Это базовый c пример создания настраиваемого перетаскиваемого ящика.
Это ссылки, которые я просмотрел.
Для обнаружения жеста перетаскивания я использовал GestureDetectorCompat, и Я сослался на: https://developer.android.com/training/gestures/detector
Чтобы создать анимацию открытия и закрытия ящика, я упомянул: https://youtu.be/OHcfs6rStRo
Обратите внимание, что это очень простой пример c. Вы можете использовать это как основу для создания своей конечной цели. Вам нужно будет отфильтровать нежелательные обратные вызовы перетаскивания, которые вы получаете. Вам придется игнорировать нажатия, которые вы получите на ящике.
Вот реализация.
MainActivity. java
import androidx.appcompat.app.AppCompatActivity;
import androidx.constraintlayout.widget.ConstraintLayout;
import androidx.constraintlayout.widget.ConstraintSet;
import androidx.core.view.GestureDetectorCompat;
import android.os.Bundle;
import android.transition.TransitionManager;
import android.view.GestureDetector;
import android.view.MotionEvent;
public class MainActivity extends AppCompatActivity {
private boolean mIsDrawerOpened;
private ConstraintLayout mRootConstraintLayout;
private final ConstraintSet mDrawerClosedConstraintSet = new ConstraintSet();
private final ConstraintSet mDrawerOpenedConstraintSet = new ConstraintSet();
private GestureDetectorCompat mGestureDetector;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main_drawer_closed);
// Drawer is initially closed
mIsDrawerOpened = false;
mRootConstraintLayout = findViewById(R.id.rootConstraintLayout);
mDrawerClosedConstraintSet.clone(this, R.layout.activity_main_drawer_closed);
mDrawerOpenedConstraintSet.clone(this, R.layout.activity_main_drawer_opened);
mGestureDetector = new GestureDetectorCompat(
getApplicationContext(),
new GestureDetector.SimpleOnGestureListener() {
@Override
public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) {
// Drag / Fling gesture detected
// TODO: Recongnize unwanted drag / fling gestures and ignore them.
TransitionManager.beginDelayedTransition(mRootConstraintLayout);
// Drawer is closed?
if(!mIsDrawerOpened) {
// Open the drawer
mDrawerOpenedConstraintSet.applyTo(mRootConstraintLayout);
mIsDrawerOpened = true;
}
return true;
}
@Override
public boolean onSingleTapUp(MotionEvent e) {
// Single tap detected
// TODO: If user has tapped on the drawer, do not close it.
TransitionManager.beginDelayedTransition(mRootConstraintLayout);
// Drawer is opened?
if(mIsDrawerOpened) {
// Close the drawer
mDrawerClosedConstraintSet.applyTo(mRootConstraintLayout);
mIsDrawerOpened = false;
}
return true;
}
@Override
public boolean onDown(MotionEvent e) {
return true;
}
}
);
}
@Override
public boolean onTouchEvent(MotionEvent event) {
mGestureDetector.onTouchEvent(event);
return super.onTouchEvent(event);
}
}
res / layout / activity_main_drawer_closed. xml
<ConstraintLayout
android:id="@+id/rootConstraintLayout"
android:clipChildren="false" >
<ConstraintLayout
android:id="@+id/drawerConstraintLayout"
android:layout_width="152dp"
android:layout_height="108dp"
android:background="@color/colorPrimaryDark"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintStart_toEndOf="parent" >
<Button
android:id="@+id/button1"
android:layout_width="52dp"
android:layout_height="52dp"
android:text="1"
android:backgroundTint="@color/colorAccent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintEnd_toStartOf="@id/button2" />
<Button
android:id="@+id/button2"
android:layout_width="52dp"
android:layout_height="52dp"
android:text="2"
android:backgroundTint="@color/colorAccent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintStart_toEndOf="@id/button1"
app:layout_constraintEnd_toEndOf="parent" />
</ConstraintLayout>
<ImageView
android:id="@+id/notch"
android:layout_width="8dp"
android:layout_height="72dp"
android:src="@drawable/drawer_notch"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toStartOf="@id/drawerConstraintLayout" />
</ConstraintLayout>
res / layout / activity_main_drawer_opened. xml
<ConstraintLayout
android:id="@+id/rootConstraintLayout" >
<ConstraintLayout
android:id="@+id/drawerConstraintLayout"
android:layout_width="152dp"
android:layout_height="108dp"
android:background="@color/colorPrimaryDark"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent" >
<Button
android:id="@+id/button1"
android:layout_width="52dp"
android:layout_height="52dp"
android:text="1"
android:backgroundTint="@color/colorAccent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintEnd_toStartOf="@id/button2" />
<Button
android:id="@+id/button2"
android:layout_width="52dp"
android:layout_height="52dp"
android:text="2"
android:backgroundTint="@color/colorAccent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintStart_toEndOf="@id/button1"
app:layout_constraintEnd_toEndOf="parent" />
</ConstraintLayout>
<ImageView
android:id="@+id/notch"
android:layout_width="8dp"
android:layout_height="72dp"
android:src="@drawable/drawer_notch"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toStartOf="@id/drawerConstraintLayout" />
</ConstraintLayout>
res / drawable / drawable_notch. xml
<shape
android:shape="rectangle">
<corners android:radius="4dp" />
<solid android:color="@color/colorAccent" />
</shape>
app / build.gradle
android {
defaultConfig {
minSdkVersion 19
.
.
.
}
.
.
.
}
Результат: