本文整理了Java中android.os.Parcel.setDataPosition()方法的一些代码示例，展示了Parcel.setDataPosition()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Parcel.setDataPosition()方法的具体详情如下：
包路径：android.os.Parcel
类名称：Parcel
方法名：setDataPosition

Parcel.setDataPosition介绍

[英]Move the current read/write position in the parcel.
[中]移动地块中的当前读/写位置。

代码示例

代码示例来源：origin: robolectric/robolectric

private static PackageInfo newPackageInfo(PackageInfo orig) {
 Parcel parcel = Parcel.obtain();
 orig.writeToParcel(parcel, 0);
 parcel.setDataPosition(0);
 return PackageInfo.CREATOR.createFromParcel(parcel);
}

代码示例来源：origin: robolectric/robolectric

@Test
public void testReadWriteSingleInt() {
 int val = 5;
 parcel.writeInt(val);
 parcel.setDataPosition(0);
 assertThat(parcel.readInt()).isEqualTo(val);
}

代码示例来源：origin: robolectric/robolectric

/** Returns a copy of {@code automaticZenRule}. */
private AutomaticZenRule copyAutomaticZenRule(AutomaticZenRule automaticZenRule) {
 Parcel parcel = Parcel.obtain();
 try {
  automaticZenRule.writeToParcel(parcel, /* flags= */ 0);
  parcel.setDataPosition(0);
  return new AutomaticZenRule(parcel);
 } finally {
  parcel.recycle();
 }
}

代码示例来源：origin: robolectric/robolectric

@Test
public void testReadWriteMultipleInts() {
 for (int i = 0; i < 10; ++i) {
  parcel.writeInt(i);
 }
 parcel.setDataPosition(0);
 for (int i = 0; i < 10; ++i) {
  assertThat(parcel.readInt()).isEqualTo(i);
 }
 // now try to read past the number of items written and see what happens
 assertThat(parcel.readInt()).isEqualTo(0);
}

代码示例来源：origin: robolectric/robolectric

private static UserHandle newUserHandle(int uid) {
  Parcel userParcel = Parcel.obtain();
  userParcel.writeInt(uid);
  userParcel.setDataPosition(0);
  return new UserHandle(userParcel);
 }
}

代码示例来源：origin: robolectric/robolectric

@Test
public void testParcelableWithBase() throws Exception {
 TestParcelableImpl normal = new TestParcelableImpl(23);
 parcel.writeParcelable(normal, 0);
 parcel.setDataPosition(0);
 TestParcelableImpl rehydrated = parcel.readParcelable(TestParcelableImpl.class.getClassLoader());
 assertEquals(normal.contents, rehydrated.contents);
}

代码示例来源：origin: robolectric/robolectric

@Test
public void testParcelableWithPublicClass() throws Exception {
 TestParcelable normal = new TestParcelable(23);
 parcel.writeParcelable(normal, 0);
 parcel.setDataPosition(0);
 TestParcelable rehydrated = parcel.readParcelable(TestParcelable.class.getClassLoader());
 assertEquals(normal.contents, rehydrated.contents);
}

代码示例来源：origin: robolectric/robolectric

@Test
public void testReadWriteMap() throws Exception {
 HashMap<String, String> original = new HashMap<>();
 original.put("key", "value");
 parcel.writeMap(original);
 parcel.setDataPosition(0);
 HashMap<String, String> rehydrated = parcel.readHashMap(null);
 assertEquals("value", rehydrated.get("key"));
}

代码示例来源：origin: robolectric/robolectric

@Test
public void testByteArrayToleratesZeroes() {
 parcel.writeInt(19); // Length
 parcel.writeInt(0); // These are zero
 parcel.writeLong(0); // This is zero
 parcel.writeFloat(0.0f); // This is zero
 parcel.writeByteArray(new byte[0]); // This is also zero
 assertThat(parcel.dataSize()).isEqualTo(24);
 parcel.setDataPosition(0);
 assertThat(parcel.createByteArray()).isEqualTo(new byte[19]);
}

代码示例来源：origin: robolectric/robolectric

@Test
public void testReadWriteSingleStringEvenLength() {
 String val = "test";
 parcel.writeString(val);
 parcel.setDataPosition(0);
 assertThat(parcel.readString()).isEqualTo(val);
 assertWithMessage("4B length + 4*2B data + 2B null char + 2B padding")
   .that(parcel.dataSize())
   .isEqualTo(16);
}

代码示例来源：origin: robolectric/robolectric

@Test
public void testWriteAndCreateNullIntArray() throws Exception {
 parcel.writeIntArray(null);
 parcel.setDataPosition(0);
 assertThat(parcel.createIntArray()).isNull();
}

