Android Open Source - android-popup-info Person Bubble Activity

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License

The source code is released under:

Apache License

Java Source Code

package com.demondevelopers.popupinfo;
// w w w.j av a 2  s . c  om
import com.demondevelopers.popupinfo.model.Person;

import android.animation.Animator;
import android.animation.TimeInterpolator;
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.content.res.Resources;
import android.graphics.Canvas;
import android.graphics.ColorFilter;
import android.graphics.Paint;
import android.graphics.Path;
import android.graphics.PixelFormat;
import android.graphics.Rect;
import android.graphics.RectF;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.view.ViewGroup;
import android.view.ViewTreeObserver;
import android.view.animation.AccelerateInterpolator;
import android.view.animation.DecelerateInterpolator;
import android.widget.TextView;


public class PersonBubbleActivity extends Activity
{
  public  static final String TAG = PersonBubbleActivity.class.getSimpleName();
  private static final String EXTRA_ORIGIN_X = "extraOriginX";
  private static final String EXTRA_ORIGIN_Y = "extraOriginY";
  private static final String EXTRA_ORIGIN_W = "extraOriginW";
  private static final String EXTRA_ORIGIN_H = "extraOriginH";
  private static final String EXTRA_PERSON   = "extraPerson";
  
  private static final TimeInterpolator sDecelerator = new DecelerateInterpolator();
  private static final TimeInterpolator sAccelerator = new AccelerateInterpolator();
  
  private int    mOriginX, mOriginY, mOriginW, mOriginH;
  private Person mPerson;
  
  private PopupLayout mPopupLayout;
  private int mDuration;
  
  
  public static Intent createIntent(Context context, View view, Person person)
  {
    int[] screenLocation = new int[2];
    view.getLocationOnScreen(screenLocation);
    return new Intent(context.getApplicationContext(), PersonBubbleActivity.class)
      .putExtra(EXTRA_ORIGIN_X, screenLocation[0])
      .putExtra(EXTRA_ORIGIN_Y, screenLocation[1])
      .putExtra(EXTRA_ORIGIN_W, view.getWidth())
      .putExtra(EXTRA_ORIGIN_H, view.getHeight())
      .putExtra(EXTRA_PERSON,   person);
  }
  
  @SuppressWarnings("deprecation")
  @Override
  protected void onCreate(Bundle savedInstanceState)
  {
    overridePendingTransition(0, 0);
    super.onCreate(savedInstanceState);
    
    Intent intent = getIntent();
    if(intent == null || intent.getExtras() == null){
      Log.e(TAG, "Must supply extras");
      finish();
      return;
    }
    
    mOriginX = intent.getIntExtra(EXTRA_ORIGIN_X, 0);
    mOriginY = intent.getIntExtra(EXTRA_ORIGIN_Y, 0);
    mOriginW = intent.getIntExtra(EXTRA_ORIGIN_W, 0);
    mOriginH = intent.getIntExtra(EXTRA_ORIGIN_H, 0);
    mPerson  = intent.getParcelableExtra(EXTRA_PERSON);
    
    mPopupLayout = new PopupLayout(this);
    setContentView(getLayoutInflater()
      .inflate(R.layout.person_bubble, mPopupLayout));
    
    View personBubble = mPopupLayout.findViewById(R.id.person_bubble);
    personBubble.setBackgroundDrawable(new PopupBackground(this));
    
    TextView personName = (TextView)mPopupLayout.findViewById(R.id.person_name);
    TextView personStatus = (TextView)mPopupLayout.findViewById(R.id.person_status);
    
    personName.setText(mPerson.getName());
    personStatus.setText(mPerson.getStatus());
    
    mDuration = getResources().getInteger(android.R.integer.config_mediumAnimTime);
    
    if(savedInstanceState == null){
      ViewTreeObserver observer = mPopupLayout.getViewTreeObserver();
      observer.addOnPreDrawListener(new ViewTreeObserver.OnPreDrawListener()
      {
        @Override
        public boolean onPreDraw()
        {
          mPopupLayout.getViewTreeObserver().removeOnPreDrawListener(this);
          mPopupLayout.setAlpha(0.0f);
          mPopupLayout.animate()
            .setDuration(mDuration)
            .setInterpolator(sDecelerator)
            .alpha(1.0f);
          return true;
        }
      });
    }
  }
  
