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http://stackoverflow.com/questions/8895677/work-around-canvas-clippath-that-is-not-supported-in-android-any-more

http://developer.android.com/guide/topics/graphics/hardware-accel.html

硬件加速不支持的操作

When hardware accelerated, the 2D rendering pipeline supports the most commonly used Canvas drawing operations as well as many less-used operations. All of the drawing operations that are used to render applications that ship with Android, default widgets and layouts, and common advanced visual effects such as reflections and tiled textures are supported. The following list describes known operations that are not supported with hardware acceleration:

Canvas
clipPath()

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在onCreate中加入

getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_HIDDEN);

这样的话，默认不弹出，点击EditText的时候还会弹出。

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# These commands will help you setup the Rails test environment without problems
#
# MAKE SURE YOU HAVE VIRTUAL BOX INSTALLED http://www.virtualbox.org/wiki/Downloads
#
# Copy paste all of following commands in your normal terminal and the following things will happen:
#  - rails_test_box dir is created
#  - rails master branch is checkout in the dir rails
#  - A Gemfile is created and all the gems to run the virtualbox are installed using bundler
#  - The rails vagrant box is downloaded and added to your vagrant boxes
#  - A Vagrantfile is created for vagrant

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package com.devahead.extendingandroidapplication;

import android.app.Application;

public class MyApplication extends Application
{
	@Override
	public void onCreate()
	{
		super.onCreate();

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You can't remove a rule because all rules are always stored in a fixed-size java array. But you can set a rule to 0. For example

layoutParams.addRule(RelativeLayout.RIGHT_OF, 0);
layoutParams.addRule(RelativeLayout.BELOW, R.id.new_ref_LinearLayout);

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//android获取一个用于打开文本文件的intent   
public static Intent getTextFileIntent( String param, boolean paramBoolean)   
{   
    Intent intent = new Intent("android.intent.action.VIEW");   
    intent.addCategory("android.intent.category.DEFAULT");   
    intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);   
    if (paramBoolean)   
    {   
        Uri uri1 = Uri.parse(param );   
        intent.setDataAndType(uri1, "text/plain");   

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// 拍照上传

private OnClickListener mUploadClickListener = new OnClickListener() {


public void onClick(View v) {

// 调用相机

Intent mIntent = new Intent("android.media.action.IMAGE_CAPTURE");

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package com.example.android.apis.app;   
   
// Need the following import to get access to the app resources, since this   
// class is in a sub-package.   
import com.example.android.apis.R;   
   
import java.io.IOException;   
   
import android.app.Activity;   

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参照网上其他童鞋的例子与介绍，修改了一下：
import java.io.IOException;
import java.lang.reflect.Method;
import java.net.URI;
import java.net.URISyntaxException;
import java.util.Arrays;

import javax.tools.JavaCompiler;
import javax.tools.JavaCompiler.CompilationTask;
import javax.tools.JavaFileObject;

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blog = Blog.create
post = blog.make_post text: 'great post', location_country: 'Canada', location_city: 'Toronto'
post.make_comment text: 'great comment', location_country: 'Canada', location_city: 'Toronto'