我的应用中有一个倒计时器。每当我点击图像视图时，它应该暂停10秒并在10秒后自动启动。我使用下面的代码。它不工作！我怎样才能成为可能？
MainActivity.java：
package app.thesis.boogleit;
import java.util.ArrayList;
import java.util.concurrent.TimeUnit;
import android.annotation.SuppressLint;
import android.annotation.TargetApi;
import android.app.Activity;
import android.content.Intent;
import android.os.Build;
import android.os.Bundle;
import android.os.CountDownTimer;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.ArrayAdapter;
import android.widget.AutoCompleteTextView;
import android.widget.EditText;
import android.widget.ImageButton;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.TextView;
@TargetApi(Build.VERSION_CODES.GINGERBREAD) @SuppressLint("NewApi")
public class MainActivity extends Activity {
//VARIABLES by AL
DBAdapter dbHelper;
EditText words, scores, search;
ImageView show_addWord;
TextView score, tv2, tv3;
//GAMEPLAY by LOVELY
protected static final String TAG = null;
String generatedString = " ";
AutoCompleteTextView text;
TextView timer;
ImageView searchWord;
ImageView blizzard, bomb, searchword, lineone;
ImageButton image1, image2, image3, image4, image5, image6, image7, image8,
image9, image10, image11, image12, image13, image14, image15, image16;
ListView wordList;
private CountDownTimer countDownTimer;
private boolean timeHasStarted = false;
@SuppressLint("CutPasteId") @Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
dbHelper =new DBAdapter(this);
search = (EditText) findViewById(R.id.textHere);
words = (EditText) findViewById(R.id.edWord);
scores = (EditText) findViewById(R.id.edScore);
show_addWord = (ImageView) findViewById(R.id.show_addWord);
show_addWord.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
//buttonSound.start();
startActivity(new Intent("app.thesis.boggleit.ADDWORD"));
}
});
blizzard = (ImageView) findViewById(R.id.blizzard);
bomb = (ImageView) findViewById(R.id.bomb);
searchWord = (ImageView) findViewById(R.id.searchWord);
wordList = (ListView) findViewById(R.id.wordList);
image1 = (ImageButton) findViewById(R.id.Button1);
image2 = (ImageButton) findViewById(R.id.Button2);
image3 = (ImageButton) findViewById(R.id.Button3);
image4 = (ImageButton) findViewById(R.id.Button4);
image5 = (ImageButton) findViewById(R.id.Button5);
image6 = (ImageButton) findViewById(R.id.Button6);
image7 = (ImageButton) findViewById(R.id.Button7);
image8 = (ImageButton) findViewById(R.id.Button8);
image9 = (ImageButton) findViewById(R.id.Button9);
image10 = (ImageButton) findViewById(R.id.Button10);
image11 = (ImageButton) findViewById(R.id.Button11);
image12 = (ImageButton) findViewById(R.id.Button12);
image13 = (ImageButton) findViewById(R.id.Button13);
image14 = (ImageButton) findViewById(R.id.Button14);
image15 = (ImageButton) findViewById(R.id.Button15);
image16 = (ImageButton) findViewById(R.id.Button16);
timer = (TextView) this.findViewById(R.id.timer);
timer.setText("00:00:30");
countDownTimer = new MyCountDownTimer(30000,1000);
final AutoCompleteTextView text = (AutoCompleteTextView) findViewById(R.id.textHere);
final ImageButton image1 = (ImageButton) findViewById(R.id.Button1);
//array of images
final int[] myPics = { };
//random images
//pause time and resume time automatically
blizzard.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (!timeHasStarted) {
countDownTimer.cancel();
timeHasStarted = false;
}
else {
countDownTimer.start();
timeHasStarted = true;
}
}
});
bomb.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
//random image
}
});
//click imgbuttons> display text in txtview > start countdounttimer
OnClickListener myCommoClickListner = new OnClickListener(){
@Override
public void onClick(View arg0) {
Log.i(TAG,"arg0.getId() = " + arg0.getId());
if(arg0.getId()==R.drawable.a){
Log.i(TAG,"arg0.getId()="+arg0.getId());
generatedString=generatedString+"a"; //[PLACEE RESPACTIVE CHARACTEER HERE]
text.setText(generatedString);
if (!timeHasStarted) {
countDownTimer.start();
timeHasStarted = true;
}
}
};
image1.setOnClickListener(myCommoClickListner);
}
//Countdowntimer
@TargetApi(Build.VERSION_CODES.GINGERBREAD) @SuppressLint("NewApi") public class MyCountDownTimer extends CountDownTimer{
public MyCountDownTimer(long millisInFuture, long countDownInterval){
super(millisInFuture, countDownInterval);
}
@TargetApi(Build.VERSION_CODES.GINGERBREAD) @SuppressLint("NewApi") @Override
public void onTick(long millisUntilFinished) {
// TODO Auto-generated method stub
long millis = millisUntilFinished;
String hms = String.format("%02d:%02d:%02d", TimeUnit.MILLISECONDS.toHours(millis),
TimeUnit.MILLISECONDS.toMinutes(millis) - TimeUnit.HOURS.toMinutes(TimeUnit.MILLISECONDS.toHours(millis)),
TimeUnit.MILLISECONDS.toSeconds(millis) - TimeUnit.MINUTES.toSeconds(TimeUnit.MILLISECONDS.toMinutes(millis)));
System.out.println(hms);
timer.setText(hms);
}
@Override
public void onFinish() {
// TODO Auto-generated method stub
timer.setText("Time's Up!");
}
}
// search word on db > display score in 2 textview
private int optionTxtView = 0 ;
public void viewWord(View view)
{
// String data= dbHelper.getAllData();
// Message.message(this, data);
score = (TextView)findViewById(R.id.yourScore);
tv2 = (TextView)findViewById(R.id.tv2);
tv3 = (TextView)findViewById(R.id.tv3);
searchWord = (ImageView) findViewById(R.id.searchWord);
wordList = (ListView) findViewById(R.id.wordList);
text = (AutoCompleteTextView) findViewById(R.id.textHere);
wordList = (ListView) findViewById(R.id.wordList);
String s1= search.getText().toString();
String s2= dbHelper.getData(s1);
//Message.message(this, s2);
if(optionTxtView == 0){
//display the score on textview1
score.setText(s2);
tv2.setText(s2);
optionTxtView = 1;
}else{
//display the score on textview2
tv3.setText(s2);
optionTxtView = 0;
}
ArrayAdapter<String> adapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, new ArrayList<String>());
wordList.setAdapter(adapter);
adapter.add(text.getText().toString());
adapter.notifyDataSetChanged();
text.setText("");
}
}
答案 0 :(得分：0)
您可以轻松使用Handler和Runnable
声明如下：
private static Handler handler = new Handler();
private int totalTimeToRun = 30;//in seconds
private Runnable timerHandler = new Runnable() {
public int runnableCount = 0;
@Override
public void run() {
handler.removeCallbacks(this);
//do what the timer is supposed to do when it runs
if(runnableCount == 30) {
//30 seconds are up
//reset
runnableCount = 0;//so we can reuse it
} else {
//update the time values
//time left in seconds = 30-runnableCount
handler.postDelayed(this, 1000);//every second
}
runnableCount++;
}
}
每当需要暂停＆＃39;计时器，只需调用以下内容：
handler.removeCallbacks(timerHandler);
到＆＃39;恢复＆＃39;计时器，只需调用以下内容：
handler.post(timerHandler);
希望你明白这个想法