下面列出了android.graphics.drawable.ColorDrawable#setAlpha() 实例代码，或者点击链接到github查看源代码，也可以在右侧发表评论。
private void setPaintColor(int alpha, int color)
{
if (mAnimatedCircleDrawable != null)
{
mAnimatedCircleDrawable.setColor(color);
mAnimatedCircleDrawable.setAlpha(alpha);
} else if (mColorDrawable != null)
{
mColorDrawable.setColor(color);
mColorDrawable.setAlpha(alpha);
}
if (mIntentReviewLayout != null)
{
ColorDrawable intentBackground = (ColorDrawable) mIntentReviewLayout
.getBackground();
intentBackground.setColor(color);
intentBackground.setAlpha(alpha);
}
}
private void setCancelBackgroundColor(int alpha, int color)
{
LayerDrawable layerDrawable = (LayerDrawable) mCancelButton.getBackground();
Drawable d = layerDrawable.getDrawable(0);
if (d instanceof AnimatedCircleDrawable)
{
AnimatedCircleDrawable animatedCircleDrawable = (AnimatedCircleDrawable) d;
animatedCircleDrawable.setColor(color);
animatedCircleDrawable.setAlpha(alpha);
} else if (d instanceof ColorDrawable)
{
ColorDrawable colorDrawable = (ColorDrawable) d;
if (!ApiHelper.isLOrHigher())
{
colorDrawable.setColor(color);
}
colorDrawable.setAlpha(alpha);
}
}
private void setImageBitmap(Bitmap bitmap) {
if (bitmap != null) {
// menu 中有图标时要通过 getHeaderView 查找子 view
View headerView = navigationView.getHeaderView(0);
ImageView iv = (ImageView) headerView.findViewById(R.id.main_left_nav_image);
iv.setImageBitmap(bitmap);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
ColorDrawable cd = new ColorDrawable(Color.BLACK);
int alpha = appPreference.getImageWallAlpha();
cd.setAlpha(alpha);
iv.setForeground(cd);
}
Animation animation = AnimationUtils.loadAnimation(activity, android.R.anim.fade_in);
iv.startAnimation(animation);
}
}
protected void loadChatConfig() {
rightBubbleColor = ContextCompat.getColor(Qiscus.getApps(), Qiscus.getChatConfig().getRightBubbleColor());
rightBubbleTextColor = ContextCompat.getColor(Qiscus.getApps(), Qiscus.getChatConfig().getRightBubbleTextColor());
rightBubbleTimeColor = ContextCompat.getColor(Qiscus.getApps(), Qiscus.getChatConfig().getRightBubbleTimeColor());
rightLinkTextColor = ContextCompat.getColor(Qiscus.getApps(), Qiscus.getChatConfig().getRightLinkTextColor());
rightBubbleDrawable = ContextCompat.getDrawable(Qiscus.getApps(), R.drawable.qiscus_rounded_primary_light_chat_bg);
rightBubbleDrawable.setColorFilter(rightBubbleColor, PorterDuff.Mode.SRC_ATOP);
leftBubbleColor = ContextCompat.getColor(Qiscus.getApps(), Qiscus.getChatConfig().getLeftBubbleColor());
leftBubbleTextColor = ContextCompat.getColor(Qiscus.getApps(), Qiscus.getChatConfig().getLeftBubbleTextColor());
leftBubbleTimeColor = ContextCompat.getColor(Qiscus.getApps(), Qiscus.getChatConfig().getLeftBubbleTimeColor());
leftLinkTextColor = ContextCompat.getColor(Qiscus.getApps(), Qiscus.getChatConfig().getLeftLinkTextColor());
leftBubbleDrawable = ContextCompat.getDrawable(Qiscus.getApps(), R.drawable.qiscus_rounded_primary_chat_bg);
leftBubbleDrawable.setColorFilter(leftBubbleColor, PorterDuff.Mode.SRC_ATOP);
failedToSendMessageColor = ContextCompat.getColor(Qiscus.getApps(), Qiscus.getChatConfig().getFailedToSendMessageColor());
readIconColor = ContextCompat.getColor(Qiscus.getApps(), Qiscus.getChatConfig().getReadIconColor());
dateColor = ContextCompat.getColor(Qiscus.getApps(), Qiscus.getChatConfig().getDateColor());
senderNameColor = ContextCompat.getColor(Qiscus.getApps(), Qiscus.getChatConfig().getSenderNameColor());
selectionBackground = new ColorDrawable(ContextCompat.getColor(Qiscus.getApps(),
Qiscus.getChatConfig().getSelectedBubbleBackgroundColor()));
selectionBackground.setAlpha(51);
}
@Override
public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
mSearchView = (FloatingSearchView) view.findViewById(R.id.floating_search_view);
