如何正确更改材质设计的对话框正面按钮背景
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【中文标题】如何正确更改材质设计的对话框正面按钮背景【英文标题】:How to change material designed dialog positive button background correctly 【发布时间】:2016-08-26 20:07:44 【问题描述】:我有以下对话框
它是使用以下代码创建的
@Override
public Dialog onCreateDialog(Bundle savedInstanceState)
Random random = new Random();
// 0 or 1.
final int value = random.nextInt(2);
final int title = R.string.we_love_you_0;
final int content = R.string.rate_us_with_5_stars_review_0;
final AlertDialog dialog = new AlertDialog.Builder(this.getActivity())
.setTitle(title)
.setMessage(content)
// Add action buttons
.setPositiveButton(R.string.rate_5_stars, new DialogInterface.OnClickListener()
@Override
public void onClick(DialogInterface dialog, int id)
)
.setNegativeButton(R.string.no, new DialogInterface.OnClickListener()
public void onClick(DialogInterface dialog, int id)
)
.setNeutralButton(R.string.later, new DialogInterface.OnClickListener()
public void onClick(DialogInterface dialog, int id)
)
.create();
dialog.setCanceledOnTouchOutside(false);
return dialog;
因此,我们希望将用户的注意力吸引到正面按钮 (RATE 5 STARS)。我们倾向于
按钮文本颜色为白色 按钮背景颜色为蓝色我们在返回dialog
之前添加以下代码
dialog.setOnShowListener(new DialogInterface.OnShowListener()
@Override
public void onShow(DialogInterface d)
Button positiveButton = dialog.getButton(AlertDialog.BUTTON_POSITIVE);
positiveButton.setTextColor(rateAppDialogPositiveButtonTextColor);
positiveButton.setBackgroundColor(rateAppDialogPositiveButtonBackgroundColor);
);
我们得到以下结果
它没有达到我们想要的效果
正按钮丢失了其默认边距和内边距信息。 按下正面按钮的波纹选择器行为消失了。这是在按下普通按钮的情况下进行比较的方式。在我们的例子中,当我们按下正面按钮时,视觉上没有变化。
是否有适当的方法来更改材质设计的对话框正按钮背景,而不会丢失其默认边距、填充和波纹选择器行为?
【问题讨论】:
为了实现这样的功能,你应该使用自定义对话框而不是使用 AlertDialog 通过创建自定义布局来膨胀。 创建一个自定义布局并在您的对话框中填充它... @Cheok Yan Cheng 在下面看到我的更新答案。 【参考方案1】:像这样创建自定义对话框,这样你就可以给它颜色。
只是一个简单的!在 Java 类的任何地方创建一个对话框方法,类似这样:
public void openDialog()
final Dialog dialog = new Dialog(context); // Context, this, etc.
dialog.setContentView(R.layout.dialog_demo);
dialog.setTitle(R.string.dialog_title);
dialog.show();
现在创建 Layout XML dialog_demo.xml
并创建您的 UI/设计。这是我为演示目的创建的示例:
<?xml version="1.0" encoding="utf-8"?>
<TextView
android:id="@+id/textview1"
android:layout_
android:layout_
android:padding="10dp"
android:textColor="#000000"
android:text="We love you!"
android:textStyle="bold"
android:layout_marginLeft="10dp"
android:textSize="16sp"/>
<TextView
android:id="@+id/textview2"
android:layout_below="@+id/textview1"
android:layout_
android:layout_
android:textColor="#000000"
android:text="Can we assume that the feeling's mutual ?"
android:layout_marginLeft="20dp"
android:layout_marginRight="30dp"
android:textSize="16sp"/>
<TextView
android:id="@+id/textview3"
android:layout_below="@+id/textview2"
android:layout_
android:layout_
android:textColor="#000000"
android:text="If you've been enjoying our app, we'd really appreciate it if you could leave us a nice revire in the market."
android:layout_marginLeft="20dp"
android:layout_marginTop="10dp"
android:layout_marginRight="30dp"
android:textSize="16sp"/>
<TextView
android:id="@+id/textview4"
android:layout_below="@+id/textview3"
android:layout_
android:layout_
android:textColor="#000000"
android:text="It'll really help us grow ?"
