Android Open Source - FPlayAndroid Radio Station View

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The source code is released under:
Copyright (c) 2013-2014, Carlos Rafael Gimenes das Neves All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the followin...
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Java Source Code

//
// FPlayAndroid is distributed under the FreeBSD License
///*from  w w w. ja va 2  s.  com*/
// Copyright (c) 2013-2014, Carlos Rafael Gimenes das Neves
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this
//    list of conditions and the following disclaimer.
// 2. Redistributions in binary form must reproduce the above copyright notice,
//    this list of conditions and the following disclaimer in the documentation
//    and/or other materials provided with the distribution.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
// ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
// ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// The views and conclusions contained in the software and documentation are those
// of the authors and should not be interpreted as representing official policies,
// either expressed or implied, of the FreeBSD Project.
//
// https://github.com/carlosrafaelgn/FPlayAndroid
//
package br.com.carlosrafaelgn.fplay.ui;

import android.annotation.TargetApi;
import android.content.Context;
import android.graphics.Canvas;
import android.graphics.drawable.Drawable;
import android.os.Build;
import android.text.Layout.Alignment;
import android.text.StaticLayout;
import android.view.Gravity;
import android.view.View;
import android.view.ViewDebug.ExportedProperty;
import android.widget.LinearLayout;

import br.com.carlosrafaelgn.fplay.R;
import br.com.carlosrafaelgn.fplay.list.RadioStation;
import br.com.carlosrafaelgn.fplay.ui.drawable.TextIconDrawable;

public final class RadioStationView extends LinearLayout implements View.OnClickListener, View.OnLongClickListener {
  private RadioStation station;
  private BgButton btnFavorite;
  private String ellipsizedTitle, ellipsizedOnAir;
  private String[] descriptionLines, tagsLines;
  private int state, width, position, descriptionY, tagsY;
  
  private static int height, verticalMargin;
  
  public static int getViewHeight() {
    verticalMargin = (UI.isVerticalMarginLarge ? UI._16sp : UI._8sp);
    height = verticalMargin + UI._22spBox + UI._2dp + UI._18spBox + (3 * UI._14spBox) + UI._4dp + Math.max(UI.defaultControlSize + (UI.isDividerVisible ? (UI._2dp + UI.strokeSize) : UI._2dp), verticalMargin + (UI._14spBox << 1)) + UI._4dp;
    return height;
  }
  
  public RadioStationView(Context context) {
    super(context);
    setOnClickListener(this);
    setOnLongClickListener(this);
    setBaselineAligned(false);
    setGravity(Gravity.RIGHT | Gravity.BOTTOM);
    getViewHeight();
    descriptionLines = new String[4];
    tagsLines = new String[3];
    btnFavorite = new BgButton(context);
    LayoutParams p = new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
    p.bottomMargin = (UI.isDividerVisible ? UI.strokeSize : 0);
    btnFavorite.setLayoutParams(p);
    btnFavorite.setHideBorders(true);
    btnFavorite.setIcon(UI.ICON_FAVORITE_ON, UI.ICON_FAVORITE_OFF, true, false, true, true);
    btnFavorite.setContentDescription(context.getText(R.string.favorite));
    btnFavorite.setOnClickListener(this);
    btnFavorite.setTextColor(UI.colorState_text_listitem_reactive);
    addView(btnFavorite);
    super.setDrawingCacheEnabled(false);
  }
  
  private void processEllipsis() {
    if (width <= (UI._8dp << 1)) {
      ellipsizedTitle = "";
      ellipsizedOnAir = "";
      descriptionLines[0] = null;
      tagsLines[0] = null;
      return;
    }
    ellipsizedTitle = UI.ellipsizeText(station.title, UI._22sp, width - (UI._8dp << 1), true);
    ellipsizedOnAir = UI.ellipsizeText(station.onAir, UI._18sp, width - (UI._8dp << 1) - UI._18sp - UI._4dp, true);
    UI.textPaint.setTextSize(UI._14sp);
    
