ActionBarContextView.java revision a7db03705f53c59e63e63c2e67e2db78f8226dcc
189e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell/* 289e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell * Copyright (C) 2010 The Android Open Source Project 389e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell * 489e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell * Licensed under the Apache License, Version 2.0 (the "License"); 589e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell * you may not use this file except in compliance with the License. 689e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell * You may obtain a copy of the License at 789e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell * 889e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell * http://www.apache.org/licenses/LICENSE-2.0 989e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell * 1089e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell * Unless required by applicable law or agreed to in writing, software 1189e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell * distributed under the License is distributed on an "AS IS" BASIS, 1289e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 1389e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell * See the License for the specific language governing permissions and 1489e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell * limitations under the License. 1589e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell */ 1689e0645b4157961e8c465eb9c819f965fdb453d8Adam Powellpackage com.android.internal.widget; 1789e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell 1889e0645b4157961e8c465eb9c819f965fdb453d8Adam Powellimport com.android.internal.R; 1989e0645b4157961e8c465eb9c819f965fdb453d8Adam Powellimport com.android.internal.app.ActionBarImpl; 2089e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell 2189e0645b4157961e8c465eb9c819f965fdb453d8Adam Powellimport android.app.ActionBar; 2289e0645b4157961e8c465eb9c819f965fdb453d8Adam Powellimport android.content.Context; 2389e0645b4157961e8c465eb9c819f965fdb453d8Adam Powellimport android.content.res.TypedArray; 2489e0645b4157961e8c465eb9c819f965fdb453d8Adam Powellimport android.graphics.drawable.Drawable; 2589e0645b4157961e8c465eb9c819f965fdb453d8Adam Powellimport android.util.AttributeSet; 2689e0645b4157961e8c465eb9c819f965fdb453d8Adam Powellimport android.view.LayoutInflater; 2789e0645b4157961e8c465eb9c819f965fdb453d8Adam Powellimport android.view.Menu; 2889e0645b4157961e8c465eb9c819f965fdb453d8Adam Powellimport android.view.MenuItem; 2989e0645b4157961e8c465eb9c819f965fdb453d8Adam Powellimport android.view.View; 3089e0645b4157961e8c465eb9c819f965fdb453d8Adam Powellimport android.view.ViewGroup; 31a7db03705f53c59e63e63c2e67e2db78f8226dccAdam Powellimport android.view.View.MeasureSpec; 32a7db03705f53c59e63e63c2e67e2db78f8226dccAdam Powellimport android.view.ViewGroup.LayoutParams; 3389e0645b4157961e8c465eb9c819f965fdb453d8Adam Powellimport android.widget.ImageButton; 340e94b5151d817e600a888448a662208b29b5ef46Adam Powellimport android.widget.LinearLayout; 3589e0645b4157961e8c465eb9c819f965fdb453d8Adam Powellimport android.widget.TextView; 3689e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell 3789e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell/** 3889e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell * @hide 3989e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell */ 4089e0645b4157961e8c465eb9c819f965fdb453d8Adam Powellpublic class ActionBarContextView extends ViewGroup { 4189e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell // TODO: This must be defined in the default theme 4289e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell private static final int CONTENT_HEIGHT_DIP = 50; 4389e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell 4489e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell private int mItemPadding; 4589e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell private int mItemMargin; 4689e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell private int mContentHeight; 4789e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell 4889e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell private CharSequence mTitle; 4989e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell private CharSequence mSubtitle; 5089e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell 5189e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell private ImageButton mCloseButton; 5289e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell private View mCustomView; 530e94b5151d817e600a888448a662208b29b5ef46Adam Powell private LinearLayout mTitleLayout; 5489e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell private TextView mTitleView; 550e94b5151d817e600a888448a662208b29b5ef46Adam Powell private TextView mSubtitleView; 5689e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell private Drawable mCloseDrawable; 5789e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell 5889e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell public ActionBarContextView(Context context) { 5989e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell this(context, null, 0); 6089e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell } 6189e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell 6289e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell public ActionBarContextView(Context context, AttributeSet attrs) { 6389e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell this(context, attrs, 0); 6489e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell } 6589e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell 6689e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell public ActionBarContextView(Context context, AttributeSet attrs, int defStyle) { 6789e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell super(context, attrs, defStyle); 6889e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell 6989e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell TypedArray a = context.obtainStyledAttributes(attrs, 7089e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell com.android.internal.R.styleable.Theme); 7189e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell mItemPadding = a.getDimensionPixelOffset( 7289e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell com.android.internal.R.styleable.Theme_actionButtonPadding, 0); 7389e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell setBackgroundDrawable(a.getDrawable( 7489e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell com.android.internal.R.styleable.Theme_actionBarContextBackground)); 7589e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell mCloseDrawable = a.getDrawable( 7689e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell com.android.internal.R.styleable.Theme_actionBarCloseContextDrawable); 7789e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell mItemMargin = mItemPadding / 2; 7889e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell 7989e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell mContentHeight = CONTENT_HEIGHT_DIP; 8089e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell a.recycle(); 8189e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell } 8289e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell 8389e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell public void setCustomView(View view) { 8489e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell if (mCustomView != null) { 8589e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell removeView(mCustomView); 8689e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell } 8789e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell mCustomView = view; 880e94b5151d817e600a888448a662208b29b5ef46Adam Powell if (mTitleLayout != null) { 890e94b5151d817e600a888448a662208b29b5ef46Adam Powell removeView(mTitleLayout); 900e94b5151d817e600a888448a662208b29b5ef46Adam Powell mTitleLayout = null; 9189e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell } 9289e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell if (view != null) { 9389e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell addView(view); 9489e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell } 9589e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell requestLayout(); 9689e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell } 970e94b5151d817e600a888448a662208b29b5ef46Adam Powell 9889e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell public void setTitle(CharSequence title) { 9989e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell mTitle = title; 1000e94b5151d817e600a888448a662208b29b5ef46Adam Powell initTitle(); 1010e94b5151d817e600a888448a662208b29b5ef46Adam Powell } 1020e94b5151d817e600a888448a662208b29b5ef46Adam Powell 1030e94b5151d817e600a888448a662208b29b5ef46Adam Powell public void setSubtitle(CharSequence subtitle) { 1040e94b5151d817e600a888448a662208b29b5ef46Adam Powell mSubtitle = subtitle; 1050e94b5151d817e600a888448a662208b29b5ef46Adam Powell initTitle(); 1060e94b5151d817e600a888448a662208b29b5ef46Adam Powell } 1070e94b5151d817e600a888448a662208b29b5ef46Adam Powell 1080e94b5151d817e600a888448a662208b29b5ef46Adam Powell private void initTitle() { 1090e94b5151d817e600a888448a662208b29b5ef46Adam Powell if (mTitleLayout == null) { 11089e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell LayoutInflater inflater = LayoutInflater.from(getContext()); 1110e94b5151d817e600a888448a662208b29b5ef46Adam Powell mTitleLayout = (LinearLayout) inflater.inflate(R.layout.action_bar_title_item, null); 1120e94b5151d817e600a888448a662208b29b5ef46Adam Powell mTitleView = (TextView) mTitleLayout.findViewById(R.id.action_bar_title); 1130e94b5151d817e600a888448a662208b29b5ef46Adam Powell mSubtitleView = (TextView) mTitleLayout.findViewById(R.id.action_bar_subtitle); 1140e94b5151d817e600a888448a662208b29b5ef46Adam Powell if (mTitle != null) { 1150e94b5151d817e600a888448a662208b29b5ef46Adam Powell mTitleView.setText(mTitle); 1160e94b5151d817e600a888448a662208b29b5ef46Adam Powell } 1170e94b5151d817e600a888448a662208b29b5ef46Adam Powell if (mSubtitle != null) { 1180e94b5151d817e600a888448a662208b29b5ef46Adam Powell mSubtitleView.setText(mSubtitle); 11989e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell } 1200e94b5151d817e600a888448a662208b29b5ef46Adam Powell addView(mTitleLayout); 12189e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell } else { 1220e94b5151d817e600a888448a662208b29b5ef46Adam Powell mTitleView.setText(mTitle); 1230e94b5151d817e600a888448a662208b29b5ef46Adam Powell mSubtitleView.setText(mSubtitle); 1240e94b5151d817e600a888448a662208b29b5ef46Adam Powell if (mTitleLayout.getParent() == null) { 1250e94b5151d817e600a888448a662208b29b5ef46Adam Powell addView(mTitleLayout); 12689e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell } 12789e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell } 12889e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell } 1290e94b5151d817e600a888448a662208b29b5ef46Adam Powell 13089e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell public void initForMode(final ActionBar.ContextMode mode) { 13189e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell final ActionBarImpl.ContextMode implMode = (ActionBarImpl.ContextMode) mode; 13289e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell 13389e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell if (mCloseButton == null) { 13489e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell mCloseButton = new ImageButton(getContext()); 13589e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell mCloseButton.setImageDrawable(mCloseDrawable); 13689e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell mCloseButton.setBackgroundDrawable(null); 13789e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell mCloseButton.setOnClickListener(new OnClickListener() { 13889e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell public void onClick(View v) { 13989e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell mode.finish(); 14089e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell } 14189e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell }); 14289e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell } 14389e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell addView(mCloseButton); 14489e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell 14589e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell final Context context = getContext(); 14689e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell final Menu menu = mode.getMenu(); 14789e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell final int itemCount = menu.size(); 14889e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell for (int i = 0; i < itemCount; i++) { 14989e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell final MenuItem item = menu.getItem(i); 15089e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell final ImageButton button = new ImageButton(context, null, 15189e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell com.android.internal.R.attr.actionButtonStyle); 15289e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell button.setClickable(true); 15389e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell button.setFocusable(true); 15489e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell button.setImageDrawable(item.getIcon()); 