/**
* Filename: BdBitmapUtils.java
* Description:
* Copyright: Baidu MIC Copyright(c)2011
* @author: Jacob
* @version: 1.0
* Create at: 2013-7-9 下午2:04:21
*
* Modification History:
* Date Author Version Description
* ------------------------------------------------------------------
* 2013-7-9 Jacob 1.0 1.0 Version
*/
package autoinstall.com.tamic.autoinstall;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import android.annotation.SuppressLint;
import android.graphics.Bitmap;
import android.graphics.Bitmap.Config;
import android.graphics.BitmapFactory;
import android.graphics.BitmapFactory.Options;
import android.graphics.Canvas;
import android.graphics.PixelFormat;
import android.graphics.drawable.Drawable;
import android.os.Build;
/**
* bitmap工具类
*/
public final class BitmapUtils {
/**
* Constructor
*/
private BitmapUtils() {
}
/**
* 获取资源图片
*
* @param aPath
* path
* @return bitmap
*/
public static Bitmap getBitmap(String aPath) {
Bitmap bmp = null;
try {
bmp = BitmapFactory.decodeFile(aPath);
} catch (Exception e) {
e.printStackTrace();
}
return bmp;
}
/**
* 保存图片到给定的路径中，PNG保存
*
* @param aBmp
* bmp
* @param aPath
* path
* @return true表示保存成功
*/
public static boolean saveBitmap(Bitmap aBmp, String aPath) {
if (aBmp == null || aPath == null) {
return false;
}
FileOutputStream fos = null;
ByteArrayOutputStream baos = null;
boolean result;
try {
File file = new File(aPath);
if (!file.exists()) {
file.createNewFile();
}
fos = new FileOutputStream(file);
baos = new ByteArrayOutputStream();
aBmp.compress(Bitmap.CompressFormat.PNG, 100, baos); //SUPPRESS CHECKSTYLE
fos.write(baos.toByteArray());
baos.flush();
fos.flush();
result = true;
} catch (OutOfMemoryError e) {
e.printStackTrace();
result = false;
} catch (Exception e) {
e.printStackTrace();
result = false;
} finally {
try {
if (baos != null) {
baos.close();
}
if (fos != null) {
fos.close();
}
} catch (IOException e) {
e.printStackTrace();
}
}
return result;
}
/**
* 保存图片到给定的路径中，JPEG保存
*
* @param aBmp
* bmp
* @param aPath
* path
* @return true表示保存成功
*/
public static boolean saveJPEGBitmap(Bitmap aBmp, String aPath) {
if (aBmp == null || aPath == null) {
return false;
}
FileOutputStream fos = null;
ByteArrayOutputStream baos = null;
boolean result = false;
try {
File file = new File(aPath);
if (!file.exists()) {
file.createNewFile();
}
fos = new FileOutputStream(file);
baos = new ByteArrayOutputStream();
aBmp.compress(Bitmap.CompressFormat.JPEG, 100, baos); //SUPPRESS CHECKSTYLE
fos.write(baos.toByteArray());
baos.flush();
fos.flush();
result = true;
} catch (Error e) {
e.printStackTrace();
} catch (Exception e) {
e.printStackTrace();
result = false;
} finally {
try {
if (baos != null) {
baos.close();
}
if (fos != null) {
fos.close();
}
} catch (IOException e) {
e.printStackTrace();
}
}
return result;
}
/**
* 读取文件中位图文件
*
* @param aFileName
* 文件名，包括路径
* @return 返回读取的bmp
*/
public static Bitmap readBitmapFile(String aFileName) {
Bitmap bitmap = null;
File file = new File(aFileName);
try {
FileInputStream fis = new FileInputStream(file);
bitmap = BitmapFactory.decodeStream(fis);
fis.close();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} catch (OutOfMemoryError e) {
e.printStackTrace();
}
return bitmap;
}
/**
* 读取文件中位图文件
*
* @param aFileName
* 文件名，包括路径
* @param aOptions
* option
* @return 返回读取的bmp
*/
public static Bitmap readBitmapFile(String aFileName, Options aOptions) {
Bitmap bitmap = null;
File file = new File(aFileName);
try {
FileInputStream fis = new FileInputStream(file);
bitmap = BitmapFactory.decodeStream(fis, null, aOptions);
fis.close();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} catch (OutOfMemoryError e) {
e.printStackTrace();
}
return bitmap;
}
/**
* Fills the bitmap's pixels of the specified Color to transparency.
*
* @param aBitmap bitmap to process
* @param aColor color to fill
* @return bmp
*/
@SuppressLint("NewApi")
public static Bitmap eraseBG(Bitmap aBitmap, int aColor) {
int width = aBitmap.getWidth();
int height = aBitmap.getHeight();
Bitmap b = aBitmap.copy(Config.ARGB_8888, true);
if (Build.VERSION.SDK_INT > Build.VERSION_CODES.HONEYCOMB_MR1) {
b.setHasAlpha(true);
}
int[] pixels = new int[width * height];
aBitmap.getPixels(pixels, 0, width, 0, 0, width, height);
for (int i = 0; i < width * height; i++) {
if (pixels[i] == aColor) {
pixels[i] = 0;
}
}
b.setPixels(pixels, 0, width, 0, 0, width, height);
return b;
}
/**
* drawable转换成bitmap
* @param aDrawable drawable
* @return bitmap
*/
public static Bitmap drawableToBitmap(Drawable aDrawable) {
// 取 drawable 的长宽
int w = aDrawable.getIntrinsicWidth();
int h = aDrawable.getIntrinsicHeight();
// 取 drawable 的颜色格式
Config config = aDrawable.getOpacity() != PixelFormat.OPAQUE ? Config.ARGB_8888
: Config.RGB_565;
// 建立对应 bitmap
Bitmap bitmap = null;
try {
bitmap = Bitmap.createBitmap(w, h, config);
} catch (OutOfMemoryError e) {
//BdLog.w("bitmap outofmemory error");
} catch (Exception e) {
//BdLog.w("unknow exception");
}
// 建立对应 bitmap 的画布
Canvas canvas = new Canvas(bitmap);
aDrawable.setBounds(0, 0, w, h);
// 把 drawable 内容画到画布中
aDrawable.draw(canvas);
return bitmap;
}
/**
* recycle a bitmap
* @param aBitmap bitmap
*/
public static void recycleBitmap(Bitmap aBitmap) {
if (aBitmap != null) {
if (Build.VERSION.SDK_INT <= Build.VERSION_CODES.GINGERBREAD_MR1) {
aBitmap.recycle();
}
}
}
}
