add script running repleatedly support, change min sdk version to 17

autojs/build.gradle

@@ -5,7 +5,7 @@ android {
     buildToolsVersion "25.0.2"
 
     defaultConfig {
-        minSdkVersion 19
+        minSdkVersion 17
         targetSdkVersion 25
         versionCode 1
         versionName "1.0"

autojs/src/main/java/com/stardust/autojs/execution/ExecutionConfig.java

@@ -9,6 +9,9 @@ public class ExecutionConfig implements Serializable {
 
     private String[] mRequirePath = new String[0];
     private static final ExecutionConfig DEFAULT = new ExecutionConfig();
+    public long delay = 0;
+    public long interval = 0;
+    public int loopTimes = 1;
 
     public static ExecutionConfig getDefault() {
         return DEFAULT;
@@ -29,4 +32,11 @@ public class ExecutionConfig implements Serializable {
     public String[] getRequirePath() {
         return mRequirePath;
     }
+
+    public ExecutionConfig loop(long delay, int loopTimes, long interval) {
+        this.delay = delay;
+        this.loopTimes = loopTimes;
+        this.interval = interval;
+        return this;
+    }
 }

autojs/src/main/java/com/stardust/autojs/execution/RunnableScriptExecution.java

@@ -5,6 +5,7 @@ import android.util.Log;
 import com.stardust.autojs.ScriptEngineService;
 import com.stardust.autojs.engine.RhinoJavaScriptEngine;
 import com.stardust.autojs.engine.ScriptEngine;
+import com.stardust.autojs.runtime.ScriptInterruptedException;
 import com.stardust.autojs.runtime.ScriptRuntime;
 import com.stardust.autojs.script.ScriptSource;
 
@@ -61,11 +62,34 @@ public class RunnableScriptExecution extends ScriptExecution.AbstractScriptExecu
     private Object doExecution(ScriptEngine engine) {
         engine.setTag("script", getSource());
         getListener().onStart(this);
-        Object result = engine.execute(getSource());
+        Object result = null;
+        long delay = getConfig().delay;
+        int times = getConfig().loopTimes;
+        if (times == 0) {
+            times = Integer.MAX_VALUE;
+        }
+        long interval = getConfig().interval;
+        sleep(delay);
+        ScriptSource source = getSource();
+        for (int i = 0; i < times; i++) {
+            result = engine.execute(source);
+            sleep(interval);
+        }
         getListener().onSuccess(this, result);
         return result;
     }
 
+    private void sleep(long i) {
+        if (i <= 0) {
+            return;
+        }
+        try {
+            Thread.sleep(i);
+        } catch (InterruptedException e) {
+            throw new ScriptInterruptedException();
+        }
+    }
+
     @Override
     public ScriptEngine getEngine() {
         return mScriptEngine;