94 lines
3.7 KiB
Java
94 lines
3.7 KiB
Java
/*
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* Copyright (C) 2011 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.inputmethod.latin.utils;
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import android.view.View;
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import android.view.ViewGroup;
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import android.view.ViewGroup.MarginLayoutParams;
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import android.view.Window;
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import android.view.WindowManager;
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import android.widget.FrameLayout;
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import android.widget.LinearLayout;
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import android.widget.RelativeLayout;
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public final class ViewLayoutUtils {
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private ViewLayoutUtils() {
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// This utility class is not publicly instantiable.
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}
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public static MarginLayoutParams newLayoutParam(final ViewGroup placer, final int width,
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final int height) {
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if (placer instanceof FrameLayout) {
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return new FrameLayout.LayoutParams(width, height);
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} else if (placer instanceof RelativeLayout) {
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return new RelativeLayout.LayoutParams(width, height);
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} else if (placer == null) {
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throw new NullPointerException("placer is null");
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} else {
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throw new IllegalArgumentException("placer is neither FrameLayout nor RelativeLayout: "
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+ placer.getClass().getName());
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}
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}
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public static void placeViewAt(final View view, final int x, final int y, final int w,
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final int h) {
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final ViewGroup.LayoutParams lp = view.getLayoutParams();
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if (lp instanceof MarginLayoutParams) {
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final MarginLayoutParams marginLayoutParams = (MarginLayoutParams)lp;
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marginLayoutParams.width = w;
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marginLayoutParams.height = h;
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marginLayoutParams.setMargins(x, y, 0, 0);
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}
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}
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public static void updateLayoutHeightOf(final Window window, final int layoutHeight) {
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final WindowManager.LayoutParams params = window.getAttributes();
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if (params != null && params.height != layoutHeight) {
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params.height = layoutHeight;
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window.setAttributes(params);
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}
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}
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public static void updateLayoutHeightOf(final View view, final int layoutHeight) {
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final ViewGroup.LayoutParams params = view.getLayoutParams();
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if (params != null && params.height != layoutHeight) {
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params.height = layoutHeight;
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view.setLayoutParams(params);
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}
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}
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public static void updateLayoutGravityOf(final View view, final int layoutGravity) {
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final ViewGroup.LayoutParams lp = view.getLayoutParams();
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if (lp instanceof LinearLayout.LayoutParams) {
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final LinearLayout.LayoutParams params = (LinearLayout.LayoutParams)lp;
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if (params.gravity != layoutGravity) {
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params.gravity = layoutGravity;
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view.setLayoutParams(params);
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}
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} else if (lp instanceof FrameLayout.LayoutParams) {
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final FrameLayout.LayoutParams params = (FrameLayout.LayoutParams)lp;
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if (params.gravity != layoutGravity) {
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params.gravity = layoutGravity;
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view.setLayoutParams(params);
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}
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} else {
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throw new IllegalArgumentException("Layout parameter doesn't have gravity: "
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+ lp.getClass().getName());
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}
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}
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}
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