1.实体类:Device.java
package wlx.test; import android.os.Parcel; import android.os.Parcelable; /** * 注意写入和读出顺序要一致!!! * @author Tracy.Lee * */ public class Device implements Parcelable { private String location; private String name; public Device() { } public Device(String location, String name) { this.location = location; this.name = name; } public String getName() { return name; } public void setName(String name) { this.name = name; } public String getLocation() { return location; } public void setLocation(String location) { this.location = location; } @Override public int describeContents() { return 0; } @Override public void writeToParcel(Parcel dest, int flags) { // 先写位置,后写名称 dest.writeString(location); dest.writeString(name); } public static final Creator<Device> CREATOR = new Creator<Device>() { public Device createFromParcel(Parcel source) { //先构造位置,后构造名称(与构造方法的顺序关联) return new Device(source.readString(), source.readString()); } public Device[] newArray(int size) { return new Device[size]; } }; }
2.传递对象:MainActivity.java
button.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { Intent intent = new Intent(); /* ******* 传递对象 OK********* */ Device device = new Device(); device.setLocation("SRoom"); device.setName("light"); intent.putExtra("device", device); intent.setClass(MainActivity.this, OtherActivity.class); startActivity(intent); } });
3.取对象:OtherActivity.java
Intent intent = getIntent(); /* ******** 取对象 ******** */ Device device = intent.getParcelableExtra("device"); System.out.println("device location--->" + device.getLocation()); System.out.println("device name--->" + device.getName());
4.传递集合:MainActivity.java
button.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { Intent intent = new Intent(); /* ******* 传递集合 OK********* */ ArrayList<Device> devices = new ArrayList<Device>(); Device device = new Device(); device.setLocation("SRoom"); device.setName("light"); Device device1 = new Device(); device1.setLocation("ERoom"); device1.setName("certain"); devices.add(device); devices.add(device1); intent.putParcelableArrayListExtra("devices", devices); intent.setClass(MainActivity.this, SRoomActivity.class); startActivity(intent); } });
5.取集合:OtherActivity.java
Intent intent = getIntent(); /* ******** 取集合 ******** */ ArrayList<Device> devices = intent.getParcelableArrayListExtra("devices"); System.out.println("device1:location---->" + devices.get(0).getLocation()); System.out.println("device1:name---->" + devices.get(0).getName()); System.out.println("device2:location---->" + devices.get(1).getLocation()); System.out.println("device2:name---->" + devices.get(1).getName());