Question

我正在使用自定义搜索栏drawable并在我的xml中将其进度设置为50。它在Android Studio Preview中显示完美，但在设备中，背景颜色与进度颜色相同。我正在使用Android版本的Nexus 5：6.0.1。以下是代码和屏幕截图：

搜索条：

 <SeekBar
     android:id="@+id/seekbar"
     android:layout_width="match_parent"
     android:layout_height="wrap_content"
     android:layout_below="@id/ivRepeat"
     android:indeterminate="false"
     android:maxHeight="2dp"
     android:minHeight="2dp"
     android:progress="50"
     android:progressDrawable="@drawable/progress_drawable"
     android:thumbTint="@color/seekColor" />

progress_drawable.xml：

<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:id="@android:id/background">
        <shape>
            <corners android:radius="5dip" />
            <solid android:color="#F7CCBD" />
        </shape>
    </item>
    <item android:id="@android:id/progress">
        <clip>
            <shape>
                <corners android:radius="5dip" />
                <solid android:color="@color/seekColor" />
            </shape>
        </clip>
    </item>
</layer-list>

seekColor值：＃87DED5

它在Android工作室预览中的显示方式：

它在我的设备中的显示方式：

为什么会发生这种情况以及如何解决这个问题？

Answer 1

下面，一旦明确项目，代码就没有问题。

如果仍有问题，请尝试以下代码段。

<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:id="@android:id/background"> // background of seekbar
        <shape>
            <corners android:radius="5dip" />
            <solid android:color="#F7CCBD" />
        </shape>
    </item>
    <item android:id="@android:id/progress"> // progress color
        <clip>
            <shape>
                <corners android:radius="5dip" />
                <solid android:color="#87DED5" />
            </shape>
        </clip>
    </item>
    <item android:id="@android:id/secondaryProgress">//secondaryProgress color
        <clip>
            <shape>
                <corners android:radius="5dip" />
                <solid android:color="#F7CCBD" />
            </shape>
        </clip>
    </item>
</layer-list>

Answer 2

自定义搜索栏以更改搜索栏进度，进度背景和拇指颜色的颜色。

以下是自定义搜索栏类。

package com.customseekbar;

import android.annotation.TargetApi;
import android.content.Context;
import android.content.res.ColorStateList;
import android.content.res.TypedArray;
import android.graphics.Color;
import android.graphics.PorterDuff;
import android.graphics.drawable.Drawable;
import android.graphics.drawable.GradientDrawable;
import android.graphics.drawable.LayerDrawable;
import android.graphics.drawable.NinePatchDrawable;
import android.graphics.drawable.ScaleDrawable;
import android.os.Build;
import android.support.annotation.IntRange;
import android.util.AttributeSet;
import android.util.Log;
import android.view.MotionEvent;
import android.view.View;
import android.view.ViewGroup;
import android.view.ViewTreeObserver;
import android.widget.SeekBar;

import com.customseekbar.R;

import java.util.concurrent.Callable;


public class CustomSeekBar extends SeekBar implements View.OnTouchListener {

private static final String TAG = "CustomSeekbar";
private int mActualBackgroundColor;

/***
 * Thumb and Progress colors
 */
int mThumbColor, mProgressColor, mProgressBackgroundColor;

/***
 * Thumb drawable
 */
Drawable mThumb;
/***
 * States for Lollipop ColorStateList
 */
int[][] states = new int[][]{
        new int[]{android.R.attr.state_enabled}, // enabled
        new int[]{android.R.attr.state_pressed},  // pressed
        new int[]{-android.R.attr.state_enabled}, // disabled
        new int[]{} //everything else
};

/***
 * Default colors to be black for Thumb ColorStateList
 */
int[] colorsThumb = new int[]{
        Color.BLACK,
        Color.BLACK,
        Color.LTGRAY,
        Color.BLACK
};

/***
 * Default colors to be black for Progress ColorStateList
 */
int[] colorsProgress = new int[]{
        Color.BLACK,
        Color.BLACK,
        Color.LTGRAY,
        Color.BLACK
};

/***
 * Default colors to be black for Progress ColorStateList
 */
int[] colorsProgressBackground = new int[]{
        Color.BLACK,
        Color.BLACK,
        Color.LTGRAY,
        Color.BLACK

};

/***
 * ColorStateList objects
 */
ColorStateList mColorStateListThumb, mColorStateListProgress, mColorStateListProgressBackground;

/***
 * Used for APIs below 21 to determine height of the seekBar as well as the new thumb drawable
 */
private int mOriginalThumbHeight;
private int mThumbAlpha = 255;
private boolean mIsEnabled = true;

