我正在使用播放器,我想使用Vertical Seekbar来控制音量。任何人都可以告诉我如何垂直对齐搜索栏,如果你有一些代码就会很棒。
答案 0 :(得分:2)
这是一个垂直对齐搜索栏的好代码:
Vertical Seekbar
答案 1 :(得分:1)
我通过覆盖onDraw方法并将其翻转90度来制作垂直SeekBar
<强> VerticalSeekBar 强>
import android.content.Context;
import android.graphics.Canvas;
import android.util.AttributeSet;
import android.view.MotionEvent;
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());
}
/*@Override
public synchronized void setProgress(int progress) // it is necessary for calling setProgress on click of a button
{
super.setProgress(progress);
onSizeChanged(getWidth(), getHeight(), 0, 0);
}*/
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;
}
}
在XML布局中使用它:
<yourPackage.name.VerticalSeekBar
android:id="@+id/seekBar1"
android:layout_width="wrap_content"
android:layout_height="200dp"
/>
对于API 11及更高版本,可以使用搜索栏的XML
ttributes(android:rotation="270")
进行垂直效果。
<SeekBar
android:id="@+id/seekBar1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:rotation="270"/>
答案 2 :(得分:0)
将这些行添加到build.gradle。
dependencies {
compile 'com.h6ah4i.android.widget.verticalseekbar:verticalseekbar:0.7.2'
}
布局XML
<!-- This library requires pair of the VerticalSeekBar and VerticalSeekBarWrapper classes -->
<com.h6ah4i.android.widget.verticalseekbar.VerticalSeekBarWrapper
android:layout_width="wrap_content"
android:layout_height="150dp">
<com.h6ah4i.android.widget.verticalseekbar.VerticalSeekBar
android:id="@+id/mySeekBar"
android:layout_width="0dp"
android:layout_height="0dp"
android:max="100"
android:progress="0"
android:splitTrack="false"
app:seekBarRotation="CW90" /> <!-- Rotation: CW90 or CW270 -->
</com.h6ah4i.android.widget.verticalseekbar.VerticalSeekBarWrapper>
Java代码
public class TestVerticalSeekbar extends AppCompatActivity {
private SeekBar mseekbar = null;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_test_vertical_seekbar);
mseekbar = (SeekBar) findViewById(R.id.mySeekBar);
mseekbar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
int progressChanged = 0;
public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
progressChanged = progress;
}
public void onStartTrackingTouch(SeekBar seekBar) {
// TODO Auto-generated method stub
}
public void onStopTrackingTouch(SeekBar seekBar) {
Toast.makeText(getApplicationContext(), "seek bar progress:" + progressChanged,
Toast.LENGTH_SHORT).show();
}
});
}
}