我在我的Android应用程序中使用水平进度条,我想改变它的进度颜色(默认为黄色)。我如何使用代码(而不是XML)做到这一点?
当前回答
根据一些建议,你可以指定一个形状和可剪切的颜色,然后设置它。我让它以编程的方式工作。我就是这么做的。
首先确保导入了可绘制库。
进口android.graphics.drawable。*;
然后使用类似于下面的代码;
ProgressBar pg = (ProgressBar)row.findViewById(R.id.progress);
final float[] roundedCorners = new float[] { 5, 5, 5, 5, 5, 5, 5, 5 };
pgDrawable = new ShapeDrawable(new RoundRectShape(roundedCorners, null,null));
String MyColor = "#FF00FF";
pgDrawable.getPaint().setColor(Color.parseColor(MyColor));
ClipDrawable progress = new ClipDrawable(pgDrawable, Gravity.LEFT, ClipDrawable.HORIZONTAL);
pg.setProgressDrawable(progress);
pg.setBackgroundDrawable(getResources().getDrawable(android.R.drawable.progress_horizontal));
pg.setProgress(45);
其他回答
更改水平进度条颜色(kotlin):
fun tintHorizontalProgress(progress: ProgressBar, @ColorInt color: Int = ContextCompat.getColor(progress.context, R.color.colorPrimary)){
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
progress.progressTintList = ColorStateList.valueOf(color)
} else{
val layerDrawable = progress.progressDrawable as? LayerDrawable
val progressDrawable = layerDrawable?.findDrawableByLayerId(android.R.id.progress)
progressDrawable?.setColorFilter(color, PorterDuff.Mode.SRC_ATOP)
}
}
更改不确定的ProgressBar颜色:
fun tintIndeterminateProgress(progress: ProgressBar, @ColorInt color: Int = ContextCompat.getColor(progress.context, R.color.colorPrimary)){
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
progress.indeterminateTintList = ColorStateList.valueOf(color)
} else {
(progress.indeterminateDrawable as? LayerDrawable)?.apply {
if (numberOfLayers >= 2) {
setId(0, android.R.id.progress)
setId(1, android.R.id.secondaryProgress)
val progressDrawable = findDrawableByLayerId(android.R.id.progress).mutate()
progressDrawable.setColorFilter(color, PorterDuff.Mode.SRC_ATOP)
}
}
}
}
它最终正常地着色pre-lollipop progressBars
使用android.support.v4.graphics.drawable.DrawableCompat:
Drawable progressDrawable = progressBar.getIndeterminateDrawable();
if (progressDrawable != null) {
Drawable mutateDrawable = progressDrawable.mutate();
DrawableCompat.setTint(mutateDrawable, primaryColor);
progressBar.setProgressDrawable(mutateDrawable);
}
这招对我很管用:
<ProgressBar
android:indeterminateTint="#d60909"
... />
根据一些建议,你可以指定一个形状和可剪切的颜色,然后设置它。我让它以编程的方式工作。我就是这么做的。
首先确保导入了可绘制库。
进口android.graphics.drawable。*;
然后使用类似于下面的代码;
ProgressBar pg = (ProgressBar)row.findViewById(R.id.progress);
final float[] roundedCorners = new float[] { 5, 5, 5, 5, 5, 5, 5, 5 };
pgDrawable = new ShapeDrawable(new RoundRectShape(roundedCorners, null,null));
String MyColor = "#FF00FF";
pgDrawable.getPaint().setColor(Color.parseColor(MyColor));
ClipDrawable progress = new ClipDrawable(pgDrawable, Gravity.LEFT, ClipDrawable.HORIZONTAL);
pg.setProgressDrawable(progress);
pg.setBackgroundDrawable(getResources().getDrawable(android.R.drawable.progress_horizontal));
pg.setProgress(45);
对于水平风格的ProgressBar,我使用:
import android.widget.ProgressBar;
import android.graphics.drawable.GradientDrawable;
import android.graphics.drawable.ClipDrawable;
import android.view.Gravity;
import android.graphics.drawable.Drawable;
import android.graphics.drawable.LayerDrawable;
public void setColours(ProgressBar progressBar,
int bgCol1, int bgCol2,
int fg1Col1, int fg1Col2, int value1,
int fg2Col1, int fg2Col2, int value2)
{
//If solid colours are required for an element, then set
//that elements Col1 param s the same as its Col2 param
//(eg fg1Col1 == fg1Col2).
//fgGradDirection and/or bgGradDirection could be parameters
//if you require other gradient directions eg LEFT_RIGHT.
GradientDrawable.Orientation fgGradDirection
= GradientDrawable.Orientation.TOP_BOTTOM;
GradientDrawable.Orientation bgGradDirection
= GradientDrawable.Orientation.TOP_BOTTOM;
//Background
GradientDrawable bgGradDrawable = new GradientDrawable(
bgGradDirection, new int[]{bgCol1, bgCol2});
bgGradDrawable.setShape(GradientDrawable.RECTANGLE);
bgGradDrawable.setCornerRadius(5);
ClipDrawable bgclip = new ClipDrawable(
bgGradDrawable, Gravity.LEFT, ClipDrawable.HORIZONTAL);
bgclip.setLevel(10000);
//SecondaryProgress
GradientDrawable fg2GradDrawable = new GradientDrawable(
fgGradDirection, new int[]{fg2Col1, fg2Col2});
fg2GradDrawable.setShape(GradientDrawable.RECTANGLE);
fg2GradDrawable.setCornerRadius(5);
ClipDrawable fg2clip = new ClipDrawable(
fg2GradDrawable, Gravity.LEFT, ClipDrawable.HORIZONTAL);
//Progress
GradientDrawable fg1GradDrawable = new GradientDrawable(
fgGradDirection, new int[]{fg1Col1, fg1Col2});
fg1GradDrawable.setShape(GradientDrawable.RECTANGLE);
fg1GradDrawable.setCornerRadius(5);
ClipDrawable fg1clip = new ClipDrawable(
fg1GradDrawable, Gravity.LEFT, ClipDrawable.HORIZONTAL);
//Setup LayerDrawable and assign to progressBar
Drawable[] progressDrawables = {bgclip, fg2clip, fg1clip};
LayerDrawable progressLayerDrawable = new LayerDrawable(progressDrawables);
progressLayerDrawable.setId(0, android.R.id.background);
progressLayerDrawable.setId(1, android.R.id.secondaryProgress);
progressLayerDrawable.setId(2, android.R.id.progress);
//Copy the existing ProgressDrawable bounds to the new one.
Rect bounds = progressBar.getProgressDrawable().getBounds();
progressBar.setProgressDrawable(progressLayerDrawable);
progressBar.getProgressDrawable().setBounds(bounds);
// setProgress() ignores a change to the same value, so:
if (value1 == 0)
progressBar.setProgress(1);
else
progressBar.setProgress(0);
progressBar.setProgress(value1);
// setSecondaryProgress() ignores a change to the same value, so:
if (value2 == 0)
progressBar.setSecondaryProgress(1);
else
progressBar.setSecondaryProgress(0);
progressBar.setSecondaryProgress(value2);
//now force a redraw
progressBar.invalidate();
}
一个调用的例子是:
setColours(myProgressBar,
0xff303030, //bgCol1 grey
0xff909090, //bgCol2 lighter grey
0xff0000FF, //fg1Col1 blue
0xffFFFFFF, //fg1Col2 white
50, //value1
0xffFF0000, //fg2Col1 red
0xffFFFFFF, //fg2Col2 white
75); //value2
如果您不需要“次要进度”,只需将value2设置为value1。
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