你好，我尝试覆盖对话框片段的主题以实现全屏，但我想要的全屏是一个覆盖在之前活动之上的叠加层，因此当打开对话框片段时，我们仍然可以从屏幕和对话框片段之间的填充看到后面的活动。
这是我用于全屏的样式
<style name="fullscreen_dialog" parent="android:Theme" >
<item name="android:windowNoTitle">true</item>
<item name="android:windowFullscreen">true</item>
<item name="android:windowIsFloating">false</item>
</style>
这是我想出来用来解决您问题的方法:
@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
Dialog dialog = super.onCreateDialog(savedInstanceState);
dialog.getWindow().requestFeature(Window.FEATURE_NO_TITLE);
return dialog;
}
@Override
public void onStart() {
super.onStart();
Dialog dialog = getDialog();
if (dialog != null) {
dialog.getWindow().setLayout(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT);
dialog.getWindow().setBackgroundDrawable(new ColorDrawable(Color.TRANSPARENT));
}
}
以下解决方案完美地适用于我。
为 Fragment 对话框创建如下样式：
<style name="dialog_theme" parent="android:Theme" >
<item name="android:windowNoTitle">true</item>
<item name="android:windowIsFloating">false</item>
</style>
Create your java class as below:
->创建以下Java类：
public class FiltersDialogFragment extends android.support.v4.app.DialogFragment {
static FiltersDialogFragment newInstance() {
FiltersDialogFragment fragment = new FiltersDialogFragment();
return fragment;
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setStyle(DialogFragment.STYLE_NORMAL, R.style.dialog_theme);
}
@Override
public void onStart() {
super.onStart();
Dialog d = getDialog();
if (d!=null){
int width = ViewGroup.LayoutParams.MATCH_PARENT;
int height = ViewGroup.LayoutParams.MATCH_PARENT;
d.getWindow().setLayout(width, height);
}
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.dialog_filters, container, false);
return view;
}
}
快乐编程!!!
你也可以做类似这样的事情 -
@Override
public void onCreate(@Nullable final Bundle savedInstanceState) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
setStyle(STYLE_NO_TITLE, android.R.style.Theme_Material_Light_NoActionBar_Fullscreen);
} else {
setStyle(STYLE_NO_TITLE, android.R.style.Theme_DeviceDefault_Light_NoActionBar);
}
super.onCreate(savedInstanceState);
}
<style name="Dialog.App" parent="Theme.AppCompat.Dialog"></style>
<style name="Dialog.App.Fullscreen">
<item name="android:windowActionBar">false</item>
<item name="android:windowNoTitle">true</item>
<item name="android:windowContentOverlay">@null</item>
<item name="android:colorBackground">@null</item>
<item name="android:colorBackgroundCacheHint">@null</item>
<item name="android:windowFrame">@null</item>
<item name="android:windowBackground">@null</item>
<!--the key attribute for fullscreen dialog -->
<item name="android:windowIsFloating">false</item>
<!-- only width fill screen -->
<!--<item name="android:windowMinWidthMajor">100%</item>-->
<!--<item name="android:windowMinWidthMinor">100%</item>-->
</style>
getDialog().getWindow().addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS);
getDialog().getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
Window window = myDialog.getWindow();
window.setLayout(LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT);
顺便说一下，我不得不设置一个特殊的样式，它是从@style/Base.Theme.AppCompat.Light子类化而来的。否则，支持库字段都看起来不对。如果你使用@style/Base.Theme.AppCompat.Light.Dialog，它会创建那种浮动的外观，而我并不想要。
如果以上方法都不起作用（就像对我来说一样），请参考Android开发者对话框指南，获取更多有关如何实现此功能的信息。
public void showDialog() {
FragmentManager fragmentManager = getSupportFragmentManager();
CustomDialogFragment newFragment = new CustomDialogFragment();
if (mIsLargeLayout) {
// The device is using a large layout, so show the fragment as a dialog
newFragment.show(fragmentManager, "dialog");
} else {
// The device is smaller, so show the fragment fullscreen
FragmentTransaction transaction = fragmentManager.beginTransaction();
// For a little polish, specify a transition animation
transaction.setTransition(FragmentTransaction.TRANSIT_FRAGMENT_OPEN);
// To make it fullscreen, use the 'content' root view as the container
// for the fragment, which is always the root view for the activity
transaction.add(android.R.id.content, newFragment)
.addToBackStack(null).commit();
}
}
如果像我一样，使用上述策略后ActionBar仍然显示，您需要在UI上设置一些标志。
private fun hideSystemUI() {
// Enables regular immersive mode.
// For "lean back" mode, remove SYSTEM_UI_FLAG_IMMERSIVE.
// Or for "sticky immersive," replace it with SYSTEM_UI_FLAG_IMMERSIVE_STICKY
window.decorView.systemUiVisibility = (View.SYSTEM_UI_FLAG_IMMERSIVE
// Set the content to appear under the system bars so that the
// content doesn't resize when the system bars hide and show.
or View.SYSTEM_UI_FLAG_LAYOUT_STABLE
or View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION
or View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
// Hide the nav bar and status bar
or View.SYSTEM_UI_FLAG_HIDE_NAVIGATION
or View.SYSTEM_UI_FLAG_FULLSCREEN)
}
有一种方法可以改变样式和主题。
/* theme is optional, I am using leanback... */
setStyle(STYLE_NORMAL, R.style.AppTheme_Leanback);
我测试过简单布局，全屏工作得非常好。