android调用系统相机，及照片处理

package barry.android.c; import java.io.BufferedOutputStream; import java.io.File; import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.io.IOException; import java.util.Calendar; import java.util.Locale; import android.app.Activity; import android.content.Intent; import android.graphics.Bitmap; import android.graphics.Canvas; import android.graphics.Color; import android.graphics.Paint; import android.graphics.Rect; import android.graphics.Typeface; import android.graphics.Bitmap.Config; import android.os.Bundle; import android.os.Environment; import android.provider.MediaStore; import android.text.format.DateFormat; import android.util.Log; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.ImageView; import android.widget.Toast; public class MyCaremaActivity extends Activity { @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); Button button = (Button) findViewById(R.id.button); button.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE); startActivityForResult(intent, 1); } }); } @Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { super.onActivityResult(requestCode, resultCode, data); if (resultCode == Activity.RESULT_OK) { String sdStatus = Environment.getExternalStorageState(); if (!sdStatus.equals(Environment.MEDIA_MOUNTED)) { // 检测sd是否可用 Log.v("TestFile", "SD card is not avaiable/writeable right now."); return; } String name = new DateFormat().format("yyyyMMdd_hhmmss",Calendar.getInstance(Locale.CHINA)) + ".jpg"; Toast.makeText(this, name, Toast.LENGTH_LONG).show(); Bundle bundle = data.getExtras(); Bitmap bitmap = (Bitmap) bundle.get("data");// 获取相机返回的数据，并转换为Bitmap图片格式 bitmap=generatorContactCountIcon(bitmap); //FileOutputStream b = null; BufferedOutputStream bos =null; File file = new File("/sdcard/myImage/"); file.mkdirs();// 创建文件夹 String fileName = "/sdcard/myImage/"+name; try { bos= new BufferedOutputStream(new FileOutputStream(fileName)); //b = new FileOutputStream(fileName); bitmap.compress(Bitmap.CompressFormat.JPEG, 100, bos);// 把数据写入文件 } catch (FileNotFoundException e) { e.printStackTrace(); } finally { try { bos.flush(); bos.close(); } catch (IOException e) { e.printStackTrace(); } } ((ImageView) findViewById(R.id.imageView)).setImageBitmap(bitmap);// 将图片显示在ImageView里 } } private Bitmap generatorContactCountIcon(Bitmap icon){ //初始化画布 int iconSize=(int)getResources().getDimension(android.R.dimen.app_icon_size); Bitmap contactIcon=Bitmap.createBitmap(800, 600, Config.ARGB_8888); Canvas canvas=new Canvas(contactIcon); //拷贝图片 Paint iconPaint=new Paint(); iconPaint.setDither(true);//防抖动 iconPaint.setFilterBitmap(true);//用来对Bitmap进行滤波处理，这样，当你选择Drawable时，会有抗锯齿的效果 Rect src=new Rect(0, 0, icon.getWidth()-5, icon.getHeight()-5); Rect dst=new Rect(0, 0, 800, 600); canvas.drawBitmap(icon, src, dst, iconPaint); //在图片上创建经纬度 //String contacyCount="经纬度:"+latLongString; String contacyCount="经纬度:"; //启用抗锯齿和使用设备的文本字距 Paint countPaint=new Paint(Paint.ANTI_ALIAS_FLAG|Paint.DEV_KERN_TEXT_FLAG); countPaint.setColor(Color.RED); countPaint.setTextSize(10f); countPaint.setTypeface(Typeface.DEFAULT_BOLD); canvas.drawText(contacyCount, 10, 10, countPaint); return contactIcon; } }