如何更改 AlertDialog 中的文本颜色？
<item name="android:textColor">@color/black_text</item>
这仅更改标题颜色。
ad = new AlertDialog.Builder((new ContextThemeWrapper(context, R.style.DialogTheme)));
ad.setTitle(R.string.my_activ_remove_title_dialog);
ad.setPositiveButton(R.string.my_activ_remove_dialog, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int arg1) {
content.remove(position);
notifyItemRemoved(position);
notifyItemRangeChanged(position, content.size());
}
});
ad.setNegativeButton(R.string.my_activ_cancel_remove_dialog, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int arg1) {
}
});
警报对话框 v2
如果仅更改字体颜色，请尝试以下操作：
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle(Html.fromHtml("<font color='#FF7F27'>This is a test</font>"));
builder.setPositiveButton(Html.fromHtml("<font color='#FF7F27'>Yes</font>"), new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int arg1) {
Log.e(LOG_TAG, "Yes");
}
});
builder.setNegativeButton(Html.fromHtml("<font color='#FF7F27'>No</font>"), new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int arg1) {
Log.e(LOG_TAG, "No");
}
});
builder.create();
builder.show();
result:
要更改字体颜色和按钮背景颜色，请尝试以下操作：
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setMessage(Html.fromHtml("<font color='#FF7F27'>This is a test</font>"));
builder.setCancelable(false);
builder.setNegativeButton("No", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
}
});
builder.setPositiveButton("Yes", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
}
});
AlertDialog alert = builder.create();
alert.show();
Button nbutton = alert.getButton(DialogInterface.BUTTON_NEGATIVE);
//Set negative button background
nbutton.setBackgroundColor(Color.MAGENTA);
//Set negative button text color
nbutton.setTextColor(Color.YELLOW);
Button pbutton = alert.getButton(DialogInterface.BUTTON_POSITIVE);
//Set positive button background
pbutton.setBackgroundColor(Color.YELLOW);
//Set positive button text color
pbutton.setTextColor(Color.MAGENTA);
Result:
如果您想更改分隔线颜色，请尝试以下操作：
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle("Test Title");
builder.setMessage(Html.fromHtml("<font color='#FF7F27'>This is a test</font>"));
builder.setCancelable(false);
builder.setNegativeButton("No", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
}
});
builder.setPositiveButton("Yes", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
}
});
AlertDialog dialog = builder.create();
dialog.show();
try {
Resources resources = dialog.getContext().getResources();
int alertTitleId = resources.getIdentifier("alertTitle", "id", "android");
TextView alertTitle = (TextView) dialog.getWindow().getDecorView().findViewById(alertTitleId);
alertTitle.setTextColor(Color.MAGENTA); // change title text color
int titleDividerId = resources.getIdentifier("titleDivider", "id", "android");
View titleDivider = dialog.getWindow().getDecorView().findViewById(titleDividerId);
titleDivider.setBackgroundColor(Color.YELLOW); // change divider color
} catch (Exception ex) {
ex.printStackTrace();
}
Button nbutton = dialog.getButton(DialogInterface.BUTTON_NEGATIVE);
//Set negative button background
nbutton.setBackgroundColor(Color.MAGENTA);
//Set negative button text color
nbutton.setTextColor(Color.YELLOW);
Button pbutton = dialog.getButton(DialogInterface.BUTTON_POSITIVE);
//Set positive button background
pbutton.setBackgroundColor(Color.YELLOW);
//Set positive button text color
pbutton.setTextColor(Color.MAGENTA);
这是我的示例代码，但如果您想更改分隔线颜色，请考虑以“int titleDividerId”开头的代码部分。
Result:
如果你想大量定制AlertDialog。例如，添加一些具有自定义背景颜色的复选框，请使用以下方法：
AlertDialog.Builder alert = new AlertDialog.Builder(this);
LinearLayout mainLayout = new LinearLayout(this);
mainLayout.setOrientation(LinearLayout.VERTICAL);
LinearLayout layout1 = new LinearLayout(this);
layout1.setOrientation(LinearLayout.HORIZONTAL);
CheckBox cb1 = new CheckBox(getApplicationContext());
cb1.setText("Easy");
layout1.addView(cb1);
layout1.setBackgroundColor(Color.BLUE);
layout1.setMinimumHeight(50);
LinearLayout layout2 = new LinearLayout(this);
layout2.setOrientation(LinearLayout.HORIZONTAL);
layout2.addView(new TextView(this));
CheckBox cb2 = new CheckBox(getApplicationContext());
cb2.setText("Normal");
layout2.addView(cb2);
layout2.setBackgroundColor(Color.CYAN);
layout2.setMinimumHeight(50);
LinearLayout layout3 = new LinearLayout(this);
layout3.setOrientation(LinearLayout.HORIZONTAL);
CheckBox cb3 = new CheckBox(getApplicationContext());
cb3.setText("Hard");
layout3.addView(cb3);
layout3.setBackgroundColor(Color.GREEN);
layout3.setMinimumHeight(50);
mainLayout.addView(layout1);
mainLayout.addView(layout2);
mainLayout.addView(layout3);
alert.setTitle("Custom alert demo");
alert.setView(mainLayout);
alert.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
dialog.cancel();
}
});
alert.setPositiveButton("Done", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
Toast.makeText(getBaseContext(), "done", Toast.LENGTH_SHORT).show();
}
});
alert.show();
结果：
首先，我创建了一个主布局（垂直），如您在代码中看到的。然后，我为每个复选框创建了一个水平布局。在这种情况下，您可以使用元素（复选框、项目等）的颜色和字体。我希望它有帮助。