实现主流软件的调用系统相机拍照 取得照片 并进行加工

无意间看到@sdliuxiaofei的帖子 http://www.eoeandroid.com/forum.php?mod=viewthread&tid=166200 由于前段时间做相机应用 自己写的相机 结果是各种机型不兼容(没有camera360的技术和时间),搞的头疼 看到楼主的帖子才知道这才是"王道",简单又实用. 不过@sdliuxiaofei的例子还是有点小问题的,这个例子一般拍下来的是相片的缩略图,压缩到内存卡不到20k的(中兴V880测试是10k.可到省流量.)这样的效果是不能让用户满意的 调查了腾讯的相机后发现了他们的都是很好质量的照片,还支持压缩功能,具体自己测试吧.于是做了这个程序,几乎和腾讯他们实现的方法类似了,腾讯拍照后处理了各种效果就不一一介绍了, 我只是加了一个加水印功能. 总之,感觉如果不是做camera360这样的应用,调用相机已经很够用了,腾讯他们也是这么做的.再次感谢@sdliuxiaofei 主Activity就一个按钮. package com.zte; import java.io.File; import java.io.FileOutputStream; import android.R.integer; import android.app.Activity; import android.content.ContentResolver; import android.content.Intent; import android.graphics.Bitmap; import android.graphics.Canvas; import android.graphics.Color; import android.graphics.Paint; import android.graphics.Bitmap.CompressFormat; import android.net.Uri; import android.os.Bundle; import android.os.Environment; import android.provider.MediaStore; import android.view.View; import android.widget.Button; import android.widget.Toast; public class ZTEActivity extends Activity { public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.zte_mainmenu); Button buttoncamera = (Button) findViewById(R.id.button1); buttoncamera.setText("拍照"); buttoncamera.setOnClickListener(new View.OnClickListener() { public void onClick(View v) { Intent intent = new Intent(ZTEActivity.this, HandlePicActivity.class); startActivity(intent); } }); } } 拍照的Activity: package com.zte; import java.io.File; import java.io.FileOutputStream; import android.app.Activity; import android.content.ContentResolver; import android.content.Intent; import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.graphics.Camera; import android.graphics.Canvas; import android.graphics.Color; import android.graphics.Paint; import android.graphics.Bitmap.CompressFormat; import android.net.Uri; import android.os.Bundle; import android.os.Environment; import android.provider.MediaStore; import android.util.Log; import android.view.View; import android.widget.Button; import android.widget.ImageButton; import android.widget.ImageView; import android.widget.Toast; public class HandlePicActivity extends Activity { private static boolean openCamera = true; private String localTempImgFileName = "temp"; private final int CAPTURE_CODE = 100; private ImageView iv; private String TAG; protected void onCreate(Bundle savedInstanceState) { // TODO Auto-generated method stub super.onCreate(savedInstanceState); if (openCamera) { File dir = new File(Environment.getExternalStorageDirectory() .getAbsolutePath() + "/DCIM/");// 设置临时文件的存放目录 if (!dir.exists()) { dir.mkdir(); } Intent intent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE); File f = new File(dir, localTempImgFileName); Uri u = Uri.fromFile(f); intent.putExtra(MediaStore.Images.Media.ORIENTATION, 0); intent.putExtra(MediaStore.EXTRA_OUTPUT, u); startActivityForResult(intent, CAPTURE_CODE); openCamera = false; } } @Override protected void onResume() { super.onResume(); if (!openCamera) { setContentView(R.layout.zte_mainmenu); iv = (ImageView) findViewById(R.id.picture); Button button = (Button) findViewById(R.id.button1); button.setText("加水印"); button.setOnClickListener(new View.OnClickListener() { public void onClick(View v) { Thread thread = new Thread(new ThreadGetData());// 避免阻塞UI线程 thread.start(); finish(); } }); } } protected void onActivityResult(int requestCode, int resultCode, Intent data) { openCamera=true; try { if (resultCode != RESULT_OK) { return; } else if (requestCode == CAPTURE_CODE && resultCode == RESULT_OK) { File dir = new File(Environment.getExternalStorageDirectory() .getAbsolutePath() + "/DCIM/");// 设置存放目录 File f = new File(dir.getAbsoluteFile(), localTempImgFileName); BitmapFactory.Options opts = new BitmapFactory.Options();//获取缩略图显示到屏幕 opts.inSampleSize = 5; Bitmap cbitmap = BitmapFactory.decodeFile(f.getAbsolutePath(),opts); iv.setImageBitmap(cbitmap); } } catch (Exception e) { e.printStackTrace(); Toast.makeText(this, "选择图片错误，图片只能为jpg格式", Toast.LENGTH_SHORT) .show(); } } class ThreadGetData implements Runnable { public void run() { try { File dir = new File(Environment.getExternalStorageDirectory() .getAbsolutePath() + "/DCIM/");// 设置存放目录 // if (!dir.exists()) { // dir.mkdir(); // } File f = new File(dir.getAbsoluteFile(), localTempImgFileName); // Uri u = Uri.parse(android.provider.MediaStore.Images.Media // .insertImage(getContentResolver(), f.getAbsolutePath(), // null, null)); // Uri u = Uri.parse(f.getAbsolutePath()); // Bitmap cbitmap = MediaStore.Images.Media.getBitmap(// 从URI读取图像到bitmap以处理 // HandlePicActivity.this.getContentResolver(), u); Bitmap cbitmap = BitmapFactory.decodeFile(f.getAbsolutePath()); String picname = dir.getAbsolutePath() + "/" + "ZTEPIC_" + System.currentTimeMillis() + ".jpg"; File file = new File(picname); FileOutputStream outStream = new FileOutputStream(file); String zte = "ZTE"; Bitmap zteBitmap = Bitmap.createBitmap(cbitmap.getWidth(), cbitmap.getHeight(), Bitmap.Config.ARGB_8888);// 做一个bitmap在上面加水印和原来的图片 Canvas canvas = new Canvas(zteBitmap); Paint p = new Paint(); p.setColor(Color.RED); p.setTextSize(80); canvas.drawBitmap(cbitmap, 0, 0, p); canvas.drawText(zte, cbitmap.getWidth() - 200, cbitmap.getHeight() - 60, p); zteBitmap.compress(CompressFormat.JPEG, 85, outStream); f.delete(); Toast.makeText(HandlePicActivity.this, "存储完成", 100).show(); } catch (Exception e) { e.printStackTrace(); } } } }