Question

在我的应用程序中，我有7个按钮，当我点击它时，我正在尝试更改按钮边框颜色。默认情况下，按钮颜色为灰色，点击后我想更改为其他颜色。

gray_button.xml

nolock

green_button.xml

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item>
        <shape android:shape="oval">
            <stroke android:width="3dp" android:color="#646464" />
            <solid android:color="@color/white" />
            <size android:width="37dp" android:height="40dp" />
        </shape>
    </item>
</selector>

CreateAlarm.java

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item>
        <shape android:shape="oval">
            <stroke android:width="3dp" android:color="@color/green" />
            <solid android:color="@color/white" />
            <size android:width="37dp" android:height="40dp" />
        </shape>
    </item>
</selector>

更新：

CreateAlarm.java

    public class CreateAlarm extends Activity {

    private TimePicker mTimePicker;
    private EditText mTitle;
    private TextView mCancel, mRepeat,mSave;
    private String mselectedTime,mAlarmName,mSnoozeEnabled,mFlashLightEnabled,mVibrationEnabled,mVolumeIncreaseEnabled,mSunDay,mMonDay,mTueDay,mWedDay,mThuDay,mFriDay,mSatDay;
    private com.suke.widget.SwitchButton mSnooze,mFlashLight,mVibration,mVolumeIncrease;
    public String mSelectedDays;
    @Override
    protected void onCreate(Bundle savedInstanceState) {


        mFlashLight.setOnCheckedChangeListener(new SwitchButton.OnCheckedChangeListener() {
            @Override
            public void onCheckedChanged(SwitchButton view, boolean isChecked) {
                if(mFlashLight.isChecked()== true){
                    mFlashLightEnabled = "Enabled";
                }
            }
        });

        mVibration.setOnCheckedChangeListener(new SwitchButton.OnCheckedChangeListener() {
            @Override
            public void onCheckedChanged(SwitchButton view, boolean isChecked) {
                if(mVibration.isChecked()== true){
                    mVibrationEnabled = "Enabled";
                }
            }
        });

        mVolumeIncrease.setOnCheckedChangeListener(new SwitchButton.OnCheckedChangeListener() {

                if(mSelectedDays.contains("Thu")){
                    mThuDay = "Thu";
                }else{
                    mThuDay = "Null";
                }
                if(mSelectedDays.contains("Fri")){
                    mFriDay = "Fri";
                }else{
                    mFriDay = "Null";
                }
                if(mSelectedDays.contains("Sat")){
                    mSatDay = "Sat";
                }else{
                    mSatDay = "Null";
                }
//SwitchButton isChecked Validation
                if (mSnoozeEnabled == null){
                    mSnoozeEnabled = "Disabled";
                }



                Intent intent = new Intent(CreateAlarm.this, AlarmActivity.class);


    @Override
    public void onStart() {

        super.onStart();
        if (!EventBus.getDefault().isRegistered(this)) EventBus.getDefault().register(this);
    }

    @Override
    public void onStop() {
        super.onStop();
        EventBus.getDefault().unregister(this);
    }

    @Override
    public void onPause() {
        super.onPause();
        mRepeat.setText("");
    }

    @Subscribe(threadMode = ThreadMode.MAIN_ORDERED)
    public void onEventMain(AlarmEvent alarmEvent) {

        if (alarmEvent.getSelectedEventType() == AlarmEvent.eventTypes.updateSelectedDay) {
            mRepeat.setText(alarmEvent.getSelectedDays());
        }

    }
    @Override
    public void onBackPressed() {
        super.onBackPressed();

        finish();
    }
}

加载此活动后，我收到了之前活动的数据，基于此我想设置启用/禁用按钮，并且还要相应地设置TextView文本（mRepeat）文本。

Answer 1

您的错误是AppCompatButton。您应该只展开Button。

您应该研究EventBus：https://github.com/greenrobot/EventBus。提供通知活动或碎片任何东西。

请再试一次：

public class CustomBorderButton extends Button {

    private static HashSet<Integer> selectedDays = new HashSet<>();

    public CustomBorderButton(Context context) {
        this(context, null);
    }

    public CustomBorderButton(Context context, AttributeSet attrs) {
        this(context, attrs, 0);
    }

    public CustomBorderButton(Context context, AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);

        setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View view) {

                int id = view.getId();
                boolean isSelected = selectedDays.contains(id);

                Drawable bgDrawable;

                if (isSelected) {
                    bgDrawable = getBackgroundDrawable(R.drawable.gray_button);
                    selectedDays.remove(id);
                } else {
                    bgDrawable = getBackgroundDrawable(R.drawable.green_button);
                    selectedDays.add(id);
                }

                setBackground(bgDrawable);
                setSelectedDays();
            }
        });

