我有一个带复选框的应用程序，我该如何保存它们？
我的布局是：
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout android:id="@+id/list_linear"
android:layout_width="fill_parent" android:layout_height="fill_parent"
xmlns:android="http://schemas.android.com/apk/res/android">
<ScrollView android:id="@+id/ScrollView01"
android:layout_width="fill_parent"
android:layout_height="match_parent">
<TableLayout
android:id="@+id/tableLayout1"
android:layout_height="match_parent"
android:layout_width="wrap_content">
<CheckBox android:textSize="30sp" android:background="@drawable/checkbox_background" android:button="@drawable/checkbox" android:text="Ontbijtkoek" android:id="@+id/checkBox1" android:layout_width="wrap_content" android:layout_height="wrap_content"></CheckBox>
<CheckBox android:textSize="30sp" android:background="@drawable/checkbox_background" android:button="@drawable/checkbox" android:text="Koekrepen" android:id="@+id/checkBox70" android:layout_width="wrap_content" android:layout_height="wrap_content"></CheckBox>
<CheckBox android:textSize="30sp" android:background="@drawable/checkbox_background" android:button="@drawable/checkbox" android:text="Beschuit" android:id="@+id/checkBox69" android:layout_width="wrap_content" android:layout_height="wrap_content"></CheckBox>
<CheckBox android:textSize="30sp" android:background="@drawable/checkbox_background" android:button="@drawable/checkbox" android:text="Chocolade" android:id="@+id/checkBox68" android:layout_width="wrap_content" android:layout_height="wrap_content"></CheckBox>
<CheckBox android:textSize="30sp" android:background="@drawable/checkbox_background" android:button="@drawable/checkbox" android:text="Koekjes" android:id="@+id/checkBox67" android:layout_width="wrap_content" android:layout_height="wrap_content"></CheckBox>
<CheckBox android:textSize="30sp" android:background="@drawable/checkbox_background" android:button="@drawable/checkbox" android:text="Brood" android:id="@+id/checkBox66" android:layout_width="wrap_content" android:layout_height="wrap_content"></CheckBox>
<CheckBox android:textSize="30sp" android:background="@drawable/checkbox_background" android:button="@drawable/checkbox" android:text="Hagelslag puur" android:id="@+id/checkBox65" android:layout_width="wrap_content" android:layout_height="wrap_content"></CheckBox>
<CheckBox android:textSize="30sp" android:background="@drawable/checkbox_background" android:button="@drawable/checkbox" android:text="Hagelslag mix" android:id="@+id/checkBox64" android:layout_width="wrap_content" android:layout_height="wrap_content"></CheckBox>
<CheckBox android:textSize="30sp" android:background="@drawable/checkbox_background" android:button="@drawable/checkbox" android:text="Pindakaas" android:id="@+id/checkBox63" android:layout_width="wrap_content" android:layout_height="wrap_content"></CheckBox>
<CheckBox android:textSize="30sp" android:background="@drawable/checkbox_background" android:button="@drawable/checkbox" android:text="Pasta" android:id="@+id/checkBox62" android:layout_width="wrap_content" android:layout_height="wrap_content"></CheckBox>
<CheckBox android:textSize="30sp" android:background="@drawable/checkbox_background" android:button="@drawable/checkbox" android:text="Jam" android:id="@+id/checkBox61" android:layout_width="wrap_content" android:layout_height="wrap_content"></CheckBox>
<CheckBox android:textSize="30sp" android:background="@drawable/checkbox_background" android:button="@drawable/checkbox" android:text="Thee" android:id="@+id/checkBox60" android:layout_width="wrap_content" android:layout_height="wrap_content"></CheckBox>
