为什么部分文字位于屏幕后面？
我遇到以下问题：textview中的部分文本位于屏幕后面
我不明白为什么通常在我使用class PetrolStationListActivity : AppCompatActivity() {
private lateinit var fusedLocationProviderClient: FusedLocationProviderClient
private lateinit var listView: RecyclerView
private var currentLocation: Location? = null
override fun onRequestPermissionsResult(requestCode: Int, permissions: Array<out String>, grantResults: IntArray) {
//some code
}
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.petrol_station_list_view)
requestLocationPermission()
fusedLocationProviderClient = LocationServices.getFusedLocationProviderClient(this)
getLastLocation()
initPetrolStationList()
}
fun addPetrolStation(v: View) {
if (currentLocation != null) {
val googleMapController = GoogleMapsController()
googleMapController.getPetrolStationFromGoogle(object : GoogleResponse {
override fun getLocation(): Location = currentLocation!!
override fun getResponse(body: GoogleMapResponse) {
if (body.status == "OK") {
val intent = Intent(applicationContext, PetrolStationActivity::class.java)
v.context.startActivity(intent)
} else {
Toast.makeText(applicationContext, "Petrol station not found", Toast.LENGTH_LONG).show()
}
}
})
}
}
@SuppressLint("MissingPermission")
private fun getLastLocation() {
fusedLocationProviderClient.lastLocation.addOnCompleteListener {
if (it.isSuccessful) {
currentLocation = it.result!!
Log.d("Current location: ", "Lat:${currentLocation!!.latitude}, Lng:${currentLocation!!.longitude}")
} else {
Log.d("Location exception: ", it.exception?.message)
Toast.makeText(this, "Location not found :( ", Toast.LENGTH_LONG).show()
}
}
}
private fun initPetrolStationList() {
if (currentLocation != null) {
val petrolStationController = PetrolStationController()
//some code
} else Toast.makeText(this, "Location not found", Toast.LENGTH_LONG).show()
}
}
时会发生这种情况，所以文本有几行并且所有行都在屏幕上。我向所有textview添加了wrap_content，但是仍然发生相同的问题。这是具有所有这些textviews的xml文件：
android:layout_marginEnd="16dp"那么，为什么会发生此问题，我该如何解决呢？
UPD
当我将<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".FilmDetailActivity">
<ImageView
android:id="@+id/avatar_imageview"
android:layout_width="150dp"
android:layout_height="250dp"
android:layout_marginStart="8dp"
android:layout_marginTop="8dp"
android:layout_marginEnd="16dp"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
tools:ignore="ContentDescription" />
<TextView
android:id="@+id/title_textview"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="8dp"
android:layout_marginStart="16dp"
android:layout_marginEnd="16dp"
app:layout_constraintStart_toEndOf="@id/avatar_imageview"
app:layout_constraintTop_toTopOf="parent"/>
<TextView
android:id="@+id/year_textview"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="16dp"
android:layout_marginStart="16dp"
android:layout_marginEnd="16dp"
android:text="@string/year"
app:layout_constraintStart_toEndOf="@id/avatar_imageview"
app:layout_constraintTop_toBottomOf="@id/title_textview"/>
<TextView
android:id="@+id/runtime_textview"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="16dp"
android:layout_marginStart="16dp"
android:layout_marginEnd="16dp"
android:text="@string/runtime"
app:layout_constraintStart_toEndOf="@id/avatar_imageview"
app:layout_constraintTop_toBottomOf="@id/year_textview"/>
<TextView
android:id="@+id/director_textview"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="16dp"
android:layout_marginStart="16dp"
android:layout_marginEnd="16dp"
android:text="@string/director"
app:layout_constraintStart_toEndOf="@id/avatar_imageview"
app:layout_constraintTop_toBottomOf="@id/runtime_textview"/>
<TextView
android:id="@+id/actors_textview"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="16dp"
android:layout_marginStart="16dp"
android:layout_marginEnd="16dp"
android:text="@string/actors"
app:layout_constraintStart_toEndOf="@id/avatar_imageview"
app:layout_constraintTop_toBottomOf="@id/director_textview"/>
<TextView
android:id="@+id/plot_textview"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="16dp"
android:layout_marginStart="16dp"
android:layout_marginEnd="16dp"
android:text="@string/plot"
app:layout_constraintStart_toEndOf="@id/avatar_imageview"
app:layout_constraintTop_toBottomOf="@id/actors_textview" />
<TextView
android:id="@+id/language_textview"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="16dp"
android:layout_marginStart="16dp"
android:layout_marginEnd="16dp"
