Java Code Examples for android.graphics.drawable.StateListDrawable#setEnterFadeDuration()

private static StateListDrawable getStateListDrawable(@ColorInt int normalColor,
                                                      @ColorInt int pressedColor) {
    StateListDrawable states = new StateListDrawable();
    states.addState(new int[]{android.R.attr.state_activated}, getColorDrawable(pressedColor));
    if (!FlexibleUtils.hasLollipop()) {
        states.addState(new int[]{android.R.attr.state_pressed}, getColorDrawable(pressedColor));
    }
    states.addState(new int[]{}, getColorDrawable(normalColor));
    // Animating across states.
    // It seems item background is lost on scrolling out of the screen on 21 <= API <= 23
    if (!FlexibleUtils.hasLollipop() || FlexibleUtils.hasNougat()) {
        int duration = 200; //android.R.integer.config_shortAnimTime
        states.setEnterFadeDuration(duration);
        states.setExitFadeDuration(duration);
    }
    return states;
}
 

/**
 * 设置shape属性
 * 设置完所有属性后调用设置背景
 */
public void init() {
    if (mView instanceof EditText) {
        Log.i("v", "click:" + mView.isClickable() + ";enable:" + mView.isEnabled());
    }
    //获取view当前drawable--用于判断是否通过默认属性设置背景
    Drawable mDrawable = mView.getBackground();
    //判断是否使用自定义颜色值
    boolean isSetBg = mBackgroundColor != Integer.MAX_VALUE
            || mBackgroundPressedColor != Integer.MAX_VALUE
            || mBackgroundDisabledColor != Integer.MAX_VALUE
            || mBackgroundSelectedColor != Integer.MAX_VALUE
            || mStrokeWidth > 0 || mRadius > 0
            || mTopLeftRadius > 0 || mTopLeftRadius > 0 || mBottomLeftRadius > 0 || mBottomRightRadius > 0;

    setDrawable(mBackgroundChecked, mBackgroundCheckedColor, mStrokeCheckedColor);
    setDrawable(mBackgroundSelected, mBackgroundSelectedColor, mStrokeSelectedColor);
    setDrawable(mBackground, mBackgroundColor, mStrokeColor);
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP
            && mRippleEnable
            && mView.isEnabled()
            && mView.isClickable()) {//5.0以上且设置水波属性并且可操作
        RippleDrawable rippleDrawable = new RippleDrawable(
                new ColorStateList(
                        new int[][]{
                                new int[]{mStatePressed},
                                new int[]{}
                        },
                        new int[]{
                                mRippleColor != Integer.MAX_VALUE ? mRippleColor : getBackColor(mBackgroundPressedColor),
                                mRippleColor
                        }
                )
                , getContentDrawable(mDrawable, isSetBg)
                , null);
        mView.setBackground(rippleDrawable);
    } else {
        if (!isSetBg) {
            return;
        }
        setDrawable(mBackgroundPressed, mBackgroundPressedColor, mStrokePressedColor);
        setDrawable(mBackgroundDisabled, mBackgroundDisabledColor, mStrokeDisabledColor);
        StateListDrawable mStateDrawable = new StateListDrawable();
        mStateDrawable.setEnterFadeDuration(mEnterFadeDuration);
        mStateDrawable.setExitFadeDuration(mExitFadeDuration);

        mStateDrawable.addState(new int[]{mStatePressed}, mBackgroundPressed);
        mStateDrawable.addState(new int[]{mStateSelected}, mBackgroundSelected);
        mStateDrawable.addState(new int[]{mStateChecked}, mBackgroundChecked);
        mStateDrawable.addState(new int[]{mStateDisabled}, mBackgroundDisabled);
        //默认状态--放置在最后否则其它状态不生效
        mStateDrawable.addState(new int[]{}, mBackground);
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
            mView.setBackground(mStateDrawable);
        } else {
            mView.setBackgroundDrawable(mStateDrawable);
        }
    }
    return;
}
 

/**
 * Creates a new {@code StateListDrawable} drawable. States that should be provided are "normal",<br>
 * "clicked" (pressed) and "checked" (selected). All states are actually integer colors.<br>
 * Optionally, {@code shouldFade} can be set to false to avoid the fading effect.<br>
 * <br>
 * Note: <i>{@link Color#TRANSPARENT} can be used to supply a transparent state.</i>
 *
 * @param normal Color for the idle state
 * @param clicked Color for the clicked/pressed state
 * @param checked Color for the checked/selected state
 * @param shouldFade Set to true to enable the fading effect, false otherwise
 * @return A {@link StateListDrawable} drawable object ready for use
 */
@SuppressLint({
        "InlinedApi", "NewApi"
})
public Drawable createStateDrawable(int normal, int clicked, int checked, boolean shouldFade) {
    // init state arrays
    int[] selectedState = new int[] {
            android.R.attr.state_selected
    };
    int[] pressedState = new int[] {
            android.R.attr.state_pressed
    };
    int[] checkedState = new int[] {
            android.R.attr.state_checked
    };
    int[] focusedState = new int[] {
            android.R.attr.state_focused
    };
    int[] activatedState = new int[] {};
    if (Build.VERSION.SDK_INT > Build.VERSION_CODES.GINGERBREAD_MR1) {
        activatedState = new int[] {
                android.R.attr.state_activated
        };
    }

