android 按鈕置灰效果

標籤：android   按鈕置灰   

通過設定可點擊  和顏色實現

package com.yqy.yqy_button;import android.app.Activity;import android.os.Bundle;import android.util.Log;import android.view.Menu;import android.view.View;import android.view.View.OnClickListener;import android.widget.Button;public class MainActivity extends Activity {Button btn1,btn2;boolean flag = false;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);btn1 = (Button) findViewById(R.id.button1);btn1.setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View arg0) {Log.e("YQY", "---");}});btn2 = (Button) findViewById(R.id.button2);btn2.setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View arg0) {if(flag){flag = false;btn1.setTextColor(0xFFFFFFFF);btn1.setEnabled(true);}else{flag = true;                btn1.setTextColor(0xFFD0EFC6);btn1.setEnabled(false);}}});}@Overridepublic boolean onCreateOptionsMenu(Menu menu) {// Inflate the menu; this adds items to the action bar if it is present.getMenuInflater().inflate(R.menu.main, menu);return true;}}

xml

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:paddingBottom="@dimen/activity_vertical_margin"    android:paddingLeft="@dimen/activity_horizontal_margin"    android:paddingRight="@dimen/activity_horizontal_margin"    android:paddingTop="@dimen/activity_vertical_margin"    tools:context=".MainActivity" >    <Button        android:id="@+id/button2"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_alignParentRight="true"        android:layout_alignParentTop="true"        android:text="Button" />    <Button        android:id="@+id/button1"        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:layout_alignParentBottom="true"        android:layout_alignParentLeft="true"        android:background="@drawable/btn_register_bg"        android:enabled="false"        android:paddingBottom="7dp"        android:paddingTop="7dp"        android:text="登入"        android:textColor="@android:color/white"        android:textSize="18sp" /></RelativeLayout>

android 按鈕置灰效果