<CheckBox android:textSize="30sp" android:background="@drawable/checkbox_background" android:button="@drawable/checkbox" android:text="Boter" android:id="@+id/checkBox59" android:layout_width="wrap_content" android:layout_height="wrap_content"></CheckBox>
<CheckBox android:textSize="30sp" android:background="@drawable/checkbox_background" android:button="@drawable/checkbox" android:text="Smeerkaas" android:id="@+id/checkBox58" android:layout_width="wrap_content" android:layout_height="wrap_content"></CheckBox>
<CheckBox android:textSize="30sp" android:background="@drawable/checkbox_background" android:button="@drawable/checkbox" android:text="Suiker" android:id="@+id/checkBox57" android:layout_width="wrap_content" android:layout_height="wrap_content"></CheckBox>
<CheckBox android:textSize="30sp" android:background="@drawable/checkbox_background" android:button="@drawable/checkbox" android:text="Groente" android:id="@+id/checkBox56" android:layout_width="wrap_content" android:layout_height="wrap_content"></CheckBox>
<CheckBox android:textSize="30sp" android:background="@drawable/checkbox_background" android:button="@drawable/checkbox" android:text="Fruit" android:id="@+id/checkBox55" android:layout_width="wrap_content" android:layout_height="wrap_content"></CheckBox>
<CheckBox android:textSize="30sp" android:background="@drawable/checkbox_background" android:button="@drawable/checkbox" android:text="Aardappeltjes" android:id="@+id/checkBox54" android:layout_width="wrap_content" android:layout_height="wrap_content"></CheckBox>
<CheckBox android:textSize="30sp" android:background="@drawable/checkbox_background" android:button="@drawable/checkbox" android:text="Zoutjes" android:id="@+id/checkBox53" android:layout_width="wrap_content" android:layout_height="wrap_content"></CheckBox>
<CheckBox android:textSize="30sp" android:background="@drawable/checkbox_background" android:button="@drawable/checkbox" android:text="Sapjes" android:id="@+id/checkBox52" android:layout_width="wrap_content" android:layout_height="wrap_content"></CheckBox>
</TableLayout>
</ScrollView>
</LinearLayout>
（是的，我现在，这是很多复选框）
我的main.class是：
package com.boodschappen;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.content.DialogInterface;
import android.content.SharedPreferences;
import android.graphics.Color;
import android.graphics.Typeface;
import android.os.Bundle;
import android.preference.PreferenceManager;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.Window;
import android.view.WindowManager;
import android.widget.CheckBox;
import android.widget.TextView;
public class main extends Activity {
@Override
public void onBackPressed() {
showDialog(MENU_EXIT);
super.onBackPressed();
}
private static final int MENU_SAVE = 0;
private static final int MENU_DIALOG = 2;
private static final int MENU_EXIT = 3;
private static final int MENU_LOAD = 1;
CheckBox een, v52, v53, v54, v55, v56, v57, v58, v59, z60, z61, z62, z63, z64, z65, z66, z67, z68, z69, z70 ;
@Override
public void onCreate(Bundle icicle) {
super.onCreate(icicle);
this.requestWindowFeature(Window.FEATURE_NO_TITLE);
this.getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
WindowManager.LayoutParams.FLAG_FULLSCREEN);
this.getWindow().setFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON,
WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
setContentView(R.layout.list);
Typeface fontFace = Typeface.createFromAsset(getAssets(), "fonts/ankehand.ttf");
TextView someText1 = (TextView)findViewById(R.id.checkBox1);
TextView someText52 = (TextView)findViewById(R.id.checkBox52);
TextView someText53 = (TextView)findViewById(R.id.checkBox53);
TextView someText54 = (TextView)findViewById(R.id.checkBox54);
TextView someText55 = (TextView)findViewById(R.id.checkBox55);
TextView someText56 = (TextView)findViewById(R.id.checkBox56);