/***
 * Updates the thumbColor dynamically
 *
 * @param thumbColor Color representing thumb drawable
 */
public void setThumbColor(final int thumbColor) {
    mThumbColor = thumbColor;
    if (lollipopAndAbove()) {
        setupThumbColorLollipop();
    } else {
        gradientDrawable.setColor(mIsEnabled ? thumbColor : Color.LTGRAY);
    }
    invalidate();
    requestLayout();
}

/***
 * Method called for APIs 21 and above to setup thumb Color
 */
@TargetApi(Build.VERSION_CODES.LOLLIPOP)
private void setupThumbColorLollipop() {
    if (lollipopAndAbove()) {
        colorsThumb[0] = mThumbColor;
        colorsThumb[1] = mThumbColor;
        colorsThumb[2] = Color.LTGRAY;
        mColorStateListThumb = new ColorStateList(states, colorsThumb);
        setThumbTintList(mColorStateListThumb);
    } else {

    }
}

/***
 * Updates the progressColor dynamically
 *
 * @param progressColor Color representing progress drawable
 */
public void setProgressColor(final int progressColor) {
    mProgressColor = progressColor;
    if (lollipopAndAbove()) {
        setupProgressColorLollipop();
    } else {
        setupProgressColor();
    }

    invalidate();
    requestLayout();
}

/***
 * Checks if the device is running API greater than 21
 *
 * @return true if lollipop and above
 */
private boolean lollipopAndAbove() {
    return Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP;
}

/***
 * Method called from APIs below 21 to setup Progress Color
 */
private void setupProgressColor() {
    try {
        //load up the drawable and apply color
        LayerDrawable ld = (LayerDrawable) getProgressDrawable();
        ScaleDrawable shape = (ScaleDrawable) (ld.findDrawableByLayerId(android.R.id.progress));
        shape.setColorFilter(mProgressColor, PorterDuff.Mode.SRC_IN);

        //set the background to transparent
        NinePatchDrawable ninePatchDrawable = (NinePatchDrawable) (ld.findDrawableByLayerId(android.R.id.background));
        ninePatchDrawable.setColorFilter(Color.TRANSPARENT, PorterDuff.Mode.SRC_IN);
    } catch (NullPointerException e) {
        //TODO: Handle exception
    }
}

/***
 * Method called from APIs >= 21 to setup Progress Color
 */
@TargetApi(Build.VERSION_CODES.LOLLIPOP)
private void setupProgressColorLollipop() {
    colorsProgress[0] = mProgressColor;
    colorsProgress[1] = mProgressColor;
    mColorStateListProgress = new ColorStateList(states, colorsProgress);
    setProgressTintList(mColorStateListProgress);
}

/***
 * Updates the progressBackgroundColor dynamically
 *
 * @param progressBackgroundColor Color representing progress drawable
 */
@TargetApi(Build.VERSION_CODES.JELLY_BEAN)
public void setProgressBackgroundColor(final int progressBackgroundColor) {
    mProgressBackgroundColor = progressBackgroundColor;
    if (lollipopAndAbove()) {
        setupProgressBackgroundLollipop();
    } else {
        setupProgressBackground();
    }
    invalidate();
    requestLayout();
}

/***
 * Method called from APIs 21 and above to setup the Progress-background-line Color
 */
@TargetApi(Build.VERSION_CODES.LOLLIPOP)
private void setupProgressBackgroundLollipop() {
    colorsProgressBackground[0] = mProgressBackgroundColor;
    colorsProgressBackground[1] = mProgressBackgroundColor;
    mColorStateListProgressBackground = new ColorStateList(states, colorsProgressBackground);
    setProgressBackgroundTintList(mColorStateListProgressBackground);
}

/***
 * Method called from APIs below 21 to setup the Progress-background-line Color
 */
@TargetApi(Build.VERSION_CODES.JELLY_BEAN)
private void setupProgressBackground() {
    //load up the drawable and apply color
    SeekbarBackgroundDrawable seekBarBackgroundDrawable = new SeekbarBackgroundDrawable(getContext(),
            mProgressBackgroundColor, mActualBackgroundColor, getPaddingLeft(), getPaddingRight());
    if (belowJellybean())
        setBackgroundDrawable(seekBarBackgroundDrawable);
    else
        setBackground(seekBarBackgroundDrawable);
}

/***
 * Constructor for creating CustomSeekbar through code
 *
 * @param context Context object
 */
public SeekBar(final Context context) {
    super(context);
}

