android日常学习3-23 实现打字游戏
16lz
2021-01-26
MainActivity代码
package com.mz.demo;import org.w3c.dom.Text;import android.app.Activity;import android.graphics.Color;import android.graphics.Typeface;import android.os.Bundle;import android.text.Spannable;import android.text.SpannableString;import android.text.Spanned;import android.text.style.ForegroundColorSpan;import android.text.style.StyleSpan;import android.view.KeyEvent;import android.widget.TextView;import android.widget.Toast;public class MainActivity extends Activity { private TextView tv_in; private int count=1; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); tv_in=(TextView)this.findViewById(R.id.tv1); //处理键盘事件 } @Override public boolean onKeyDown(int keyCode, KeyEvent event) { // TODO Auto-generated method stub //1.首先获得用户输入的字符 char ch=Character.toLowerCase(event.getDisplayLabel()); if(ch==tv_in.getText().charAt(count-1) && event.getAction()==KeyEvent.ACTION_DOWN){ //将文字更改类型 SpannableString ss=new SpannableString(tv_in.getText().toString()); ss.setSpan(new ForegroundColorSpan(Color.RED), 0, count, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);//更改了字符的颜色 ss.setSpan(new StyleSpan(Typeface.BOLD_ITALIC), 0, count, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);//更改了字符 count++; tv_in.setText(ss); } if(count==tv_in.length()){ Toast toast=Toast.makeText(MainActivity.this,"成功!",Toast.LENGTH_LONG); toast.show(); } return super.onKeyDown(keyCode, event); }}
需要注意的是,在打完所有字母后,如果再继续输入就造成溢出
main.xml代码
<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="vertical" > <TextView android:id="@+id/tv1" android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="@string/content" android:textSize="20sp" /></LinearLayout>
strings.xml
<?xml version="1.0" encoding="utf-8"?><resources> <string name="hello">Hello World, MainActivity!</string> <string name="app_name">WriteDemo01</string> <string name="content">are you ok mi fans do you want a mi band </string></resources>
更多相关文章
- Android(安卓)Code Review
- Http 以post方式获取数据
- android 开发真机测试,无法安装调试解决
- android 源代码下载
- Android(安卓)代码监控apk安装,卸载,替换
- 百度地图实现拖动图标输入地址
- andriod之ContentProvider读取外部存储图片
- Android用Proguard混淆代码遇到的问题
- [置顶] android 无线调试