TextView 跑马灯成效 - 异步加载进度展示

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▪TextView 跑马灯成效 TextView 跑马灯效果 package ddd.testdd.com; 1、重新封装了TextView import android.content.Context; import android.util.AttributeSet; import android.widget.TextView; public class AlwaysMarqueeTextView extends TextView { pub.........

▪ 异步加载进度展示异步加载进度显示 package com.rcsit.android.mas.email.dialog; import android.app.Activity; import android.app.ProgressDialog; import android.content.DialogInterface; import android.content.DialogInterface.OnCancelListener; import android.os.As.........

▪ 更新button下的数字更新button上的数字 public class CounterButton extends Button{ protected int count=0; protected final Paint myTextPaint = new Paint(); protected final Paint myCirclePaint = new Paint(); public Cou.........

[1]TextView 跑马灯成效

来源: 互联网发布时间: 2014-02-18

TextView 跑马灯效果

package ddd.testdd.com;

1、重新封装了TextView

import android.content.Context;

import android.util.AttributeSet;

import android.widget.TextView;

public class AlwaysMarqueeTextView extends TextView {

public AlwaysMarqueeTextView(Context context) {

super(context);

}

public AlwaysMarqueeTextView(Context context, AttributeSet attrs) {

super(context, attrs);

}

public AlwaysMarqueeTextView(Context context, AttributeSet attrs, int defStyle) {

super(context, attrs, defStyle);

}

@Override

public boolean isFocused() {

return true;

}

2 在xml中调用

<?xml version="1.0" encoding="utf-8"?>

<linearlayout xmlns:android="http://schemas.android.com/apk/res/android"

android:orientation="vertical" android:layout_width="fill_parent"

android:layout_height="fill_parent">

<ddd.testdd.com.alwaysmarqueetextview

android:text="哈哈我的跑马灯程序接下来是歌词呵呵：沉鱼落雁，闭月羞花"

android:focusableintouchmode="true" android:scrollhorizontally="true"

android:marqueerepeatlimit="marquee_forever" android:singleline="true"

android:focusable="true" android:ellipsize="marquee"

android:layout_width="match_parent" android:layout_height="wrap_content"

android:gravity="center|clip_horizontal"/>

</linearlayout>

1 楼 shadow88 2011-08-20

这个方法是不错，但是如果是由多个组件组合，只有这个获得了焦点，那么其他的事件都不能用了，比如说：我写了个listView，在list item里有textview（跑马灯）还有imageview以及我要点击这个list item进入下一个activity 怎么办呢

[2] 异步加载进度展示

来源: 互联网发布时间: 2014-02-18

异步加载进度显示

package com.rcsit.android.mas.email.dialog;

import android.app.Activity;
import android.app.ProgressDialog;
import android.content.DialogInterface;
import android.content.DialogInterface.OnCancelListener;
import android.os.AsyncTask;
import android.widget.Toast;

/**
 * 异步加载类
 *
 * @author wanglin(lin3.wang@changhong.com)
 * 2011-5-20下午04:01:02
 */
public abstract class LoadingDialog<Input, Result> extends
  AsyncTask<Input, WSError, Result> {

 private ProgressDialog mProgressDialog;
 protected Activity mActivity;
 private int mLoadingMsg;
 private int mFailMsg;
 private boolean mEnddismiss = true; 
 
 public LoadingDialog(Activity activity, int loadingMsg, int failMsg) {
  this.mActivity = activity;
  this.mLoadingMsg = loadingMsg;
  this.mFailMsg = failMsg;
 }

 public LoadingDialog(Activity activity, int loadingMsg, int failMsg,
   boolean Enddismiss) {
  this.mActivity = activity;
  this.mLoadingMsg = loadingMsg;
  this.mFailMsg = failMsg;
  this.mEnddismiss = Enddismiss;
 }

 /**
  * 用户调用取消时，要做的操作
  */
 @Override
 public void onCancelled() {
  failMsg();
  super.onCancelled();
 }

 @Override
 public void onPreExecute() {
  String title = "";
  String message = mActivity.getString(mLoadingMsg);
  mProgressDialog = ProgressDialog.show(mActivity, title, message, true,
    true, new OnCancelListener() {

     public void onCancel(DialogInterface dialogInterface) {
      LoadingDialog.this.cancel(true);
     }

    });
  super.onPreExecute();
 }

 /**
  * 后台执行，比较耗时的操作都可以放在这里。注意这里不能直接操作UI。
  */
 @Override
 public abstract Result doInBackground(Input... params);

 /**
  * 相当于Handler 处理UI的方式
  */
 @Override
 public void onPostExecute(Result result) {
  super.onPostExecute(result);
  if (!this.mEnddismiss)
   mProgressDialog.dismiss();
  if (result != null) {
   doStuffWithResult(result);
  } else {
   failMsg();
  }
  if (this.mEnddismiss)
   mProgressDialog.dismiss();
 }

 protected void failMsg() {
  Toast.makeText(mActivity, mFailMsg, 2000).show();
 }

 /**
  * Very abstract function hopefully very meaningful name, executed when
  * result is other than null
  * 
  * @param result
  * @return
  */
 public abstract void doStuffWithResult(Result result);

 /**
  * 使用进度条增加用户体验度
  */
 @Override
 protected void onProgressUpdate(WSError... values) {
  Toast.makeText(mActivity, values[0].getMessage(), Toast.LENGTH_LONG)
    .show();
  this.cancel(true);
  mProgressDialog.dismiss();
  super.onProgressUpdate(values);
 }

}

[3] 更新button下的数字

来源: 互联网发布时间: 2014-02-18

更新button上的数字

public class CounterButton extends Button{
        protected int count=0;
        protected final Paint myTextPaint = new Paint();
        protected final Paint myCirclePaint = new Paint();

        public CounterButton(Context context, AttributeSet attrs) {
            super(context, attrs);
            this.setBackgroundDrawable(getResources().getDrawable(android.R.drawable.ic_dialog_email));
            this.myCirclePaint.setARGB(150, 255, 0, 0);
            this.myTextPaint.setARGB(150, 255, 255, 255);

        }

        @Override
        protected void onDraw(Canvas canvas) {
                    if(count!=0){
            canvas.drawCircle((float) (this.getWidth()*.75), (float) (this.getHeight()*.4), this.getHeight()/5, myCirclePaint);
            canvas.drawText(Integer.toString(count), (float) (this.getWidth()*.75), (float) (this.getHeight()*.4), this.myTextPaint);
             }
        }
    }

CounterButton cb=(CounterButton) findViewById(R.id.whateverYouGaveItInXML);
cb.count=SomeNewNumber;
cb.invalidate;