您好,登錄后才能下訂單哦!
import android.app.Activity; import android.os.Bundle; import android.os.Handler; import android.view.Menu; import android.view.MenuItem; import android.view.View; import android.widget.TextView; public class MainActivity extends Activity { TextView textView; Handler handler; Runnable runnable; boolean stop = true; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); textView = (TextView) findViewById(R.id.text); handler = new Handler(); runnable = new Runnable() { @Override public void run() { int a = (int) (Math.random() * 10); textView.setText(a + ""); handler.postDelayed(runnable, 50); } }; } public void start(View view) { if (stop) { handler.postDelayed(runnable, 0); stop = !stop; } else { handler.removeCallbacks(runnable); stop = !stop; } } }
免責(zé)聲明:本站發(fā)布的內(nèi)容(圖片、視頻和文字)以原創(chuàng)、轉(zhuǎn)載和分享為主,文章觀點(diǎn)不代表本網(wǎng)站立場(chǎng),如果涉及侵權(quán)請(qǐng)聯(lián)系站長(zhǎng)郵箱:is@yisu.com進(jìn)行舉報(bào),并提供相關(guān)證據(jù),一經(jīng)查實(shí),將立刻刪除涉嫌侵權(quán)內(nèi)容。