Android - SwitchButton開關按鈕
阿新 • • 發佈:2018-12-18
工具類 :
package utils;
import android.content.Context;
import android.content.res.TypedArray;
import android.os.Build;
import android.util.AttributeSet;
import android.view.LayoutInflater;
import android.view.MotionEvent;
import android.view.View;
import android.widget.RelativeLayout;
public class SwitchButtonView extends RelativeLayout {
public static final int OPEN = 1;
public static final int CLOSE = 0;
private int defaultStatus;
private int currentStatus;
private OnSwitchListener onSwitchListener;
private TypedArray typedArray;
private RelativeLayout relativeLayout;
private View view;
public SwitchButtonView(Context context) {
super(context);
}
public SwitchButtonView(Context context, AttributeSet attrs) {
super(context, attrs);
LayoutInflater.from(context).inflate(R.layout.layout_switch, this);
typedArray = context. obtainStyledAttributes(attrs, R.styleable.SwitchButton);
initView();
init();
}
/**
* 初始化控制元件
*/
private void initView() {
relativeLayout = findViewById(R.id.relative_layout_bg);
view = findViewById(R.id.view_scroll);
}
/**
* 初始化操作
*/
private void init() {
defaultStatus = typedArray.getInt(R.styleable.SwitchButton_defaultStatus, 1);
if (defaultStatus == 0) {
relativeLayout.setBackgroundResource(R.drawable.bg_switch_bottom);
view.setBackgroundResource(R.drawable.bg_switch_top);
setViewLocation(view, RelativeLayout.ALIGN_PARENT_LEFT);
currentStatus = CLOSE;
} else if (defaultStatus == 1) {
relativeLayout.setBackgroundResource(R.drawable.bg_switch_bottom_open);
view.setBackgroundResource(R.drawable.bg_switch_top_open);
setViewLocation(view, RelativeLayout.ALIGN_PARENT_RIGHT);
currentStatus = OPEN;
}
}
private void setViewLocation(View view, int location) {
LayoutParams layoutParams = (LayoutParams) view.getLayoutParams();
if (location == RelativeLayout.ALIGN_PARENT_LEFT) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) {
layoutParams.removeRule(RelativeLayout.ALIGN_PARENT_RIGHT);
}
} else if (location == RelativeLayout.ALIGN_PARENT_RIGHT) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) {
layoutParams.removeRule(RelativeLayout.ALIGN_PARENT_LEFT);
}
}
layoutParams.addRule(location);
view.setLayoutParams(layoutParams);
}
/**
* 獲取當前的狀態
*/
public int getCurrentStatus() {
return currentStatus;
}
/**
* 設定狀態變化監聽
*/
public void setOnSwitchListener(OnSwitchListener onSwitchListener) {
this.onSwitchListener = onSwitchListener;
}
/**
* 關閉按鈕
*/
public void closeButton() {
relativeLayout.setBackgroundResource(R.drawable.bg_switch_bottom);
view.setBackgroundResource(R.drawable.bg_switch_top);
setViewLocation(view, RelativeLayout.ALIGN_PARENT_LEFT);
currentStatus = CLOSE;
}
/**
* 開啟按鈕
*/
public void openButton() {
relativeLayout.setBackgroundResource(R.drawable.bg_switch_bottom_open);
view.setBackgroundResource(R.drawable.bg_switch_top_open);
setViewLocation(view, RelativeLayout.ALIGN_PARENT_RIGHT);
currentStatus = OPEN;
}
/**
* 改變狀態
*/
private void changeStatus() {
if (currentStatus == OPEN) {
closeButton();
} else if (currentStatus == CLOSE) {
openButton();
}
if (onSwitchListener != null) {
onSwitchListener.onSwitchChange(); //呼叫監聽改變時候處理邏輯的函式
}
}
/**
* 觸控事件
* 觸控一下,改變按鈕的狀態
*/
@Override
public boolean onTouchEvent(MotionEvent event) {
switch (event.getAction()) {
case MotionEvent.ACTION_DOWN:
/**
* 改變狀態
*/
changeStatus();
break;
default:
break;
}
return super.onTouchEvent(event);
}
public interface OnSwitchListener {
void onSwitchChange();
}
}
佈局裡 :
<utils.SwitchButtonView
android:id="@+id/switch_button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_centerVertical="true"
app:defaultStatus="open"/>
Activity中 :
// 開啟 :
switchButton.openButton();
// 關閉 :
switchButton.closeButton();
// 加監聽 :
switchButton.setOnSwitchListener(new SwitchButtonView.OnSwitchListener() {
@Override
public void onSwitchChange() {
LogUtil.e(TAG, "switchButton.getCurrentStatus() --- " + switchButton.getCurrentStatus());
}
});
// 1為開啟, 0為關閉