Android 在 Alert Dialog 标题栏中添加切换按钮
Add switch button in Alert Dialog title bar in Android
如何在警告对话框的标题栏中添加一个切换按钮？作为示例，请参见 Wi-Fi 选项屏幕截图。如您所见，Wi-Fi 选项中的标题内有一个切换按钮。是否可以创建自定义警报对话框以在警报对话框的标题栏内添加开关切换按钮？下面给出的代码适用于第 2 个屏幕截图，我在其中标记了要添加的位置。请帮助我，指引我正确的方向。
alertDialogBuilder = new AlertDialog.Builder(context);
alertDialogBuilder.setTitle("Recording Timer");
LinearLayout LL = new LinearLayout(context);
LL.setFocusable(true);
LL.setFocusableInTouchMode(true);
LL.setOrientation(LinearLayout.HORIZONTAL);
final TextView secondsTextView = new TextView(context);
final TextView minutesTextView = new TextView(context);
final TextView hoursTextView = new TextView(context);
secondsTextView.setText("seconds");
minutesTextView.setText("minutes");
hoursTextView.setText("hours");
LinearLayout.LayoutParams lp = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT);
lp.gravity = Gravity.CENTER_HORIZONTAL | Gravity.CENTER_VERTICAL;
lp.setMargins(0, 15, 0, 0);
LL.setLayoutParams(lp);
LinearLayout.LayoutParams lp11 = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT);
lp11.setMargins(79, 0, 0, 0);
LL.addView(hoursTextView, lp11);
LinearLayout.LayoutParams lp22 = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT);
lp22.setMargins(107, 0, 0, 0);
LL.addView(minutesTextView, lp22);
LinearLayout.LayoutParams lp33 = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT);
lp33.setMargins(98, 0, 0, 0);
LL.addView(secondsTextView, lp33);
LinearLayout LL1 = new LinearLayout(context);
LL1.setOrientation(LinearLayout.HORIZONTAL);
secondsPicker = new NumberPicker(context);
minutesPicker = new NumberPicker(context);
hoursPicker = new NumberPicker(context);
secondsPicker.setOnValueChangedListener(new NumberPicker.OnValueChangeListener() {
@Override
public void onValueChange(NumberPicker picker, int oldVal, int newVal) {
if(newVal==0 && minutesPicker.getValue()==0 && hoursPicker.getValue()==0) {
alertDialog1.getButton(AlertDialog.BUTTON_POSITIVE).setEnabled(false);
} else {
alertDialog1.getButton(AlertDialog.BUTTON_POSITIVE).setEnabled(true);
}
}
});
minutesPicker.setOnValueChangedListener(new NumberPicker.OnValueChangeListener() {
@Override
public void onValueChange(NumberPicker picker, int oldVal, int newVal) {
if(newVal==0 && secondsPicker.getValue()==0 && hoursPicker.getValue()==0) {
alertDialog1.getButton(AlertDialog.BUTTON_POSITIVE).setEnabled(false);
} else {
alertDialog1.getButton(AlertDialog.BUTTON_POSITIVE).setEnabled(true);
}
}
});
hoursPicker.setOnValueChangedListener(new NumberPicker.OnValueChangeListener() {
@Override
public void onValueChange(NumberPicker picker, int oldVal, int newVal) {
if(newVal==0 && minutesPicker.getValue()==0 && secondsPicker.getValue()==0) {
alertDialog1.getButton(AlertDialog.BUTTON_POSITIVE).setEnabled(false);
} else {
alertDialog1.getButton(AlertDialog.BUTTON_POSITIVE).setEnabled(true);
}
}
});
secondsPicker.setMaxValue(59);
secondsPicker.setMinValue(0);
minutesPicker.setMaxValue(59);
minutesPicker.setMinValue(0);
hoursPicker.setMaxValue(23);
hoursPicker.setMinValue(0);
if (timedRecordingIsOn || timedRecordingDialogOpened) {
secondsPicker.setValue(secondsNumberPickerInt);
minutesPicker.setValue(minutesNumberPickerInt);
hoursPicker.setValue(hoursNumberPickerInt);
}
timedRecordingDialogOpened = true;
LinearLayout.LayoutParams lp110 = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT);
lp110.gravity = Gravity.CENTER_HORIZONTAL | Gravity.CENTER_VERTICAL;
lp110.setMargins(0, 40, 0, 0);
LL1.setLayoutParams(lp110);
LinearLayout.LayoutParams lp1 = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT);
lp1.setMargins(52, 0, 0, 0);
LL1.addView(hoursPicker, lp1);
LinearLayout.LayoutParams lp2 = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT);
