androidswitch設置_android studio switch控制項怎麼使用

Ⅰ android中switch控制項怎麼控制圖片的顯示隱藏

Android中自帶的Switch控制項在很多時候總覺得和整體系統風格不符，很多時候，自定義Switch是一種方法。
但其實不用這么麻煩，安卓自帶的Switch通過修改一些屬性，也可以達到和自定義Switch差不多的一個效果。
個人感覺，Switch的屬性設置和其他控制項還是有挺大區別的。
實現方式：
底部滑動條，在開關打開狀態為綠色，開關關閉狀態為灰色
在 res/drawable 文件夾下面，寫兩個滑動條的底圖，通過一個選擇器selector進行控制。

Ⅱ android SwitchButton 和CheckBox 怎樣設置不可點擊，Clickable無效

在線程還在進行時設置按鈕不可點擊setClickable(false)；
getState()返回該線程的狀態；
isAlive()測試線程是否處於活動狀態；
view都是setClickable(false); 表示不可點擊的；
當然你還可以直接注冊一個Touche事件，然後在onTouche里return true;

Ⅲ 安卓switch按鈕圖標縮小怎麼設置

按鈕圖標，可以使用ImageView 或者ImageButton. 對應三張圖片的話，就用三張不同的圖片代表就成了。然後實現它們各自的OnClickListener。

Ⅳ android switch控制項的注冊監聽控制

你一定看錯了，一個OnClickListener只會對一個view有效，不存在和父控制項沖突問題。如果有問題你可以設置setOnClickListener（new
OnClickListener(){
public
void
click(View
v){
log.d("------",
v.getId());
}
}）;
給view設置上id,看看是誰

Ⅳ android開發中switch在切換開/關狀態時，先彈出一個dialog（確認/取消）以讓用戶確認是否切換開/關狀態

要實現這種邏輯,方式實在太多了,最簡單的就是switch注冊點擊事件
(不叫你注冊onCheckedChanged事件是因為你設置setChecked的時候,又會觸發onCheckedChanged)
然後在方法里先彈出一個alertDialog
確定後設置switch.setChecked(true/false)

Ⅵ android 怎樣在switch裡面設置簡訊倒計時

1我們首先需要在輸入框中輸入一個秒數，比如：12，然後獲取輸入框中的值，顯示在一個TextView中；
2點擊「開始倒計時」按鈕，每隔一秒鍾，秒數減1，然後顯示在TextView中；
3點擊「停止倒計時」按鈕，計時器停止運行，當再次點擊「開始倒計時」按鈕，計時器繼續運行。

Ⅶ android 自定義switch樣式

修改後的MySwitch控制項介面基本與原Switch控制項一致，並且除了可支持所有SDK外，增加了2項小功能：
1. 支持用Track背景圖片的方式代替Texton Textoff等文字方式表現開關狀態
2.支持調整控制Switch的高度
下面貼出Switch修改的關鍵代碼：

/**
* 
* modified from android SDK 14(4.0) android.widget.Switch.
* 
* new feature: 
* <ol>
* <li>support SDK 1 or higher. </li>
* <li>you can use track drawable instead of text to display the changes of off-on state!</li>
* <li>you can control the Switch minimum height. </li>
* </ol>
* 
*
* @see {@link Switch}
* @author Wison
*/
public class MySwitch extends CompoundButton {
// Support track drawable instead of text
private Drawable mTrackOnDrawable;
private Drawable mTrackOffDrawable;

// Support minimum height
private int mSwitchMinHeight;

/**
* Construct a new Switch with a default style determined by the given theme attribute,
* overriding specific style attributes as requested.
*
* @param context The Context that will determine this widget's theming.
* @param attrs Specification of attributes that should deviate from the default styling.
* @param defStyle An attribute ID within the active theme containing a reference to the
* default style for this widget. e.g. android.R.attr.switchStyle.
*/
public MySwitch(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);

mTextPaint = new TextPaint(Paint.ANTI_ALIAS_FLAG);
Resources res = getResources();
mTextPaint.density = res.getDisplayMetrics().density;
//float scaledDensity = res.getDisplayMetrics().scaledDensity;
//mTextPaint.setCompatibilityScaling(res.getCompatibilityInfo().applicationScale);

TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.Switch, defStyle, 0);

