[原创]教你如何最快写出酷炫的dialog对话框

在实际开发中，系统自带的dialog样式太丑，往往都是自定义一个布局，通过LayoutInflater.inflate(XXX)打一个布局渲染进去的。但是这样做也有缺点，比如下面这张图，你布局里面是不好处理的：

首先，看一下效果图：

那么遇到这种情况怎么做呢？下面我来分析一下：

一、右边的那个锁是一个状态选择器，我在drawable下面写一个状态选择器,我取名为radio_button_button_selector.xml：

<?xml version="1.0" encoding="utf-8"?><selector xmlns:android="http://schemas.android.com/apk/res/android"><item android:drawable="@drawable/ic_radio_button_select" android:state_activated="true"></item><item android:drawable="@drawable/ic_radio_button_select" android:state_pressed="true"></item><item android:drawable="@drawable/ic_radio_button_normal"></item> </selector> 复制代码

二、改写系统的布局，我取名为：select_dialog_singlechoice.xml 具体如下：

<?xml version="1.0" encoding="utf-8"?> <LinearLayoutxmlns:android="http://schemas.android.com/apk/res/android"android:layout_width="match_parent"android:layout_height="match_parent"android:orientation="vertical"><CheckedTextViewxmlns:android="http://schemas.android.com/apk/res/android"android:id="@+id/text1"android:layout_width="match_parent"android:layout_height="?android:attr/listPreferredItemHeightSmall"android:checkMark="@drawable/radio_button_button_selector"android:gravity="center_vertical"android:paddingEnd="?android:attr/listPreferredItemPaddingEnd"android:paddingStart="?android:attr/listPreferredItemPaddingStart"android:textAppearance="?android:attr/textAppearanceListItemSmall"/> </LinearLayout> 复制代码

三、然后在activity的布局：

<?xml version="1.0" encoding="utf-8"?> <LinearLayoutxmlns:android="http://schemas.android.com/apk/res/android"android:layout_width="match_parent"android:layout_height="match_parent"android:orientation="vertical"><Buttonandroid:id="@+id/button3"android:layout_width="wrap_content"android:layout_height="wrap_content"android:text="点击就有弹窗"/></LinearLayout> 复制代码