mHeaderView = view.findViewById(R.id.header_view);
mDimSearchViewBackground = view.findViewById(R.id.dim_background);
mDimDrawable = new ColorDrawable(Color.BLACK);
mDimDrawable.setAlpha(0);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
mDimSearchViewBackground.setBackground(mDimDrawable);
} else {
mDimSearchViewBackground.setBackgroundDrawable(mDimDrawable);
}
setupFloatingSearch();
setupDrawer();
}
@Keep
@Override
public void setAlpha(float alpha) {
ColorDrawable colorDrawable = (ColorDrawable) getBackground();
colorDrawable.setAlpha((int) (0xc0 * alpha));
invalidate();
}
@Keep
@Override
public void setAlpha(float alpha) {
ColorDrawable colorDrawable = (ColorDrawable) getBackground();
colorDrawable.setAlpha((int) (0xc0 * alpha));
invalidate();
}
@Override
public void themeChange(ThemeEnum themeEnum, int[] colors) {
int[] cs = ColorUtils.get10ThemeColors(activity, themeEnum);
int statusC = cs[0];
int toolbarC = cs[1];
int accentC = cs[2];
int mainBC = cs[3];
int vicBC = cs[4];
int mainTC = cs[5];
int vicTC = cs[6];
int navC = cs[7];
int toolbarMainTC = cs[8];
int toolbarVicTC = cs[9];
listViewsController.themeChange(themeEnum, cs);
mContainer.setBackgroundColor(navC);
mName.setTextColor(mainTC);
mArts.setTextColor(vicTC);
mPlay.setPauseLineColor(mainTC);
mPlay.setSolidColor(mainTC);
mPlay.setTriangleColor(mainTC);
mProgress.setBackgroundColor(accentC);
ColorDrawable cd = new ColorDrawable(vicBC);
cd.setAlpha(200);
mProgressBG.setBackground(cd);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
mShowList.getDrawable().setTint(mainTC);
}
}
public static void showDetailDialog(Activity activity, SongInfo info) {
DialogProvider manager = new DialogProvider(activity);
String[] infos = new String[7];
infos[0] = "歌曲：" + info.getTitle();
infos[1] = "歌手：" + info.getArtist();
infos[2] = "专辑：" + info.getAlbum();
infos[3] = "时长：" + StringUtils.getGenTimeMS((int) info.getDuration());
infos[4] = "格式：" + info.getMime_type();
infos[5] = "大小：" + String.valueOf(info.getSize() >> 10 >> 10) + " MB";
infos[6] = "路径：" + info.getData();
View view = activity.getLayoutInflater().inflate(R.layout.list_image, null);
ListView listView = (ListView) view.findViewById(R.id.list_image_list);
ImageView imageView = (ImageView) view.findViewById(R.id.list_image_image);
listView.setAdapter(new ArrayAdapter<String>(
activity,
R.layout.text_view_start,
infos
));
Bitmap b = BitmapUtils.bitmapResizeFromFile(
info.getAlbum_path(),
imageView.getWidth(),
imageView.getHeight());
if (b == null) {
b = BitmapUtils.getDefaultPictureForAlbum(activity, imageView.getWidth(), imageView.getHeight());
}
if (b != null) {
imageView.setImageBitmap(b);
}
ColorDrawable drawable = new ColorDrawable(Color.WHITE);
drawable.setAlpha(245);
listView.setBackground(drawable);
manager.createFullyCustomDialog(view, "歌曲信息").show();
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
int pos = 0;
if (getIntent().getExtras() != null) {
pos = getIntent().getExtras().getInt("pos");
}
String[] birds = getResources().getStringArray(R.array.birds);
TypedArray imgs = getResources().obtainTypedArray(R.array.birds_img);
int resId = imgs.getResourceId(pos, -1);
setTitle(birds[pos]);
getWindow().requestFeature(Window.FEATURE_ACTION_BAR_OVERLAY);
ColorDrawable color = new ColorDrawable(Color.BLACK);
color.setAlpha(128);
getSupportActionBar().setBackgroundDrawable(color);
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
mHandler = new Handler();
ImageView imageView = new ImageView(this);
imageView.setScaleType(ScaleType.CENTER_INSIDE);
imageView.setImageResource(resId);
imageView.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
getSupportActionBar().show();
hideActionBarDelayed(mHandler);
}
});
setContentView(imageView);
