Java Code Examples for android.view.View#setPadding()

/**
 * Sets the background for a view while preserving its current padding. If the background drawable
 * has its own padding, that padding will be added to the current padding.
 *
 * @param view               View to receive the new background.
 * @param backgroundDrawable Drawable to set as new background.
 */
public static void setBackgroundAndKeepPadding(View view, Drawable backgroundDrawable) {
	Rect drawablePadding = new Rect();
	backgroundDrawable.getPadding(drawablePadding);
	int top = view.getPaddingTop() + drawablePadding.top;
	int left = view.getPaddingLeft() + drawablePadding.left;
	int right = view.getPaddingRight() + drawablePadding.right;
	int bottom = view.getPaddingBottom() + drawablePadding.bottom;
	if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN) {
		//noinspection deprecation
		view.setBackgroundDrawable(backgroundDrawable);
	} else {
		view.setBackground(backgroundDrawable);
	}
	view.setPadding(left, top, right, bottom);
}
 

public SmartViewHolder(View itemView, AdapterView.OnItemClickListener mListener) {
    super(itemView);
    this.mListener = mListener;
    itemView.setOnClickListener(this);

    /*
     * 设置水波纹背景
     */
    if (itemView.getBackground() == null) {
        TypedValue typedValue = new TypedValue();
        Resources.Theme theme = itemView.getContext().getTheme();
        int top = itemView.getPaddingTop();
        int bottom = itemView.getPaddingBottom();
        int left = itemView.getPaddingLeft();
        int right = itemView.getPaddingRight();
        if (theme.resolveAttribute(android.R.attr.selectableItemBackground, typedValue, true)) {
            itemView.setBackgroundResource(typedValue.resourceId);
        }
        itemView.setPadding(left, top, right, bottom);
    }
}
 

@Keep
public void setTopPadding(float value) {
    topPadding = value;
    if (fragment != null && getParent() != null) {
        View view = fragment.getFragmentView();
        int additionalPadding = 0;
        if (additionalContextView != null && additionalContextView.getVisibility() == VISIBLE && additionalContextView.getParent() != null) {
            additionalPadding = AndroidUtilities.dp(36);
        }
        if (view != null && getParent() != null) {
            view.setPadding(0, (int) topPadding + additionalPadding, 0, 0);
        }
        if (isLocation && additionalContextView != null) {
            ((LayoutParams) additionalContextView.getLayoutParams()).topMargin = -AndroidUtilities.dp(36) - (int) topPadding;
        }
    }
}
 

public static void autoPadding(View view)
{
    Object tag = view.getTag(R.id.id_tag_autolayout_padding);
    if (tag != null) return;
    view.setTag(R.id.id_tag_autolayout_padding, "Just Identify");

    int l = view.getPaddingLeft();
    int t = view.getPaddingTop();
    int r = view.getPaddingRight();
    int b = view.getPaddingBottom();

    l = getPercentWidthSize(l);
    t = getPercentHeightSize(t);
    r = getPercentWidthSize(r);
    b = getPercentHeightSize(b);

    view.setPadding(l, t, r, b);
}
 

private static void updateTopBottomPadding(View view, int topPadding, int bottomPadding) {
    if (ViewCompat.isPaddingRelative(view)) {
        ViewCompat.setPaddingRelative(view,
                ViewCompat.getPaddingStart(view), topPadding,
                ViewCompat.getPaddingEnd(view), bottomPadding);
    } else {
        view.setPadding(view.getPaddingLeft(), topPadding,
                view.getPaddingRight(), bottomPadding);
    }
}
 

static void hide(View view) {
    view.setPadding(0, 0, 0, 0);