lp2.setMargins(62, 0, 0, 0);
LL1.addView(minutesPicker, lp2);
LinearLayout.LayoutParams lp3 = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT);
lp3.setMargins(72, 0, 0, 0);
LL1.addView(secondsPicker, lp3);
RelativeLayout relativeLayout1 = new RelativeLayout(context);
relativeLayout1.addView(LL);
relativeLayout1.addView(LL1);
alertDialogBuilder.setView(relativeLayout1);
DialogInterface.OnClickListener dialogClickListener = new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
switch (which) {
case DialogInterface.BUTTON_POSITIVE:
secondsNumberPickerInt = secondsPicker.getValue();
minutesNumberPickerInt = minutesPicker.getValue();
hoursNumberPickerInt = hoursPicker.getValue();
timeRecordingInMilliSeconds = (hoursPicker.getValue() * 3600000) + (minutesPicker.getValue() * 60000) + (secondsPicker.getValue() * 1000);
timedRecordingIsOn = true;
timedRecordingDialogOpened = false;
timedRecordingTextView.setText("Timer set for: " + (hoursPicker.getValue() == 0 ? "00" : hoursPicker.getValue()) + ":" + (minutesPicker.getValue() == 0 ? "00" : minutesPicker.getValue()) + ":" + (secondsPicker.getValue() == 0 ? "00" : secondsPicker.getValue()));
timedRecordingTextView.setVisibility(View.VISIBLE);
// button.performClick();
break;
case DialogInterface.BUTTON_NEGATIVE:
if (timedRecordingIsOn) {
timedRecordingIsOn = false;
timedRecordingTextView.setVisibility(View.INVISIBLE);
}
timeRecordingInMilliSeconds = 0;
secondsNumberPickerInt = 0;
minutesNumberPickerInt = 0;
hoursNumberPickerInt = 0;
timedRecordingDialogOpened = false;
break;
}
}
};
alertDialogBuilder.setPositiveButton("SET TIMER", dialogClickListener);
if (timedRecordingIsOn) {
alertDialogBuilder.setNegativeButton("CANCEL TIMER", dialogClickListener);
} else {
alertDialogBuilder.setNegativeButton("CANCEL", dialogClickListener);
}
alertDialog1 = alertDialogBuilder.create();
alertDialog1.setOnCancelListener(
new DialogInterface.OnCancelListener() {
@Override
public void onCancel(DialogInterface dialog) { //When you touch outside of dialog bounds, the dialog gets canceled and this method executes.
timeRecordingInMilliSeconds = 0;
secondsNumberPickerInt = 0;
minutesNumberPickerInt = 0;
hoursNumberPickerInt = 0;
timedRecordingDialogOpened = false;
}
}
);
alertDialog1.show();
LL.requestFocus();
secondsPicker.clearFocus();
if(!timedRecordingIsOn && savedInstanceState!=null) {
alertDialog1.getButton(AlertDialog.BUTTON_POSITIVE).setEnabled(false);
}
if(savedInstanceState!=null) {
if(secondsNumberPickerInt==0 && minutesNumberPickerInt ==0 && hoursNumberPickerInt == 0) {
alertDialog1.getButton(AlertDialog.BUTTON_POSITIVE).setEnabled(false);
}
Add switch button in Alert Dialog title bar in Android
您可以使用包含标题和 body 的自定义布局，然后隐藏默认实现。
AlertDialog.Builder dialogBuilder = new AlertDialog.Builder(this);
LayoutInflater inflater = this.getLayoutInflater();
View dialogView = inflater.inflate(R.layout.custom_dialog, null);
dialogBuilder.setView(dialogView);
您可以使用以下方法隐藏对话框的标题：
dialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
我的建议是为自定义对话框创建布局文件，这样做会有帮助。
final Dialog dialog = new Dialog(getContext());
dialog.setCancelable(false);
dialog.setContentView(R.layout.your_dialog_layout);
dialog.setTitle("Dialog Title");
//views inside your layout declare and cast here
//e.g. final Button btn = (Button)dialog.findViewById(R.id.btn);
//after all view casting and onClickListeners show your dialog
dialog.show();
尝试实现一个布局文件并在警报对话框打开时膨胀并在此布局中提供切换按钮
final Dialog dialog = new Dialog(getContext());
dialog.setCancelable(false);
dialog.setContentView(R.layout.your_dialog_layout);
dialog.setTitle("Dialog Title");
//views inside your layout declare and cast here
//e.g. final Button btn = (Button)dialog.findViewById(R.id.btn);