this.getWindow().setBackgroundDrawableResource(android.R.color.black);
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
int pos = 0;
if (getIntent().getExtras() != null) {
pos = getIntent().getExtras().getInt("pos");
}
String[] birds = getResources().getStringArray(R.array.birds);
TypedArray imgs = getResources().obtainTypedArray(R.array.birds_img);
int resId = imgs.getResourceId(pos, -1);
setTitle(birds[pos]);
getWindow().requestFeature(Window.FEATURE_ACTION_BAR_OVERLAY);
ColorDrawable color = new ColorDrawable(Color.BLACK);
color.setAlpha(128);
getActionBar().setBackgroundDrawable(color);
getActionBar().setDisplayHomeAsUpEnabled(true);
mHandler = new Handler();
ImageView imageView = new ImageView(this);
imageView.setScaleType(ScaleType.CENTER_INSIDE);
imageView.setImageResource(resId);
imageView.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
getActionBar().show();
hideActionBarDelayed(mHandler);
}
});
setContentView(imageView);
this.getWindow().setBackgroundDrawableResource(android.R.color.black);
}
public void updateColors(int color, boolean isVarying) {
ColorDrawable bd = new ColorDrawable(color);
bd.setAlpha(100);
mListTitleContainer.setBackground(bd);
int colorA = ColorUtils.setAlphaComponent(color, 235);
mViewRoot.setCardBackgroundColor(colorA);
ThemeEnum t;
if (com.duan.musicoco.util.ColorUtils.isBrightSeriesColor(colorA)) {
t = WHITE;
} else {
t = DARK;
}
int cs[];
switch (t) {
case WHITE: {
if (isVarying) {
cs = com.duan.musicoco.util.ColorUtils.get2ColorWhiteThemeForPlayOptions(activity);
} else {
cs = com.duan.musicoco.util.ColorUtils.get2WhiteThemeTextColor(activity);
}
break;
}
case DARK:
default: {
if (isVarying) {
cs = com.duan.musicoco.util.ColorUtils.get2ColorDarkThemeForPlayOptions(activity);
} else {
cs = com.duan.musicoco.util.ColorUtils.get2DarkThemeTextColor(activity);
}
break;
}
}
songOption.setDrawableColor(cs[0]);
listOption.setDrawableColor(cs[0]);
if (playListAdapter != null) {
playListAdapter.setMainTextColor(cs[0]);
playListAdapter.setVicTextColor(cs[1]);
}
listOption.updateColors();
songOption.updateColors();
}
public Drawable getDrawable(int alpha) {
Log.d(TAG, "getTickedButtonDrawable " + getName());
ColorDrawable cd = new ColorDrawable(Color.parseColor(hex()));
cd.setAlpha(alpha);
return cd;
}
@Override
public void setValue(ColorDrawable object, int value) {
object.setAlpha(value);
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_transition);
ButterKnife.inject(this);
Bundle bundle = getIntent().getExtras();
info = bundle.getParcelable("INFO");
dog = bundle.getParcelable("DOG");
background = new ColorDrawable(getResources().getColor(R.color.yellow));
background.setAlpha(0);
topLevel.setBackground(background);
image.setImageResource(dog.getResource());
text1.setText(Html.fromHtml(IOUtils.readFile(this, "source/itemclick.java.html")));
text2.setText(Html.fromHtml(IOUtils.readFile(this, "source/predraw.java.html")));
text3.setText(Html.fromHtml(IOUtils.readFile(this, "source/init.java.html")));
text4.setText(Html.fromHtml(IOUtils.readFile(this, "source/anim1.java.html")));
if (savedInstanceState == null){
image.getViewTreeObserver().addOnPreDrawListener(new ViewTreeObserver.OnPreDrawListener() {
@Override
public boolean onPreDraw() {
image.getViewTreeObserver().removeOnPreDrawListener(this);
int[] screenLocation = new int[2];
image.getLocationOnScreen(screenLocation);
leftDelta = info.left - screenLocation[0];
topDelta = info.top - screenLocation[1];
// Scale factors to make the large version the same size as the thumbnail
widthScale = (float) info.width / image.getWidth();
heightScale = (float) info.height / image.getHeight();
runEnterAnimation();
return true;
}
});
}
}
@Override
public void setValue(ColorDrawable object, int value) {
object.setAlpha(value);
}