    ViewGroup.LayoutParams lparam = view.getLayoutParams();
    lparam.width = 0;
    lparam.height = 0;
    if (lparam instanceof ConstraintLayout.LayoutParams)
        ((ConstraintLayout.LayoutParams) lparam).setMargins(0, 0, 0, 0);
    view.setLayoutParams(lparam);
}
 

public static void appendStatusBarPadding(Context context, View view) {
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
        if (view != null) {
            int statusBarHeight = getStatusBarHeight(context);
            ViewGroup.LayoutParams lp = view.getLayoutParams();
            if (lp != null && lp.height > 0) {
                lp.height += statusBarHeight;//增高
            }
            view.setPadding(view.getPaddingLeft(), view.getPaddingTop() + statusBarHeight,
                    view.getPaddingRight(), view.getPaddingBottom());
        }
    }
}
 

public static void setPadding(View view, int left, int top, int right, int bottom) {
    int scaledLeft = scaleValue(view.getContext(), left);
    int scaledTop = scaleValue(view.getContext(), top);
    int scaledRight = scaleValue(view.getContext(), right);
    int scaledBottom = scaleValue(view.getContext(), bottom);
    view.setPadding(scaledLeft, scaledTop, scaledRight, scaledBottom);
}
 

public PDFLineSeparatorView(Context context) {
    super(context);

    View separatorLine = new View(context);
    LinearLayout.LayoutParams separatorLayoutParam = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, 1);
    separatorLine.setPadding(0, 5, 0, 5);
    separatorLine.setLayoutParams(separatorLayoutParam);

    super.setView(separatorLine);
}
 

/**
 *  增加View的paddingTop,增加的值为状态栏高度 (智能判断，并设置高度)
 */
public static void setPaddingSmart(Context context, View view) {
    if (Build.VERSION.SDK_INT >= MIN_API) {
        ViewGroup.LayoutParams lp = view.getLayoutParams();
        if (lp != null && lp.height > 0) {
            lp.height += getStatusBarHeight(context);//增高
        }
        view.setPadding(view.getPaddingLeft(), view.getPaddingTop() + getStatusBarHeight(context),
                view.getPaddingRight(), view.getPaddingBottom());
    }
}
 

public static void setHeaderUserSelector(View headerCornerTab) {
	if (headerCornerTab == null) {
		return;
	}
	Theme theme = ThemeUtil.createTheme(headerCornerTab.getContext());
	EditText etFilterName = (EditText)headerCornerTab.findViewById(R.id.etFilterName);
	Button btnSearch = (Button)headerCornerTab.findViewById(R.id.btnSearch);
	headerCornerTab.setBackgroundDrawable(theme.getDrawable("bg_header_corner_tab"));
	int padding8 = theme.dip2px(8);
	headerCornerTab.setPadding(padding8, padding8, padding8, padding8);
	etFilterName.setBackgroundDrawable(theme.getDrawable("bg_input_frame_left_half"));
	btnSearch.setBackgroundDrawable(theme.getDrawable("selector_btn_search"));
}
 

public void measureChild(View child) {
    CellLayout.LayoutParams lp = (CellLayout.LayoutParams) child.getLayoutParams();
    if (!lp.isFullscreen) {
        final DeviceProfile profile = mLauncher.getDeviceProfile();

        if (child instanceof LauncherAppWidgetHostView) {
            lp.setup(mCellWidth, mCellHeight, invertLayoutHorizontally(), mCountX,
                    profile.appWidgetScale.x, profile.appWidgetScale.y);
            // Widgets have their own padding
        } else {
            lp.setup(mCellWidth, mCellHeight, invertLayoutHorizontally(), mCountX);
            // Center the icon/folder
            int cHeight = getCellContentHeight();
            int cellPaddingY = (int) Math.max(0, ((lp.height - cHeight) / 2f));
            int cellPaddingX = (int) (profile.edgeMarginPx / 2f);
            child.setPadding(cellPaddingX, cellPaddingY, cellPaddingX, 0);
        }
    } else {
        lp.x = 0;
        lp.y = 0;
        lp.width = getMeasuredWidth();
        lp.height = getMeasuredHeight();
    }
    int childWidthMeasureSpec = MeasureSpec.makeMeasureSpec(lp.width, MeasureSpec.EXACTLY);
    int childheightMeasureSpec = MeasureSpec.makeMeasureSpec(lp.height, MeasureSpec.EXACTLY);
    child.measure(childWidthMeasureSpec, childheightMeasureSpec);
}
 