// off-on 模式：圖片模式或文字模式，圖片模式是用Track背景圖片表示off-on的狀態，文字模式是用文字來表示off-on狀態。
mTrackOnDrawable = a.getDrawable(R.styleable.Switch_trackOn);
mTrackOffDrawable = a.getDrawable(R.styleable.Switch_trackOff);
if (checkTrackOffOnDrawable()) {
// 如果設定圖片模式，則默認顯示off狀態
mTrackDrawable = mTrackOffDrawable;
} else {
mTrackDrawable = a.getDrawable(R.styleable.Switch_track);
}

mThumbDrawable = a.getDrawable(R.styleable.Switch_thumb);
mTextOn = a.getText(R.styleable.Switch_textOn);
mTextOff = a.getText(R.styleable.Switch_textOff);
mThumbTextPadding = a.getDimensionPixelSize(R.styleable.Switch_thumbTextPadding, 0);
mSwitchMinWidth = a.getDimensionPixelSize(R.styleable.Switch_switchMinWidth, 0);

mSwitchMinHeight = a.getDimensionPixelSize(R.styleable.Switch_switchMinHeight, 0);

mSwitchPadding = a.getDimensionPixelSize(R.styleable.Switch_switchPadding, 0);

int appearance = a.getResourceId(R.styleable.Switch_switchTextAppearance, 0);
if (appearance != 0) {
setSwitchTextAppearance(context, appearance);
}
a.recycle();

ViewConfiguration config = ViewConfiguration.get(context);
mTouchSlop = config.getScaledTouchSlop();
mMinFlingVelocity = config.getScaledMinimumFlingVelocity();

// Refresh display with current params
refreshDrawableState();
setChecked(isChecked());
}

private boolean checkTrackOffOnDrawable() {
return mTrackOnDrawable != null && mTrackOffDrawable != null;
}

@SuppressLint("NewApi")
@Override
public void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
if (mOnLayout == null) {
mOnLayout = makeLayout(mTextOn);
}
if (mOffLayout == null) {
mOffLayout = makeLayout(mTextOff);
}
mTrackDrawable.getPadding(mTempRect);
final int maxTextWidth = Math.max(mOnLayout.getWidth(), mOffLayout.getWidth());
final int switchWidth = Math.max(mSwitchMinWidth,
maxTextWidth * 2 + mThumbTextPadding * 4 + mTempRect.left + mTempRect.right);

// final int switchHeight = mTrackDrawable.getIntrinsicHeight();
int switchHeight;
if (mSwitchMinHeight <= 0) {
switchHeight = mTrackDrawable.getIntrinsicHeight();
} else {
switchHeight = Math.max(mSwitchMinHeight, mTempRect.top + mTempRect.bottom);
}
mThumbWidth = maxTextWidth + mThumbTextPadding * 2;

mSwitchWidth = switchWidth;
mSwitchHeight = switchHeight;

super.onMeasure(widthMeasureSpec, heightMeasureSpec);
final int measuredHeight = getMeasuredHeight();
if (measuredHeight < switchHeight) {
if (Build.VERSION.SDK_INT >= 11) {
setMeasuredDimension(getMeasuredWidthAndState(), switchHeight);
} else {
setMeasuredDimension(getMeasuredWidth(), switchHeight);
}
}
}
@Override
public void setChecked(boolean checked) {
if (checkTrackOffOnDrawable()) {
mTrackDrawable = checked ? mTrackOnDrawable : mTrackOffDrawable;
refreshDrawableState();
}
super.setChecked(checked);
mThumbPosition = checked ? getThumbScrollRange() : 0;
invalidate();
}
@Override
protected void onDraw(Canvas canvas) {
super.onDraw(canvas);
// Draw the switch
int switchLeft = mSwitchLeft;
int switchTop = mSwitchTop;
int switchRight = mSwitchRight;
int switchBottom = mSwitchBottom;

if (checkTrackOffOnDrawable()) {
mTrackDrawable = getTargetCheckedState() ? mTrackOnDrawable : mTrackOffDrawable;
refreshDrawableState();
}

mTrackDrawable.setBounds(switchLeft, switchTop, switchRight, switchBottom);
mTrackDrawable.draw(canvas);
canvas.save()
mTrackDrawable.getPadding(mTempRect);
int switchInnerLeft = switchLeft + mTempRect.left;
int switchInnerTop = switchTop + mTempRect.top;
int switchInnerRight = switchRight - mTempRect.right;
int switchInnerBottom = switchBottom - mTempRect.bottom;
canvas.clipRect(switchInnerLeft, switchTop, switchInnerRight, switchBottom);

mThumbDrawable.getPadding(mTempRect);
final int thumbPos = (int) (mThumbPosition + 0.5f);
int thumbLeft = switchInnerLeft - mTempRect.left + thumbPos;
int thumbRight = switchInnerLeft + thumbPos + mThumbWidth + mTempRect.right;

mThumbDrawable.setBounds(thumbLeft, switchTop, thumbRight, switchBottom);
mThumbDrawable.draw(canvas);

