嗨,任何人都可以帮助我完成我的小项目,我一直在关注这个教程,我到达了我在EditText中插入1分钟的部分,进度条工作正常1每秒进度但是当我输入超过1分钟时EditText进度条不起作用.它没有下降请帮忙吗？
main.xml中
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/LinearLayout1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:background="#086A87">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:orientation="horizontal"
android:padding="10dp" >
<EditText
android:id="@+id/edtTimerValue"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:ems="10"
android:hint="minutes"
android:inputType="phone" />
<Button
android:id="@+id/btnStartTime"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="5dp"
android:layout_weight="2"
android:gravity="center"
android:text="Start Timer"
android:background="@drawable/custombuttongreen"
android:textColor="#fff"/>
<Button
android:id="@+id/btnStopTime"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="5dp"
android:layout_weight="2"
android:gravity="center"
android:text="Stop Timer"
android:visibility="gone"
android:background="@drawable/custombuttongreen"
android:textColor="#fff"/>
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:orientation="vertical" >
</LinearLayout>
<RelativeLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content" >
<ProgressBar
android:id="@+id/progressbar"
android:layout_width="350dip"
android:layout_height="350dip"
android:indeterminate="false"
android:progressDrawable="@drawable/circle"
android:background="@drawable/circle_shape"
style="?android:attr/progressBarStyleHorizontal"
android:max="60"
android:progress="0" />
<TextView
android:id="@+id/tvTimeCount"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:text="00:00"
android:textColor="#fff"
android:textSize="60dip"/>
</RelativeLayout>
MainActivity.java
package com.tag.countdowntimer;
import com.tag.countdowntimer.R.drawable;
import android.R.color;
import android.app.Activity;
import android.content.Context;
import android.os.Bundle;
import android.os.CountDownTimer;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.inputmethod.InputMethodManager;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ProgressBar;
import android.widget.TextView;
import android.widget.Toast;
public class MainActivity extends Activity implements OnClickListener {
int i=-1;
ProgressBar mProgressBar;
private Button buttonStartTime,buttonStopTime;
private EditText edtTimerValue;
private TextView textViewShowTime; // will show the time
private CountDownTimer countDownTimer; // built in android class
// CountDownTimer
private long totalTimeCountInMilliseconds; // total count down time in
// milliseconds
private long timeBlinkInMilliseconds; // start time of start blinking
private boolean blink; // controls the blinking .. on and off
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
buttonStartTime = (Button) findViewById(R.id.btnStartTime);
buttonStopTime = (Button) findViewById(R.id.btnStopTime);
textViewShowTime = (TextView) findViewById(R.id.tvTimeCount);
edtTimerValue = (EditText) findViewById(R.id.edtTimerValue);
buttonStartTime.setOnClickListener(this);
buttonStopTime.setOnClickListener(this);
mProgressBar = (ProgressBar) findViewById(R.id.progressbar);
}
@Override
public void onClick(View v) {
if (v.getId() == R.id.btnStartTime) {
textViewShowTime.setTextAppearance(getApplicationContext(),R.style.normalText);
setTimer();
//Hides the Keyboard
InputMethodManager imm = (InputMethodManager)getSystemService(
Context.INPUT_METHOD_SERVICE);
imm.hideSoftInputFromWindow(edtTimerValue.getWindowToken(),0);
buttonStopTime.setVisibility(View.VISIBLE);
buttonStartTime.setVisibility(View.GONE);
edtTimerValue.setVisibility(View.GONE);
edtTimerValue.setText("");
//textViewShowTime.setTextColor(color.white);
//textViewShowTime.getContext();
startTimer();
} else if (v.getId() == R.id.btnStopTime) {
countDownTimer.cancel();
buttonStartTime.setVisibility(View.VISIBLE);
buttonStopTime.setVisibility(View.GONE);
edtTimerValue.setVisibility(View.VISIBLE);
}
}
private void setTimer() {
int time = 0;
if (!edtTimerValue.getText().toString().equals("")) {
time = Integer.parseInt(edtTimerValue.getText().toString());
} else
Toast.makeText(MainActivity.this,"Please Enter Minutes...",Toast.LENGTH_LONG).show();
totalTimeCountInMilliseconds = 60 * time * 1000;
timeBlinkInMilliseconds = 30 * 1000;
}
private void startTimer() {
countDownTimer = new CountDownTimer(totalTimeCountInMilliseconds,500) {
// 500 means,onTick function will be called at every 500
// milliseconds
@Override
public void onTick(long leftTimeInMilliseconds) {
long seconds = leftTimeInMilliseconds / 1000;
//i++;
//Setting the Progress Bar to decrease wih the timer
mProgressBar.setProgress((int) (leftTimeInMilliseconds / 1000));
textViewShowTime.setTextAppearance(getApplicationContext(),R.style.normalColor);
if (leftTimeInMilliseconds < timeBlinkInMilliseconds) {
textViewShowTime.setTextAppearance(getApplicationContext(),R.style.blinkText);
// change the style of the textview .. giving a red
// alert style
if (blink) {
textViewShowTime.setVisibility(View.VISIBLE);
// if blink is true,textview will be visible
} else {
textViewShowTime.setVisibility(View.INVISIBLE);
}
blink = !blink; // toggle the value of blink
}
textViewShowTime.setText(String.format("%02d",seconds / 60)
+ ":" + String.format("%02d",seconds % 60));
// format the textview to show the easily readable format
}
@Override
public void onFinish() {
// this function will be called when the timecount is finished
textViewShowTime.setText("Time up!");
textViewShowTime.setVisibility(View.VISIBLE);
buttonStartTime.setVisibility(View.VISIBLE);
buttonStopTime.setVisibility(View.GONE);
edtTimerValue.setVisibility(View.VISIBLE);
}
}.start();
}
}
正常的定时器状态
当我输入1分钟
当我进入3分钟
进度条不是倒计时
解决方法
在main.xml中,对于ProgressBar,您提到最大值为60.因此,进度条将最大值设为60,进度条从60秒开始逐渐减少.
而不是始终正确地处理您的进度条,在“setTimer()”方法中写下面的行.
mProgressBar.setMax(60*time);
