小编hoz*_*man的帖子

我在过去几天看过几篇帖子,我似乎无法弄清楚我的问题是什么.我检查了活动名称,它们是相同的.我也检查了我的清单,我也在.活动前面.

这是我的logcat文件:

02-23 16:48:22.438    1508-1508/com.pctoolman.planme.app E/AndroidRuntime? FATAL   
         EXCEPTION: main
         java.lang.RuntimeException: Unable to instantiate activity     
         ComponentInfo{com.pctoolman.planme.app/com.pctoolman.planme.app.PlanMeMainActivity}:
         java.lang.ClassCastException: com.pctoolman.planme.app.PlanMeMainActivity cannot be 
         cast 
         to android.app.Activity
         at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2137)
         at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2261)
         at android.app.ActivityThread.access$600(ActivityThread.java:141)
         at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1256)
         at android.os.Handler.dispatchMessage(Handler.java:99)
         at android.os.Looper.loop(Looper.java:137)
         at android.app.ActivityThread.main(ActivityThread.java:5103)
         at java.lang.reflect.Method.invokeNative(Native Method)
         at java.lang.reflect.Method.invoke(Method.java:525)
         at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:737)
         at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
         at dalvik.system.NativeStart.main(Native Method)
         Caused by: java.lang.ClassCastException: com.pctoolman.planme.app.PlanMeMainActivity 
         cannot
         be cast to android.app.Activity
         at android.app.Instrumentation.newActivity(Instrumentation.java:1061)
         at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2128)
         at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2261)
         at android.app.ActivityThread.access$600(ActivityThread.java:141)
         at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1256)
         at android.os.Handler.dispatchMessage(Handler.java:99)
         at android.os.Looper.loop(Looper.java:137)
         at android.app.ActivityThread.main(ActivityThread.java:5103)
         at java.lang.reflect.Method.invokeNative(Native Method)
         at java.lang.reflect.Method.invoke(Method.java:525) …

您好我之前询问过有关使用Firebase数据库中的Base64显示图像的问题.建议使用firebase存储.我重新编写了代码,所有内容都加载到firebase存储和数据库中.我遇到的问题是当我保存数据时,没有任何内容填充到我的recyclerview中.一切都是空白的.

你可以提供给我这个工作的任何帮助都会很棒.谢谢.

编辑:在我的活动类中,我调用一个按钮clicklistener来激活相机.拍摄照片后,它将保存到Firebase存储.然后我从存储中下载图像并将其显示在recyclerview中.我理解上传部分,但我很难理解下载和显示部分.谢谢.

viewholder:绑定方法

public void bind (ImageProgress progress){

    Glide.with(activity).load("").into(image);
 }
}

适配器

  @Override
public ProgressViewHolder onCreateViewHolder(ViewGroup parent, int viewType){
    return new ProgressViewHolder(activity, activity.getLayoutInflater().inflate(R.layout.weight_progress_list, parent, false));

主要活动课

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.weight_progress);

    saveButton = (Button) findViewById(R.id.saveButton);
    progressStatusEditText = (EditText) findViewById(R.id.progressStatusEditText);
    progressList = (RecyclerView) findViewById(R.id.progressList);
    mImageButton = (ImageButton) findViewById(R.id.takePictureButton);
    capturedImage=(ImageView)findViewById(R.id.capturedImageView);

    LinearLayoutManager layoutManager = new LinearLayoutManager(this);
    progressList.setHasFixedSize(false);
    progressList.setLayoutManager(layoutManager);

    //take picture button
    mImageButton.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            openCamera();
        }
    });


    mDatabaseReference = database.getReference("Progress");

    saveButton.setOnClickListener(new View.OnClickListener() { …