    //push the tags to the bottom!
    StaticLayout layout = new StaticLayout(station.tags, UI.textPaint, width - (UI._8dp << 1) - UI.defaultControlSize, Alignment.ALIGN_NORMAL, 1, 0, false);
    int i, visibleLines = Math.min(2, layout.getLineCount());
    for (i = 0; i < visibleLines; i++)
      tagsLines[i] = station.tags.substring(layout.getLineStart(i), layout.getLineEnd(i));
    tagsLines[i] = null;
    if (layout.getLineCount() > 2) {
      //ellipsize last line...
      if (tagsLines[1].length() > 2)
        tagsLines[1] = tagsLines[1].substring(0, tagsLines[1].length() - 2) + "\u2026";
      else
        tagsLines[1] += "\u2026";
    }
    tagsY = height - verticalMargin - (visibleLines * UI._14spBox) + UI._14spYinBox;
    
    //center the description vertically, considering all available space
    final int top = verticalMargin + UI._22spBox + UI._2dp + UI._18spBox, bottom = Math.max(UI.defaultControlSize + (UI.isDividerVisible ? (UI._2dp + UI.strokeSize) : UI._2dp), verticalMargin + (visibleLines * UI._14spBox));
    
    layout = new StaticLayout(station.description, UI.textPaint, width - (UI._8dp << 1), Alignment.ALIGN_NORMAL, 1, 0, false);
    visibleLines = Math.min(3, layout.getLineCount());
    for (i = 0; i < visibleLines; i++)
      descriptionLines[i] = station.description.substring(layout.getLineStart(i), layout.getLineEnd(i));
    descriptionLines[i] = null;
    if (layout.getLineCount() > 3) {
      //ellipsize last line...
      if (descriptionLines[2].length() > 2)
        descriptionLines[2] = descriptionLines[2].substring(0, descriptionLines[2].length() - 2) + "\u2026";
      else
        descriptionLines[2] += "\u2026";
    }
    descriptionY = top + ((height - top - bottom) >> 1) - ((visibleLines * UI._14spBox) >> 1) + UI._14spYinBox;
  }

  @Override
  public CharSequence getContentDescription() {
    if (station != null)
      return station.title;
    return super.getContentDescription();
  }

  public void setItemState(RadioStation station, int position, int state) {
    this.position = position;
    if (btnFavorite != null && (this.state & UI.STATE_SELECTED) != (state & UI.STATE_SELECTED))
      btnFavorite.setTextColor((state != 0) ? UI.colorState_text_selected_static : UI.colorState_text_listitem_reactive);
    this.state = (this.state & ~(UI.STATE_CURRENT | UI.STATE_SELECTED | UI.STATE_MULTISELECTED)) | state;
    //watch out, DO NOT use equals() in favor of speed!
    if (this.station == station)
      return;
    this.station = station;
    if (btnFavorite != null)
      btnFavorite.setChecked(station.isFavorite);
    processEllipsis();
  }
  
  @TargetApi(Build.VERSION_CODES.JELLY_BEAN)
  @Override
  public void setBackground(Drawable background) {
    super.setBackground(null);
  }
  
  @Override
  @Deprecated
  public void setBackgroundDrawable(Drawable background) {
    super.setBackgroundDrawable(null);
  }
  
  @Override
  public void setBackgroundResource(int resid) {
    super.setBackgroundResource(0);
  }
  
  @Override
  public void setBackgroundColor(int color) {
    super.setBackgroundResource(0);
  }
  
  @Override
  public Drawable getBackground() {
    return null;
  }
  
  @Override
  public void invalidateDrawable(Drawable drawable) {
  }
  
  @Override
  protected boolean verifyDrawable(Drawable drawable) {
    return false;
  }
  
