标题是,我似乎无法调暗我所做的自定义对话框的背景.无数解决方案在线提到了下面第一个代码段中的最后3行代码,这对对话框的UI没有任何影响.
请参阅以下代码：
Dialog dialog = new Dialog(MainActivity.this);
dialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
dialog.setContentView(R.layout.dialog);
TextView textView = (TextView) dialog.findViewById(R.id.textView);
textView.setText("Custom Text Example");
dialog.show();
WindowManager.LayoutParams layoutParams = dialog.getWindow().getAttributes();
layoutParams.dimAmount = .7f;
dialog.getWindow().setAttributes(layoutParams);
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/progressDialogCustom"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@drawable/dialog_black"
android:orientation="horizontal"
android:padding="10dp" >
<ProgressBar
android:id="@+id/progressBar1"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<TextView
android:id="@+id/textView"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:gravity="center_vertical"
android:textColor="@android:color/white"
android:text="Updating Profile . . ." />
</LinearLayout>
@ drawable / dialog_black文件如下：
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle" >
<solid android:color="@android:color/background_dark" />
<corners
android:bottomLeftRadius="7dp"
android:bottomRightRadius="7dp"
android:topLeftRadius="7dp"
android:topRightRadius="7dp" />
<stroke
android:width="1px"
android:color="@android:color/darker_gray" />
<padding
android:bottom="5dp"
android:left="5dp"
android:right="5dp"
android:top="5dp" />
</shape>
