无法显示来自Firebase的图像(使用滑动)
问题描述:
在添加材质设计之前,它在工作,但在更改我的布局(没有更改imageview)后,我无法显示图像。无法显示来自Firebase的图像(使用滑动)
public class DownloadFile extends AppCompatActivity {
ImageView imageview;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_download_file);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
fab.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Snackbar.make(view, "Wait for the action", Snackbar.LENGTH_LONG)
.setAction("Action", null).show();
yukle();
}
});
}
public void yukle(){
FirebaseStorage storage = FirebaseStorage.getInstance();
StorageReference storageRef = storage.getReference();
StorageReference riversRef = storageRef.child("images/pic.jpg");
imageview=(ImageView)findViewById(R.id.imageView);
Glide.with(this)
.using(new FirebaseImageLoader())
.load(riversRef)
.into(imageview);
}
}
我得到以下
03-24 07:41:22.284 22900-22900/com.furkan.profil E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.furkan.profil, PID: 22900
java.lang.IllegalArgumentException: You must pass in a non null View
at com.bumptech.glide.GenericRequestBuilder.into(GenericRequestBuilder.java:678)
at com.bumptech.glide.DrawableRequestBuilder.into(DrawableRequestBuilder.java:448)
at com.furkan.profil.DownloadFile.yukle(DownloadFile.java:58)
at com.furkan.profil.DownloadFile$1.onClick(DownloadFile.java:40)
at android.view.View.performClick(View.java:5198)
at android.view.View$PerformClick.run(View.java:21147)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5417)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
03-24 07:41:30.213 22900-22994/com.furkan.profil W/DynamiteModule: Local module descriptor class for com.google.firebase.auth not found.
误差在火力地堡边,这里是我的规则
service firebase.storage {
match /b/{bucket}/o {
match /{allPaths=**} {
allow read: if true;
allow write: if true;
}
}
}
答
以及您的堆栈跟踪表明您传递滑行的ImageView为空。所以你在findViewById
中设置的参数必须是错的。确保你传递正确的ID,否则发布你的XML,所以我们有更多的信息。
答
,就把这行上您的onCreate
imageview=(ImageView)findViewById(R.id.imageView);
谢谢,我解决了这个问题。问题是我的imageView没有任何ID。我给了他身份证,并解决了问题。再次感谢。 –
不客气:) –