CountDownTimer实现按钮倒计时
activity_splash.xml中进行布局：
1 <?xml version="1.0" encoding="utf-8"?> 2 <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" 3 xmlns:tools="http://schemas.android.com/tools" 4 android:layout_width="match_parent" 5 android:layout_height="match_parent" 6 android:background="@drawable/launch_bg" 7 tools:context=".activity.SplashActivity"> 8 9 <Button 10 android:id="@+id/btn_skip" 11 android:layout_width="wrap_content" 12 android:layout_height="wrap_content" 13 android:layout_alignParentBottom="true" 14 android:layout_centerHorizontal="true" 15 android:text="跳过" 16 android:textColor="#FFFFFF" 17 android:textStyle="bold" 18 android:textSize="18sp" 19 android:background="@drawable/btn_skip" 20 android:layout_marginBottom="70dp"/> 21 22 </RelativeLayout>
CountDownTimer(5*1000,1000) 第一个参数是总时间，第二个参数是时间间隔，单位为毫秒
1 public class SplashActivity extends AppCompatActivity { 2 3 private Button btn_skip; 4 CountDownTimer timer; 5 6 @Override 7 protected void onCreate(Bundle savedInstanceState) { 8 super.onCreate(savedInstanceState); 9 setContentView(R.layout.activity_splash); 10 init(); 11 } 12 13 private void init() { 14 //初始化布局 15 btn_skip = (Button)findViewById(R.id.btn_skip); 16 17 timer = new CountDownTimer(5*1000,1000) { 18 @Override 19 public void onTick(long l) {//计时过程显示 20 // btn_skip.setText((l/1000+1) + "秒"); 21 } 22 23 @Override 24 public void onFinish() { //计时完毕时触发 25 //界面跳转 26 Intent intent = new Intent(SplashActivity.this,MainActivity.class); 27 startActivity(intent); 28 //关闭SplashActivity 29 SplashActivity.this.finish(); 30 } 31 32 }.start(); 33 34 btn_skip.setOnClickListener(new View.OnClickListener() { 35 @Override 36 public void onClick(View view) { 37 //界面跳转 38 Intent intent = new Intent(SplashActivity.this,MainActivity.class); 39 startActivity(intent); 40 //关闭SplashActivity 41 SplashActivity.this.finish(); 42 } 43 }); 44 45 } 46 //销毁timer 47 @Override 48 protected void onDestroy() { 49 super.onDestroy(); 50 if (timer!=null) { 51 timer.cancel(); 52 } 53 } 54 55 }
