3 回答
TA贡献1844条经验 获得超8个赞
android-smspopup正是这样做的。
服务接收到一条短信,并以开头Activity:
android:theme="@android:style/Theme.Dialog"
编辑:对话框活动从此处使用此代码开始
private void notifyMessageReceived(SmsMmsMessage message) {
(...)
context.startActivity(message.getPopupIntent());
(...)
}
随着getPopupIntent()声明如下(代码在这里):
public Intent getPopupIntent() {
Intent popup = new Intent(context, SmsPopupActivity.class);
popup.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS);
popup.putExtras(toBundle());
return popup;
}
SmsPopupActivity该类显然定义了对话框活动。其声明如下AndroidManifest.xml:
<activity
android:name=".ui.SmsPopupActivity"
android:configChanges="keyboardHidden|orientation|screenSize"
android:launchMode="singleTask"
android:screenOrientation="user"
android:taskAffinity="net.everythingandroid.smspopup.popup"
android:theme="@style/DialogTheme" >
</activity>
TA贡献1853条经验 获得超9个赞
服务中的材质样式对话框
从服务中,您可以轻松显示“材质设计”样式的对话框,以操纵其窗口类型,属性和LayoutParams。
开始之前:AppCompat库
本指南假定您正在使用Android AppCompat libray。
开始之前:权限
此方法需要SYSTEM_ALERT_WINDOW权限。通常,要显示对话框的服务还具有一些在系统UI上绘制的视图(使用WindowManager.addView()方法添加),因此您可能已经在清单中声明了此权限用法。如果没有,请添加以下行:
<uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW" />
在Android 6.0 Marshmallow中,用户必须明确允许您的应用“覆盖其他应用”。您可以以编程方式启动包含该开关的系统设置活动:
@Override
protected void onResume() {
super.onResume();
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M && !Settings.canDrawOverlays(this)) {
openOverlaySettings();
}
}
@TargetApi(Build.VERSION_CODES.M)
private void openOverlaySettings() {
final Intent intent = new Intent(Settings.ACTION_MANAGE_OVERLAY_PERMISSION,
Uri.parse("package:" + getPackageName()));
try {
startActivityForResult(intent, RC_OVERLAY);
} catch (ActivityNotFoundException e) {
Log.e(TAG, e.getMessage());
}
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
switch (requestCode) {
case RC_OVERLAY:
final boolean overlayEnabled = Settings.canDrawOverlays(this);
// Do something...
break;
}
}
创建您的自定义“材料设计对话框”主题
在内部themes.xml创建此主题并使用您的应用颜色对其进行自定义:
<style name="AppTheme.MaterialDialogTheme" parent="Theme.AppCompat.Light.Dialog">
<item name="colorPrimary">@color/brand_primary</item>
<item name="colorPrimaryDark">@color/brand_primary_dark</item>
<item name="colorAccent">@color/brand_accent</item>
<item name="android:windowBackground">@drawable/dialog_background_light</item>
<item name="android:textColorPrimary">@color/primary_text_light</item>
<item name="android:textColorSecondary">@color/secondary_text_light</item>
<item name="android:textColorTertiary">@color/secondary_text_light</item>
</style>
启动对话框
服务内幕:
final AlertDialog.Builder dialogBuilder = new AlertDialog.Builder(this, R.style.AppTheme_MaterialDialogTheme);
dialogBuilder.setTitle(R.string.dialog_title);
dialogBuilder.setMessage(R.string.dialog_message);
dialogBuilder.setNegativeButton(R.string.btn_back,
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
dialog.dismiss();
}
}
);
final AlertDialog dialog = dialogBuilder.create();
final Window dialogWindow = dialog.getWindow();
final WindowManager.LayoutParams dialogWindowAttributes = dialogWindow.getAttributes();
// Set fixed width (280dp) and WRAP_CONTENT height
final WindowManager.LayoutParams lp = new WindowManager.LayoutParams();
lp.copyFrom(dialogWindowAttributes);
lp.width = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 280, getResources().getDisplayMetrics());
lp.height = WindowManager.LayoutParams.WRAP_CONTENT;
dialogWindow.setAttributes(lp);
// Set to TYPE_SYSTEM_ALERT so that the Service can display it
dialogWindow.setType(WindowManager.LayoutParams.TYPE_SYSTEM_ALERT);
dialogWindowAttributes.windowAnimations = R.style.DialogAnimation;
dialog.show();
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