Java tutorial
/* * Copyright (c) 2013 Cangol * <p> * 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 * <p> * http://www.apache.org/licenses/LICENSE-2.0 * <p> * 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. */ package mobi.cangol.mobile.navigation; import android.app.Activity; import android.content.Context; import android.content.res.Configuration; import android.content.res.Resources; import android.content.res.TypedArray; import android.graphics.Color; import android.graphics.Rect; import android.os.Build; import android.support.v4.widget.DrawerLayout; import android.util.AttributeSet; import android.util.DisplayMetrics; import android.util.Log; import android.view.Display; import android.view.MotionEvent; import android.view.Surface; import android.view.View; import android.view.ViewGroup; import android.view.WindowManager; import android.widget.FrameLayout; import java.lang.reflect.Method; import mobi.cangol.mobile.uiframe.R; public class SlidingMenuLayout extends PagerEnabledSlidingPaneLayout { private FrameLayout mContentView; private FrameLayout mMenuView; private float mMenuWidth = 0.75f; private boolean isFloatActionBarEnabled; private boolean mMenuEnable = true; public SlidingMenuLayout(Context context, AttributeSet attrs) { super(context, attrs); mMenuView = new FrameLayout(context); mContentView = new FrameLayout(context); int width = (int) (mMenuWidth * context.getResources().getDisplayMetrics().widthPixels); ViewGroup.LayoutParams lp1 = new ViewGroup.LayoutParams(width, LayoutParams.MATCH_PARENT); mMenuView.setId(R.id.menu_view); this.addView(mMenuView, lp1); ViewGroup.LayoutParams lp2 = new ViewGroup.LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT); mContentView.setId(R.id.content_view); this.addView(mContentView, lp2); mContentView.setOnTouchListener(new OnTouchListener() { @Override public boolean onTouch(View v, MotionEvent event) { return true; } }); this.setSliderFadeColor(Color.TRANSPARENT); } public int getMenuFrameId() { return mMenuView.getId(); } public int getContentFrameId() { return mContentView.getId(); } public ViewGroup getMenuView() { return mMenuView; } public ViewGroup getContentView() { return mContentView; } public void setContentView(View v) { mContentView.removeAllViews(); mContentView.addView(v); } @Override public void onConfigurationChanged(Configuration newConfig) { super.onConfigurationChanged(newConfig); } public void showMenu(boolean show) { if (show) { this.openPane(); } else { this.closePane(); } } public boolean isShowMenu() { return this.isOpen(); } public void setMenuEnable(boolean enable) { mMenuEnable = enable; } @Override public boolean onInterceptTouchEvent(MotionEvent ev) { if (mMenuEnable) { return super.onInterceptTouchEvent(ev); } return false; } @Override public boolean onTouchEvent(MotionEvent ev) { if (mMenuEnable) { return super.onTouchEvent(ev); } return false; } @Override protected boolean fitSystemWindows(Rect insets) { if (isFloatActionBarEnabled) { fitPadding(insets); fitDecorChild(this); } return true; } private void fitDecorChild(View view) { ViewGroup contentView = (ViewGroup) view.findViewById(R.id.actionbar_content_view); if (contentView != null) { ViewGroup decorChild = (ViewGroup) contentView.getChildAt(0); if (decorChild != null) { if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) { WindowManager manager = (WindowManager) getContext().getSystemService(Context.WINDOW_SERVICE); FrameLayout.LayoutParams layoutParams = (FrameLayout.LayoutParams) decorChild.getLayoutParams(); switch (manager.getDefaultDisplay().getRotation()) { case Surface.ROTATION_90: layoutParams.rightMargin = 0; break; case Surface.ROTATION_180: layoutParams.topMargin = 0; break; case Surface.ROTATION_270: layoutParams.leftMargin = 0; break; default: layoutParams.bottomMargin = 0; } decorChild.setLayoutParams(layoutParams); } } } } private