TextView someText57 = (TextView)findViewById(R.id.checkBox57);
TextView someText58 = (TextView)findViewById(R.id.checkBox58);
TextView someText59 = (TextView)findViewById(R.id.checkBox59);
TextView someText60 = (TextView)findViewById(R.id.checkBox60);
TextView someText61 = (TextView)findViewById(R.id.checkBox61);
TextView someText62 = (TextView)findViewById(R.id.checkBox62);
TextView someText63 = (TextView)findViewById(R.id.checkBox63);
TextView someText64 = (TextView)findViewById(R.id.checkBox64);
TextView someText65 = (TextView)findViewById(R.id.checkBox65);
TextView someText66 = (TextView)findViewById(R.id.checkBox66);
TextView someText67 = (TextView)findViewById(R.id.checkBox67);
TextView someText68 = (TextView)findViewById(R.id.checkBox68);
TextView someText69 = (TextView)findViewById(R.id.checkBox69);
TextView someText70 = (TextView)findViewById(R.id.checkBox70);
someText1.setTypeface(fontFace); // only typeface
someText52.setTypeface(fontFace); // only typeface
someText53.setTypeface(fontFace); // only typeface
someText54.setTypeface(fontFace); // only typeface
someText55.setTypeface(fontFace); // only typeface
someText56.setTypeface(fontFace); // only typeface
someText57.setTypeface(fontFace); // only typeface
someText58.setTypeface(fontFace); // only typeface
someText59.setTypeface(fontFace); // only typeface
someText60.setTypeface(fontFace); // only typeface
someText61.setTypeface(fontFace); // only typeface
someText62.setTypeface(fontFace); // only typeface
someText63.setTypeface(fontFace); // only typeface
someText64.setTypeface(fontFace); // only typeface
someText65.setTypeface(fontFace); // only typeface
someText66.setTypeface(fontFace); // only typeface
someText67.setTypeface(fontFace); // only typeface
someText68.setTypeface(fontFace); // only typeface
someText69.setTypeface(fontFace); // only typeface
someText70.setTypeface(fontFace); // only typeface
een = (CheckBox) findViewById(R.id.checkBox1);
een.setOnClickListener(new OnClickListener(){
public void onClick(View v){
if(((CheckBox) v).isChecked()){
een.setTextColor(R.color.black);
} else {
een.setTextColor(Color.rgb(255,255,255));
}
}
});
v42 = (CheckBox) findViewById(R.id.checkBox52);
v42.setOnClickListener(new OnClickListener(){
public void onClick(View v){
if(((CheckBox) v).isChecked()){
v42.setTextColor(R.color.black);
} else {
v42.setTextColor(Color.rgb(255,255,255));
}
}
});
v43 = (CheckBox) findViewById(R.id.checkBox53);
v43.setOnClickListener(new OnClickListener(){
public void onClick(View v){
if(((CheckBox) v).isChecked()){
v43.setTextColor(R.color.black);
} else {
v43.setTextColor(Color.rgb(255,255,255));
}
}
});
v44 = (CheckBox) findViewById(R.id.checkBox54);
v44.setOnClickListener(new OnClickListener(){
public void onClick(View v){
if(((CheckBox) v).isChecked()){
v44.setTextColor(R.color.black);
} else {
v44.setTextColor(Color.rgb(255,255,255));
}
}
});
v45 = (CheckBox) findViewById(R.id.checkBox55);
v45.setOnClickListener(new OnClickListener(){
public void onClick(View v){
if(((CheckBox) v).isChecked()){
v45.setTextColor(R.color.black);
} else {
v45.setTextColor(Color.rgb(255,255,255));
}
}
});
v46 = (CheckBox) findViewById(R.id.checkBox56);
v46.setOnClickListener(new OnClickListener(){
public void onClick(View v){
if(((CheckBox) v).isChecked()){
v46.setTextColor(R.color.black);
} else {
v46.setTextColor(Color.rgb(255,255,255));
}
}
});
v47 = (CheckBox) findViewById(R.id.checkBox57);
v47.setOnClickListener(new OnClickListener(){
public void onClick(View v){
if(((CheckBox) v).isChecked()){
v47.setTextColor(R.color.black);
} else {
v47.setTextColor(Color.rgb(255,255,255));
}
}
});
v48 = (CheckBox) findViewById(R.id.checkBox58);
v48.setOnClickListener(new OnClickListener(){
