如何启动相机并拍照

Question

我正在尝试制作Android演示版.在演示中,我必须在活动中显示相机并在前进到另一个活动之前拍照,在那里我可以看到带有图片和小菜单的相机.

如何启动相机并拍照？

Answer 1

在我的应用程序中,我使用以下代码启动相机:

public void imageFromCamera() {
    Intent intent = new Intent("android.media.action.IMAGE_CAPTURE");
    mImageFile = new File(Environment.getExternalStorageDirectory()+File.separator+"MyApp",  
            "PIC"+System.currentTimeMillis()+".jpg");
    mSelectedImagePath = mImageFile.getAbsolutePath();
    intent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(mImageFile));
    startActivityForResult(intent, TAKE_PICTURE);
}

这会将图像保存到路径mSelectedImagePath,即/sdcard/MyApp/.jpg.

然后在onActivityResult中捕获IMAGE_CAPTURE意图的返回并启动您的活动以从那里编辑图像!

public void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);
    if (resultCode == RESULT_OK) {
        switch(requestCode) {
        case TAKE_PICTURE:
                    //Launch ImageEdit Activity
            Intent i = new Intent(this, ImageEdit.class);
                    i.putString("imgPath", "mSelectedImagePath");
                    startActivity(i);
            break;
        }
    }
}

希望这可以帮助!