爱玺玺

Intent intent=new Intent(Intent.ACTION_MEDIA_MOUNTED);

intent.setData(Uri.fromFile(Environment.getExternalStorageDirectory()));

//发送一条广播

<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>

eclipse打开, 选择window -> show view -> Other. 选择Android, 选中里面的LogCat即可.

package com.example.paintborad;

import android.support.v7.app.ActionBarActivity;

import android.graphics.Bitmap;

import android.graphics.BitmapFactory;

import android.graphics.Canvas;

import android.graphi

eclipse转成员变量快捷键ctrl+1

然后：

eclipse数据类型转型快捷键ctrl+1

必须先创建副本图片才能修改

package com.example.copyimage;

import android.support.v7.app.ActionBarActivity;

import android.graphics.Bitmap;

import android.graphics.BitmapFactory;

import android.graphics.Canv

package com.example.copyimage;

import android.support.v7.app.ActionBarActivity;

import android.graphics.Bitmap;

import android.graphics.BitmapFactory;

import android.graphics.Canvas;

import android.graphic

package com.example.copyimage;

import android.support.v7.app.ActionBarActivity;

import android.graphics.Bitmap;

import android.graphics.BitmapFactory;

import android.os.Bundle;

import android.view.Menu;

adt android模拟器横竖屏切换 ctrl+f11横屏 ctrl+f12竖屏