android:layout_marginLeft="20dp"
android:layout_marginRight="30dp"
android:layout_marginTop="10dp"
android:textSize="16sp"/>
<Button
android:id="@+id/dialog_later"
android:layout_
android:layout_below="@+id/textview4"
android:layout_
android:textColor="#0072BA"
android:textSize="14sp"
android:textStyle="bold"
android:layout_marginTop="10dp"
android:background="@android:color/transparent"
android:text="LATER"/>
<Button
android:id="@+id/dialog_no"
android:layout_
android:layout_below="@+id/textview4"
android:layout_
android:textColor="#0072BA"
android:textSize="14sp"
android:textStyle="bold"
android:layout_marginTop="10dp"
android:layout_marginLeft="60dp"
android:background="@android:color/transparent"
android:text="NO"/>
<Button
android:id="@+id/dialog_ratestar"
android:layout_
android:layout_below="@+id/textview4"
android:layout_
android:textColor="#FFFFFF"
android:textSize="14sp"
android:textStyle="bold"
android:layout_marginTop="10dp"
android:layout_marginLeft="100dp"
android:background="#0072BA"
android:layout_alignParentEnd="true"
android:layout_alignParentRight="true"
android:layout_marginRight="10dp"
android:padding="5dp"
android:text="RATE 5 STARS *"/>
现在你可以在任何你喜欢的地方拨打openDialog()
:) 这是上面代码的截图。
请注意,strings.xml
和 colors.xml
使用的文本和颜色。你可以自己定义。
【讨论】:
@Cheok Yan Cheng 你看到我的回答了吗? 这并不能解决问题。您的“RATE 5 STARS”按钮如何与“NO”按钮具有相同的边距、填充和选择器行为? @CheokYanCheng 你想要什么给我一些规格,以便我可以帮助你。 @CheokYanCheng 如果你想要ripple effect
然后create
可绘制文件并将其设置为Button
背景并在可绘制文件中设置ripple effect
。【参考方案2】:
通过引用https://***.com/a/27505229/72437,我能够更改正按钮的背景,而不会影响其默认边距、填充和选择器行为。
请注意,我们不使用colorButtonNormal
,因为无法更改 Java 代码中的按钮样式。
dimens.xml
<?xml version="1.0" encoding="utf-8"?>
<resources>
<!-- Default insets (outer padding) around buttons -->
<dimen name="button_inset_vertical_material">6dp</dimen>
<dimen name="button_inset_horizontal_material">@dimen/control_inset_material</dimen>
<!-- Default inner padding within buttons -->
<dimen name="button_padding_vertical_material">@dimen/control_padding_material</dimen>
<dimen name="button_padding_horizontal_material">8dp</dimen>
<!-- Default insets (outer padding) around controls -->
<dimen name="control_inset_material">4dp</dimen>
<!-- Default inner padding within controls -->
<dimen name="control_padding_material">4dp</dimen>
<!-- Default rounded corner for controls -->
<dimen name="control_corner_material">2dp</dimen>
</resources>
colors.xml
<color name="rate_app_dialog_positive_button_text_color_material_light">#ffffffff</color>
<color name="rate_app_dialog_positive_button_background_color_material_light">#ff0091ea</color>
<color name="rate_app_dialog_positive_button_pressed_background_color_material_light">#7f0091ea</color>
attrs.xml
<attr name="rateAppDialogPositiveButtonTextColor" format="color" />
<attr name="rateAppDialogPositiveButtonSelector" format="color" />
drawable-v21/rate_app_dialog_positive_button_selector_for_ripple_material_light.xml
<?xml version="1.0" encoding="utf-8"?>
<!-- Used as the canonical button shape. -->
<inset xmlns:android="http://schemas.android.com/apk/res/android"
android:insetLeft="@dimen/button_inset_horizontal_material"
android:insetTop="@dimen/button_inset_vertical_material"
android:insetRight="@dimen/button_inset_horizontal_material"
android:insetBottom="@dimen/button_inset_vertical_material">
<shape android:shape="rectangle"
android:tint="@color/rate_app_dialog_positive_button_background_color_material_light">
<corners android:radius="@dimen/control_corner_material" />
<solid android:color="#ffffffff" />
<padding android:left="@dimen/button_padding_horizontal_material"
android:top="@dimen/button_padding_vertical_material"
android:right="@dimen/button_padding_horizontal_material"
android:bottom="@dimen/button_padding_vertical_material" />
</shape>
</inset>
drawable-v21/rate_app_dialog_positive_button_selector_material_light.xml
<?xml version="1.0" encoding="utf-8"?>
<!-- https://***.com/questions/28484369/what-should-be-the-color-of-the-ripple-colorprimary-or-coloraccent-material-d -->
<ripple xmlns:android="http://schemas.android.com/apk/res/android"
android:color="@color/ripple_material_dark">
<!-- @color/ripple_material_light -->
<!-- @color/ripple_material_dark -->
<item android:drawable="@drawable/rate_app_dialog_positive_button_selector_for_ripple_material_light" />
</ripple>
drawable/rate_app_dialog_positive_button_selector_material_light.xml
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<!-- pressed state -->
<item android:state_pressed="true">