public void onClick(View v){
if(((CheckBox) v).isChecked()){
v48.setTextColor(R.color.black);
} else {
v48.setTextColor(Color.rgb(255,255,255));
}
}
});
v49 = (CheckBox) findViewById(R.id.checkBox59);
v49.setOnClickListener(new OnClickListener(){
public void onClick(View v){
if(((CheckBox) v).isChecked()){
v49.setTextColor(R.color.black);
} else {
v49.setTextColor(Color.rgb(255,255,255));
}
}
});
v50 = (CheckBox) findViewById(R.id.checkBox60);
v50.setOnClickListener(new OnClickListener(){
public void onClick(View v){
if(((CheckBox) v).isChecked()){
v50.setTextColor(R.color.black);
} else {
v50.setTextColor(Color.rgb(255,255,255));
}
}
});
v51 = (CheckBox) findViewById(R.id.checkBox61);
v51.setOnClickListener(new OnClickListener(){
public void onClick(View v){
if(((CheckBox) v).isChecked()){
v51.setTextColor(R.color.black);
} else {
v51.setTextColor(Color.rgb(255,255,255));
}
}
});
v52 = (CheckBox) findViewById(R.id.checkBox62);
v52.setOnClickListener(new OnClickListener(){
public void onClick(View v){
if(((CheckBox) v).isChecked()){
v52.setTextColor(R.color.black);
} else {
v52.setTextColor(Color.rgb(255,255,255));
}
}
});
v53 = (CheckBox) findViewById(R.id.checkBox63);
v53.setOnClickListener(new OnClickListener(){
public void onClick(View v){
if(((CheckBox) v).isChecked()){
v53.setTextColor(R.color.black);
} else {
v53.setTextColor(Color.rgb(255,255,255));
}
}
});
v54 = (CheckBox) findViewById(R.id.checkBox64);
v54.setOnClickListener(new OnClickListener(){
public void onClick(View v){
if(((CheckBox) v).isChecked()){
v54.setTextColor(R.color.black);
} else {
v54.setTextColor(Color.rgb(255,255,255));
}
}
});
v55 = (CheckBox) findViewById(R.id.checkBox65);
v55.setOnClickListener(new OnClickListener(){
public void onClick(View v){
if(((CheckBox) v).isChecked()){
v55.setTextColor(R.color.black);
} else {
v55.setTextColor(Color.rgb(255,255,255));
}
}
});
v56 = (CheckBox) findViewById(R.id.checkBox66);
v56.setOnClickListener(new OnClickListener(){
public void onClick(View v){
if(((CheckBox) v).isChecked()){
v56.setTextColor(R.color.black);
} else {
v56.setTextColor(Color.rgb(255,255,255));
}
}
});
v57 = (CheckBox) findViewById(R.id.checkBox67);
v57.setOnClickListener(new OnClickListener(){
public void onClick(View v){
if(((CheckBox) v).isChecked()){
v57.setTextColor(R.color.black);
} else {
v57.setTextColor(Color.rgb(255,255,255));
}
}
});
v58 = (CheckBox) findViewById(R.id.checkBox68);
v58.setOnClickListener(new OnClickListener(){
public void onClick(View v){
if(((CheckBox) v).isChecked()){
v58.setTextColor(R.color.black);
} else {
v58.setTextColor(Color.rgb(255,255,255));
}
}
});
v59 = (CheckBox) findViewById(R.id.checkBox69);
v59.setOnClickListener(new OnClickListener(){
public void onClick(View v){
if(((CheckBox) v).isChecked()){
v59.setTextColor(R.color.black);
} else {
v59.setTextColor(Color.rgb(255,255,255));
}
}
});
z60 = (CheckBox) findViewById(R.id.checkBox70);
z60.setOnClickListener(new OnClickListener(){
public void onClick(View v){
if(((CheckBox) v).isChecked()){
z60.setTextColor(R.color.black);
} else {
z60.setTextColor(Color.rgb(255,255,255));
}
}
});
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
menu.add(0, MENU_SAVE, 0, "Opslaan");
menu.add(1,MENU_LOAD, 1, "Laden");
menu.add(2, MENU_DIALOG, 2, "About");
menu.add(3, MENU_EXIT, 3, "Exit");
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case MENU_SAVE:
Here i want to Save the Checkboxes
return true;
case MENU_LOAD:
Here i want to Load the Checkboxes
return true;
case MENU_DIALOG:
Dialog dialog = new Dialog(lidl.this);
dialog.setContentView(R.layout.custom_dialog);
dialog.setTitle("About");
dialog.setCancelable(true);
//there are a lot of settings, for dialog, check them all out!