  @Override
  @ExportedProperty(category = "drawing")
  public boolean isOpaque() {
    return false;//((state & ~UI.STATE_CURRENT) != 0);
  }
  
  @Override
  protected void drawableStateChanged() {
    super.drawableStateChanged();
    final boolean old = (state == 0);
    state = UI.handleStateChanges(state, isPressed(), isFocused(), this);
    if ((state == 0) != old && btnFavorite != null)
      btnFavorite.setTextColor((state != 0) ? UI.colorState_text_selected_static : UI.colorState_text_listitem_reactive);
  }
  
  @Override
  protected int getSuggestedMinimumHeight() {
    return height;
  }
  
  @Override
  public int getMinimumHeight() {
    return height;
  }
  
  @Override
  protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
    super.onMeasure(widthMeasureSpec, heightMeasureSpec);
    setMeasuredDimension(resolveSize(0, widthMeasureSpec), height);
  }
  
  @Override
  protected void onSizeChanged(int w, int h, int oldw, int oldh) {
    super.onSizeChanged(w, h, oldw, oldh);
    if (width != w) {
      width = w;
      processEllipsis();
    }
  }
  
  //Android Custom Layout - onDraw() never gets called
  //http://stackoverflow.com/questions/13056331/android-custom-layout-ondraw-never-gets-called
  @Override
  protected void dispatchDraw(Canvas canvas) {
    final int txtColor = (((state & ~UI.STATE_CURRENT) == 0) ? UI.color_text_listitem : UI.color_text_selected);
    final int txtColor2 = (((state & ~UI.STATE_CURRENT) == 0) ? UI.color_text_listitem_secondary : UI.color_text_selected);
    getDrawingRect(UI.rect);
    UI.drawBgBorderless(canvas, state | ((state & UI.STATE_SELECTED & ((BgListView)getParent()).extraState) >>> 2), true);
    UI.drawText(canvas, ellipsizedTitle, txtColor, UI._22sp, UI._8dp, verticalMargin + UI._22spYinBox);
    TextIconDrawable.drawIcon(canvas, UI.ICON_FPLAY, UI._8dp, verticalMargin + UI._22spBox + UI._2dp + (UI._18spBox >> 1) - (UI._18sp >> 1), UI._18sp, txtColor2);
    UI.drawText(canvas, ellipsizedOnAir, txtColor2, UI._18sp, UI._8dp + UI._18sp + UI._4dp, verticalMargin + UI._22spBox + UI._2dp + UI._18spYinBox);
    int i = 0, y = descriptionY;
    while (descriptionLines[i] != null) {
      UI.drawText(canvas, descriptionLines[i], txtColor, UI._14sp, UI._8dp, y);
      y += UI._14spBox;
      i++;
    }
    i = 0;
    y = tagsY;
    while (tagsLines[i] != null) {
      UI.drawText(canvas, tagsLines[i], txtColor2, UI._14sp, UI._8dp, y);
      y += UI._14spBox;
      i++;
    }
    super.dispatchDraw(canvas);
  }
  
  @Override
  protected void dispatchSetPressed(boolean pressed) {
  }
  
  @Override
  protected void onDetachedFromWindow() {
    station = null;
    btnFavorite = null;
    ellipsizedTitle = null;
    ellipsizedOnAir = null;
    descriptionLines = null;
    tagsLines = null;
    super.onDetachedFromWindow();
  }
  
  @Override
  public void onClick(View view) {
    if (view == btnFavorite) {
      if (station != null)
        station.isFavorite = btnFavorite.isChecked();
      if (UI.browserActivity != null)
        UI.browserActivity.processItemButtonClick(position, true);
    } else {
      if (UI.browserActivity != null)
        UI.browserActivity.processItemClick(position);
    }
  }
  
  @Override
  public boolean onLongClick(View view) {
    if (UI.browserActivity != null)
      UI.browserActivity.processItemLongClick(position);
    return true;
  }
}
Java Source Code List