<inset xmlns:android="http://schemas.android.com/apk/res/android"
android:insetLeft="@dimen/button_inset_horizontal_material"
android:insetTop="@dimen/button_inset_vertical_material"
android:insetRight="@dimen/button_inset_horizontal_material"
android:insetBottom="@dimen/button_inset_vertical_material">
<shape android:shape="rectangle">
<corners android:radius="@dimen/control_corner_material" />
<solid android:color="@color/rate_app_dialog_positive_button_pressed_background_color_material_light" />
<padding android:left="@dimen/button_padding_horizontal_material"
android:top="@dimen/button_padding_vertical_material"
android:right="@dimen/button_padding_horizontal_material"
android:bottom="@dimen/button_padding_vertical_material" />
</shape>
</inset>
</item>
<!-- focused state -->
<item android:state_focused="true">
<inset xmlns:android="http://schemas.android.com/apk/res/android"
android:insetLeft="@dimen/button_inset_horizontal_material"
android:insetTop="@dimen/button_inset_vertical_material"
android:insetRight="@dimen/button_inset_horizontal_material"
android:insetBottom="@dimen/button_inset_vertical_material">
<shape android:shape="rectangle">
<corners android:radius="@dimen/control_corner_material" />
<solid android:color="@color/rate_app_dialog_positive_button_pressed_background_color_material_light" />
<padding android:left="@dimen/button_padding_horizontal_material"
android:top="@dimen/button_padding_vertical_material"
android:right="@dimen/button_padding_horizontal_material"
android:bottom="@dimen/button_padding_vertical_material" />
</shape>
</inset>
</item>
<!-- normal state -->
<item>
<inset xmlns:android="http://schemas.android.com/apk/res/android"
android:insetLeft="@dimen/button_inset_horizontal_material"
android:insetTop="@dimen/button_inset_vertical_material"
android:insetRight="@dimen/button_inset_horizontal_material"
android:insetBottom="@dimen/button_inset_vertical_material">
<shape android:shape="rectangle">
<corners android:radius="@dimen/control_corner_material" />
<solid android:color="@color/rate_app_dialog_positive_button_background_color_material_light" />
<padding android:left="@dimen/button_padding_horizontal_material"
android:top="@dimen/button_padding_vertical_material"
android:right="@dimen/button_padding_horizontal_material"
android:bottom="@dimen/button_padding_vertical_material" />
</shape>
</inset>
</item>
</selector>
themes.xml
<item name="rateAppDialogPositiveButtonTextColor">@color/rate_app_dialog_positive_button_text_color_material_light</item>
<item name="rateAppDialogPositiveButtonSelector">@drawable/rate_app_dialog_positive_button_selector_material_light</item>
RateAppDialogFragment.java
TypedValue typedValue = new TypedValue();
Resources.Theme theme = this.getContext().getTheme();
theme.resolveAttribute(R.attr.rateAppDialogPositiveButtonTextColor, typedValue, true);
final int rateAppDialogPositiveButtonTextColor = typedValue.data;
theme.resolveAttribute(R.attr.rateAppDialogPositiveButtonSelector, typedValue, true);
final int rateAppDialogPositiveButtonSelectorResourceId = typedValue.resourceId;
dialog.setOnShowListener(new DialogInterface.OnShowListener()
@Override
public void onShow(DialogInterface d)
Button positiveButton = dialog.getButton(AlertDialog.BUTTON_POSITIVE);
positiveButton.setTextColor(rateAppDialogPositiveButtonTextColor);
positiveButton.setBackgroundResource(rateAppDialogPositiveButtonSelectorResourceId);
);
这适用于 Android 4 及更高版本。
【讨论】:
【参考方案3】: MaterialAlertDialogBuilder(it, R.style.MaterialDialog)
.setTitle(R.string.title_logout)
.setMessage(R.string.msg_logout)
.setNegativeButton("Cancel", null)
.setPositiveButton("Ok") _, _ ->
vm.logout()
val intent = Intent(context, AuthActivity::class.java)
startActivity(intent)
activity?.finish()
.create()
.show()
使用上面的代码创建对话框。
<style name="MaterialDialog" parent="Theme.MaterialComponents.Light.Dialog">
<item name="android:windowNoTitle">true</item>
<item name="android:buttonBarPositiveButtonStyle">@style/MaterialDialog.ButtonStyle</item>
<item name="android:buttonBarNegativeButtonStyle">@style/MaterialDialog.ButtonStyle</item>
<item name="android:textColorPrimary">@color/black</item>
<item name="colorPrimary">@color/colorAccent</item>
<item name="android:background">@color/white</item>
</style>
<style name="MaterialDialog.ButtonStyle">
<item name="android:background">@color/white</item>
</style>
并在您的样式中添加上述样式
【讨论】:
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