底部导航栏切换selector选择器的使用和对话框

最新推荐文章于 2021-11-01 18:11:56 发布

mars_liurui

最新推荐文章于 2021-11-01 18:11:56 发布

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分类专栏： day01 文章标签：游戏开发

本文链接：https://blog.youkuaiyun.com/mars_liurui/article/details/90945207

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本文详细介绍了游戏开发中各种类型的对话框，包括普通对话框、自定义对话框、日期和时间对话框，以及进度条对话框。同时，还讲解了底部导航栏如何利用selector选择器进行有效切换。

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对话框

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普通对话框

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代码实现
 AlertDialog.Builder b = new AlertDialog.Builder(MainActivity.this);
                b.setTitle("警告");
                b.setMessage("你好牛啊！");
                b.setPositiveButton("ok", new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        Toast.makeText(MainActivity.this,"你选择了ok",Toast.LENGTH_SHORT).show();
                    }
                });
                b.setNegativeButton("cancel", new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        Toast.makeText(MainActivity.this,"你选择了cancel",Toast.LENGTH_SHORT).show();
                    }
                });
                AlertDialog alertDialog = b.create();
                alertDialog.show();

自定义对话框

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代码实现
View view = View.inflate(MainActivity.this, R.layout.view_layout, null);
                AlertDialog.Builder b = new AlertDialog.Builder(MainActivity.this);
                b.setIcon(R.drawable.b);
                b.setTitle("008号技师");
                b.setPositiveButton("ok", new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        Toast.makeText(MainActivity.this,"你选择了ok",Toast.LENGTH_SHORT).show();
                    }
                });
                b.setNegativeButton("cancel", new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        Toast.makeText(MainActivity.this,"你选择了cancel",Toast.LENGTH_SHORT).show();
                    }
                });
                b.setView(view);
                AlertDialog alertDialog = b.create();
                alertDialog.show();

日期对话框

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  Calendar calendar =Calendar.getInstance();
                new DatePickerDialog(MainActivity.this, new DatePickerDialog.OnDateSetListener() {
                    @Override
                    public void onDateSet(DatePicker view, int year, int month, int dayOfMonth) {
                        Toast.makeText(MainActivity.this, year+"-"+(month+1)+"-"+dayOfMonth, Toast.LENGTH_SHORT).show();
                    }
                },calendar.get(Calendar.YEAR),calendar.get(Calendar.MONTH),calendar.get(Calendar.DAY_OF_MONTH)).show();

时间对话框

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Calendar calendar = Calendar.getInstance();
                new TimePickerDialog(MainActivity.this, new TimePickerDialog.OnTimeSetListener() {
                    @Override
                    public void onTimeSet(TimePicker view, int hourOfDay, int minute) {
                        Toast.makeText(MainActivity.this, hourOfDay+":"+minute, Toast.LENGTH_SHORT).show();
                    }
                },calendar.get(Calendar.HOUR),calendar.get(Calendar.MINUTE),true).show();

水平进度条对话框

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 final ProgressDialog dialog = new ProgressDialog(MainActivity.this);
                dialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
                dialog.setMax(100);
                dialog.setTitle("正在下载");
                dialog.show();
                final Timer timer = new Timer();
                timer.schedule(new TimerTask() {
                    int progress =0;
                    @Override
                    public void run() {
                        if (progress==100){
                            dialog.dismiss();
                            timer.cancel();
                        }
                        dialog.setProgress(progress+=20);
                    }
                },0,1000);

圆形进度条对话框

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final ProgressDialog dialog = new ProgressDialog(MainActivity.this);
                dialog.setProgressStyle(ProgressDialog.STYLE_SPINNER);
                dialog.setMax(100);
                dialog.setTitle("正在下载");
                dialog.show();
                final Timer timer = new Timer();
                timer.schedule(new TimerTask() {
                    int progress =0;
                    @Override
                    public void run() {
                        if (progress==100){
                            dialog.dismiss();
                            timer.cancel();
                        }
                        dialog.setProgress(progress+=20);
                    }
                },0,1000);