四、最后就是mainactivity里面的代码：

/*** 弹窗的背景色的设置*/ public class MainActivity3 extends AppCompatActivity implements View.OnClickListener{private CharSequence[] items = new CharSequence[]{"苹果", "西瓜", "香蕉", "葡萄","你想要啥水果自己选。。"};private Button mButton;ArrayAdapter<SpannableStringBuilder> adapter;@Overrideprotected void onCreate(@Nullable Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main3);mButton = (Button) findViewById(R.id.button3);mButton.setOnClickListener(this);ArrayList<SpannableStringBuilder> chooseTypeList = new ArrayList<>();SpannableStringBuilder builder1 = new SpannableStringBuilder();SpannableString ss1 = new SpannableString("湖北省 - 省会 - 武汉市");//设置字体(default,default-bold,monospace,serif,sans-serif)ss1.setSpan(new TypefaceSpan("monospace"), 0,3, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);//设置字体大小（绝对值,单位：像素）//第二个参数 如果为true，表示前面的字体大小单位为dip，否则为像素ss1.setSpan(new AbsoluteSizeSpan(60), 0,3, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);ss1.setSpan(new ForegroundColorSpan(Color.BLACK), 0,1, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);ss1.setSpan(new ForegroundColorSpan(Color.rgb(255,0,0)),1,2, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);ss1.setSpan(new ForegroundColorSpan(Color.rgb(255,165,0)), 2,3, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);ss1.setSpan(new ForegroundColorSpan(Color.rgb(255,255,0)), 6,7, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);ss1.setSpan(new ForegroundColorSpan(Color.rgb(0,255,0)), 7,8, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);ss1.setSpan(new ForegroundColorSpan(Color.rgb(0,127,255)), 11,12, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);ss1.setSpan(new ForegroundColorSpan(Color.rgb(0,0,255)), 12,13, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);ss1.setSpan(new ForegroundColorSpan(Color.rgb(139,0,255)), 13,ss1.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);builder1.append(ss1);SpannableStringBuilder builder2 = new SpannableStringBuilder();SpannableString ss2 = new SpannableString("浙江省 - 省会 - 杭州市");//设置字体(default,default-bold,monospace,serif,sans-serif)ss2.setSpan(new TypefaceSpan("monospace"), 0,3, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);ss2.setSpan(new ForegroundColorSpan(Color.BLACK), 0,1, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);ss2.setSpan(new ForegroundColorSpan(Color.rgb(255,0,0)),1,2, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);ss2.setSpan(new ForegroundColorSpan(Color.rgb(255,165,0)), 2,3, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);ss2.setSpan(new ForegroundColorSpan(Color.rgb(255,255,0)), 6,7, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);ss2.setSpan(new ForegroundColorSpan(Color.rgb(0,255,0)), 7,8, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);ss2.setSpan(new ForegroundColorSpan(Color.rgb(0,127,255)), 11,12, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);ss2.setSpan(new ForegroundColorSpan(Color.rgb(0,0,255)), 12,13, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);ss2.setSpan(new ForegroundColorSpan(Color.rgb(139,0,255)), 13,ss2.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);builder2.append(ss2);SpannableStringBuilder builder3 = new SpannableStringBuilder();SpannableString ss3 = new SpannableString("江苏省 - 省会 - 南京市");//设置字体(default,default-bold,monospace,serif,sans-serif)ss3.setSpan(new TypefaceSpan("monospace"), 0,3, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);ss3.setSpan(new ForegroundColorSpan(Color.BLACK), 0,1, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);ss3.setSpan(new ForegroundColorSpan(Color.rgb(255,0,0)),1,2, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);ss3.setSpan(new ForegroundColorSpan(Color.rgb(255,165,0)), 2,3, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);ss3.setSpan(new ForegroundColorSpan(Color.rgb(255,255,0)), 6,7, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);ss3.setSpan(new ForegroundColorSpan(Color.rgb(0,255,0)), 7,8, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);ss3.setSpan(new ForegroundColorSpan(Color.rgb(0,127,255)), 11,12, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);ss3.setSpan(new ForegroundColorSpan(Color.rgb(0,0,255)), 12,13, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);ss3.setSpan(new ForegroundColorSpan(Color.rgb(139,0,255)), 13,ss3.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);builder3.append(ss3);SpannableStringBuilder builder4 = new SpannableStringBuilder();SpannableString ss4 = new SpannableString("广东省 - 省会 - 广州市");//设置字体(default,default-bold,monospace,serif,sans-serif)ss4.setSpan(new TypefaceSpan("monospace"), 0,3, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);ss4.setSpan(new ForegroundColorSpan(Color.BLACK), 0,1, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);ss4.setSpan(new ForegroundColorSpan(Color.rgb(255,0,0)),1,2, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);ss4.setSpan(new ForegroundColorSpan(Color.rgb(255,165,0)), 2,3, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);ss4.setSpan(new ForegroundColorSpan(Color.rgb(255,255,0)), 6,7, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);ss4.setSpan(new ForegroundColorSpan(Color.rgb(0,255,0)), 7,8, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);ss4.setSpan(new ForegroundColorSpan(Color.rgb(0,127,255)), 11,12, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);ss4.setSpan(new ForegroundColorSpan(Color.rgb(0,0,255)), 12,13, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);ss4.setSpan(new ForegroundColorSpan(Color.rgb(139,0,255)), 13,ss4.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);builder4.append(ss4);chooseTypeList.add(builder1);chooseTypeList.add(builder2);chooseTypeList.add(builder3);chooseTypeList.add(builder4);adapter = new ArrayAdapter<>(this, R.layout.select_dialog_singlechoice, R.id.text1, chooseTypeList);}@Overridepublic void onClick(View v) {AlertDialog.Builder builder = new AlertDialog.Builder(this);builder.setSingleChoiceItems(adapter, 0, new DialogInterface.OnClickListener() {@Overridepublic void onClick(DialogInterface dialog, int which) {Toast.makeText(MainActivity3.this, items[which], Toast.LENGTH_SHORT).show();}}).setPositiveButton("确定", new DialogInterface.OnClickListener() {@Overridepublic void onClick(DialogInterface dialog, int which) {dialog.dismiss();}}).setNegativeButton("取消", new DialogInterface.OnClickListener() {@Overridepublic void onClick(DialogInterface dialog, int which) {dialog.dismiss();}}).show();} } 复制代码

最终效果如下，是不是很酷炫？

《新程序员》：云原生和全面数字化实践50位技术专家共同创作，文字、视频、音频交互阅读

总结

以上是生活随笔为你收集整理的[原创]教你如何最快写出酷炫的dialog对话框的全部内容，希望文章能够帮你解决所遇到的问题。

如果觉得生活随笔网站内容还不错，欢迎将生活随笔推荐给好友。