// mTextColors should not be null, but just in case
if (mTextColors != null) {
mTextPaint.setColor(mTextColors.getColorForState(getDrawableState(),
mTextColors.getDefaultColor()));
}
mTextPaint.drawableState = getDrawableState();

Layout switchText = getTargetCheckedState() ? mOnLayout : mOffLayout;

if (switchText != null) {
canvas.translate((thumbLeft + thumbRight) / 2 - switchText.getWidth() / 2,
(switchInnerTop + switchInnerBottom) / 2 - switchText.getHeight() / 2);
switchText.draw(canvas);
}
canvas.restore();
}
}

下面是關鍵屬性聲明：
<declare-styleable name="Switch">


<attr name="trackOn" format="reference" />

<attr name="trackOff" format="reference" />

<attr name="switchMinHeight" format="dimension" />


<attr name="thumb" format="reference" />

<attr name="track" format="reference" />

<attr name="textOn" format="string" />

<attr name="textOff" format="string" />

<attr name="thumbTextPadding" format="dimension" />

<attr name="switchTextAppearance" format="reference" />

<attr name="switchMinWidth" format="dimension" />

<attr name="switchPadding" format="dimension" />
</declare-styleable>

Ⅷ android studio switch控制項怎麼使用

adroid studio switch控制項的用法如下：
Switch sc=(Switch)findViewById(R.id.switch1);
sc.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton compoundButton, boolean b) {
if (b){
Toast.makeText(getApplicationContext(),"on",Toast.LENGTH_SHORT).show();
}else {
Toast.makeText(getApplicationContext(),"off",Toast.LENGTH_SHORT).show();
}
}
});

Ⅸ AndroidUI控制項switch使用方法

首先添加控制項：

<Switch

android:id="@+id/sw_sfktmmzf"

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:layout_marginRight="15dp"

android:showText="false"

android:switchMinWidth="50dp"

android:thumb="@drawable/thumb"

android:track="@drawable/track" />

以下是該控制項的常用屬性：

textOn：控制項打開時顯示的文字

textOff：控制項關閉時顯示的文字

thumb：控制項開關的圖片（設置小圓圈顏色）

track：控制項開關的軌跡圖片（設置小圓圈背景顏色）

typeface：設置字體類型

switchMinWidth：開關最小寬度

switchPadding：設置開關與文字的空白距離

switchTextAppearance：設置文本的風格

checked：設置初始選中狀態

splitTrack：是否設置一個間隙，讓滑塊與底部圖片分隔（API 21及以上）

showText：設置是否顯示開關上的文字（API 21及以上）

創建北京控制文件在drawable文件下

1、thumb.xml

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

<selector xmlns:android="http://schemas.android.com/apk/res/android">

<item android:drawable="@drawable/green_thumb" android:state_checked="true" />

<item android:drawable="@drawable/gray_thumb" />

顏色文件：

green_thumb.xml

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

<shape xmlns:android="http://schemas.android.com/apk/res/android"

android:shape="rectangle" >



<size android:height="@dimen/switch_height" android:width="@dimen/switch_height"/>



<corners android:radius="20dp"/>



<gradient

android:endColor="#eeeeee"

android:startColor="#eeeeee" />

<stroke android:width="1dp"

android:color="@color/home_text1"/>

</shape>

gray_thumb.xml

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

<shape xmlns:android="http://schemas.android.com/apk/res/android"

android:shape="rectangle" >



<size android:height="@dimen/switch_height" android:width="@dimen/switch_height"/>



<corners android:radius="20dp"/>



<gradient

android:endColor="#eeeeee"

android:startColor="#eeeeee" />

<stroke android:width="1dp"

android:color="@color/text_color03"/>

</shape>

2、track.xml

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

<selector xmlns:android="http://schemas.android.com/apk/res/android">

<item android:drawable="@drawable/green_track" android:state_checked="true" />

<item android:drawable="@drawable/gray_track" />

</selector>

顏色文件：

green_track.xml

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

<shape xmlns:android="http://schemas.android.com/apk/res/android"

android:shape="rectangle">



<size android:height="@dimen/switch_height"/>



<corners android:radius="15dp"/>



<gradient

android:endColor="@color/home_text1"

android:startColor="@color/home_text1" />

</shape>

gray_track.xml

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

<shape xmlns:android="http://schemas.android.com/apk/res/android"

android:shape="rectangle">



<size android:height="@dimen/switch_height" />



<corners android:radius="15dp" />



<gradient

android:endColor="@color/text_color03"

android:startColor="@color/text_color03" />

</shape>

switch 控制項監聽事件：

aSwitch.setOnCheckedChangeListener(newCompoundButton.OnCheckedChangeListener() {

 @Override

 public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {

 //控制開關字體顏色

 if(isChecked) {

 //打開

 }else{

 //關閉

 }

 }

 });

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