android 应用 源代码——相册 免费

view plaincopy to clipboardprint? package com.uyu.gesturepro; import android.app.Application; import android.graphics.Bitmap; public class InfoClass extends Application{ private Bitmap bmp; private String name; public String getName(){ return name; } public void setName(String name){ this.name = name; } public Bitmap getBmp(){ return bmp; } public void setBmp(Bitmap bmp){ this.bmp = bmp; } } package com.uyu.gesturepro; import android.app.Application; import android.graphics.Bitmap; public class InfoClass extends Application{ private Bitmap bmp; private String name; public String getName(){ return name; } public void setName(String name){ this.name = name; } public Bitmap getBmp(){ return bmp; } public void setBmp(Bitmap bmp){ this.bmp = bmp; } } 然后再Activitymanifest.xml中注册一下 <application android:name =".InfoClass" android:icon="@drawable/icon" android:label="@string/app_name"> 注意 这里不是重新写一条<application/>，而是在原有的里面加上 android:name =".InfoClass" 接下来是使用 赋值： view plaincopy to clipboardprint? InfoClass info = (InfoClass)getApplication(); info.setBmp(bmp); info.setName(et.getText().toString()); InfoClass info = (InfoClass)getApplication(); info.setBmp(bmp); info.setName(et.getText().toString()); 使用： view plaincopy to clipboardprint? InfoClass info = (InfoClass)getApplication(); tv.setText("手势ID为："+info.getName()); iv.setImageBitmap(info.getBmp()); InfoClass info = (InfoClass)getApplication(); tv.setText("手势ID为："+info.getName()); iv.setImageBitmap(info.getBmp()); OK，Bitmap变量传递过去了，其实这就是一种全局变量的用法，据说比public Static有更好的安全性，呵呵 startActivityForResult的用法 在main_Activity中：注意我这里只需要sub_Activity传回ok or cancel的消息就可以了 所以并没有用intent传值过去，也没有传确切的值回到main，但是如果需要是可以互相传递值的 具体用法就不写了，有需要去网上搜索相应的帖子吧 view plaincopy to clipboardprint? Intent intent = new Intent(); intent.setClass(gesturepro.this, gestureView.class); gesturepro.this.startActivityForResult(intent, 0); Intent intent = new Intent(); intent.setClass(gesturepro.this, gestureView.class); gesturepro.this.startActivityForResult(intent, 0); 在sub_Activitiy中： view plaincopy to clipboardprint? Intent data = new Intent(); setResult(RESULT_OK, data); finish(); Intent data = new Intent(); setResult(RESULT_OK, data); finish(); 值传回来以后，在onActivityResult()方法中处理，根据传回来的resultCode来选择相应的处理 view plaincopy to clipboardprint? protected void onActivityResult(int requestCode, int resultCode, Intent data) { // TODO Auto-generated method stub Log.d("uyu","return"); switch(resultCode){ case RESULT_OK: addMyGesture(et.getText().toString(), gesture); break; case RESULT_CANCELED: tv.setText("重新输入手势："); gov.clear(true); break; default: break; } } 本文来自CSDN博客，转载请标明出处：http://blog.csdn.net/uyu2yiyi/archive/2011/04/10/6313766.aspx