我知道BottomSheetDialog
已经这样做了,但我需要使用BottomSheet
生成的常规BottomSheetBehavior.from()
和行为。此BottomSheet
不会使背景变暗,而且外部触摸也不会将其关闭。有没有办法在显示BottomSheet
时调暗背景?当外面碰到时可能会解雇。基本上行为就像BottomSheetDialog
一样,但我必须直接使用BottomSheet
BottomSheetBehavior
。
谢谢!
答案 0 :(得分:22)
您可以使用此代码 1. MainActivity.xml
<android.support.design.widget.CoordinatorLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/main_content"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true">
<ScrollView
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="@string/appbar_scrolling_view_behavior">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:paddingTop="24dp">
<Button
android:id="@+id/button_1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Button 1"
android:padding="16dp"
android:layout_margin="8dp"
android:textColor="@android:color/white"
android:background="@android:color/holo_green_dark"/>
</LinearLayout>
</ScrollView>
<View
android:visibility="gone"
android:id="@+id/bg"
android:background="#99000000"
android:layout_width="match_parent"
android:layout_height="match_parent"/>
<android.support.v4.widget.NestedScrollView
android:id="@+id/bottom_sheet"
android:layout_width="match_parent"
android:layout_height="350dp"
android:clipToPadding="true"
android:background="@android:color/holo_orange_light"
app:layout_behavior="android.support.design.widget.BottomSheetBehavior"
>
<TextView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:text="aefwea"
android:padding="16dp"
android:textSize="16sp"/>
</android.support.v4.widget.NestedScrollView>
</android.support.design.widget.CoordinatorLayout>
MAinActivity.java
public class MainActivity extends AppCompatActivity implements View.OnClickListener {
private static final String TAG = "MainActivity";
private BottomSheetBehavior mBottomSheetBehavior;
View bottomSheet;
View mViewBg;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
bottomSheet = findViewById(R.id.bottom_sheet);
mViewBg = findViewById(R.id.mViewBg);
Button button1 = (Button) findViewById(R.id.button_1);
button1.setOnClickListener(this);
mViewBg.setOnClickListener(this);
mBottomSheetBehavior = BottomSheetBehavior.from(bottomSheet);
mBottomSheetBehavior.setBottomSheetCallback(new BottomSheetBehavior.BottomSheetCallback() {
@Override
public void onStateChanged(@NonNull View bottomSheet, int newState) {
if (newState == BottomSheetBehavior.STATE_COLLAPSED)
mViewBg.setVisibility(View.GONE);
}
@Override
public void onSlide(@NonNull View bottomSheet, float slideOffset) {
Log.d(TAG, "onSlide: slideOffset" + slideOffset + "");
mViewBg.setVisibility(View.VISIBLE);
mViewBg.setAlpha(slideOffset);
}
});
}
@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.button_1: {
mBottomSheetBehavior.setState(BottomSheetBehavior.STATE_EXPANDED);
break;
}
case R.id.bg: {
mBottomSheetBehavior.setState(BottomSheetBehavior.STATE_COLLAPSED);
break;
}
}
}
@Override
public boolean dispatchTouchEvent(MotionEvent event) {
if (event.getAction() == MotionEvent.ACTION_DOWN) {
if (mBottomSheetBehavior.getState() == BottomSheetBehavior.STATE_EXPANDED) {
Rect outRect = new Rect();
bottomSheet.getGlobalVisibleRect(outRect);
if (!outRect.contains((int) event.getRawX(), (int) event.getRawY())) {
mBottomSheetBehavior.setState(BottomSheetBehavior.STATE_COLLAPSED);
return true;
}
}
}
return super.dispatchTouchEvent(event);
}
}
答案 1 :(得分:2)
如果你想要我在AlertDialog with Blur background in possition center
中使用我的概念,你可以使用我的概念我的方法
这里我有一个类,用于将背景图像作为位图
public class AppUtils {
public static Bitmap takeScreenShot(Activity activity) {
View view = activity.getWindow().getDecorView();
view.setDrawingCacheEnabled(true);
view.buildDrawingCache();
Bitmap b1 = view.getDrawingCache();
