Android 如何放置我自己的映像而不是mediastore.images.media.data?
如何从目录中放入图像而不是从介质中加载。我像这样从图库加载 字符串[]filePathColumn={MediaStore.Images.Media.DATA};。如何从/资产或/可提取mdpi加载?这是我的密码。请告诉我如何使用此代码从我的目录中添加图像Android 如何放置我自己的映像而不是mediastore.images.media.data?,android,Android,如何从目录中放入图像而不是从介质中加载。我像这样从图库加载 字符串[]filePathColumn={MediaStore.Images.Media.DATA};。如何从/资产或/可提取mdpi加载?这是我的密码。请告诉我如何使用此代码从我的目录中添加图像 public class ImageGalleryDemoActivity extends Activity { private static int RESULT_LOAD_IMAGE = 1; /** Called when the
public class ImageGalleryDemoActivity extends Activity {
private static int RESULT_LOAD_IMAGE = 1;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
Button buttonLoadImage = (Button) findViewById(R.id.buttonLoadPicture);
buttonLoadImage.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View arg0) {
Intent i = new Intent(
Intent.ACTION_PICK,
android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
startActivityForResult(i, RESULT_LOAD_IMAGE);
}
});
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == RESULT_LOAD_IMAGE && resultCode == RESULT_OK && null != data) {
Uri selectedImage = data.getData();
String[] filePathColumn = { MediaStore.Images.Media.DATA };
Cursor cursor = getContentResolver().query(selectedImage, filePathColumn, null, null, null);
cursor.moveToFirst();
int columnIndex = cursor.getColumnIndex(filePathColumn[0]);
String picturePath = cursor.getString(columnIndex);
cursor.close();
ImageView imageView = (ImageView) findViewById(R.id.imgView);
imageView.setImageBitmap(BitmapFactory.decodeFile(picturePath));
}
}
您可以将相应的可绘制文件放入android可绘制文件文件夹中,android将根据设备显示密度自动选择所需的可绘制文件。您可以将抽绳设置为
imageView = (ImageView)findViewById(R.id.imageView);
imageView.setImageDrawable(getResources().getDrawable(R.drawable.image));
您也可以从中获得帮助。我添加了上面的代码。请参阅并告诉我如何编辑此代码以从可绘制mdpi获取图像?