//after all view casting and onClickListeners show your dialog
dialog.show();
注意：按照任何一种方法进行操作 & MainActivity.this 替换为您的上下文
如果您需要java代码，请遵循此
final AlertDialog.Builder dialog = new AlertDialog.Builder(MainActivity.this);
dialog.setCancelable(false);
final TextView titleTextView = new TextView(MainActivity.this);
titleTextView.setText("Title");
titleTextView.setTextColor(Color.RED);
Switch switchval=new Switch(MainActivity.this);
RelativeLayout.LayoutParams params = (RelativeLayout.LayoutParams)button.getLayoutParams();
params.addRule(RelativeLayout.ALIGN_PARENT_RIGHT);
switchval.setLayoutParams(params);
RelativeLayout relative=new RelativeLayout(MainActivity.this);
relative.addView(titleTextView);
relative.addView(switchval);
dialog.setCustomTitle(relative);
/*Your Numberpickerview example is following*/
//dialog.setView(yourcustomview);
dialog.create().show();
-------------------------------------------- ----------------------------------
键入 XML：如果您想要 xml 代码，请遵循此
final AlertDialog.Builder dialog1 = new AlertDialog.Builder(MainActivity.this);
dialog1.setCancelable(false);
dialog1.setCustomTitle(getLayoutInflater().inflate(R.layout.btn_share,null));
//dialog1.setView(/*Your number picker view*/);
dialog1.create().show();
btn_share.xml
<?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="wrap_content">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Title"
android:paddingLeft="10dp"
android:layout_gravity="center"
android:textColor="@color/colorAccent"/>
<Switch
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentEnd="true"
android:layout_alignParentRight="true"
android:layout_marginRight="15dp"/>
</RelativeLayout>
如何在警告对话框的标题栏中添加一个切换按钮？作为示例，请参见 Wi-Fi 选项屏幕截图。如您所见，Wi-Fi 选项中的标题内有一个切换按钮。是否可以创建自定义警报对话框以在警报对话框的标题栏内添加开关切换按钮？下面给出的代码适用于第 2 个屏幕截图，我在其中标记了要添加的位置。请帮助我，指引我正确的方向。
alertDialogBuilder = new AlertDialog.Builder(context);
alertDialogBuilder.setTitle("Recording Timer");
LinearLayout LL = new LinearLayout(context);
LL.setFocusable(true);
LL.setFocusableInTouchMode(true);
LL.setOrientation(LinearLayout.HORIZONTAL);
final TextView secondsTextView = new TextView(context);
final TextView minutesTextView = new TextView(context);
final TextView hoursTextView = new TextView(context);
secondsTextView.setText("seconds");
minutesTextView.setText("minutes");
hoursTextView.setText("hours");
LinearLayout.LayoutParams lp = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT);
lp.gravity = Gravity.CENTER_HORIZONTAL | Gravity.CENTER_VERTICAL;
lp.setMargins(0, 15, 0, 0);
LL.setLayoutParams(lp);
LinearLayout.LayoutParams lp11 = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT);
lp11.setMargins(79, 0, 0, 0);
LL.addView(hoursTextView, lp11);
LinearLayout.LayoutParams lp22 = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT);
lp22.setMargins(107, 0, 0, 0);
LL.addView(minutesTextView, lp22);
LinearLayout.LayoutParams lp33 = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT);
lp33.setMargins(98, 0, 0, 0);
LL.addView(secondsTextView, lp33);
LinearLayout LL1 = new LinearLayout(context);
LL1.setOrientation(LinearLayout.HORIZONTAL);
secondsPicker = new NumberPicker(context);
minutesPicker = new NumberPicker(context);
hoursPicker = new NumberPicker(context);
secondsPicker.setOnValueChangedListener(new NumberPicker.OnValueChangeListener() {
@Override
public void onValueChange(NumberPicker picker, int oldVal, int newVal) {
if(newVal==0 && minutesPicker.getValue()==0 && hoursPicker.getValue()==0) {
alertDialog1.getButton(AlertDialog.BUTTON_POSITIVE).setEnabled(false);
} else {
alertDialog1.getButton(AlertDialog.BUTTON_POSITIVE).setEnabled(true);
}
}
});
minutesPicker.setOnValueChangedListener(new NumberPicker.OnValueChangeListener() {