GradientDrawable gradientDrawable = new GradientDrawable();

/***
 * Constructor for creating CustomSeekbar through XML
 *
 * @param context Context Object
 * @param attrs   Attributes passed through XML
 */
@TargetApi(Build.VERSION_CODES.LOLLIPOP)
public CustomSeekBar(final Context context, final AttributeSet attrs) {
    super(context, attrs);
    TypedArray a = context.getTheme()
            .obtainStyledAttributes(
                    attrs,
                    R.styleable.SeekBarCompat,
                    0, 0);
    int array[] = {android.R.attr.background, android.R.attr.enabled};
    TypedArray b = context.getTheme()
            .obtainStyledAttributes(attrs, array, 0, 0);
    try {
        mThumbColor = a.getColor(R.styleable.SeekBarCompat_thumbColor, getPrimaryColorFromSelectedTheme(context));
        mProgressColor = a.getColor(R.styleable.SeekBarCompat_progressColor, getPrimaryColorFromSelectedTheme(context));
        mProgressBackgroundColor = a.getColor(R.styleable.SeekBarCompat_progressBackgroundColor, Color.BLACK);
        mThumbAlpha = (int) (a.getFloat(R.styleable.SeekBarCompat_thumbAlpha, 1) * 255);
        mActualBackgroundColor = b.getColor(0, Color.TRANSPARENT);
        mIsEnabled = b.getBoolean(1, true);
        if (lollipopAndAbove()) {
            setSplitTrack(false);
            setupThumbColorLollipop();
            setupProgressColorLollipop();
            setupProgressBackgroundLollipop();
            getThumb().setAlpha(mThumbAlpha);
        } else {
            Log.e(TAG, "CustomSeekbar isEnabled? " + mIsEnabled);
            setupProgressColor();
            setOnTouchListener(this);
            gradientDrawable.setShape(GradientDrawable.OVAL);
            gradientDrawable.setSize(50, 50);
            gradientDrawable.setColor(mIsEnabled ? mThumbColor : Color.LTGRAY);
            triggerMethodOnceViewIsDisplayed(this, new Callable<Void>() {
                @Override
                public Void call() throws Exception {
                    ViewGroup.LayoutParams layoutParams = getLayoutParams();
                    mOriginalThumbHeight = mThumb.getIntrinsicHeight();
                    gradientDrawable.setSize(mOriginalThumbHeight / 3, mOriginalThumbHeight / 3);
                    gradientDrawable.setAlpha(mThumbAlpha);
                    setThumb(gradientDrawable);
                    if (layoutParams.height < mOriginalThumbHeight)
                        layoutParams.height = mOriginalThumbHeight;
                    setupProgressBackground();
                    return null;
                }
            });
        }
    } finally {
        a.recycle();
        b.recycle();
    }
}

private boolean belowJellybean() {
    return Build.VERSION.SDK_INT < 16;
}

/***
 * Gets the Primary Color from theme
 *
 * @param context Context Object
 * @return Primary Color
 */
public static int getPrimaryColorFromSelectedTheme(Context context) {
    int[] attrs = {R.attr.colorPrimary, R.attr.colorPrimaryDark};
    TypedArray ta = context.getTheme()
            .obtainStyledAttributes(attrs);
    int primaryColor = ta.getColor(0, Color.BLACK); //1 index for primaryColorDark
    //default value for primaryColor is set to black if primaryColor not found
    ta.recycle();
    return primaryColor;
}

/***
 * Utility method for ViewTreeObserver
 *
 * @param view   View object
 * @param method Method to be called once View is displayed
 */
public static void triggerMethodOnceViewIsDisplayed(final View view, final Callable<Void> method) {
    final ViewTreeObserver observer = view.getViewTreeObserver();
    observer.addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
        @Override
        public void onGlobalLayout() {
            if (Build.VERSION.SDK_INT < 16) {
                view.getViewTreeObserver()
                        .removeGlobalOnLayoutListener(this);
            } else view.getViewTreeObserver()
                    .removeOnGlobalLayoutListener(this);
            try {
                method.call();
            } catch (Exception e) {
                Log.e(TAG, "onGlobalLayout " + e.toString());
            }
        }
    });
}