    }

    private void setSelectedDays() {

        StringBuilder repeatDays = new StringBuilder();
        TreeMap<Integer, String> mAlarmDays = new TreeMap<>();

        if (selectedDays.size() == 0) {
            repeatDays = new StringBuilder("Never");
        } else {

            for (Integer selectedDayId : selectedDays) {

                switch (selectedDayId) {

                    case R.id.mbtn_Sun:

                        mAlarmDays.put(0, "Sun");
                        break;

                    case R.id.mbtn_Mon:
                        mAlarmDays.put(1, "Mon");
                        break;

                    case R.id.mbtn_Tue:
                        mAlarmDays.put(2, "Tue");
                        break;

                    case R.id.mbtn_Wed:
                        mAlarmDays.put(3, "Wed");
                        break;

                    case R.id.mbtn_Thu:
                        mAlarmDays.put(4, "Thu");
                        break;

                    case R.id.mbtn_Fri:
                        mAlarmDays.put(5, "Fri");
                        break;

                    case R.id.mbtn_Sat:
                        mAlarmDays.put(6, "Sat");
                        break;
                }
            }//for

            for (String day : mAlarmDays.values()) {
                repeatDays.append(day).append(" ");
            }

        }

        EventBus.getDefault().post(new AlarmEvent().updateSelectedDay(AlarmEvent.eventTypes.updateSelectedDay, repeatDays.toString().trim()));
    }

    public Drawable getBackgroundDrawable(int resourceId) {

        Drawable backgroundDrawable;

        if (android.os.Build.VERSION.SDK_INT >= 21) {
            backgroundDrawable = getResources().getDrawable(resourceId, getContext().getTheme());
        } else {
            backgroundDrawable = getResources().getDrawable(resourceId);
        }

        return backgroundDrawable;
    }
}

CreateAlarm.java

    public class CreateAlarm extends Activity {

    private TimePicker mTimePicker;
    private TextView mCancel, mRepeat;
    private ImageView mRepeatIcon;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.create_alarm_layout);
        Utils.darkenStatusBar(this, R.color.StatusbarColor);

        mTimePicker = (TimePicker) findViewById(R.id.mTimePicker);
        mCancel = (TextView) findViewById(R.id.mCancel);
        mRepeat = (TextView) findViewById(R.id.mRepeat);

        int hours = mTimePicker.getCurrentHour();
        mCancel.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                finish();
            }
        });

    }

    @Override
    public void onStart() {

        super.onStart();
        if (!EventBus.getDefault().isRegistered(this)) EventBus.getDefault().register(this);
    }

    @Override
    public void onStop() {
        super.onStop();
        EventBus.getDefault().unregister(this);
    }

    @Override
    public void onPause() {
        super.onPause();
        mRepeat.setText("");
    }

    @Subscribe(threadMode = ThreadMode.MAIN_ORDERED)
    public void onEventMain(AlarmEvent alarmEvent) {

        if (alarmEvent.getSelectedEventType() == AlarmEvent.eventTypes.updateSelectedDay) {
            mRepeat.setText(alarmEvent.getSelectedDays());
        }

    }

}

AlarmEvent：

public class AlarmEvent {

    private eventTypes selectedEventType;
    private String selectedDays = "";

    public String getSelectedDays() {
        return selectedDays;
    }

    public eventTypes getSelectedEventType() {
        return selectedEventType;
    }

    public enum eventTypes {
        updateSelectedDay
    }

    public AlarmEvent updateSelectedDay(eventTypes newEvent, String selectedDays) {

        AlarmEvent alarmEvent = new AlarmEvent();
        alarmEvent.selectedEventType = newEvent;
        alarmEvent.selectedDays = selectedDays;

        return alarmEvent;
    }
}

＆GT;回复你的评论：

CreateAlarm

clickSave(){

  Intent intent = new Intent(CreateAlarm.this, AlarmActivity.class);
  finish();
  startActivity(intent);
}

   @Override
   public void onBackPressed() {
   super.onBackPressed();

   finish();
    }

AlarmActivity

@Override
public void onBackPressed() {
    super.onBackPressed();

    finish();
}

Answer 2

您可以在res / drawable中创建一个选择器

<?xml version="1.0" encoding="utf-8"?>

<item android:state_activated="true" android:drawable="@drawable/gray_button"></item>
<item android:state_activated="false" android:drawable="@drawable/green_button"></item>

然后在您的自定义BorderButton中，而不是更改背景，只需设置按钮的激活状态

if (isSelected) {
                setActivated(false);
                selectedDays.remove(id);
            } else {
                setActivated(true);
                selectedDays.add(id);
            }

单击时不会更改按钮边框颜色

2 个答案:

＆GT;回复你的评论：