public class VerticalSeekBar extends SeekBar {
public VerticalSeekBar(Context context) {
super(context);
} public VerticalSeekBar(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
} public VerticalSeekBar(Context context, AttributeSet attrs) {
super(context, attrs);
} protected void onSizeChanged(int w, int h, int oldw, int oldh) {
super.onSizeChanged(h, w, oldh, oldw);
} @Override
protected synchronized void onMeasure(int widthMeasureSpec,
int heightMeasureSpec) {
super.onMeasure(heightMeasureSpec, widthMeasureSpec);
setMeasuredDimension(getMeasuredHeight(), getMeasuredWidth());
} protected void onDraw(Canvas c) {
c.rotate(-90);
c.translate(-getHeight(), 0);
super.onDraw(c);
} @Override
public boolean onTouchEvent(MotionEvent event) {
if (!isEnabled()) {
return false;
}
switch (event.getAction()) {
case MotionEvent.ACTION_DOWN:
case MotionEvent.ACTION_MOVE:
case MotionEvent.ACTION_UP:
setProgress(getMax()
- (int) (getMax() * event.getY() / getHeight()));
onSizeChanged(getWidth(), getHeight(), 0, 0);
break;
case MotionEvent.ACTION_CANCEL:
break;
}
return true;
}
}
自定义如上的垂直SeekBar之后,还要在布局管理器添加,代码如下
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" > <SeekBar
android:id="@+id/seekBar1"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_centerVertical="true"/>
<com.android.VerticalSeekBar>
android:layout_width="wrap_parent"
android:layout_height="wrap_content"
</com.android.VerticalSeekBar>
</RelativeLayout>
为什么显示不鸟了?求大神指点下,谢谢
public VerticalSeekBar(Context context) {
super(context);
} public VerticalSeekBar(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
} public VerticalSeekBar(Context context, AttributeSet attrs) {
super(context, attrs);
} protected void onSizeChanged(int w, int h, int oldw, int oldh) {
super.onSizeChanged(h, w, oldh, oldw);
} @Override
protected synchronized void onMeasure(int widthMeasureSpec,
int heightMeasureSpec) {
super.onMeasure(heightMeasureSpec, widthMeasureSpec);
setMeasuredDimension(getMeasuredHeight(), getMeasuredWidth());
} protected void onDraw(Canvas c) {
c.rotate(-90);
c.translate(-getHeight(), 0);
super.onDraw(c);
} @Override
public boolean onTouchEvent(MotionEvent event) {
if (!isEnabled()) {
return false;
}
switch (event.getAction()) {
case MotionEvent.ACTION_DOWN:
case MotionEvent.ACTION_MOVE:
case MotionEvent.ACTION_UP:
setProgress(getMax()
- (int) (getMax() * event.getY() / getHeight()));
onSizeChanged(getWidth(), getHeight(), 0, 0);
break;
case MotionEvent.ACTION_CANCEL:
break;
}
return true;
}
}
自定义如上的垂直SeekBar之后,还要在布局管理器添加,代码如下
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" > <SeekBar
android:id="@+id/seekBar1"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_centerVertical="true"/>
<com.android.VerticalSeekBar>
android:layout_width="wrap_parent"
android:layout_height="wrap_content"
</com.android.VerticalSeekBar>
</RelativeLayout>
为什么显示不鸟了?求大神指点下,谢谢
解决方案 »
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