void fitPadding(Rect rect) { boolean hasNavigationBar = checkDeviceHasNavigationBar(); if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP && hasNavigationBar) { WindowManager manager = (WindowManager) getContext().getSystemService(Context.WINDOW_SERVICE); switch (manager.getDefaultDisplay().getRotation()) { case Surface.ROTATION_90: rect.right += getNavBarWidth(); break; case Surface.ROTATION_180: rect.top += getNavBarHeight(); break; case Surface.ROTATION_270: rect.left += getNavBarWidth(); break; default: rect.bottom += getNavBarHeight(); } } mContentView.setPadding(rect.left, rect.top, rect.right, rect.bottom); mMenuView.setPadding(rect.left, rect.top, rect.right, rect.bottom); } /** * ?? * @return */ private boolean checkDeviceHasNavigationBar() { if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) { WindowManager windowManager = (WindowManager) getContext().getSystemService(Context.WINDOW_SERVICE); Display display = windowManager.getDefaultDisplay(); DisplayMetrics realDisplayMetrics = new DisplayMetrics(); display.getRealMetrics(realDisplayMetrics); int realHeight = realDisplayMetrics.heightPixels; int realWidth = realDisplayMetrics.widthPixels; DisplayMetrics displayMetrics = new DisplayMetrics(); display.getMetrics(displayMetrics); int displayHeight = displayMetrics.heightPixels; int displayWidth = displayMetrics.widthPixels; return (realWidth - displayWidth) > 0 || (realHeight - displayHeight) > 0; } else { boolean hasNavigationBar = false; Resources resources = getContext().getResources(); int id = resources.getIdentifier("config_showNavigationBar", "bool", "android"); if (id > 0) { hasNavigationBar = resources.getBoolean(id); } try { Class systemPropertiesClass = Class.forName("android.os.SystemProperties"); Method m = systemPropertiesClass.getMethod("get", String.class); String navBarOverride = (String) m.invoke(systemPropertiesClass, "qemu.hw.mainkeys"); if ("1".equals(navBarOverride)) { hasNavigationBar = false; } else if ("0".equals(navBarOverride)) { hasNavigationBar = true; } } catch (Exception e) { e.printStackTrace(); } return hasNavigationBar; } } private int getNavBarWidth() { return getNavBarDimen("navigation_bar_width"); } private int getNavBarHeight() { return getNavBarDimen("navigation_bar_height"); } private int getNavBarDimen(String resourceString) { Resources r = getResources(); int id = r.getIdentifier(resourceString, "dimen", "android"); if (id > 0) { return r.getDimensionPixelSize(id); } else { return 0; } } @Override public void setBackgroundColor(int color) { super.setBackgroundColor(color); //mMenuView.setBackgroundColor(color); } @Override public void setBackgroundResource(int resId) { super.setBackgroundResource(resId); //mMenuView.setBackgroundResource(resId); } public void attachToActivity(Activity activity, boolean isFloatActionBarEnabled) { // get the window background TypedArray a = activity.getTheme().obtainStyledAttributes(new int[] { android.R.attr.windowBackground }); int background = a.getResourceId(0, 0); a.recycle(); this.isFloatActionBarEnabled = isFloatActionBarEnabled; if (isFloatActionBarEnabled) { ViewGroup decor = (ViewGroup) activity.getWindow().getDecorView(); ViewGroup decorChild = (ViewGroup) decor.getChildAt(0); if (decorChild.getBackground() != null) { this.setBackgroundDrawable(decorChild.getBackground()); decorChild.setBackgroundDrawable(null); } else { if (this.getBackground() == null) this.setBackgroundResource(background); } decor.removeView(decorChild); decor.addView(this.getRootView(), 0); getContentView().addView(decorChild); } else { ViewGroup contentParent = (ViewGroup) activity.findViewById(android.R.id.content); ViewGroup content = (ViewGroup) contentParent.getChildAt(0); contentParent.removeView(content); contentParent.addView(this, 0); getContentView().addView(content); } } }