代码示例来源：origin: robolectric/robolectric

@Test
public void testWriteAndCreateNullStringArray() throws Exception {
 parcel.writeStringArray(null);
 parcel.setDataPosition(0);
 assertThat(parcel.createStringArray()).isNull();
}

代码示例来源：origin: robolectric/robolectric

@Test
public void testCreateStringArray() {
 String[] strs = { "a1", "b2" };
 parcel.writeStringArray(strs);
 parcel.setDataPosition(0);
 String[] newStrs = parcel.createStringArray();
 assertTrue(Arrays.equals(strs, newStrs));
}

代码示例来源：origin: robolectric/robolectric

@Test(expected = RuntimeException.class)
public void testWriteAndReadByteArray_nullNotAllowed() {
 parcel.writeByteArray(null);
 assertThat(parcel.dataSize()).isEqualTo(4);
 parcel.setDataPosition(0);
 byte[] actualBytes = new byte[1];
 parcel.readByteArray(actualBytes);
}

代码示例来源：origin: google/ExoPlayer

@Test
public void testEventMessageParcelable() {
 EventMessage eventMessage = new EventMessage("urn:test", "123", 3000, 1000403,
   new byte[] {0, 1, 2, 3, 4}, 1000);
 // Write to parcel.
 Parcel parcel = Parcel.obtain();
 eventMessage.writeToParcel(parcel, 0);
 // Create from parcel.
 parcel.setDataPosition(0);
 EventMessage fromParcelEventMessage = EventMessage.CREATOR.createFromParcel(parcel);
 // Assert equals.
 assertThat(fromParcelEventMessage).isEqualTo(eventMessage);
}

代码示例来源：origin: robolectric/robolectric

@Test
public void shouldHaveParcelConstructor() throws Exception {
 Account expected = new Account("name", "type");
 Parcel p = Parcel.obtain();
 expected.writeToParcel(p, 0);
 p.setDataPosition(0);
 Account actual = new Account(p);
 assertThat(actual).isEqualTo(expected);
}

代码示例来源：origin: google/ExoPlayer

@Test
public void testParcelable() {
 DrmInitData drmInitDataToParcel = new DrmInitData(DATA_1, DATA_2);
 Parcel parcel = Parcel.obtain();
 drmInitDataToParcel.writeToParcel(parcel, 0);
 parcel.setDataPosition(0);
 DrmInitData drmInitDataFromParcel = DrmInitData.CREATOR.createFromParcel(parcel);
 assertThat(drmInitDataFromParcel).isEqualTo(drmInitDataToParcel);
 parcel.recycle();
}

代码示例来源：origin: google/ExoPlayer

@Test
 public void testParcelable() {
  MdtaMetadataEntry mdtaMetadataEntryToParcel =
    new MdtaMetadataEntry("test", new byte[] {1, 2}, 3, 4);

  Parcel parcel = Parcel.obtain();
  mdtaMetadataEntryToParcel.writeToParcel(parcel, 0);
  parcel.setDataPosition(0);

  MdtaMetadataEntry mdtaMetadataEntryFromParcel =
    MdtaMetadataEntry.CREATOR.createFromParcel(parcel);
  assertThat(mdtaMetadataEntryFromParcel).isEqualTo(mdtaMetadataEntryToParcel);

  parcel.recycle();
 }
}

代码示例来源：origin: robolectric/robolectric

@Test
public void testWriteAndCreateByteArray_oddLength() {
 byte[] bytes = new byte[] {-1, 2, 3, 127, -128};
 parcel.writeByteArray(bytes);
 assertWithMessage("4B length + 5B data + 3B padding").that(parcel.dataSize()).isEqualTo(12);
 parcel.setDataPosition(0);
 assertThat(parcel.createByteArray()).isEqualTo(bytes);
}

代码示例来源：origin: google/ExoPlayer

@Test
 public void testParcelable() {
  Format format1 = Format.createSampleFormat("1", MimeTypes.VIDEO_H264, 0);
  Format format2 = Format.createSampleFormat("2", MimeTypes.AUDIO_AAC, 0);

  TrackGroup trackGroupToParcel = new TrackGroup(format1, format2);

  Parcel parcel = Parcel.obtain();
  trackGroupToParcel.writeToParcel(parcel, 0);
  parcel.setDataPosition(0);

  TrackGroup trackGroupFromParcel = TrackGroup.CREATOR.createFromParcel(parcel);
  assertThat(trackGroupFromParcel).isEqualTo(trackGroupToParcel);

  parcel.recycle();
 }
}