使用
第一种方案：自定义控件
1.在布局中使用
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:gravity="center"
android:layout_height="match_parent"> <com.ywj.countdowntextviewdemo.CountDownTextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/countDownTextView"
android:text="Hello World!" />
</RelativeLayout>
2.在Activity中获取控件使用
CountDownTextView countDownTextView = (CountDownTextView) findViewById(R.id.countDownTextView);
countDownTextView.setCountDownMillis();
countDownTextView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Log.e("MainActivity","点击事件");
}
});
countDownTextView.start();
3.CountDownTextView.java
import android.content.Context;
import android.os.Handler;
import android.os.Message;
import android.support.annotation.ColorRes;
import android.support.annotation.Nullable;
import android.util.AttributeSet;
import android.util.Log;
import android.view.View;
import android.widget.TextView; /**
* 倒计时TextView
* Created by weijing on 2017-08-21 14:43.
*/ public class CountDownTextView extends TextView { /**
* 提示文字
*/
private String mHintText = "重新发送"; /**
* 倒计时时间
*/
private long mCountDownMillis = 60_000; /**
* 剩余倒计时时间
*/
private long mLastMillis;
/**
* 间隔时间差(两次发送handler)
*/
private long mIntervalMillis = 1_000;
/**
* 开始倒计时code
*/
private final int MSG_WHAT_START = 10_010;
/**
* 可用状态下字体颜色Id
*/
private int usableColorId = android.R.color.holo_blue_light;
/**
* 不可用状态下字体颜色Id
*/
private int unusableColorId = android.R.color.darker_gray; public CountDownTextView(Context context) {
super(context);
} public CountDownTextView(Context context, @Nullable AttributeSet attrs) {
super(context, attrs);
} public CountDownTextView(Context context, @Nullable AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
} private Handler mHandler = new Handler() {
@Override
public void handleMessage(Message msg) {
super.handleMessage(msg); switch (msg.what) {
case MSG_WHAT_START:
// Log.e("l", mLastMillis + "");
if (mLastMillis > ) {
setUsable(false);
mLastMillis -= mIntervalMillis;
mHandler.sendEmptyMessageDelayed(MSG_WHAT_START, mIntervalMillis);
} else {
setUsable(true);
}
break;
}
}
}; /**
* 设置是否可用
*
* @param usable
*/
public void setUsable(boolean usable) { if (usable) {
//可用
if (!isClickable()) {
setClickable(usable);
setTextColor(getResources().getColor(usableColorId));
setText(mHintText);
}
} else {
//不可用
if (isClickable()) {
setClickable(usable);
setTextColor(getResources().getColor(unusableColorId));
}
setText(mLastMillis / + "秒后" + mHintText);
} } /**
* 设置倒计时颜色
*
* @param usableColorId 可用状态下的颜色
* @param unusableColorId 不可用状态下的颜色
*/
public void setCountDownColor(@ColorRes int usableColorId, @ColorRes int unusableColorId) {
this.usableColorId = usableColorId;
this.unusableColorId = unusableColorId;
} /**
* 设置倒计时时间
*
* @param millis 毫秒值
*/
public void setCountDownMillis(long millis) {
mCountDownMillis = millis;
} /**
* 开始倒计时
*/
public void start() {
mLastMillis = mCountDownMillis;
mHandler.sendEmptyMessage(MSG_WHAT_START);
} /**
* 重置倒计时
*/
public void reset() {
mLastMillis = ;
mHandler.sendEmptyMessage(MSG_WHAT_START);
} @Override
public void setOnClickListener(@Nullable final OnClickListener onClickListener) {
super.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
mHandler.removeMessages(MSG_WHAT_START);
start();
onClickListener.onClick(v);
}
}); } @Override
protected void onDetachedFromWindow() {
super.onDetachedFromWindow();
mHandler.removeMessages(MSG_WHAT_START);
}
}
第二种方案：工具类
1.在activity中使用
TextView textView = (TextView) findViewById(R.id.textView);
new CountDownUtil(textView)
.setCountDownMillis(60_000L)//倒计时60000ms
.setCountDownColor(android.R.color.holo_blue_light,android.R.color.darker_gray)//不同状态字体颜色
.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Log.e("MainActivity","发送成功");
}
})
.start();
2.CountDownUtil.java
import android.os.Handler;
import android.os.Message;
import android.support.annotation.ColorRes;
import android.support.annotation.Nullable;
import android.view.View;
import android.widget.TextView; import java.lang.ref.WeakReference; /**
* 倒计时工具
* Created by weijing on 2017-08-22 11:50.
