Android圖片添加文字保存到指定文件夾

package com.example.imagetest;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import android.os.Bundle;
import android.app.Activity;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.Rect;
import android.graphics.Typeface;
import android.widget.ImageView;
/**

圖片上寫字demo
*

@QQ 7617812 2013-4-23 version 1.0
*/
public class MainActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
String str = "要寫的文字";
ImageView imageView = (ImageView) this.findViewById(R.id.imageView1);
drawNewBitmap(imageView, str);
}
/**

在圖片上面寫字
*
@param imageView
@param str
*/
private void drawNewBitmap(ImageView imageView, String str) {
Bitmap photo = BitmapFactory.decodeResource(this.getResources(),
R.drawable.ic_launcher);

int width = photo.getWidth();
int hight = photo.getHeight();
System.out.println("寬" + width + "高" + hight);
Bitmap icon = Bitmap
 .createBitmap(width, hight, Bitmap.Config.ARGB_8888); // 建立一個空的BItMap
Canvas canvas = new Canvas(icon);// 初始化畫布繪制的圖像到icon上
Paint photoPaint = new Paint(); // 建立畫筆
photoPaint.setDither(true); // 獲取跟清晰的圖像采樣
photoPaint.setFilterBitmap(true);// 過濾一些
Rect src = new Rect(0, 0, photo.getWidth(), photo.getHeight());// 創建一個指定的新矩形的坐標
Rect dst = new Rect(0, 0, width, hight);// 創建一個指定的新矩形的坐標
canvas.drawBitmap(photo, src, dst, photoPaint);// 將photo 縮放或則擴大到

       // dst使用的填充區photoPaint


Paint textPaint = new Paint(Paint.ANTI_ALIAS_FLAG
 | Paint.DEV_KERN_TEXT_FLAG);// 設置畫筆
textPaint.setTextSize(20.0f);// 字體大小
textPaint.setTypeface(Typeface.DEFAULT_BOLD);// 采用默認的寬度
textPaint.setColor(Color.RED);// 采用的顏色
canvas.drawText(str, 20, 26, textPaint);// 繪制上去字，開始未知x,y采用那只筆繪制
canvas.save(Canvas.ALL_SAVE_FLAG);
canvas.restore();
imageView.setImageBitmap(icon);
saveMyBitmap(icon,"test");
}
/**

保存文件到指定的路徑下面
@param bitmap 
@param bitName  文件名字
*/
public void saveMyBitmap(Bitmap bitmap, String bitName) {
File f = new File("/sdcard/ebs/" + bitName + ".png");

FileOutputStream fOut = null;
try {
f.createNewFile();
fOut = new FileOutputStream(f);
bitmap.compress(Bitmap.CompressFormat.PNG, 100, fOut);
fOut.flush();
fOut.close();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}


}</pre>