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[操作系统]android SharedPreferences 轻量级存储!


首先在当前进程也就是当前的项目里面进行存储

SharedPreferences.Editor editor = mContext.getSharedPreferences("tvplay", Context.MODE_PRIVATE).edit();
editor.putString("video", content.getString("video"));
editor.commit();

这是存

SharedPreferences preferences = getTargetContext().getSharedPreferences("tvplay", Context.MODE_PRIVATE);
video = preferences.getString("video", "");

这是取

跨进程SharedPreferences进程存储

SharedPreferences.Editor editor = mContext.getSharedPreferences("tvplay", Context.MODE_WORLD_READABLE).edit();
editor.putString("video", content.getString("video"));
editor.commit();

这是存跟上面存唯一不同就是模式换了,不懂可以百度!

private static final String TARGET_PACKAGE_NAME = "com.sdmc.hotel.ollauncher";// 目标数据程序的包名,

SharedPreferences preferences = getTargetContext().getSharedPreferences("tvplay", Context.MODE_PRIVATE);
video = preferences.getString("video", "");

private Context getTargetContext(){
try {
return createPackageContext(TARGET_PACKAGE_NAME, Context.CONTEXT_IGNORE_SECURITY);
} catch (NameNotFoundException e) {
e.printStackTrace();
}
return null;
}

这是取,跟上面不同的就是要创建一个你要取的进程的context,然后在调用getSharedPreferences()方法