package com.fenjuly.combinationimageview;
import android.content.Context;
import android.content.res.TypedArray;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.graphics.PixelFormat;
import android.graphics.drawable.Drawable;
import android.util.AttributeSet;
import android.util.Log;
import android.view.View;
import java.util.ArrayList;
import java.util.List;
/**
* Created by liurongchan on 15/3/17.
*/
public class CombinationImageView extends View {
private List<Bitmap> bitmaps = new ArrayList<>();
private static int[] default_images_reses = new int[] {R.styleable.CombinationImageView_first_image_src, R.styleable.CombinationImageView_second_image_src, R.styleable.CombinationImageView_third_image_src, R.styleable.CombinationImageView_fourth_image_src};
public CombinationImageView(Context context) {
super(context);
}
public CombinationImageView(Context context, AttributeSet attrs) {
this(context, attrs, R.attr.combinationImageView);
}
public CombinationImageView(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
final TypedArray attributes = context.getTheme().obtainStyledAttributes(attrs, R.styleable.CombinationImageView,
defStyleAttr, 0);
for (int default_image_res : default_images_reses) {
Drawable drawable = attributes.getDrawable(default_image_res);
if (drawable != null) {
Bitmap bitmap = drawableToBitmap(drawable);
addImageView(bitmap);
}
}
attributes.recycle();
}
public void addImageView(String path) {
Bitmap bitmap = BitmapFactory.decodeFile(path);
addImageView(bitmap);
}
public void addImageView(int resId) {
Bitmap bitmap = BitmapFactory.decodeResource(getResources(), resId);
addImageView(bitmap);
}
public void addImageView(Bitmap bitmap) {
if (bitmap != null) {
bitmaps.add(bitmap);
}
}
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
setMeasuredDimension(measure(widthMeasureSpec,true), measure(heightMeasureSpec,false));
}
private int measure(int measureSpec,boolean isWidth){
int result;
int mode = MeasureSpec.getMode(measureSpec);
int size = MeasureSpec.getSize(measureSpec);
int padding = isWidth?getPaddingLeft()+getPaddingRight():getPaddingTop()+getPaddingBottom();
if(mode == MeasureSpec.EXACTLY){
result = size;
}else{
result = isWidth ? getSuggestedMinimumWidth() : getSuggestedMinimumHeight();
result += padding;
if(mode == MeasureSpec.AT_MOST){
if(isWidth) {
result = Math.max(result, size);
}
else{
result = Math.min(result, size);
}
}
}
return result;
}
@Override
protected void onDraw(Canvas canvas) {
float total_width = getWidth();
float total_height = getHeight();
int total_bitmap_size = bitmaps.size();
adjustBitmapsSize(total_width, total_height);
switch (total_bitmap_size) {
case 2:
Log.e("2", "invoked");
canvas.drawBitmap(bitmaps.get(0), getPaddingLeft(), getPaddingTop() + total_height / 4, new Paint(Paint.ANTI_ALIAS_FLAG));
canvas.drawBitmap(bitmaps.get(1), getPaddingLeft() + total_width / 2, getPaddingTop() + total_height / 4, new Paint(Paint.ANTI_ALIAS_FLAG));
break;
case 3:
Log.e("3", "invoked");
canvas.drawBitmap(bitmaps.get(0), getPaddingLeft(), getPaddingTop() + total_height / 2, new Paint(Paint.ANTI_ALIAS_FLAG));
canvas.drawBitmap(bitmaps.get(1), getPaddingLeft() + total_width / 2, getPaddingTop() + total_height / 2, new Paint(Paint.ANTI_ALIAS_FLAG));
canvas.drawBitmap(bitmaps.get(2), getPaddingLeft() + total_width / 4, getPaddingTop(), new Paint(Paint.ANTI_ALIAS_FLAG));
break;
case 4:
Log.e("4", "invoked");