    // init normal state drawable
    Drawable normalDrawable = new GradientDrawable(Orientation.BOTTOM_TOP, new int[] {
            normal, normal
    }).mutate();
    if (normal == Color.TRANSPARENT)
        normalDrawable.setAlpha(0);
    else
        normalDrawable.setBounds(BOUNDS, BOUNDS, BOUNDS, BOUNDS);

    // init clicked state drawable
    Drawable clickedDrawable = new GradientDrawable(Orientation.BOTTOM_TOP, new int[] {
            clicked, clicked
    }).mutate();
    if (clicked == Color.TRANSPARENT)
        clickedDrawable.setAlpha(0);
    else
        clickedDrawable.setBounds(BOUNDS, BOUNDS, BOUNDS, BOUNDS);

    // init checked state drawable
    Drawable checkedDrawable = new GradientDrawable(Orientation.BOTTOM_TOP, new int[] {
            checked, checked
    }).mutate();
    if (checked == Color.TRANSPARENT)
        checkedDrawable.setAlpha(0);
    else
        checkedDrawable.setBounds(BOUNDS, BOUNDS, BOUNDS, BOUNDS);

    // init focused state drawable (use normal color)
    Drawable focusedDrawable = new GradientDrawable(Orientation.BOTTOM_TOP, new int[] {
            normal, normal
    }).mutate();
    if (normal == Color.TRANSPARENT)
        focusedDrawable.setAlpha(0);
    else
        focusedDrawable.setBounds(BOUNDS, BOUNDS, BOUNDS, BOUNDS);

    // prepare state list (order of adding states is important!)
    StateListDrawable states = new StateListDrawable();
    states.addState(pressedState, clickedDrawable);
    if (!shouldFade) {
        states.addState(selectedState, clickedDrawable);
        states.addState(focusedState, focusedDrawable);
        states.addState(checkedState, checkedDrawable);
    }

    // add fade effect if applicable
    if (Build.VERSION.SDK_INT > Build.VERSION_CODES.GINGERBREAD_MR1) {
        if (shouldFade) {
            states.addState(new int[] {}, normalDrawable);
            states.setEnterFadeDuration(0);
            states.setExitFadeDuration(FADE_DURATION);
        } else {
            states.addState(activatedState, clickedDrawable);
            states.addState(new int[] {}, normalDrawable);
        }
    } else {
        states.addState(new int[] {}, normalDrawable);
    }

    return states;
}
 

/**
 * Similar to {@link #createBackgroundDrawable(int, int, int, boolean)} but with additional {@code original} drawable parameter.
 *
 * @param context Which context to use
 * @param normal Color normal state of the drawable to this color
 * @param clickedBackground Background color of the View that will show when view is clicked
 * @param shouldFade Set to true if the state list should have a fading effect
 * @param original This drawable will be contrasted to the {@code clickedBackground} color on press
 * @return The state list drawable that is in contrast with the on-click background color
 */
@SuppressLint({
        "InlinedApi", "NewApi"
})
public Drawable createContrastStateDrawable(Context context, int normal, int clickedBackground, boolean shouldFade, Drawable original) {
    if (original == null || original instanceof StateListDrawable) {
        if (original != null) {
            Log.i(LOG_TAG, "Original drawable is already a StateListDrawable");
            original = original.getCurrent();
        }

        // overridden in previous if clause, so check again
        if (original == null) {
            return null;
        }
    }

    // init state arrays
    int[] selectedState = new int[] {
            android.R.attr.state_selected
    };
    int[] pressedState = new int[] {
            android.R.attr.state_pressed
    };
    int[] checkedState = new int[] {
            android.R.attr.state_checked
    };
    int[] activatedState = new int[] {};
    if (Build.VERSION.SDK_INT > Build.VERSION_CODES.GINGERBREAD_MR1) {
        activatedState = new int[] {
                android.R.attr.state_activated
        };
    }

    Drawable normalStateDrawable = colorDrawable(context, original, normal);
    Drawable clickedStateDrawable = colorDrawable(context, original, getContrastColor(clickedBackground));
    Drawable checkedStateDrawable = colorDrawable(context, original, getContrastColor(clickedBackground));

    // prepare state list (order of adding states is important!)
    StateListDrawable states = new StateListDrawable();
    states.addState(pressedState, clickedStateDrawable);
    if (!shouldFade) {
        states.addState(selectedState, clickedStateDrawable);
        states.addState(checkedState, checkedStateDrawable);
    }

    // add fade effect if applicable
    if (Build.VERSION.SDK_INT > Build.VERSION_CODES.GINGERBREAD_MR1) {
        if (shouldFade) {
            states.addState(new int[] {}, normalStateDrawable);
            states.setEnterFadeDuration(0);
            states.setExitFadeDuration(FADE_DURATION);
        } else {
            states.addState(activatedState, clickedStateDrawable);
            states.addState(new int[] {}, normalStateDrawable);
        }
    } else {
        states.addState(new int[] {}, normalStateDrawable);
    }

    return states;
}