Rect frame = new Rect();
activity.getWindow().getDecorView().getWindowVisibleDisplayFrame(frame);
int statusBarHeight = frame.top;
Display display = activity.getWindowManager().getDefaultDisplay();
Point size = new Point();
display.getSize(size);
int width = size.x;
int height = size.y;
Bitmap b = Bitmap.createBitmap(b1, 0, statusBarHeight, width, height - statusBarHeight);
view.destroyDrawingCache();
return b;
}
}
恭喜你现在有一个与你的背景相同的变暗/暗淡的图像
然后你的要求是暗淡不要像我一样模糊,所以你可以将这个位图传递给下面的方法,
public static Bitmap changeBitmapContrastBrightness(Bitmap bmp, float contrast, float brightness) {
ColorMatrix cm = new ColorMatrix(new float[]
{
contrast, 0, 0, 0, brightness,
0, contrast, 0, 0, brightness,
0, 0, contrast, 0, brightness,
0, 0, 0, 1, 0
});
Bitmap ret = Bitmap.createBitmap(bmp.getWidth(), bmp.getHeight(), bmp.getConfig());
Canvas canvas = new Canvas(ret);
Paint paint = new Paint();
paint.setColorFilter(new ColorMatrixColorFilter(cm));
canvas.drawBitmap(bmp, 0, 0, paint);
return ret;
}
现在使用假的对话框/对话框,仅显示背景/内容以获取窗口(检查我的问题实现,你可以理解)
Window window = fakeDialogUseToGetWindowForBlurEffect.getWindow();
window.setBackgroundDrawable(draw); // draw is bitmap that you created
在此之后你可以显示你的真实视图。在我的情况下,我会显示一个警告,你可以显示你的任何视图,并记住当你的真实视图从屏幕上消失时删除/消除警告!
快速输出 :(可根据需要自定义背景,不仅暗淡)
答案 2 :(得分:2)
您可以创建一个自定义片段,该片段具有附加到底部的布局(底部种类),并使背景为<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/activity_main"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#ff2020"
android:orientation="vertical"
tools:context="com.example.jiffysoftwaresolutions.copypastesampleapp.MainActivity">
<Button
android:id="@+id/show"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Show" />
<FrameLayout
android:id="@+id/bottom_sheet_fragment_container"
android:layout_width="match_parent"
android:layout_height="match_parent"></FrameLayout>
</RelativeLayout>
&amp;当触摸那个BG时删除那个片段。例如:
<强> activity_main.xml中强>
public class MainActivity extends AppCompatActivity {
private BottomSheetFragment bottomSheetFragment;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
findViewById(R.id.show).setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
if (bottomSheetFragment == null) {
bottomSheetFragment = new BottomSheetFragment();
}
getSupportFragmentManager().beginTransaction().add(R.id.bottom_sheet_fragment_container, bottomSheetFragment).addToBackStack(null).commit();
}
});
}
public void removeBottomSheet() {
try {
getSupportFragmentManager().beginTransaction().remove(bottomSheetFragment).addToBackStack(null).commit();
} catch (Exception e) {
}
}
}
<强> MainActivity.java 强>
public class BottomSheetFragment extends Fragment {
private View rootView;
private LayoutInflater layoutInflater;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
layoutInflater = (LayoutInflater) getActivity().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}
@Override
public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
rootView = inflater.inflate(R.layout.bottom_sheet_layout, container, false);
rootView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
// remove sheet on BG touch
((MainActivity) getActivity()).removeBottomSheet();
}
});
return rootView;
}
}
<强> BottomSheetFragment.java 强>
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#6d000000"
android:gravity="bottom">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#fff"
android:orientation="vertical"
android:padding="5dp">
<Button
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Button1"
android:textColor="#000" />
<Button
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Button2"
android:textColor="#000" />
</LinearLayout>
</RelativeLayout>
<强> bottom_sheet_layout.xml 强>
a = 'Good day to you sir and lady.