canvas.drawBitmap(bitmaps.get(0), getPaddingLeft(), getPaddingTop() + total_height / 2, new Paint(Paint.ANTI_ALIAS_FLAG));
canvas.drawBitmap(bitmaps.get(1), getPaddingLeft() + total_width / 2, getPaddingTop() + total_height /2, new Paint(Paint.ANTI_ALIAS_FLAG));
canvas.drawBitmap(bitmaps.get(2), getPaddingLeft(), getPaddingTop(), new Paint(Paint.ANTI_ALIAS_FLAG));
canvas.drawBitmap(bitmaps.get(3), getPaddingLeft() + total_width / 2, getPaddingTop(), new Paint(Paint.ANTI_ALIAS_FLAG));
break;
case 5:
Log.e("5", "invoked");
canvas.drawBitmap(bitmaps.get(0), getPaddingLeft(), getPaddingTop() + total_height / 2, new Paint(Paint.ANTI_ALIAS_FLAG));
canvas.drawBitmap(bitmaps.get(1), getPaddingLeft() + total_width / 3, getPaddingTop() + total_height / 2, new Paint(Paint.ANTI_ALIAS_FLAG));
canvas.drawBitmap(bitmaps.get(2), getPaddingLeft() + total_width * 2 / 3, getPaddingTop() + total_height / 2, new Paint(Paint.ANTI_ALIAS_FLAG));
canvas.drawBitmap(bitmaps.get(3), getPaddingLeft() + total_width / 6, getPaddingTop() + total_height / 6, new Paint(Paint.ANTI_ALIAS_FLAG));
canvas.drawBitmap(bitmaps.get(4), getPaddingLeft() + total_width / 2, getPaddingTop() + total_height /6, new Paint(Paint.ANTI_ALIAS_FLAG));
break;
case 6:
Log.e("6", "invoked");
canvas.drawBitmap(bitmaps.get(0), getPaddingLeft(), getPaddingTop() + total_height / 2, new Paint(Paint.ANTI_ALIAS_FLAG));
canvas.drawBitmap(bitmaps.get(1), getPaddingLeft() + total_width / 3, getPaddingTop() + total_height / 2, new Paint(Paint.ANTI_ALIAS_FLAG));
canvas.drawBitmap(bitmaps.get(2), getPaddingLeft() + total_width * 2 / 3, getPaddingTop() + total_height / 2, new Paint(Paint.ANTI_ALIAS_FLAG));
canvas.drawBitmap(bitmaps.get(3), getPaddingLeft(), getPaddingTop() + total_height / 6, new Paint(Paint.ANTI_ALIAS_FLAG));
canvas.drawBitmap(bitmaps.get(4), getPaddingLeft() + total_width / 3, getPaddingTop() + total_height / 6, new Paint(Paint.ANTI_ALIAS_FLAG));
canvas.drawBitmap(bitmaps.get(5), getPaddingLeft() + total_width * 2 / 3, getPaddingTop() + total_height / 6, new Paint(Paint.ANTI_ALIAS_FLAG));
break;
case 7:
Log.e("7", "invoked");
canvas.drawBitmap(bitmaps.get(0), getPaddingLeft(), getPaddingTop() + total_height * 2 / 3, new Paint(Paint.ANTI_ALIAS_FLAG));
canvas.drawBitmap(bitmaps.get(1), getPaddingLeft() + total_width / 3, getPaddingTop() + total_height * 2 / 3, new Paint(Paint.ANTI_ALIAS_FLAG));
canvas.drawBitmap(bitmaps.get(2), getPaddingLeft() + total_width * 2 / 3, getPaddingTop() + total_height * 2 / 3, new Paint(Paint.ANTI_ALIAS_FLAG));
canvas.drawBitmap(bitmaps.get(3), getPaddingLeft(), getPaddingTop() + total_height / 3, new Paint(Paint.ANTI_ALIAS_FLAG));
canvas.drawBitmap(bitmaps.get(4), getPaddingLeft() + total_width / 3, getPaddingTop() + total_height / 3, new Paint(Paint.ANTI_ALIAS_FLAG));
canvas.drawBitmap(bitmaps.get(5), getPaddingLeft() + total_width * 2 / 3, getPaddingTop() + total_height / 3, new Paint(Paint.ANTI_ALIAS_FLAG));
canvas.drawBitmap(bitmaps.get(6), getPaddingLeft() + total_width / 3, getPaddingTop(), new Paint(Paint.ANTI_ALIAS_FLAG));
break;
case 8:
Log.e("8", "invoked");
canvas.drawBitmap(bitmaps.get(0), getPaddingLeft(), getPaddingTop() + total_height * 2 / 3, new Paint(Paint.ANTI_ALIAS_FLAG));
canvas.drawBitmap(bitmaps.get(1), getPaddingLeft() + total_width / 3, getPaddingTop() + total_height * 2 / 3, new Paint(Paint.ANTI_ALIAS_FLAG));