15589e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell button.setId(item.getItemId()); 15689e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell button.setVisibility(item.isVisible() ? VISIBLE : GONE); 15789e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell button.setEnabled(item.isEnabled()); 15889e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell 15989e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell button.setOnClickListener(new OnClickListener() { 16089e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell public void onClick(View v) { 16189e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell implMode.dispatchOnContextItemClicked(item); 16289e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell } 16389e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell }); 1640e94b5151d817e600a888448a662208b29b5ef46Adam Powell 16589e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell addView(button); 16689e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell } 16789e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell requestLayout(); 16889e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell } 1690e94b5151d817e600a888448a662208b29b5ef46Adam Powell 17089e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell public void closeMode() { 17189e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell removeAllViews(); 17289e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell mCustomView = null; 17389e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell } 1740e94b5151d817e600a888448a662208b29b5ef46Adam Powell 17589e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell @Override 176a7db03705f53c59e63e63c2e67e2db78f8226dccAdam Powell protected LayoutParams generateDefaultLayoutParams() { 177a7db03705f53c59e63e63c2e67e2db78f8226dccAdam Powell // Used by custom views if they don't supply layout params. Everything else 178a7db03705f53c59e63e63c2e67e2db78f8226dccAdam Powell // added to an ActionBarContextView should have them already. 179a7db03705f53c59e63e63c2e67e2db78f8226dccAdam Powell return new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT); 180a7db03705f53c59e63e63c2e67e2db78f8226dccAdam Powell } 181a7db03705f53c59e63e63c2e67e2db78f8226dccAdam Powell 182a7db03705f53c59e63e63c2e67e2db78f8226dccAdam Powell @Override 18389e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 18489e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell final int widthMode = MeasureSpec.getMode(widthMeasureSpec); 18589e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell if (widthMode != MeasureSpec.EXACTLY) { 18689e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell throw new IllegalStateException(getClass().getSimpleName() + " can only be used " + 18789e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell "with android:layout_width=\"match_parent\" (or fill_parent)"); 18889e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell } 18989e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell 19089e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell final int heightMode = MeasureSpec.getMode(heightMeasureSpec); 19189e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell if (heightMode != MeasureSpec.AT_MOST) { 19289e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell throw new IllegalStateException(getClass().getSimpleName() + " can only be used " + 19389e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell "with android:layout_height=\"wrap_content\""); 19489e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell } 19589e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell 19689e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell final int contentWidth = MeasureSpec.getSize(widthMeasureSpec); 19789e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell final int itemMargin = mItemPadding; 19889e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell 19989e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell int availableWidth = contentWidth - getPaddingLeft() - getPaddingRight(); 20089e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell final int height = mContentHeight - getPaddingTop() - getPaddingBottom(); 20189e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell final int childSpecHeight = MeasureSpec.makeMeasureSpec(height, MeasureSpec.AT_MOST); 20289e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell 20389e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell if (mCloseButton != null) { 20489e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell availableWidth = measureChildView(mCloseButton, availableWidth, 20589e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell childSpecHeight, itemMargin); 20689e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell } 20789e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell 2080e94b5151d817e600a888448a662208b29b5ef46Adam Powell if (mTitleLayout != null && mCustomView == null) { 2090e94b5151d817e600a888448a662208b29b5ef46Adam Powell availableWidth = measureChildView(mTitleLayout, availableWidth, 21089e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell childSpecHeight, itemMargin); 21189e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell } 21289e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell 21389e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell final int childCount = getChildCount(); 21489e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell for (int i = 0; i < childCount; i++) { 21589e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell final View child = getChildAt(i); 2160e94b5151d817e600a888448a662208b29b5ef46Adam Powell if (child == mCloseButton || child == mTitleLayout || child == mCustomView) { 21789e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell continue; 21889e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell } 21989e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell 22089e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell availableWidth = measureChildView(child, availableWidth, childSpecHeight, itemMargin); 22189e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell } 22289e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell 22389e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell if (mCustomView != null) { 224a7db03705f53c59e63e63c2e67e2db78f8226dccAdam Powell LayoutParams lp = mCustomView.getLayoutParams(); 225a7db03705f53c59e63e63c2e67e2db78f8226dccAdam Powell final int customWidthMode = lp.width != LayoutParams.WRAP_CONTENT ? 226a7db03705f53c59e63e63c2e67e2db78f8226dccAdam Powell MeasureSpec.EXACTLY : MeasureSpec.AT_MOST; 227a7db03705f53c59e63e63c2e67e2db78f8226dccAdam Powell final int customWidth = lp.width >= 0 ? 