Android SeekBar程序化
我正在以编程方式创建一个SeekBar,如下所示:Android SeekBar程序化,android,seekbar,Android,Seekbar,我正在以编程方式创建一个SeekBar,如下所示: SeekBar seekBar = new SeekBar(this); seekBar.setMax(15); seekBar.setIndeterminate(true); seekBar.setMinimumWidth(200); ShapeDrawable thumb = new ShapeDrawable(new OvalShape()); thumb.getPaint().setColor(0x00FF00); thumb.se
SeekBar seekBar = new SeekBar(this);
seekBar.setMax(15);
seekBar.setIndeterminate(true);
seekBar.setMinimumWidth(200);
ShapeDrawable thumb = new ShapeDrawable(new OvalShape());
thumb.getPaint().setColor(0x00FF00);
thumb.setIntrinsicHeight(80);
thumb.setIntrinsicWidth(30);
seekBar.setThumb(thumb);
seekBar.setProgress(1);
但我能看到的只是一个小小的SeekBar有什么问题吗
谢谢尝试取出
seekBar.setUndefinite(真)代码>可能有不希望的效果。请尝试以下代码
import android.app.Activity;
import android.graphics.Color;
import android.graphics.drawable.ShapeDrawable;
import android.graphics.drawable.shapes.OvalShape;
import android.os.Bundle;
import android.view.View;
import android.widget.LinearLayout.LayoutParams;
import android.widget.SeekBar;
import android.widget.SeekBar.OnSeekBarChangeListener;
public class Sample2 extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
SeekBar seekBar = new SeekBar(this);
seekBar.setMax(15);
// seekBar.setIndeterminate(true);
ShapeDrawable thumb = new ShapeDrawable(new OvalShape());
thumb.setIntrinsicHeight(80);
thumb.setIntrinsicWidth(30);
seekBar.setThumb(thumb);
seekBar.setProgress(1);
seekBar.setVisibility(View.VISIBLE);
seekBar.setBackgroundColor(Color.BLUE);
LayoutParams lp = new LayoutParams(200, 50);
seekBar.setLayoutParams(lp);
seekBar.setOnSeekBarChangeListener(new OnSeekBarChangeListener() {
public void onStopTrackingTouch(SeekBar arg0) {
// TODO Auto-generated method stub
System.out.println(".....111.......");
}
public void onStartTrackingTouch(SeekBar arg0) {
// TODO Auto-generated method stub
System.out.println(".....222.......");
}
public void onProgressChanged(SeekBar arg0, int arg1, boolean arg2) {
// TODO Auto-generated method stub
System.out.println(".....333......."+arg1);
}
});
setContentView(seekBar);
}
}
谢谢
Deepakseekbar.setProgressDrawable(getResources().getDrawable(android.R.drawable.progress_水平)怎么样是的。我尝试过给值400,但宽度没有改变。我也尝试过LayoutParams.fill\u父级。这也不起作用。可能是视图层次结构的问题。您要将此控件添加到哪个父级?如果父级设置为WRAP\u内容,则您会看到这种行为。我正在将其添加到线性布局中。但我没有设置任何布局参数。现在,在你建议的更改之后,我可以看到400宽的空间,但seekbar不可见。我刚刚让它工作正常。我正在用正确的代码编辑我的问题。我可以看到seekbar,但我无法搜索它。嗨,斯通,现在检查我的代码。我已经添加了侦听器以搜索栏。现在,你可以搜索seekbarSeekBar,请参见kBar=new SeekBar(this);SeekBar.setMax(15);ShapeDrawable thumb=new ShapeDrawable(new OvalShape());thumb.setIntrinsicHeight(100);thumb.setIntrinsicWidth(40);SeekBar.setThumb(thumb);SeekBar.setProgress(1);SeekBar.setBackgroundColor(Color.BLUE);LayoutParams lp=新的LayoutParams(400,20);seekBar.setLayoutParams(lp);我如何更改已前进的seekBar的颜色。例如,已前进的seekBar的颜色是绿色,而未前进的部分是蓝色。你明白我想说的吗?看到了吗