@Override
protected void onBindView(final View view) {
    super.onBindView(view);
    // On pre-L devices, PreferenceCategoryWithButtonStyle is reused for PreferenceCategory,
    // which needs a top padding of 16dp; we don't want this top padding for
    // PreferenceCategoryWithButton views.
    view.setPadding(view.getPaddingLeft(), 0, view.getPaddingRight(), view.getPaddingBottom());
    View button = view.findViewById(android.R.id.icon);
    button.setOnClickListener(this);

    if (!TextUtils.isEmpty(mContentDescription)) {
        button.setContentDescription(mContentDescription);
    }
}
 

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    View view = super.onCreateView(inflater, container, savedInstanceState);
    int horizontalMargin = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 2, getResources().getDisplayMetrics());
    int verticalMargin = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 2, getResources().getDisplayMetrics());
    int topMargin = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 56, getResources().getDisplayMetrics());

    if (view != null) {
        view.setPadding(horizontalMargin, topMargin, horizontalMargin, verticalMargin);
    }
    return view;
}
 

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    View view = super.onCreateView(inflater, container, savedInstanceState);
    int horizontalMargin = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 2, getResources().getDisplayMetrics());
    int verticalMargin = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 2, getResources().getDisplayMetrics());
    int topMargin = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 56, getResources().getDisplayMetrics());

    if (view != null) {
        view.setPadding(horizontalMargin, topMargin, horizontalMargin, verticalMargin);
    }
    return view;
}
 

/** 增加View的高度以及paddingTop,增加的值为状态栏高度.一般是在沉浸式全屏给ToolBar用的 */
public static void setHeightAndPadding(Context context, View view) {
    if (Build.VERSION.SDK_INT >= MIN_API) {
        ViewGroup.LayoutParams lp = view.getLayoutParams();
        lp.height += getStatusBarHeight(context);//增高
        view.setPadding(view.getPaddingLeft(), view.getPaddingTop() + getStatusBarHeight(context),
                view.getPaddingRight(), view.getPaddingBottom());
    }
}
 

/**
 * 添加SnackBar视图
 * <p>在{@link #show()}之后调用</p>
 *
 * @param layoutId 布局文件
 * @param params   布局参数
 */
public static void addView(@LayoutRes final int layoutId, @NonNull final ViewGroup.LayoutParams params) {
    final View view = getView();
    if (view != null) {
        view.setPadding(0, 0, 0, 0);
        Snackbar.SnackbarLayout layout = (Snackbar.SnackbarLayout) view;
        View child = LayoutInflater.from(view.getContext()).inflate(layoutId, null);
        layout.addView(child, -1, params);
    }
}
 

/** 增加View的paddingTop,增加的值为状态栏高度 (智能判断，并设置高度)*/
public static void setPaddingSmart(Context context, View view) {
    if (Build.VERSION.SDK_INT >= MIN_API) {
        ViewGroup.LayoutParams lp = view.getLayoutParams();
        if (lp != null && lp.height > 0) {
            lp.height += getStatusBarHeight(context);//增高
        }
        view.setPadding(view.getPaddingLeft(), view.getPaddingTop() + getStatusBarHeight(context),
                view.getPaddingRight(), view.getPaddingBottom());
    }
}
 

@Override
public void apply(View root, ViewGroup rootParent, OnClickHandler handler) {
    final View target = root.findViewById(viewId);
    if (target == null) return;
    target.setPadding(left, top, right, bottom);
}
 

/**
 * Applies the dialog's bottom padding to the view of a specific area.
 *
 * @param area The area, the view, the padding should be applied to, corresponds to, as an instance
 *             of the class {@link Area}. The area may not be null
 * @param view The view, the padding should be applied to, as an instance of the class {@link View}.
 *             The view may not be null
 */
private void applyDialogPaddingBottom(@NonNull final Area area, @NonNull final View view) {
    if (area != Area.HEADER && area != Area.BUTTON_BAR) {
        view.setPadding(view.getPaddingLeft(), view.getPaddingTop(), view.getPaddingRight(),
                dialogPadding[3]);
    }
}