228a7db03705f53c59e63e63c2e67e2db78f8226dccAdam Powell Math.min(lp.width, availableWidth) : availableWidth; 229a7db03705f53c59e63e63c2e67e2db78f8226dccAdam Powell final int customHeightMode = lp.height != LayoutParams.WRAP_CONTENT ? 230a7db03705f53c59e63e63c2e67e2db78f8226dccAdam Powell MeasureSpec.EXACTLY : MeasureSpec.AT_MOST; 231a7db03705f53c59e63e63c2e67e2db78f8226dccAdam Powell final int customHeight = lp.height >= 0 ? 232a7db03705f53c59e63e63c2e67e2db78f8226dccAdam Powell Math.min(lp.height, height) : height; 233a7db03705f53c59e63e63c2e67e2db78f8226dccAdam Powell mCustomView.measure(MeasureSpec.makeMeasureSpec(customWidth, customWidthMode), 234a7db03705f53c59e63e63c2e67e2db78f8226dccAdam Powell MeasureSpec.makeMeasureSpec(customHeight, customHeightMode)); 23589e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell } 23689e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell 23789e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell setMeasuredDimension(contentWidth, mContentHeight); 23889e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell } 23989e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell 24089e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell @Override 24189e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell protected void onLayout(boolean changed, int l, int t, int r, int b) { 24289e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell int x = getPaddingLeft(); 24389e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell final int y = getPaddingTop(); 24489e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell final int contentHeight = b - t - getPaddingTop() - getPaddingBottom(); 24589e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell final int itemMargin = mItemPadding; 24689e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell 24789e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell if (mCloseButton != null && mCloseButton.getVisibility() != GONE) { 24889e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell x += positionChild(mCloseButton, x, y, contentHeight); 24989e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell } 25089e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell 2510e94b5151d817e600a888448a662208b29b5ef46Adam Powell if (mTitleLayout != null && mCustomView == null) { 2520e94b5151d817e600a888448a662208b29b5ef46Adam Powell x += positionChild(mTitleLayout, x, y, contentHeight) + itemMargin; 25389e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell } 25489e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell 25589e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell if (mCustomView != null) { 25689e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell x += positionChild(mCustomView, x, y, contentHeight) + itemMargin; 25789e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell } 25889e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell 25989e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell x = r - l - getPaddingRight(); 26089e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell 26189e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell final int childCount = getChildCount(); 26289e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell for (int i = 0; i < childCount; i++) { 26389e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell final View child = getChildAt(i); 2640e94b5151d817e600a888448a662208b29b5ef46Adam Powell if (child == mCloseButton || child == mTitleLayout || child == mCustomView) { 26589e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell continue; 26689e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell } 26789e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell 26889e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell x -= positionChildInverse(child, x, y, contentHeight) + itemMargin; 26989e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell } 27089e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell } 27189e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell 27289e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell private int measureChildView(View child, int availableWidth, int childSpecHeight, int spacing) { 27389e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell child.measure(MeasureSpec.makeMeasureSpec(availableWidth, MeasureSpec.AT_MOST), 27489e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell childSpecHeight); 27589e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell 27689e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell availableWidth -= child.getMeasuredWidth(); 27789e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell availableWidth -= spacing; 27889e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell 27989e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell return availableWidth; 28089e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell } 28189e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell 28289e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell private int positionChild(View child, int x, int y, int contentHeight) { 28389e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell int childWidth = child.getMeasuredWidth(); 28489e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell int childHeight = child.getMeasuredHeight(); 28589e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell int childTop = y + (contentHeight - childHeight) / 2; 28689e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell 28789e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell child.layout(x, childTop, x + childWidth, childTop + childHeight); 28889e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell 28989e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell return childWidth; 29089e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell } 29189e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell 29289e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell private int positionChildInverse(View child, int x, int y, int contentHeight) { 29389e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell int childWidth = child.getMeasuredWidth(); 29489e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell int childHeight = child.getMeasuredHeight(); 29589e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell int childTop = y + (contentHeight - childHeight) / 2; 29689e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell 29789e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell child.layout(x - childWidth, childTop, x, childTop + childHeight); 29889e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell 29989e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell return childWidth; 30089e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell } 30189e0645b4157961e8c465eb9c819f965fdb453d8Adam Powell} 302