通过intent

Question

我想通过intent将Object从一个活动传递给另一个活动。但是我得到了这个错误

  

新哈希0在索引1键空值

之前的数组哈希3552645结束之前

活动1：

Intent intent = new Intent(Activity1.this, activity2.class); 
intent.putExtra("mission", mission); 
intent.putExtra("task", task); 
startActivity(intent); 

活动2：

Intent intent = getIntent();
mission = intent.getParcelableExtra("mission"); 
task = intent.getParcelableExtra("task");

这是我的日志：

  

新哈希0在索引1键为null的数组哈希3552645结束之前                                                                  java.lang.RuntimeException：这里                                                                      在android.util.ArrayMap.append（ArrayMap.java:521）                                                                      在android.os.Parcel.readArrayMapInternal（Parcel.java:2618）                                                                      在android.os.BaseBundle.unparcel（BaseBundle.java:221）                                                                      在android.os.Bundle.getParcelable（Bundle.java:786）                                                                      在android.content.Intent.getParcelableExtra（Intent.java:6223）                                                                      在com.iperiatech.sams.mvp.Missions.TaskDetailActivity.onCreate（TaskDetailActivity.java:82）                                                                      在android.app.Activity.performCreate（Activity.java:6877）                                                                      在android.app.Instrumentation.callActivityOnCreate（Instrumentation.java:1136）                                                                      在android.app.ActivityThread.performLaunchActivity（ActivityThread.java:3208）                                                                      在android.app.ActivityThread.handleLaunchActivity（ActivityThread.java:3351）                                                                      在android.app.ActivityThread.access $ 1100（ActivityThread.java:222）                                                                      在android.app.ActivityThread $ H.handleMessage（ActivityThread.java:1796）                                                                      在android.os.Handler.dispatchMessage（Handler.java:102）                                                                      在android.os.Looper.loop（Looper.java:158）                                                                      在android.app.ActivityThread.main（ActivityThread.java:7230）                                                                      at java.lang.reflect.Method.invoke（Native Method）                                                                      在com.android.internal.os.ZygoteInit $ MethodAndArgsCaller.run（ZygoteInit.java:1230）                                                                      在com.android.internal.os.ZygoteInit.main（ZygoteInit.java:1120）

Answer 1

试试这个

Intent intent = new Intent(activity1.this, activity2.class);
Bundle args = new Bundle();
args .putSerializable("mission",(Serializable) mission); 
args.putSerializable("task",(Serializable) task); 
intent.putExtra("DATA", args);
startActivity(intent);

并像这样收到

  Intent myIntent = getIntent();
  Bundle myBundle = myIntent.getBundleExtra("DATA");

  if (myBundle != null) {
      mission = myBundle.getSerializable("mission"); 
      task = myBundle.getSerializable("task");

  }