/***
 * Touch listener for changing Thumb Drawable
 *
 * @param v     View Object
 * @param event Motion Event
 * @return
 */
@Override
public boolean onTouch(final View v, final MotionEvent event) {
    if (!lollipopAndAbove())
        switch (event.getAction()) {
            case MotionEvent.ACTION_DOWN:
                gradientDrawable = new GradientDrawable();
                gradientDrawable.setShape(GradientDrawable.OVAL);
                gradientDrawable.setSize(mOriginalThumbHeight / 2, mOriginalThumbHeight / 2);
                gradientDrawable.setColor(mIsEnabled ? mThumbColor : Color.LTGRAY);
                gradientDrawable.setDither(true);
                gradientDrawable.setAlpha(mThumbAlpha);
                setThumb(gradientDrawable);
                break;
            case MotionEvent.ACTION_UP:
                gradientDrawable = new GradientDrawable();
                gradientDrawable.setShape(GradientDrawable.OVAL);
                gradientDrawable.setSize(mOriginalThumbHeight / 3, mOriginalThumbHeight / 3);
                gradientDrawable.setColor(mIsEnabled ? mThumbColor : Color.LTGRAY);
                gradientDrawable.setDither(true);
                gradientDrawable.setAlpha(mThumbAlpha);
                setThumb(gradientDrawable);
                break;
            default:
                break;
        }
    return false;
}


/***
 * Called to substitute getThumb() for APIs below 16
 *
 * @param thumb
 */
@Override
public void setThumb(final Drawable thumb) {
    super.setThumb(thumb);
    mThumb = thumb;
}

/***
 * Sets the thumb alpha (Obviously)
 *
 * @param alpha
 */
@TargetApi(Build.VERSION_CODES.JELLY_BEAN)
public void setThumbAlpha(@IntRange(from = 0, to = 255) int alpha) {
    mThumbAlpha = alpha;
    if (!belowJellybean())
        getThumb().setAlpha(mThumbAlpha);
    setLayoutParams(getLayoutParams());
}

/***
 * Enables or disables the whole seekBar!
 *
 * @param enabled
 */
@Override
public void setEnabled(final boolean enabled) {
    mIsEnabled = enabled;
    triggerMethodOnceViewIsDisplayed(this, new Callable<Void>() {
        @TargetApi(Build.VERSION_CODES.JELLY_BEAN)
        @Override
        public Void call() throws Exception {
            if (!lollipopAndAbove()) {
                gradientDrawable = new GradientDrawable();
                gradientDrawable.setShape(GradientDrawable.OVAL);
                gradientDrawable.setSize(mOriginalThumbHeight / 3, mOriginalThumbHeight / 3);
                gradientDrawable.setColor(mIsEnabled ? mThumbColor : Color.LTGRAY);
                gradientDrawable.setDither(true);
                gradientDrawable.setAlpha(mThumbAlpha);
                setThumb(gradientDrawable);
                //load up the drawable and apply color
                LayerDrawable ld = (LayerDrawable) getProgressDrawable();
                ScaleDrawable shape = (ScaleDrawable) (ld.findDrawableByLayerId(android.R.id.progress));
                shape.setColorFilter(mIsEnabled ? mProgressColor : Color.LTGRAY, PorterDuff.Mode.SRC_IN);
                //set the background to transparent
                NinePatchDrawable ninePatchDrawable = (NinePatchDrawable) (ld.findDrawableByLayerId(android.R.id.background));
                ninePatchDrawable.setColorFilter(Color.TRANSPARENT, PorterDuff.Mode.SRC_IN);
                //background
                //load up the drawable and apply color
                SeekbarBackgroundDrawable seekBarBackgroundDrawable = new SeekbarBackgroundDrawable(getContext(),
                        mIsEnabled ? mProgressBackgroundColor : Color.LTGRAY, mActualBackgroundColor, getPaddingLeft(), getPaddingRight());
                if (belowJellybean())
                    setBackgroundDrawable(seekBarBackgroundDrawable);
                else
                    setBackground(seekBarBackgroundDrawable);
            }
            CustomSeekBar.super.setEnabled(enabled);
            return null;
        }
    });

}
}

使用以下方法更改搜索栏的颜色：

CustomSeekBar mSeekbar =    (CustomSeekBar)findViewById(R.id.video_fragment_seekbar);
mSeekbar.setThumbColor(AppTheme.getInstance(activity).getSeekbarThumbColor());      

 mSeekbar.setProgressColor(AppTheme.getInstance(activity).getColor());           

 mSeekbar.setProgressBackgroundColor(ContextCompat.getColor(activity, R.color.seekbar_progress_bg));

Answer 3

将它放在progress_drawable.xml中：不要使用

<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="line">

    <stroke android:width="1dp" android:color="#EDA216"/>
    <corners android:radius="1dp" />

</shape>

Seekbar仅显示进度颜色而非背景颜色

3 个答案: