The Android development ImageView image cannot show the resolution process
- 2020-05-10 18:48:22
- OfStack
Today I came across a very strange question:
ImageView cannot display the loaded local SDCard image in Android.
The process is as follows: the local camera program is first called to record, and then the pictures taken are loaded into ImageView for display.
It feels like a weird question. I remember that I did a project before, which was loaded with pictures. After the comparison, I found that there was no problem with the code logic and layout. What was the problem?
Internet search for a long time, no results, feeling mad to the edge... When I was about to give up, I accidentally compared the AndroidManifest.xml file and found a slight difference. The difference was android in users-sdk :targetSdkVersion has and has not. So I changed.
I noticed that I commented out android:targetSdkVersion in users-sdk, and when I was debugging, the image was displayed. Why is that?? Suddenly speechless, for god to explain ah...
ImageView cannot display the loaded local SDCard image in Android.
The process is as follows: the local camera program is first called to record, and then the pictures taken are loaded into ImageView for display.
public class ActiEnvi extends Activity {
static final String TAG = "ActiEnvi";
private static final int REQ_CODE_CAMERA = 0x1;
private String imgpath = "";
private String tempath = "";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.acti_envi);
......
}
......
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
// Photo taken and returned
if (requestCode == REQ_CODE_CAMERA
&& resultCode == Activity.RESULT_OK) {
this.imgpath = tempath;
Bitmap bm = BitmapFactory.decodeFile(this.imgpath);
imgView.setImageBitmap(bm);
imgView.setScaleType(ScaleType.FIT_CENTER);
}
}
.......
// Call the system camera to take pictures
protected void captureImage() {
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
tempath = IOHelper.generateImgPath();
File out = new File(tempath);
intent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(out));
startActivityForResult(intent, REQ_CODE_CAMERA);
}
......
}
It feels like a weird question. I remember that I did a project before, which was loaded with pictures. After the comparison, I found that there was no problem with the code logic and layout. What was the problem?
Internet search for a long time, no results, feeling mad to the edge... When I was about to give up, I accidentally compared the AndroidManifest.xml file and found a slight difference. The difference was android in users-sdk :targetSdkVersion has and has not. So I changed.
<uses-sdk android:minSdkVersion="8" />
<!-- android:targetSdkVersion="17" -->
I noticed that I commented out android:targetSdkVersion in users-sdk, and when I was debugging, the image was displayed. Why is that?? Suddenly speechless, for god to explain ah...