//set up text
TextView text = (TextView) dialog.findViewById(R.id.text);
text.setText("Hallo, deze applicatie is een variant op Appie©. Deze applicatie is op volgorde van de winkel waar wij meestal onze boodschappen doen. Wilt u ook zo'n applicatie, ga dan naar het tabje Mail. Zet daarin welke winkel(s) het zijn, en wat u daar altijd koopt.");
dialog.show();
return true;
case MENU_EXIT:
AlertDialog.Builder alt_bld = new AlertDialog.Builder(this);
alt_bld.setMessage("Weet je zeker dat je wilt afsluiten?")
.setCancelable(false)
.setPositiveButton("Ja", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
System.exit(0);
}
})
.setNegativeButton("Nee", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
// Action for 'NO' Button
dialog.cancel();
}
});
AlertDialog alert = alt_bld.create();
// Title for AlertDialog
alert.setTitle("Exit");
alert.show();
return true;
}
return false;
}
}
你现在该怎么做？
我希望你理解我，我希望你能帮助我。
Gaauwe
编辑：
以下是我想保存并加载内容的代码：
@Override
public boolean onCreateOptionsMenu(Menu menu) {
menu.add(2, MENU_SAVE, 2, "Save");
menu.add(3, MENU_LOAD, 3, "Load");
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case MENU_SAVE:
Here save the checkboxes
return true;
case MENU_LOAD:
Here load the checkboxes
return true;
答案 0 :(得分：15)
SharedPreferences怎么样？您可以以键：值格式存储和加载复选框的状态和名称。 How to use。
E. g。这样的事情：
// Init
SharedPreferences settings = getSharedPreferences("mysettings", 0);
SharedPreferences.Editor editor = settings.edit();
// Save
boolean checkBoxValue = v42.isChecked();
editor.putBoolean("v42", checkBoxValue);
editor.commit();;
// Load
v42.setChecked(settings.getBoolean("v42", false));
但是你应该实现更有效的方法，可能是通过所有复选框循环读取它的名字或id，你可以在离开活动之前调用它。
答案 1 :(得分：2)
覆盖onSaveInstanceState（Bundle outState）并将哪些内容写入outState。然后，通过从传递给onCreate（Bundle savedInstanceState）的savedInstanceState中提取该信息，您可以看到在创建活动时检查了哪些
例如，
@Override
protected void onSaveInstanceStat(Bundle b){
b.putBoolean("een",een.isChecked());
b.putBoolean("v52",v52.isChecked());
b.putBoolean("v53",v53.isChecked());
// ... etc
}
@Override
protected void onCreate (Bundle savedInstanceState){
// everything you have in your onCreate implementation
een.setChecked(b.getBoolean("een"));
v52.setChecked(b.getBoolean("v52"));
v53.setChecked(b.getBoolean("v53"));
// ... etc
}
重要提示：无法保证将调用'onSaveInstanceState'。因此，如果保存ui状态是为了方便用户而不是对功能至关重要，那么只能使用它。如果您不在他们的设备上保存数据，即使用SharedPreference，用户会更高兴。
答案 2 :(得分：1)
如果你想跨会话保存简单数据，请看一下这里的文档：http://developer.android.com/guide/topics/data/data-storage.html特别是共享首选项布尔存储可以解决这个问题。
在恢复时，您应该从共享首选项中获取值，并使用它们设置复选框。暂停时，您应该从复选框中获取值并将它们放入共享的首选项。
在查看HeloViews教程时，我也遇到了这个http://developer.android.com/reference/android/preference/CheckBoxPreference.html。
只是阅读一下，如果我有时间的话，可能会给你一些代码示例。 希望这会有所帮助。
答案 3 :(得分：1)
查看此链接 http://examples.javacodegeeks.com/android/core/content/android-sharedpreferences-example/
你将不得不玩一点点，只有这样才能学习它。 这对我有帮助