Hello and good day.'
a.gsub!('Good day', 'Hellor').gsub!('good day', 'hellor')
要使用bottom_top / animation添加该片段..您可以点击此链接:Android Fragments and animation
答案 3 :(得分:1)
使用接口-onSlide,它可以将float类型的参数slideOffSet用作背景变暗。此底页的新偏移量在[-1,1]范围内。随着此底纸向上移动,偏移量增加。从0到1,工作表介于折叠状态和展开状态之间;从-1到0,工作表介于隐藏状态和折叠状态之间。
if ( slideOffSet>=0 && slideOffSet<=1 ) {
mainActivityLayoutView.setAlpha( 1f - slideOffSet );
}
其中mainActivityLayoutView是NestedScrollView的ID,用于保存活动的主要内容。
答案 4 :(得分:0)
如果实现 BottomSheetBehavior
的视图位于不同的 Activity 中,您可以使用以下解决方案
为了使您的活动背景透明+变暗,请为您的活动添加以下样式
<style name="Your.Transparent.Style">
<!-- Found no solution for setting the status bar color to fully transparent
from within the style. Had to resort to programmatically setting -->
<item name="android:windowBackground">@color/transparent</item>
<item name="android:backgroundDimEnabled">true</item>
</style>
在你的 AndroidManifest.xml 中设置活动主题
<activity
android:name="your.activity"
android:theme="@style/Your.Transparent.Style" />
将状态栏颜色设置为完全透明(仅适用于 API >= 21)
// Inside your activity's onCreate
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setStatusBarTransparent(window)
fun setStatusBarTransparent(window: Window) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
window.addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS)
window.clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS)
window.statusBarColor = Color.TRANSPARENT
}
}
最后,为了在单击工作表内容外部时隐藏底部工作表,请扩展 BottomSheetBehavior
class AutoCloseBottomSheetBehavior<V : View>(
context: Context,
attrs: AttributeSet
) : BottomSheetBehavior<V>(context, attrs) {
@SuppressLint("ClickableViewAccessibility")
override fun onLayoutChild(parent: CoordinatorLayout, child: V, layoutDirection: Int): Boolean {
parent.setOnTouchListener { _, event ->
if (event.action == MotionEvent.ACTION_DOWN) {
val outRect = Rect()
child.getGlobalVisibleRect(outRect)
if (!outRect.contains(event.rawX.toInt(), event.rawY.toInt())) {
state = STATE_HIDDEN
return@setOnTouchListener true
}
}
return@setOnTouchListener false
}
return super.onLayoutChild(parent, child, layoutDirection)
}
}
并为您的视图行为设置它
<?xml version="1.0" encoding="utf-8"?>
<androidx.coordinatorlayout.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
>
<Your.View.Acting.As.BottomSheet
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior=".your.path.AutoCloseBottomSheetBehavior" />
</androidx.coordinatorlayout.widget.CoordinatorLayout>
答案 5 :(得分:-1)
使用此样式并应用于对话框。
PS:这种风格在Android 6.0,6.1和7.0中也很完美。
<style name="MaterialDialogSheet" parent="@android:style/Theme.Dialog">
<item name="android:windowIsTranslucent">true</item>
<item name="android:windowBackground">@android:color/transparent</item>
<item name="android:windowContentOverlay">@null</item>
<item name="android:windowNoTitle">true</item>
<item name="android:backgroundDimEnabled">true</item>
<item name="android:windowIsFloating">false</item>
<item name="android:windowAnimationStyle">@style/MaterialDialogSheetAnimation</item>
</style>
<style name="MaterialDialogSheetAnimation">
<item name="android:windowEnterAnimation">@anim/popup_show</item>
<item name="android:windowExitAnimation">@anim/popup_hide</item>
</style>
并用作:
final Dialog mBottomSheetDialog = new Dialog(mActivity, R.style.MaterialDialogSheet);
感谢。