Returns the width as specified in the LayoutParams - Android User Interface

Android examples for User Interface:Layout

  1. HOME
  2. Android
  3. User Interface
  4. Layout

Description

Returns the width as specified in the LayoutParams

Demo Code

/*//from   w  w  w  .  j  a  v  a2  s. c o  m
 * Copyright (C) 2012 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
import android.content.res.Resources;
import android.graphics.Outline;
import android.graphics.Paint;
import android.util.TypedValue;
import android.view.View;
import android.view.ViewGroup;
import android.view.ViewOutlineProvider;
import android.widget.ListView;
import android.widget.TextView;
import com.android.phone.common.R;

public class Main{
    /**
     * Returns the width as specified in the LayoutParams
     * @throws IllegalStateException Thrown if the view's width is unknown before a layout pass
     * s
     */
    public static int getConstantPreLayoutWidth(View view) {
        // We haven't been layed out yet, so get the size from the LayoutParams
        final ViewGroup.LayoutParams p = view.getLayoutParams();
        if (p.width < 0) {
            throw new IllegalStateException(
                    "Expecting view's width to be a constant rather "
                            + "than a result of the layout pass");
        }
        return p.width;
    }
}

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