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
还有一件小事,如果你继承了一个基础主题,主题解决方案也会起作用,所以对于应用紧凑,你的主题应该是:
<style name="AppTheme.Custom" parent="@style/Theme.AppCompat">
<item name="colorAccent">@color/custom</item>
</style>
然后在进度条主题中设置这个
<ProgressBar
android:id="@+id/progressCircle_progressBar"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:theme="@style/AppTheme.Custom"
android:indeterminate="true"/>
其他回答
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。
最简单的解决方案,如果你想改变布局xml文件的颜色,使用下面的代码和使用indeterminateTint属性为您想要的颜色。
<ProgressBar
android:id="@+id/progressBar"
style="?android:attr/progressBarStyle"
android:layout_width="wrap_content"
android:indeterminate="true"
android:indeterminateTintMode="src_atop"
android:indeterminateTint="#ddbd4e"
android:layout_height="wrap_content"
android:layout_marginBottom="20dp"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true" />
简单的使用方法:
PorterDuff.Mode mode = PorterDuff.Mode.SRC_IN;
if (Build.VERSION.SDK_INT <= Build.VERSION_CODES.GINGERBREAD_MR1) {
mode = PorterDuff.Mode.MULTIPLY;
}
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
progressBar.setProgressTintList(ColorStateList.valueOf(Color.RED));
progressBar.setProgressBackgroundTintList(ColorStateList.valueOf(Color.RED));
} else {
Drawable progressDrawable;
progressDrawable = (progressBar.isIndeterminate() ? progressBar.getIndeterminateDrawable() : progressBar.getProgressDrawable()).mutate();
progressDrawable.setColorFilter(context.getResources().getColor(Color.RED), mode);
progressBar.setProgressDrawable(progressDrawable);
}
ProgressBar freeRamPb = findViewById(R.id.free_ram_progress_bar);
freeRamPb.getProgressDrawable().setColorFilter(
Color.BLUE, android.graphics.PorterDuff.Mode.SRC_IN);
水平进度条自定义材质样式:
更改水平进度条的背景和进度的颜色。
<style name="MyProgressBar" parent="@style/Widget.AppCompat.ProgressBar.Horizontal">
<item name="android:progressBackgroundTint">#69f0ae</item>
<item name="android:progressTint">#b71c1c</item>
<item name="android:minWidth">200dp</item>
</style>
通过设置样式属性将其应用到进度条,对于自定义材质样式和自定义进度条请检查http://www.zoftino.com/android-progressbar-and-custom-progressbar-examples
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