单选对话框

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 AlertDialog.Builder b = new AlertDialog.Builder(MainActivity.this);
                b.setIcon(R.drawable.b);
                b.setTitle("你最喜欢什么");
                b.setPositiveButton("ok", new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        Toast.makeText(MainActivity.this,"你选择了ok",Toast.LENGTH_SHORT).show();
                    }
                });
                b.setNegativeButton("cancel", new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        Toast.makeText(MainActivity.this,"你选择了cancel",Toast.LENGTH_SHORT).show();
                    }
                });
                final String[] items = {"女人","金钱","游戏","房子","车子"};
                b.setSingleChoiceItems(items, 0, new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        Toast.makeText(MainActivity.this, "你选中的是"+items[which], Toast.LENGTH_SHORT).show();
                    }
                });

                AlertDialog alertDialog = b.create();
                alertDialog.show();

多选对话框

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final String[] items = {"女人","金钱","游戏","房子","车子"};
                final boolean[] flags = {false,false,false,false,false};
                AlertDialog.Builder b = new AlertDialog.Builder(MainActivity.this);
                b.setIcon(R.drawable.b);
                b.setTitle("你最喜欢什么");
                b.setPositiveButton("ok", new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        StringBuffer stringBuffer = new StringBuffer();
                        for (int i =0;i<flags.length;i++){
                            if (flags[i]){
                                stringBuffer.append(items[i]+">");
                            }
                        }
                        String s = stringBuffer.toString();
                        Toast.makeText(MainActivity.this,"你选择了ok>"+s,Toast.LENGTH_SHORT).show();
                    }
                });
                b.setNegativeButton("cancel", new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        Toast.makeText(MainActivity.this,"你选择了cancel",Toast.LENGTH_SHORT).show();
                    }
                });

              b.setMultiChoiceItems(items, flags, new DialogInterface.OnMultiChoiceClickListener() {
                  @Override
                  public void onClick(DialogInterface dialog, int which, boolean isChecked) {
                      flags[which]=isChecked;
                  }
              });

                AlertDialog alertDialog = b.create();
                alertDialog.show();

底部导航栏切换selector选择器的使用

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<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:state_checked="true" android:drawable="@drawable/pic_checked"></item>
    <item android:state_checked="false" android:drawable="@drawable/pic_unchecked"></item>
</selector>



<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:state_checked="true" android:color="#2196F3"></item>
    <item android:state_checked="false" android:color="#7C7A7A"></item>
</selector>
//我们给RadioGroup设置监听 RadioButton必须要设置id属性
<RadioGroup
                android:orientation="horizontal"
                android:layout_width="match_parent"
                    android:layout_height="wrap_content">
            <RadioButton
                    android:drawableTop="@drawable/pic_selc"
                    android:id="@+id/rab1"
                    android:text="消息"
                    android:textSize="20dp"
                    android:checked="true"
                    android:textColor="@drawable/text_selc"
                    android:gravity="center"
                    android:button="@null"
                    android:layout_weight="1"
                    android:layout_width="0dp"
                    android:layout_height="wrap_content"/>
            <RadioButton
                    android:drawableTop="@drawable/pic_selc"
                    android:text="联系人"
                    android:textColor="@drawable/text_selc"
                    android:gravity="center"
                    android:textSize="20dp"
                    android:id="@+id/rab2"
                    android:button="@null"
                    android:layout_weight="1"
                    android:layout_width="0dp"
                    android:layout_height="wrap_content"/>
            <RadioButton
                    android:drawableTop="@drawable/pic_selc"
                    android:text="动态"
                    android:textColor="@drawable/text_selc"
                    android:textSize="20dp"
                    android:gravity="center"
                    android:id="@+id/rab3"
                    android:button="@null"
                    android:layout_weight="1"
                    android:layout_width="0dp"
                    android:layout_height="wrap_content"/>

        </RadioGroup>