[英]Changing colors of drawables in Android
我做了一個函數來改變android中drawables的顏色。 問題是它只能在 60-70% 的情況下工作。 我在應用程序的每個活動的 onCreate 方法上調用它。 (顏色保存在共享首選項中)正如您在此圖像中看到的,背景可繪制對象的顏色沒有改變它工作正常。 但有時在一個奇怪的活動中,只有一些可繪制對象的顏色發生變化,而其他的則保留其默認顏色。 這是函數的代碼:
public static void changeTheme(Context context) {
int color = Color.parseColor(AppUtils.getColorSharedPreference(context, AppConstants.customCOLOR));
if (color != -1) {
Drawable unwrappedDrawable = AppCompatResources.getDrawable(context, R.drawable.ic_untitled_4);
Drawable wrappedDrawable = null;
if (unwrappedDrawable != null) {
wrappedDrawable = DrawableCompat.wrap(unwrappedDrawable);
}
Drawable unwrappedDrawableExit = AppCompatResources.getDrawable(context, R.drawable.logout_img);
Drawable wrappedDrawableExit = null;
if (unwrappedDrawableExit != null) {
wrappedDrawableExit = DrawableCompat.wrap(unwrappedDrawableExit);
}
Drawable unwrappedDrawableFocus = AppCompatResources.getDrawable(context, R.drawable.focus_img);
Drawable wrappedDrawableFocus = null;
if (unwrappedDrawableFocus != null) {
wrappedDrawableFocus = DrawableCompat.wrap(unwrappedDrawableFocus);
}
Drawable unwrappedDrawableSettings = AppCompatResources.getDrawable(context, R.drawable.settings_img);
Drawable wrappedDrawableSettings = null;
if (unwrappedDrawableSettings != null) {
wrappedDrawableSettings = DrawableCompat.wrap(unwrappedDrawableSettings);
}
Drawable unwrappedDrawableHome = AppCompatResources.getDrawable(context, R.drawable.home_img);
Drawable wrappedDrawableHome = null;
if (unwrappedDrawableHome != null) {
wrappedDrawableHome = DrawableCompat.wrap(unwrappedDrawableHome);
}
Drawable unwrappedDrawableBackArrow = AppCompatResources.getDrawable(context, R.drawable.arrow);
Drawable wrappedDrawableBackArrow = null;
if (unwrappedDrawableBackArrow != null) {
wrappedDrawableBackArrow = DrawableCompat.wrap(unwrappedDrawableBackArrow);
}
Drawable unwrappedDrawableUnknownUser = AppCompatResources.getDrawable(context, R.drawable.unknown_user);
Drawable wrappedDrawableUnknownUser = null;
if (unwrappedDrawableUnknownUser != null) {
wrappedDrawableUnknownUser = DrawableCompat.wrap(unwrappedDrawableUnknownUser);
}
Drawable unwrappedDrawableVerified = AppCompatResources.getDrawable(context, R.drawable.verified_user);
Drawable wrappedDrawableVerified = null;
if (unwrappedDrawableVerified != null) {
wrappedDrawableVerified = DrawableCompat.wrap(unwrappedDrawableVerified);
}
Drawable unwrappedDrawableNoFace = AppCompatResources.getDrawable(context, R.drawable.no_face_detected);
Drawable wrappedDrawableNoFace = null;
if (unwrappedDrawableNoFace != null) {
wrappedDrawableNoFace = DrawableCompat.wrap(unwrappedDrawableNoFace);
}
Drawable unwrappedDrawableWarning = AppCompatResources.getDrawable(context, R.drawable.warning);
Drawable wrappedDrawableWarning = null;
if (unwrappedDrawableWarning != null) {
wrappedDrawableWarning = DrawableCompat.wrap(unwrappedDrawableWarning);
}
Drawable unwrappedDrawableMessage = AppCompatResources.getDrawable(context, R.drawable.message_new);
Drawable wrappedDrawableMessage = null;
if (unwrappedDrawableMessage != null) {
wrappedDrawableMessage = DrawableCompat.wrap(unwrappedDrawableMessage);
}
DrawableCompat.setTintList(wrappedDrawable, ColorStateList.valueOf(color));
DrawableCompat.setTintList(wrappedDrawableBackArrow, ColorStateList.valueOf(color));
DrawableCompat.setTintList(wrappedDrawableExit, ColorStateList.valueOf(color));
DrawableCompat.setTintList(wrappedDrawableHome, ColorStateList.valueOf(color));
DrawableCompat.setTintList(wrappedDrawableSettings, ColorStateList.valueOf(color));
DrawableCompat.setTintList(wrappedDrawableFocus, ColorStateList.valueOf(color));
DrawableCompat.setTintList(wrappedDrawableUnknownUser, ColorStateList.valueOf(color));
DrawableCompat.setTintList(wrappedDrawableVerified, ColorStateList.valueOf(color));
DrawableCompat.setTintList(wrappedDrawableNoFace, ColorStateList.valueOf(color));
if (wrappedDrawableWarning != null) {
DrawableCompat.setTintList(wrappedDrawableWarning, ColorStateList.valueOf(color));
}
if (wrappedDrawableMessage != null) {
DrawableCompat.setTintList(wrappedDrawableMessage, ColorStateList.valueOf(color));
}
}
}
這是一個示例調用:
if(Color.parseColor(AppUtils.getColorSharedPreference(LoginActivity.this,AppConstants.customCOLOR))!=-1)
{
AppUtils.changeTheme(LoginActivity.this);
}
你可以試試這個嗎?
Drawable unwrappedDrawable = AppCompatResources.getDrawable(context, R.drawable.my_drawable);
Drawable wrappedDrawable = DrawableCompat.wrap(unwrappedDrawable);
DrawableCompat.setTint(wrappedDrawable, Color.RED);
好的,所以我發現了真正的問題。 這個方法需要在 super.onCreate() 之前調用;
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