Android AlertDialog setMultiChoiceItems具有自定义背景色 [英] Android AlertDialog setMultiChoiceItems with custom background color
问题描述
我收到了带有多个选择项选择的AlertDialog:
I got this alertDialog with a multiple choice item selection:
builder.setTitle(R.string.layer_options_title)
.setMultiChoiceItems(availableOptions, selectedLayerOptions, new DialogInterface.OnMultiChoiceClickListener() {
...
});
其中
availableOptions = getApplicationContext().getResources().getStringArray(R.array.layer_options);
来自
<string-array name="layer_options">
<item>Should have green background</item>
<item>Should have yellow background</item>
<item>Should have orange background</item>
<item>Should have blue background</item>
</string-array>
有什么方法可以使这些选择项具有背景颜色?
Is there any way to make these multiple choice items have a background color?
推荐答案
是的,有一种方法.将您的复选框放在布局中,并为布局提供背景色.这是我的方法:
Yes, there is a way. Put your checkbox in a layout and give the layout backgrond color. This is how I could do it:
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,如您在代码中看到的,我创建了一个主布局(垂直).然后,对于每个复选框,我创建了一个水平布局.在这种情况下,您可以使用元素的颜色和字体(复选框,项目等).
Firstly, I created a main layout (vertical) as you see in the code. Then, for each one of the checkboxes I created a horizontal layout. In this case you can play with the colors and fonts of the elements (checkboxes, items, and etc.).
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