canvas.drawBitmap(bitmaps.get(2), getPaddingLeft() + total_width * 2 / 3, getPaddingTop() + total_height * 2 / 3, new Paint(Paint.ANTI_ALIAS_FLAG));
canvas.drawBitmap(bitmaps.get(3), getPaddingLeft(), getPaddingTop() + total_height / 3, new Paint(Paint.ANTI_ALIAS_FLAG));
canvas.drawBitmap(bitmaps.get(4), getPaddingLeft() + total_width / 3, getPaddingTop() + total_height / 3, new Paint(Paint.ANTI_ALIAS_FLAG));
canvas.drawBitmap(bitmaps.get(5), getPaddingLeft() + total_width * 2 / 3, getPaddingTop() + total_height / 3, new Paint(Paint.ANTI_ALIAS_FLAG));
canvas.drawBitmap(bitmaps.get(6), getPaddingLeft() + total_width / 6, getPaddingTop(), new Paint(Paint.ANTI_ALIAS_FLAG));
canvas.drawBitmap(bitmaps.get(7), getPaddingLeft() + total_width / 2, getPaddingTop(), new Paint(Paint.ANTI_ALIAS_FLAG));
break;
case 9:
default:
Log.e("9", "invoked");
canvas.drawBitmap(bitmaps.get(0), getPaddingLeft(), getPaddingTop() + total_height * 2 / 3, new Paint(Paint.ANTI_ALIAS_FLAG));
canvas.drawBitmap(bitmaps.get(1), getPaddingLeft() + total_width / 3, getPaddingTop() + total_height * 2 / 3, new Paint(Paint.ANTI_ALIAS_FLAG));
canvas.drawBitmap(bitmaps.get(2), getPaddingLeft() + total_width * 2 / 3, getPaddingTop() + total_height * 2 / 3, new Paint(Paint.ANTI_ALIAS_FLAG));
canvas.drawBitmap(bitmaps.get(3), getPaddingLeft(), getPaddingTop() + total_height / 3, new Paint(Paint.ANTI_ALIAS_FLAG));
canvas.drawBitmap(bitmaps.get(4), getPaddingLeft() + total_width / 3, getPaddingTop() + total_height / 3, new Paint(Paint.ANTI_ALIAS_FLAG));
canvas.drawBitmap(bitmaps.get(5), getPaddingLeft() + total_width * 2 / 3, getPaddingTop() + total_height / 3, new Paint(Paint.ANTI_ALIAS_FLAG));
canvas.drawBitmap(bitmaps.get(6), getPaddingLeft() , getPaddingTop(), new Paint(Paint.ANTI_ALIAS_FLAG));
canvas.drawBitmap(bitmaps.get(7), getPaddingLeft() + total_width / 3, getPaddingTop(), new Paint(Paint.ANTI_ALIAS_FLAG));
canvas.drawBitmap(bitmaps.get(8), getPaddingLeft() + total_width * 2 / 3, getPaddingTop(), new Paint(Paint.ANTI_ALIAS_FLAG));
break;
}
}
private void adjustBitmapsSize(float totalWidth, float totalHeight) {
switch (bitmaps.size()) {
case 2:
for (int i = 0; i < bitmaps.size(); i++) {
Bitmap b = bitmaps.get(i);
bitmaps.set(i, Bitmap.createScaledBitmap(b, (int)totalWidth / 2, (int)totalHeight / 2, true));
}
break;
case 3:
case 4:
for (int i = 0; i < bitmaps.size(); i++) {
Bitmap b = bitmaps.get(i);
bitmaps.set(i, Bitmap.createScaledBitmap(b, (int)totalWidth / 2, (int)totalHeight / 2, true));
}
break;
case 5:
case 6:
case 7:
case 8:
case 9:
default:
for (int i = 0; i < bitmaps.size(); i++) {
Bitmap b = bitmaps.get(i);
bitmaps.set(i, Bitmap.createScaledBitmap(b, (int)totalWidth / 3, (int)totalHeight / 3, true));
}
break;
}
}
public int getNumbersOfView() {
return bitmaps.size();
}
public void removeView(int position) {
if (position >= 0 && position < bitmaps.size()) {
bitmaps.remove(position);
} else {
throw new ArrayIndexOutOfBoundsException();
}
}
public void removeAllView() {
bitmaps.clear();
}
private static Bitmap drawableToBitmap(Drawable drawable) {
int w = drawable.getIntrinsicWidth();
int h = drawable.getIntrinsicHeight();
Bitmap.Config config = drawable.getOpacity() != PixelFormat.OPAQUE ? Bitmap.Config.ARGB_8888
: Bitmap.Config.RGB_565;
Bitmap bitmap = Bitmap.createBitmap(w, h, config);
Canvas canvas = new Canvas(bitmap);
drawable.setBounds(0, 0, w, h);
drawable.draw(canvas);
return bitmap;
}
}