*/ public class CountDownUtil {
/**
* 开始倒计时code
*/
private final int MSG_WHAT_START = 10_010;
/**
* 弱引用
*/
private WeakReference<TextView> mWeakReference;
/**
* 倒计时时间
*/
private long mCountDownMillis = 60_000;
/**
* 提示文字
*/
private String mHintText = "重新发送"; /**
* 剩余倒计时时间
*/
private long mLastMillis; /**
* 间隔时间差(两次发送handler)
*/
private long mIntervalMillis = 1_000; /**
* 可用状态下字体颜色Id
*/
private int usableColorId = android.R.color.holo_blue_light;
/**
* 不可用状态下字体颜色Id
*/
private int unusableColorId = android.R.color.darker_gray; private Handler mHandler = new Handler() {
@Override
public void handleMessage(Message msg) {
super.handleMessage(msg); switch (msg.what) {
case MSG_WHAT_START:
if (mLastMillis > ) {
setUsable(false);
mLastMillis -= mIntervalMillis;
if (mWeakReference.get() != null) {
mHandler.sendEmptyMessageDelayed(MSG_WHAT_START, mIntervalMillis);
}
} else {
setUsable(true);
}
break;
}
}
}; public CountDownUtil(TextView textView) {
mWeakReference = new WeakReference<>(textView);
} public CountDownUtil(TextView textView, long countDownMillis) {
mWeakReference = new WeakReference<>(textView);
this.mCountDownMillis = countDownMillis;
} public CountDownUtil setCountDownMillis(long countDownMillis) {
this.mCountDownMillis = countDownMillis;
return this;
} /**
* 设置是否可用
*
* @param usable
*/
private void setUsable(boolean usable) {
TextView mTextView = mWeakReference.get();
if (mTextView != null) {
if (usable) {
//可用
if (!mTextView.isClickable()) {
mTextView.setClickable(usable);
mTextView.setTextColor(mTextView.getResources().getColor(usableColorId));
mTextView.setText(mHintText);
}
} else {
//不可用
if (mTextView.isClickable()) {
mTextView.setClickable(usable);
mTextView.setTextColor(mTextView.getResources().getColor(unusableColorId));
}
String content = mLastMillis / + "秒后" + mHintText;
mTextView.setText(content); }
}
} /**
* 设置倒计时颜色
*
* @param usableColorId 可用状态下的颜色
* @param unusableColorId 不可用状态下的颜色
*/
public CountDownUtil setCountDownColor(@ColorRes int usableColorId, @ColorRes int unusableColorId) {
this.usableColorId = usableColorId;
this.unusableColorId = unusableColorId;
return this;
} /**
* 开始倒计时
*/
public CountDownUtil start() {
mLastMillis = mCountDownMillis;
mHandler.sendEmptyMessage(MSG_WHAT_START);
return this;
} public CountDownUtil setOnClickListener(@Nullable final View.OnClickListener onClickListener) {
TextView mTextView = mWeakReference.get();
if (mTextView != null)
mTextView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
mHandler.removeMessages(MSG_WHAT_START);
start();
onClickListener.onClick(v);
}
});
return this;
} /**
* 重置停止倒计时
*/
public CountDownUtil reset() {
mLastMillis = ;
mHandler.sendEmptyMessage(MSG_WHAT_START);
return this;
}
TextView textView = (TextView) findViewById(R.id.textView);
new CountDownUtil(textView)
.setCountDownMillis(60_000L)//倒计时60000ms
.setCountDownColor(android.R.color.holo_blue_light,android.R.color.darker_gray)//不同状态字体颜色
.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Log.e("MainActivity","发送成功");
}
})
.start();