使用android内置相机拍照

主程序：
public class AndroCamera extends Activity {
private static final int IMAGE_CAPTURE = 0;
private Button startBtn;
private Uri imageUri;
private ImageView imageView;

/** Called when the activity is first created.
* sets the content and gets the references to
* the basic widgets on the screen like
* {@code Button} or {@link ImageView}
*/
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
imageView = (ImageView)findViewById(R.id.img);
startBtn = (Button) findViewById(R.id.startBtn);
startBtn.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
startCamera();
}
});
}

public void startCamera() {
Log.d("ANDRO_CAMERA", "Starting camera on the phone...");
String fileName = "testphoto.jpg";
ContentValues values = new ContentValues();
values.put(MediaStore.Images.Media.TITLE, fileName);
values.put(MediaStore.Images.Media.DESCRIPTION,
"Image capture by camera");
values.put(MediaStore.Images.Media.MIME_TYPE, "image/jpeg");
imageUri = getContentResolver().insert(
MediaStore.Images.Media.EXTERNAL_CONTENT_URI, values);
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
intent.putExtra(MediaStore.EXTRA_OUTPUT, imageUri);
intent.putExtra(MediaStore.EXTRA_VIDEO_QUALITY, 1);
startActivityForResult(intent, IMAGE_CAPTURE);
}

protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == IMAGE_CAPTURE) {
if (resultCode == RESULT_OK){
Log.d("ANDRO_CAMERA","Picture taken!!!");
imageView.setImageURI(imageUri);
}
}
}

页面文件：
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<Button android:text="Start Camera"
android:id="@+id/startBtn"
android:layout_width="fill_parent"
android:layout_height="wrap_content">
</Button>
<ImageView android:id="@+id/img"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
</ImageView>
</LinearLayout

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