@Override
public void onValueChange(NumberPicker picker, int oldVal, int newVal) {
if(newVal==0 && secondsPicker.getValue()==0 && hoursPicker.getValue()==0) {
alertDialog1.getButton(AlertDialog.BUTTON_POSITIVE).setEnabled(false);
} else {
alertDialog1.getButton(AlertDialog.BUTTON_POSITIVE).setEnabled(true);
}
}
});
hoursPicker.setOnValueChangedListener(new NumberPicker.OnValueChangeListener() {
@Override
public void onValueChange(NumberPicker picker, int oldVal, int newVal) {
if(newVal==0 && minutesPicker.getValue()==0 && secondsPicker.getValue()==0) {
alertDialog1.getButton(AlertDialog.BUTTON_POSITIVE).setEnabled(false);
} else {
alertDialog1.getButton(AlertDialog.BUTTON_POSITIVE).setEnabled(true);
}
}
});
secondsPicker.setMaxValue(59);
secondsPicker.setMinValue(0);
minutesPicker.setMaxValue(59);
minutesPicker.setMinValue(0);
hoursPicker.setMaxValue(23);
hoursPicker.setMinValue(0);
if (timedRecordingIsOn || timedRecordingDialogOpened) {
secondsPicker.setValue(secondsNumberPickerInt);
minutesPicker.setValue(minutesNumberPickerInt);
hoursPicker.setValue(hoursNumberPickerInt);
}
timedRecordingDialogOpened = true;
LinearLayout.LayoutParams lp110 = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT);
lp110.gravity = Gravity.CENTER_HORIZONTAL | Gravity.CENTER_VERTICAL;
lp110.setMargins(0, 40, 0, 0);
LL1.setLayoutParams(lp110);
LinearLayout.LayoutParams lp1 = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT);
lp1.setMargins(52, 0, 0, 0);
LL1.addView(hoursPicker, lp1);
LinearLayout.LayoutParams lp2 = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT);
lp2.setMargins(62, 0, 0, 0);
LL1.addView(minutesPicker, lp2);
LinearLayout.LayoutParams lp3 = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT);
lp3.setMargins(72, 0, 0, 0);
LL1.addView(secondsPicker, lp3);
RelativeLayout relativeLayout1 = new RelativeLayout(context);
relativeLayout1.addView(LL);
relativeLayout1.addView(LL1);
alertDialogBuilder.setView(relativeLayout1);
DialogInterface.OnClickListener dialogClickListener = new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
switch (which) {
case DialogInterface.BUTTON_POSITIVE:
secondsNumberPickerInt = secondsPicker.getValue();
minutesNumberPickerInt = minutesPicker.getValue();
hoursNumberPickerInt = hoursPicker.getValue();
timeRecordingInMilliSeconds = (hoursPicker.getValue() * 3600000) + (minutesPicker.getValue() * 60000) + (secondsPicker.getValue() * 1000);
timedRecordingIsOn = true;
timedRecordingDialogOpened = false;
timedRecordingTextView.setText("Timer set for: " + (hoursPicker.getValue() == 0 ? "00" : hoursPicker.getValue()) + ":" + (minutesPicker.getValue() == 0 ? "00" : minutesPicker.getValue()) + ":" + (secondsPicker.getValue() == 0 ? "00" : secondsPicker.getValue()));
timedRecordingTextView.setVisibility(View.VISIBLE);
// button.performClick();
break;
case DialogInterface.BUTTON_NEGATIVE:
if (timedRecordingIsOn) {
timedRecordingIsOn = false;
timedRecordingTextView.setVisibility(View.INVISIBLE);
}
timeRecordingInMilliSeconds = 0;
secondsNumberPickerInt = 0;
minutesNumberPickerInt = 0;
hoursNumberPickerInt = 0;
timedRecordingDialogOpened = false;
break;
}
}
};
alertDialogBuilder.setPositiveButton("SET TIMER", dialogClickListener);
if (timedRecordingIsOn) {
alertDialogBuilder.setNegativeButton("CANCEL TIMER", dialogClickListener);
} else {
alertDialogBuilder.setNegativeButton("CANCEL", dialogClickListener);
}
alertDialog1 = alertDialogBuilder.create();
alertDialog1.setOnCancelListener(
new DialogInterface.OnCancelListener() {
@Override
public void onCancel(DialogInterface dialog) { //When you touch outside of dialog bounds, the dialog gets canceled and this method executes.
