本文所述的程序实现的功能为在软件中动态的选择组件背景,系统皮肤,自定义吐司背景等。
为实现这一要求,就需要用到安卓中的SharedPrefence的功能,首先在设置里面写一个控件,设置一个点击监听器,点击的时候显示一个Alert选择弹窗,让你进行选择,对这个弹窗再设置一个点击监听器(onItemListener),点击到具体某个的时候,把对应的点击id保存到sahredprefence里面去,这样,其他地方就可以从这里取得设置里选择的值,进行动态个性化处理。
具体代码如下:
1.设置选择的操作:
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scv_setAddressBg.setOnClickListener( new OnClickListener() {
@Override
public void onClick(View v) {
int which = sp.getInt( "which" , 0 );
final String[] items = { "半透明" , "活力橙" , "卫士蓝" , "金属灰" , "苹果绿" };
AlertDialog.Builder builder = new Builder(SettingActivity. this );
builder.setTitle( "设置归属地显示背景" );
builder.setSingleChoiceItems(items, which, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
Editor edit = sp.edit();
edit.putInt( "which" , which);
edit.commit();
scv_setAddressBg.setDesc(items[which]);
dialog.dismiss();
}
});
builder.setNegativeButton( "取消" , null );
builder.show();
}
});
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2.显示自定义吐司的操作:
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public void showMyToast(String address) {
<span style= "color:#ff6600;" > int [] ids = {R.drawable.call_locate_white,R.drawable.call_locate_orange,R.drawable.call_locate_blue
,R.drawable.call_locate_gray,R.drawable.call_locate_green};</span>
<span style= "color:#ff6600;" >SharedPreferences sp = getSharedPreferences( "config" , MODE_PRIVATE);
int which = sp.getInt( "which" , 1 );</span>
view = View.inflate( this , R.layout.address_show, null );
TextView textView = (TextView) view.findViewById(R.id.tv_address);
textView.setText(address);
<span style= "color:#ff6600;" >view.setBackgroundResource(ids[which]);</span>
WindowManager.LayoutParams params = new WindowManager.LayoutParams();
params.height = WindowManager.LayoutParams.WRAP_CONTENT;
params.width = WindowManager.LayoutParams.WRAP_CONTENT;
params.flags = WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE
| WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE
| WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON;
params.format = PixelFormat.TRANSLUCENT;
params.type = WindowManager.LayoutParams.TYPE_TOAST;
wm.addView(view, params);
}
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3.归纳总结如下:
(1)要注意数组的应用,ids[ value]这种使用方式要能想到用,将图片资源文件写在一个ids数组里是个很好的方式和想法。
(2)细心,获得sp的时候名字写错了,config写成了configs。
(3)理解调试技巧是靠经验和逻辑推理的,都很重要。