Android SharedReferences不保存复选框状态

我正在使用SharedReferences开发任务列表应用程序。但它不会保存复选框状态。我想在用户单击复选框时保存。用户退出应用程序并再次看到它已更新状态后。如何保存复选框状态？ 这是我的代码（已修复并正在运行）

---

您需要更新

SharedReferencesEvery

time

CheckBox

check status is changed（检查状态已更改）中的值。 在

setOnCheckedChangeListener

中删除此行

Settings.this.putBooleanInPreferences（isChecked，“isChecked”）

中的注释

因此，您的听众将如下所示：

cb1.setOnCheckedChangeListener(new OnCheckedChangeListener() {

            @Override
            public void onCheckedChanged(CompoundButton view, boolean isChecked) {
                Log.i("boolean", "" + isChecked);

                putBooleanInPreferences(isChecked,"isChecked");
            }
        });

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希望这有帮助。

试试这种方法，希望这能帮助你解决问题。

public class TaskList extends Activity {

    private CheckBox cb1;
    private CheckBox cb2;
    private CheckBox cb3;
    private CheckBox cb4;
    private SharedPreferences sharedPreferences;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        setContentView(R.layout.activity_tasks);
        super.onCreate(savedInstanceState);
        cb1 = (CheckBox) findViewById(R.id.checkBox1);
        cb2 = (CheckBox) findViewById(R.id.checkBox2);
        cb3 = (CheckBox) findViewById(R.id.checkBox3);
        cb4 = (CheckBox) findViewById(R.id.checkBox4);

        sharedPreferences = getSharedPreferences(getString(R.string.app_name), MODE_PRIVATE);

        cb1.setChecked(sharedPreferences.getBoolean("cb1",false));
        cb2.setChecked(sharedPreferences.getBoolean("cb2",false));
        cb3.setChecked(sharedPreferences.getBoolean("cb3",false));
        cb4.setChecked(sharedPreferences.getBoolean("cb4",false));
        cb1.setOnCheckedChangeListener(new OnCheckedChangeListener() {

            @Override
            public void onCheckedChanged(CompoundButton view, boolean isChecked) {
                SharedPreferences.Editor editor = sharedPreferences.edit();
                editor.putBoolean("cb1", isChecked);
                editor.commit();
            }
        });
        cb2.setOnCheckedChangeListener(new OnCheckedChangeListener() {

            @Override
            public void onCheckedChanged(CompoundButton view, boolean isChecked) {
                SharedPreferences.Editor editor = sharedPreferences.edit();
                editor.putBoolean("cb2", isChecked);
                editor.commit();
            }
        });
        cb3.setOnCheckedChangeListener(new OnCheckedChangeListener() {

            @Override
            public void onCheckedChanged(CompoundButton view, boolean isChecked) {
                SharedPreferences.Editor editor = sharedPreferences.edit();
                editor.putBoolean("cb3", isChecked);
                editor.commit();
            }
        });
        cb4.setOnCheckedChangeListener(new OnCheckedChangeListener() {

            @Override
            public void onCheckedChanged(CompoundButton view, boolean isChecked) {
                SharedPreferences.Editor editor = sharedPreferences.edit();
                editor.putBoolean("cb4", isChecked);
                editor.commit();
            }
        });

    }
}

---

我知道您只想实现CB1的这种行为，为什么保存pref的行被注释掉了，为什么它引用未知类

设置

？是的，我只想cb1@popovitsj是的，我有块设置行。你的回答也很有帮助。你只需晚一点回答。谢谢你的帮助。

public class TaskList extends Activity {

    private CheckBox cb1;
    private CheckBox cb2;
    private CheckBox cb3;
    private CheckBox cb4;
    private SharedPreferences sharedPreferences;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        setContentView(R.layout.activity_tasks);
        super.onCreate(savedInstanceState);
        cb1 = (CheckBox) findViewById(R.id.checkBox1);
        cb2 = (CheckBox) findViewById(R.id.checkBox2);
        cb3 = (CheckBox) findViewById(R.id.checkBox3);
        cb4 = (CheckBox) findViewById(R.id.checkBox4);

        sharedPreferences = getSharedPreferences(getString(R.string.app_name), MODE_PRIVATE);

        cb1.setChecked(sharedPreferences.getBoolean("cb1",false));
        cb2.setChecked(sharedPreferences.getBoolean("cb2",false));
        cb3.setChecked(sharedPreferences.getBoolean("cb3",false));
        cb4.setChecked(sharedPreferences.getBoolean("cb4",false));
        cb1.setOnCheckedChangeListener(new OnCheckedChangeListener() {

            @Override
            public void onCheckedChanged(CompoundButton view, boolean isChecked) {
                SharedPreferences.Editor editor = sharedPreferences.edit();
                editor.putBoolean("cb1", isChecked);
                editor.commit();
            }
        });
        cb2.setOnCheckedChangeListener(new OnCheckedChangeListener() {

            @Override
            public void onCheckedChanged(CompoundButton view, boolean isChecked) {
                SharedPreferences.Editor editor = sharedPreferences.edit();
                editor.putBoolean("cb2", isChecked);
                editor.commit();
            }
        });
        cb3.setOnCheckedChangeListener(new OnCheckedChangeListener() {

            @Override
            public void onCheckedChanged(CompoundButton view, boolean isChecked) {
                SharedPreferences.Editor editor = sharedPreferences.edit();
                editor.putBoolean("cb3", isChecked);
                editor.commit();
            }
        });
        cb4.setOnCheckedChangeListener(new OnCheckedChangeListener() {

            @Override
            public void onCheckedChanged(CompoundButton view, boolean isChecked) {
                SharedPreferences.Editor editor = sharedPreferences.edit();
                editor.putBoolean("cb4", isChecked);
                editor.commit();
            }
        });

    }
}