timeRecordingInMilliSeconds = 0;
secondsNumberPickerInt = 0;
minutesNumberPickerInt = 0;
hoursNumberPickerInt = 0;
timedRecordingDialogOpened = false;
}
}
);
alertDialog1.show();
LL.requestFocus();
secondsPicker.clearFocus();
if(!timedRecordingIsOn && savedInstanceState!=null) {
alertDialog1.getButton(AlertDialog.BUTTON_POSITIVE).setEnabled(false);
}
if(savedInstanceState!=null) {
if(secondsNumberPickerInt==0 && minutesNumberPickerInt ==0 && hoursNumberPickerInt == 0) {
alertDialog1.getButton(AlertDialog.BUTTON_POSITIVE).setEnabled(false);
}
Add switch button in Alert Dialog title bar in Android
您可以使用包含标题和 body 的自定义布局，然后隐藏默认实现。
AlertDialog.Builder dialogBuilder = new AlertDialog.Builder(this);
LayoutInflater inflater = this.getLayoutInflater();
View dialogView = inflater.inflate(R.layout.custom_dialog, null);
dialogBuilder.setView(dialogView);
您可以使用以下方法隐藏对话框的标题：
dialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
我的建议是为自定义对话框创建布局文件，这样做会有帮助。
final Dialog dialog = new Dialog(getContext());
dialog.setCancelable(false);
dialog.setContentView(R.layout.your_dialog_layout);
dialog.setTitle("Dialog Title");
//views inside your layout declare and cast here
//e.g. final Button btn = (Button)dialog.findViewById(R.id.btn);
//after all view casting and onClickListeners show your dialog
dialog.show();
尝试实现一个布局文件并在警报对话框打开时膨胀并在此布局中提供切换按钮
final Dialog dialog = new Dialog(getContext());
dialog.setCancelable(false);
dialog.setContentView(R.layout.your_dialog_layout);
dialog.setTitle("Dialog Title");
//views inside your layout declare and cast here
//e.g. final Button btn = (Button)dialog.findViewById(R.id.btn);
//after all view casting and onClickListeners show your dialog
dialog.show();
注意：按照任何一种方法进行操作 & MainActivity.this 替换为您的上下文
如果您需要java代码，请遵循此
final AlertDialog.Builder dialog = new AlertDialog.Builder(MainActivity.this);
dialog.setCancelable(false);
final TextView titleTextView = new TextView(MainActivity.this);
titleTextView.setText("Title");
titleTextView.setTextColor(Color.RED);
Switch switchval=new Switch(MainActivity.this);
RelativeLayout.LayoutParams params = (RelativeLayout.LayoutParams)button.getLayoutParams();
params.addRule(RelativeLayout.ALIGN_PARENT_RIGHT);
switchval.setLayoutParams(params);
RelativeLayout relative=new RelativeLayout(MainActivity.this);
relative.addView(titleTextView);
relative.addView(switchval);
dialog.setCustomTitle(relative);
/*Your Numberpickerview example is following*/
//dialog.setView(yourcustomview);
dialog.create().show();
-------------------------------------------- ----------------------------------
键入 XML：如果您想要 xml 代码，请遵循此
final AlertDialog.Builder dialog1 = new AlertDialog.Builder(MainActivity.this);
dialog1.setCancelable(false);
dialog1.setCustomTitle(getLayoutInflater().inflate(R.layout.btn_share,null));
//dialog1.setView(/*Your number picker view*/);
dialog1.create().show();
btn_share.xml
<?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="wrap_content">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Title"
android:paddingLeft="10dp"
android:layout_gravity="center"
android:textColor="@color/colorAccent"/>
<Switch
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentEnd="true"
android:layout_alignParentRight="true"
android:layout_marginRight="15dp"/>
</RelativeLayout>