  @Override
  public void onBackPressed()
  {
    finishAndAnimate();
  }
  
  @Override
  public void finish()
  {
    super.finish();
    overridePendingTransition(0, 0);
  }
  
  private void finishAndAnimate()
  {
    mPopupLayout.animate()
      .setDuration(mDuration / 2)
      .setInterpolator(sAccelerator)
      .alpha(0.0f)
      .setListener(new SimpleAnimatorListener()
      {
        @Override
        public void onAnimationEnd(Animator animation)
        {
          finish();
        }
      });
  }
  
  private class PopupLayout extends ViewGroup
    implements View.OnClickListener
  {
    private Rect mPos = new Rect();
    
    public PopupLayout(Context context)
    {
      super(context);
      setOnClickListener(this);
    }
    
    @Override
    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec)
    {
      measureChildren(widthMeasureSpec, heightMeasureSpec);
      super.onMeasure(widthMeasureSpec, heightMeasureSpec);
    }
    
    @Override
    protected void onLayout(boolean changed, int l, int t, int r, int b)
    {
      if(getChildCount() == 1){
        final View child = getChildAt(0);
        int width  = child.getMeasuredWidth();
        int height = child.getMeasuredHeight();
        
        int[] screenLocation = new int[2];
        getLocationOnScreen(screenLocation);
        
        mPos.left   = (mOriginX - screenLocation[0]) + ((mOriginW - width) / 2);
        mPos.top    = (mOriginY - screenLocation[1] + mOriginH);
        mPos.right  = mPos.left + width;
        mPos.bottom = mPos.top + height;
        
        if(mPos.right > r){
          mPos.offset((r - mPos.right), 0);
        }else if(mPos.left < 0){
          mPos.offset((l - mPos.left), 0);
        }
        
        child.layout(mPos.left, mPos.top, mPos.right, mPos.bottom);
      }
      else{
        Log.w(TAG, "PopupLayout should only have 1 view");
      }
    }
    
    @Override
    public void onClick(View v)
    {
      finishAndAnimate();
    }
  }
  
  private class PopupBackground extends Drawable
  {
    private Paint mPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
    private RectF mRectF = new RectF(); 
    private Path  mPath  = new Path();
    private float mCorner;
    
    
    public PopupBackground(Context context)
    {
      Resources res = context.getResources();
      mCorner = res.getDimensionPixelSize(R.dimen.person_bubble_corner);
      mPaint.setColor(res.getColor(R.color.person_bubble_bg));
      mPaint.setStyle(Paint.Style.FILL);
    }
    
    @Override
    protected void onBoundsChange(Rect bounds)
    {
      super.onBoundsChange(bounds);
      mRectF.set(bounds);
      mRectF.top += mCorner;
      mPath.reset();
      mPath.moveTo(mRectF.centerX() - mCorner, mRectF.top);
      mPath.lineTo(mRectF.centerX(), mRectF.top - mCorner);
      mPath.lineTo(mRectF.centerX() + mCorner, mRectF.top);
      mPath.addRoundRect(mRectF, mCorner, mCorner, Path.Direction.CW);
    }
    
    @Override
    public void draw(Canvas canvas)
    {
      canvas.drawPath(mPath, mPaint);
    }
    
    @Override
    public int getOpacity()
    {
      return PixelFormat.TRANSLUCENT;
    }
    
    @Override
    public void setAlpha(int alpha)
    {
      // 
    }
    
    @Override
    public void setColorFilter(ColorFilter cf)
    {
      //
    }
  }
}

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