常用控件的使用

单选框

<RadioGroup                android:id="@+id/radio_g"                 android:layout_width="match_parent"                 android:layout_height="match_parent"                 android:orientation="horizontal" >                 <RadioButton                     android:id="@+id/radioMale"                     android:layout_width="0dp"                     android:layout_height="wrap_content"                     android:layout_weight="1"                     android:checked="true"                     android:text="男"                     android:textSize="20sp" />                 <RadioButton                     android:id="@+id/radilFemale"                     android:layout_width="0dp"                     android:layout_height="wrap_content"                     android:layout_weight="1"                     android:text="女"                     android:textSize="20sp" />             </RadioGroup>        </LinearLayout>

单选框的监听

radioGroup.setOnCheckedChangeListener(new OnCheckedChangeListener() {@Overridepublic void onCheckedChanged(RadioGroup group, int checkedId) {switch (checkedId) {case R.id.radioMale:sex = "男";break;case R.id.radilFemale:sex = "女";break;default:break;}}});

复选框

<LinearLayout                 Android:layout_width="match_parent"                 android:layout_height="wrap_content"                 android:orientation="vertical" >                 <CheckBox                     android:id="@+id/box1"                     android:layout_width="wrap_content"                     android:layout_height="wrap_content"                     android:text="玩游戏"                     android:textSize="18sp" />                 <CheckBox                     android:id="@+id/box2"                     android:layout_width="wrap_content"                     android:layout_height="wrap_content"                     android:text="听音乐"                     android:textSize="18sp" />                 <CheckBox                     android:id="@+id/box3"                     android:layout_width="wrap_content"                     android:layout_height="wrap_content"                     android:text="看电影"                     android:textSize="18sp" />                 <CheckBox                     android:id="@+id/box4"                     android:layout_width="wrap_content"                     android:layout_height="wrap_content"                     android:text="敲代码"                     android:textSize="18sp" />             </LinearLayout>

复选框的监听

public void selectChange() {box1.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {@Overridepublic void onCheckedChanged(CompoundButton buttonView,boolean isChecked) {if (isChecked)box1Str = (String) buttonView.getText();else {box1Str = "";}}});box2......}

对话框 选择性别（单选）

btn_sex.setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View v) {AlertDialog.Builder dialog = new AlertDialog.Builder(FinshActivity.this);dialog.setTitle("请选择");dialog.setSingleChoiceItems(sexs, flag,new DialogInterface.OnClickListener() {@Overridepublic void onClick(DialogInterface dialog,int which) {flag = which;}});dialog.setPositiveButton("确定",new DialogInterface.OnClickListener() {@Overridepublic void onClick(DialogInterface dialog,int which) {btn_sex.setText(sexs[flag]);}});dialog.setNegativeButton("取消",new DialogInterface.OnClickListener() {@Overridepublic void onClick(DialogInterface dialog,int which) {// TODO}});dialog.show();}});

对话框 多选

//      个人爱好的监听事件btn_hobby.setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View v) {AlertDialog.Builder dialog = new AlertDialog.Builder(FinshActivity.this);dialog.setTitle("请选择");dialog.setMultiChoiceItems(hobbys, check,new DialogInterface.OnMultiChoiceClickListener() {@Overridepublic void onClick(DialogInterface dialog,int which, boolean isChecked) {check[which] = isChecked;}});dialog.setPositiveButton("确定",new DialogInterface.OnClickListener() {@Overridepublic void onClick(DialogInterface dialog,int which) {selectString ="";for (int i = 0; i < hobbys.length; i++) {if (check[i] == true) {selectString = selectString + " "+ hobbys[i];btn_hobby.setText(selectString);}}}});dialog.setNegativeButton("取消",new DialogInterface.OnClickListener() {@Overridepublic void onClick(DialogInterface dialog,int which) {// TODO}});dialog.show();}});

对话框 修改密码（弹出一个新的视图） （附文件保存）

btn_changepwd.setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View v) {AlertDialog.Builder dialog = new AlertDialog.Builder(FinshActivity.this);View view = getLayoutInflater().inflate(R.layout.pwd_layout,null);newpwd = (EditText) view.findViewById(R.id.newpwd);oknewpwd = (EditText) view.findViewById(R.id.oknewpwd);dialog.setView(view);dialog.setPositiveButton("确定", newDialogInterface.OnClickListener() {@Overridepublic void onClick(DialogInterface dialog, int which) {String cpwd=newpwd.getText().toString();String cokpwd=oknewpwd.getText().toString();if (cpwd.equals(cokpwd)) {try {File file=new File(FinshActivity.this.getFilesDir(),"info.txt");FileOutputStream fosStream =new FileOutputStream(file);String info = qq+"##"+cpwd;fosStream.write(info.getBytes());fosStream.close();} catch (FileNotFoundException e) {// TODO Auto-generated catch blocke.printStackTrace();} catch (IOException e) {// TODO Auto-generated catch blocke.printStackTrace();}Toast.makeText(FinshActivity.this,"修改密码成功！", Toast.LENGTH_SHORT).show();}else {Toast.makeText(FinshActivity.this,"修改密码失败！", Toast.LENGTH_SHORT).show();}}});dialog.setNegativeButton("取消", newDialogInterface.OnClickListener() {@Overridepublic void onClick(DialogInterface dialog, int which) {//TODO}});dialog.show();}});新建一个R.layout.pwd_layout文件读取：try {File file = new File(this.getFilesDir(), "info.txt");FileInputStream fis = new FileInputStream(file);BufferedReader br = new BufferedReader(new InputStreamReader(fis));String info = br.readLine();qq = info.split("##")[0];pas = info.split("##")[1];} catch (FileNotFoundException e1) {// TODO Auto-generated catch blocke1.printStackTrace();} catch (IOException e1) {// TODO Auto-generated catch blocke1.printStackTrace();}