android:text="@string/language"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@id/plot_textview" />
<TextView
android:id="@+id/country_textview"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="16dp"
android:layout_marginTop="16dp"
android:layout_marginEnd="16dp"
android:text="@string/country"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@id/language_textview" />
<TextView
android:id="@+id/imdb_rating_textview"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="16dp"
android:layout_marginStart="16dp"
android:layout_marginEnd="16dp"
android:text="@string/imdb_rating"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@id/country_textview"/>
</android.support.constraint.ConstraintLayout>
添加到每个app:layout_constraintEnd_toEndOf="parent"时，我面临以下问题：
UPD 2
当我添加TextView时，我发现了相同的问题，
2 个答案:
答案 0 :(得分：2)
在文本视图中将layout_width="wrap_content"更改为layout_width="0dp"。
将app:layout_constraintEnd_toEndOf="parent"添加到您的TextView中以确保它们适合布局
此外，如果您的文本居中对齐，请添加app:layout_constraintHorizontal_bias="0"使其与左侧对齐（“ 1”代表右对齐）
答案 1 :(得分：1)
将app:layout_constraintEnd_toEndOf="parent"（右约束）添加到TextView并将layout_width设置为0dp
这是您的布局的更新版本
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent">
<ImageView
android:id="@+id/avatar_imageview"
android:layout_width="150dp"
android:layout_height="250dp"
android:layout_marginStart="8dp"
android:layout_marginLeft="8dp"
android:layout_marginTop="8dp"
android:layout_marginEnd="16dp"
android:layout_marginRight="8dp"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
tools:ignore="ContentDescription" />
<TextView
android:id="@+id/title_textview"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="16dp"
android:layout_marginTop="8dp"
android:layout_marginEnd="16dp"
app:layout_constraintStart_toEndOf="@id/avatar_imageview"
app:layout_constraintTop_toTopOf="parent" />
<TextView
android:id="@+id/year_textview"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="16dp"
android:layout_marginTop="16dp"
android:layout_marginEnd="16dp"
android:text="2017"
app:layout_constraintStart_toEndOf="@id/avatar_imageview"
app:layout_constraintTop_toBottomOf="@id/title_textview" />
<TextView
android:id="@+id/runtime_textview"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="16dp"
android:layout_marginTop="16dp"
android:layout_marginEnd="16dp"
android:text="2 hours 1 minute"
app:layout_constraintStart_toEndOf="@id/avatar_imageview"
app:layout_constraintTop_toBottomOf="@id/year_textview" />
<TextView
android:id="@+id/director_textview"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="16dp"
android:layout_marginTop="16dp"
android:layout_marginEnd="16dp"
android:text="Mr James Collon"
app:layout_constraintStart_toEndOf="@id/avatar_imageview"
app:layout_constraintTop_toBottomOf="@id/runtime_textview" />
<TextView
android:id="@+id/actors_textview"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginStart="16dp"
android:layout_marginTop="16dp"
android:layout_marginEnd="16dp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toEndOf="@id/avatar_imageview"
app:layout_constraintTop_toBottomOf="@id/director_textview" />
<TextView
android:id="@+id/plot_textview"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginStart="16dp"
android:layout_marginTop="16dp"
android:layout_marginEnd="16dp"
android:text="Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged."
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toEndOf="@id/avatar_imageview"
app:layout_constraintTop_toBottomOf="@id/actors_textview" />
<TextView
android:id="@+id/language_textview"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="16dp"
android:layout_marginTop="16dp"
android:layout_marginEnd="16dp"
android:text="English"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@id/plot_textview" />
<TextView
android:id="@+id/country_textview"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="16dp"
android:layout_marginTop="16dp"
android:layout_marginEnd="16dp"
android:text="India"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@id/language_textview" />
<TextView
android:id="@+id/imdb_rating_textview"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="16dp"
android:layout_marginTop="16dp"
android:layout_marginEnd="16dp"
android:text="7/10"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@id/country_textview" />
</android.support.constraint.ConstraintLayout>
注意：出于演示目的，仅对plot文本视图进行了修复。请对其他文本视图也进行同样的操作。
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