Java tutorial
/** * Wire * Copyright (C) 2016 Wire Swiss GmbH * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ package com.waz.zclient.ui.cursor; import android.content.Context; import android.support.v4.content.ContextCompat; import android.support.v4.view.GestureDetectorCompat; import android.util.AttributeSet; import android.view.GestureDetector; import android.view.Gravity; import android.view.LayoutInflater; import android.view.MotionEvent; import android.view.View; import android.view.ViewGroup; import android.widget.FrameLayout; import android.widget.LinearLayout; import com.waz.zclient.ui.R; import com.waz.zclient.ui.utils.CursorUtils; import com.waz.zclient.ui.views.CursorIconButton; import java.util.List; public class CursorToolbar extends LinearLayout { private Callback callback; private int buttonWidth; private View touchedButtonContainer; private GestureDetectorCompat detector; private List<CursorMenuItem> cursorItems; private CursorIconButton cursorIconButtonCamera; private CursorIconButton cursorIconButtonAudio; public void setAccentColor(int accentColor) { cursorIconButtonCamera.initTextColor(accentColor); cursorIconButtonAudio.initTextColor(accentColor); } private GestureDetector.OnGestureListener gestureListener = new GestureDetector.SimpleOnGestureListener() { @Override public boolean onDown(MotionEvent e) { return true; } @Override public void onLongPress(MotionEvent e) { if (callback != null) { CursorMenuItem item = (CursorMenuItem) touchedButtonContainer.getTag(); if (item != CursorMenuItem.AUDIO_MESSAGE && item != CursorMenuItem.DUMMY) { callback.onShowTooltip(item, getResources().getString(item.resTooltip), touchedButtonContainer); } callback.onCursorButtonLongPressed(item); } } @Override public boolean onSingleTapConfirmed(MotionEvent e) { if (callback != null) { CursorMenuItem item = (CursorMenuItem) touchedButtonContainer.getTag(); callback.onCursorButtonClicked(item); switch (item) { case CAMERA: cursorIconButtonCamera.setSelected(true); cursorIconButtonAudio.setSelected(false); break; case AUDIO_MESSAGE: cursorIconButtonCamera.setSelected(false); cursorIconButtonAudio.setSelected(true); break; } } return true; } }; public CursorToolbar(Context context) { this(context, null); } public CursorToolbar(Context context, AttributeSet attrs) { this(context, attrs, 0); } public CursorToolbar(Context context, AttributeSet attrs, int defStyleAttr) { super(context, attrs, defStyleAttr); detector = new GestureDetectorCompat(getContext(), gestureListener); setOrientation(LinearLayout.HORIZONTAL); buttonWidth = getResources().getDimensionPixelSize(R.dimen.new_cursor_menu_button_width); } public void setCursorItems(List<CursorMenuItem> cursorItems) { this.cursorItems = cursorItems; createItems(); } public void setCallback(Callback callback) { this.callback = callback; } private void createItems() { LayoutInflater inflater = LayoutInflater.from(getContext()); int diameter = getResources().getDimensionPixelSize(R.dimen.cursor__menu_button__diameter); int rightMargin; /* As long as 4 mainItems are shown in the toolbar, they are spread out equally in phone */ rightMargin = CursorUtils.getMarginBetweenCursorButtons(getContext()); CursorIconButton cursorIconButton; for (int i = 0; i < cursorItems.size(); i++) { final CursorMenuItem item = cursorItems.get(i); final FrameLayout buttonContainer = new FrameLayout(getContext()); buttonContainer.setId(item.resId); cursorIconButton = (CursorIconButton) inflater.inflate(R.layout.cursor__item, this, false); cursorIconButton.setText(item.glyphResId); cursorIconButton .setPressedBackgroundColor(ContextCompat.getColor(getContext(), R.color.light_graphite)); switch (item) { case CAMERA: cursorIconButtonCamera = cursorIconButton; break; case AUDIO_MESSAGE: cursorIconButtonAudio = cursorIconButton; break; } if (item == CursorMenuItem.DUMMY) { cursorIconButton.initTextColor(ContextCompat.getColor(getContext(), R.color.transparent)); cursorIconButton .setPressedBackgroundColor(ContextCompat.getColor(getContext(), R.color.transparent)); cursorIconButton.setBackgroundColor(ContextCompat.getColor(getContext(), R.color.transparent)); } buttonContainer.setTag(item); buttonContainer.setLongClickable(true); buttonContainer.setOnTouchListener(new OnTouchListener() { @Override public boolean onTouch(View view, MotionEvent motionEvent) { CursorMenuItem item = (CursorMenuItem) view.getTag(); touchedButtonContainer = buttonContainer; if (callback != null && item == CursorMenuItem.AUDIO_MESSAGE) { callback.onMotionEvent(item, motionEvent); } detector.onTouchEvent(motionEvent); return false; } }); FrameLayout.LayoutParams paramsButton = new FrameLayout.LayoutParams(diameter, diameter); paramsButton.gravity = Gravity.CENTER; buttonContainer.addView(cursorIconButton, paramsButton); LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(buttonWidth, ViewGroup.LayoutParams.MATCH_PARENT); if (i < cursorItems.size() - 1) { params.rightMargin = rightMargin; } addView(buttonContainer, params); } } public void unselectItems() { cursorIconButtonCamera.setSelected(false); cursorIconButtonAudio.setSelected(false); } public interface Callback { void onCursorButtonClicked(CursorMenuItem cursorMenuItem); void onCursorButtonLongPressed(CursorMenuItem cursorMenuItem); void onMotionEvent(CursorMenuItem cursorMenuItem, MotionEvent motionEvent); void onShowTooltip(CursorMenuItem item, String message, View anchor); } }