public class PhotoTest extends Activity {
private ImageView iv;
private Bitmap bitmap;
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.photo);
iv = (ImageView) findViewById(R.id.photo);
}
public void pai(View view){
//調用系統拍照功能的Action
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
//跳轉到拍照的Action
startActivityForResult(intent, 0);
}
//startActivityForResult(intent, 0)所返回數據的方法
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
// TODO Auto-generated method stub
if(data!=null){
//獲取拍攝的圖片
bitmap = (Bitmap) data.getExtras().get("data");
//設置圖片的兩種方式:
//第一種方式:直接調用setImageBitmap方法把bitmap對象放進去
//iv.setImageBitmap(bitmap);
//第二種方式:通過BitmapDrawable把bitmap對象轉爲drawable類型,再調用setImageDrawable()方法設置ImageView顯示的圖片
BitmapDrawable db = new BitmapDrawable(bitmap);
Drawable drawable = db;
iv.setImageDrawable(drawable);
try {
OutputStream os = new FileOutputStream(Environment.getExternalStorageDirectory().getAbsolutePath()+ "/2015011301.jpg");
//把圖片對象(bitmap)內容壓縮爲字節 放入寫流
bitmap.compress(CompressFormat.JPEG, 100, os);
os.flush();
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
super.onActivityResult(requestCode, resultCode, data);
}
}
.xml代碼:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center"
android:orientation="vertical" >
<Button
android:id="@+id/button1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="拍照"
android:onClick="pai"/>
<ImageView
android:id="@+id/photo"
android:layout_width="match_parent"
android:layout_height="match_parent"
/>
</LinearLayout>