[安卓]手机管家(二十一)杀毒UI及SlidingDrawer(抽屉效果)

关于布局

扫描的圈圈是两张图叠加在一块的，需要帧布局

进度条的属性 用到style

注意，随着扫描的越来越多，listview应该在scroll里面，否则屏幕满了动不了

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<TextView
android:layout_width="fill_parent"
android:layout_height="60dp"
android:text="手机杀毒"
android:background="#00FF00"
android:gravity="center"
android:textSize="25sp"/>

<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content">
<FrameLayout android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/iv_antivirus_rador">
<ImageView
android:layout_margin="5dp"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/ic_scanner_malware"/>
<ImageView
android:id="@+id/iv_antivirus_scan"
android:layout_margin="5dp"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/act_scanning_03"/>
</FrameLayout>

<LinearLayout
android:layout_width="fill_parent"
android:layout_height="70dp"
android:layout_toRightOf="@id/iv_antivirus_rador"
android:orientation="vertical"
android:gravity="center_vertical">
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:id="@+id/tv_antivirus_scan"
android:text="正在扫描.."
android:layout_gravity="center"/>

<ProgressBar
android:id="@+id/pb_antivirus_progress"
android:progressDrawable="@drawable/progress_horizontal"
style="?android:attr/progressBarStyleHorizontal"
android:layout_width="fill_parent"
android:layout_height="wrap_content"/>
</LinearLayout>
</RelativeLayout>

<ScrollView
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:id="@+id/ll_antivirus_packagename"
android:orientation="vertical">
</LinearLayout>
</ScrollView>
</LinearLayout>

图标要转起来，这里要用到动画

public class AntiVirusActivity extends Activity {

@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_antivirus);

//圆圈转动
ImageView iv_antivirus_scan = (ImageView) findViewById(R.id.iv_antivirus_scan);
RotateAnimation rotateAnimation = new RotateAnimation(0, 360, Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF, 0.5f);
rotateAnimation.setDuration(10000);
rotateAnimation.setRepeatCount(100);
iv_antivirus_scan.setAnimation(rotateAnimation);
rotateAnimation.start();
}

接下来来扫描程序

public class AntiVirusActivity extends Activity {
private LinearLayout ll;
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_antivirus);

//3.1 返回的app的list显示出来，在这个list里
ll = (LinearLayout) findViewById(R.id.ll_antivirus_packagename);

//1.圆圈转动
ImageView iv_antivirus_scan = (ImageView) findViewById(R.id.iv_antivirus_scan);
RotateAnimation rotateAnimation = new RotateAnimation(0, 360, Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF, 0.5f);
rotateAnimation.setDuration(10000);
rotateAnimation.setRepeatCount(100);
iv_antivirus_scan.setAnimation(rotateAnimation);
rotateAnimation.start();
//不能放在主线程，否则进去的时候会有个黑屏，主线程被阻塞
new Thread(){
public void run() {
scanapps();
};
}.start();

}
//2.扫描并显示
private void scanapps() {
PackageManager pm = getPackageManager();
//3.2 获得所有安装的程序，并且返回一个list
List<ApplicationInfo> ia = pm.getInstalledApplications(0);
for(ApplicationInfo applicationInfo : ia){

//3.3 需要通过textview来将包名加进list
TextView tv = new TextView(this);
tv.setText(applicationInfo.packageName);
ll.addView(tv);

//4 睡一会，否则速度太快，用户看不到查杀过程
try {
Thread.sleep(1000);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}

}

走起，挂了，因为在子线程刷了UI (addView)

则handler是必须的，addview应该在handler里

public class AntiVirusActivity extends Activity {
private LinearLayout ll;
private RotateAnimation rotateAnimation;
private TextView tv_antivirus_scan;
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_antivirus);

//3.1 返回的app的list显示出来，在这个list里
ll = (LinearLayout) findViewById(R.id.ll_antivirus_packagename);

//1.圆圈转动
ImageView iv_antivirus_scan = (ImageView) findViewById(R.id.iv_antivirus_scan);
rotateAnimation = new RotateAnimation(0, 360, Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF, 0.5f);
rotateAnimation.setDuration(10000);
rotateAnimation.setRepeatCount(100);
iv_antivirus_scan.setAnimation(rotateAnimation);
rotateAnimation.start();
//不能放在主线程，否则进去的时候会有个黑屏，主线程被阻塞
new Thread(){
public void run() {
scanapps();
};
}.start();

}
//2.扫描并显示
private void scanapps() {
PackageManager pm = getPackageManager();
//3.2 获得所有安装的程序，并且返回一个list
List<ApplicationInfo> ia = pm.getInstalledApplications(0);
for(ApplicationInfo applicationInfo : ia){
//获得包名
String packagename = applicationInfo.packageName;
//发消息
Message msg = myHandler.obtainMessage();
msg.obj = packagename;
msg.what = 0;
myHandler.sendMessage(msg);
//4 睡一会，否则速度太快，用户看不到查杀过程
try {
Thread.sleep(200);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
//扫完发的消息，无需带数据，通知即可
Message msg = myHandler.obtainMessage();
msg.what=1;
myHandler.sendMessage(msg);
}
Handler myHandler = new Handler(){
public void handleMessage(android.os.Message msg) {
if (msg.what==0) {
String packagename = (String) msg.obj;
//3.3 需要通过textview来将包名加进list
TextView tv = new TextView(AntiVirusActivity.this);
tv.setText(packagename);
//将新的显示放在第一位
ll.addView(tv,0);
}
else if (msg.what ==1) {
rotateAnimation.cancel();
tv_antivirus_scan.setText("扫描完成");
}
};
};
}

跟新进度条，在扫描前加一个最大值

//5.1 找到进度条
pb = (ProgressBar) findViewById(R.id.pb_antivirus_progress);

//3.2 获得所有安装的程序，并且返回一个list
List<ApplicationInfo> ia = pm.getInstalledApplications(0);

//5.2 进度条的最大值
pb.setMax(ia.size());

扫描的同时更新

//3.3 需要通过textview来将包名加进list
TextView tv = new TextView(AntiVirusActivity.this);
tv.setText(packagename);
//将新的显示放在第一位
ll.addView(tv,0);
//5.3 进度条更新
pb.setProgress(count++);

至于怎么杀毒，在获取applicationInfo时，通过某些算法来实现，比如查看签名什么的

另外关于流量统计：

用到UID，以及trafficStats类

在布局上，有一种类似于抽屉的框架 SlidingDrawer

关键是必须有子控件 ID上要注意

<TextView
android:layout_width="fill_parent"
android:layout_height="60dp"
android:text="流量统计"
android:background="#00FF00"
android:gravity="center"
android:textSize="25sp"/>
<SlidingDrawer
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:handle="@+id/drawerhalder"
android:content="@+id/drawercontent"
android:orientation="horizontal">
<ImageView
android:id="@id/drawerhalder"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/img3" />
<LinearLayout
android:id="@id/drawercontent"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical"
android:background="#00FF00">
</LinearLayout>
</SlidingDrawer>