateAutoCompleteTextViewactv_number;
privateCheckBox[]checks;
privateSpinnerspinner_sex;
privateStringsex;

@Override
protectedvoidonCreate(BundlesavedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
actv_number=(AutoCompleteTextView)findViewById(R.id.actv_number);
//得到数据源
String[]stringArray=getResources().getStringArray(R.array.number);
//定义适配器
ArrayAdapter<String>adapter=newArrayAdapter<String>(MainActivity.this,android.R.layout.simple_dropdown_item_1line,stringArray);
//设置适配器
actv_number.setAdapter(adapter);
//得到控件
et_psd=(EditText)findViewById(R.id.et_psd);
cb_1=(CheckBox)findViewById(R.id.cb_1);
cb_2=(CheckBox)findViewById(R.id.cb_2);
cb_3=(CheckBox)findViewById(R.id.cb_3);
cb_4=(CheckBox)findViewById(R.id.cb_4);
cb_all=(CheckBox)findViewById(R.id.cb_all);
reset=(Button)findViewById(R.id.reset);
commit=(Button)findViewById(R.id.commit);

spinner_sex=(Spinner)findViewById(R.id.sex);
ArrayAdapter<String>adapter2=newArrayAdapter<String>(getApplicationContext(),android.R.layout.simple_dropdown_item_1line,newString[]{"男","女"});
spinner_sex.setAdapter(adapter2);
//得到初始化时的所有数据
getInitialContent();
//为所有控件设置监听事件
actv_number.setOnClickListener(this);
et_psd.setOnClickListener(this);
cb_1.setOnCheckedChangeListener(this);
cb_2.setOnCheckedChangeListener(this);
cb_3.setOnCheckedChangeListener(this);
cb_4.setOnCheckedChangeListener(this);
cb_all.setOnCheckedChangeListener(this);
//提交按钮监听事件
commit.setOnClickListener(newOnClickListener(){

@Override
publicvoidonClick(Viewv){
Stringnumber=actv_number.getText().toString();
Stringpsd=et_psd.getText().toString();
if(number.length()!=0&&psd.length()!=0){
student.setNumber(Integer.parseInt(number));
student.setPsd(psd);
}else{
Toast.makeText(MainActivity.this,"学号密码不能为空！",0).show();
return;
}
Stringresult="";
//TODOAuto-generatedmethodstub
for(CheckBoxcheckBox:checks){
if(checkBox.isChecked()){
result+=checkBox.getText().toString();
}
}
//安卓自带工具TextUtilstextUtils判断字符串是否为空
//TextUtils.isEmpty(string)
if(result.length()!=0){
student.setHobby(result);
}else{
Toast.makeText(MainActivity.this,"爱好不能为空",0).show();
}
student.setSex(sex);
Toast.makeText(MainActivity.this,student.toString(),1).show();

}
});
//重置按钮监听事件
reset.setOnClickListener(newOnClickListener(){

@Override
publicvoidonClick(Viewv){
//TODOAuto-generatedmethodstub
et_psd.setText(srcpsd);
//学号获得焦点，光标在学号输入框上
actv_number.requestFocus();
actv_number.setText(srcnumber);
//将初始化复选框数组中的控件设置为选中
for(CheckBoxcheckBox2:check1){
checkBox2.setChecked(true);
}
//遍历所有复选框，如果初始化复选框控件中不包含该复选框，设置为不选中
for(CheckBoxcheckBox:checks){
if(!check1.contains(checkBox)){
checkBox.setChecked(false);
}
}
spinner_sex.setSelection(0,true);
}

});
//下拉列表选择性别
spinner_sex.setOnItemSelectedListener(newAdapterView.OnItemSelectedListener(){

@Override
publicvoidonItemSelected(AdapterView<?>parent,Viewview,
intposition,longid){
sex=spinner_sex.getItemAtPosition(position).toString();

}

@Override
publicvoidonNothingSelected(AdapterView<?>parent){
//TODOAuto-generatedmethodstub

}
});

}
/**
*得到初始化数据
*/
privatevoidgetInitialContent(){
//TODOAuto-generatedmethodstub
srcnumber=actv_number.getText().toString();
srcpsd=et_psd.getText().toString();
checks=newCheckBox[]{cb_1,cb_2,cb_3,cb_4,cb_all};
check1=newArrayList<CheckBox>();
for(CheckBoxcheckBox:checks){
if(checkBox.isChecked()){
check1.add(checkBox);
}
}
spinner_sex.setSelection(0,true);
}

/**
复选框监听事件：
*全选功能:
*1.全选状态改变：
*1.1全选框选中时，所有复选框都选中
*1.2全选框取消时，如果所有复选框都为选中状态，则将所有复选框设置为不选中
*2.其他复选框选中时：
*2.1当所有复选框选中时，将全选框设置为选中
*2.2否则，将全选框设置为不选中
*/
@Override
publicvoidonCheckedChanged(CompoundButtonbuttonView,booleanisChecked){
List<String>list=newArrayList<String>();
//TODOAuto-generatedmethodstub
if(buttonView.getId()==cb_all.getId()){
if(cb_all.isChecked()){
cb_1.setChecked(true);
cb_2.setChecked(true);
cb_3.setChecked(true);
cb_4.setChecked(true);
}elseif(cb_1.isChecked()&&cb_2.isChecked()&&cb_3.isChecked()&&cb_4.isChecked()){
cb_1.setChecked(false);
cb_2.setChecked(false);
cb_3.setChecked(false);
cb_4.setChecked(false);
}
}else{
if(cb_1.isChecked()&&cb_2.isChecked()&&cb_3.isChecked()&&cb_4.isChecked()){
cb_all.setChecked(true);
}else{
cb_all.setChecked(false);
}

}

}

@Override
publicvoidonClick(Viewv){
//TODOAuto-generatedmethodstub
Stringnumber=actv_number.getText().toString();
Stringpsd=et_psd.getText().toString();
if(number!=null&&psd!=null){
Toast.makeText(MainActivity.this,"学号："+number+",密码"+psd,0).show();
}
}

}