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217
app/src/main/java/com/catherine/classloader/OpenResourceActivity.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,217 @@ | ||
| package com.catherine.classloader; | ||
|
|
||
| import android.app.Activity; | ||
| import android.content.Intent; | ||
| import android.content.pm.PackageInfo; | ||
| import android.content.pm.PackageManager; | ||
| import android.os.Bundle; | ||
| import android.os.Process; | ||
| import android.util.Log; | ||
| import android.view.View; | ||
| import android.widget.Button; | ||
| import android.widget.TextView; | ||
|
|
||
| import java.io.File; | ||
| import java.lang.reflect.Constructor; | ||
| import java.lang.reflect.Field; | ||
| import java.lang.reflect.InvocationTargetException; | ||
| import java.lang.reflect.Method; | ||
|
|
||
| /** | ||
| * Created by Catherine on 2017/2/15. | ||
| * Soft-World Inc. | ||
| * catherine919@soft-world.com.tw | ||
| */ | ||
|
|
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| public class OpenResourceActivity extends Activity implements View.OnClickListener { | ||
| private final static String TAG = "OpenResourceActivity"; | ||
| private TextView tv_console; | ||
| private Button bt_call_method, bt_launch_apk; | ||
|
|
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| private Class<?> apkActivity; | ||
| private Class<?> apkUtils; | ||
|
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| @Override | ||
| protected void onCreate(Bundle savedInstanceState) { | ||
| super.onCreate(savedInstanceState); | ||
| setContentView(R.layout.activity_open_resource2); | ||
| tv_console = (TextView) findViewById(R.id.tv_console); | ||
| bt_call_method = (Button) findViewById(R.id.bt_call_method); | ||
| bt_call_method.setOnClickListener(this); | ||
| bt_launch_apk = (Button) findViewById(R.id.bt_launch_apk); | ||
| bt_launch_apk.setOnClickListener(this); | ||
|
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| openApk(MyConfig.apk2); | ||
| } | ||
|
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| @Override | ||
| protected void onDestroy() { | ||
| //Remove the latest loaded-apk | ||
| ((MyApplication) getApplication()).RemoveApk(); | ||
| Log.d(TAG, "onDestroy"); | ||
| Process.killProcess(Process.myPid()); | ||
| super.onDestroy(); | ||
| } | ||
|
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| public void openApk(String fileName) { | ||
| String history = tv_console.getText().toString(); | ||
| tv_console.setText("Loading..." + "\n----\n" + history); | ||
|
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| logClassLoader("start to load apk"); | ||
| ((MyApplication) getApplication()).LoadApk(fileName); | ||
| logClassLoader("apk loaded"); | ||
|
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| //switch apks | ||
| try { | ||
| if (MyConfig.apk1.equals(fileName)) { | ||
| apkActivity = getClassLoader().loadClass(MyConfig.APK1_ACTIVITY_MAIN); | ||
| apkUtils = getClassLoader().loadClass(MyConfig.APK1_UTILS); | ||
|
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| Log.d(TAG, "Load the class of the apk by " + apkActivity.getClassLoader()); | ||
|
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| } else if (MyConfig.apk2.equals(fileName)) { | ||
| apkActivity = getClassLoader().loadClass(MyConfig.APK2_ACTIVITY_MAIN); | ||
| apkUtils = getClassLoader().loadClass(MyConfig.APK2_UTILS); | ||
| } | ||
| history = tv_console.getText().toString(); | ||
| tv_console.setText(getApkInfo(fileName) + "\n----\n" + "Done!" + "\n----\n" + history); | ||
| } catch (Exception e) { | ||
| e.printStackTrace(); | ||
|
|
||
| if (e instanceof ClassNotFoundException) { | ||
| history = tv_console.getText().toString(); | ||
| tv_console.setText("Have you ever put your apk into correct directory?" + "\n----\n" + history); | ||
| } | ||
| } | ||
| } | ||
|
|
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| private void logClassLoader(String msg) { | ||
| ClassLoader oldloader = getClass().getClassLoader(); | ||
| int sum = 0; | ||
| try { | ||
| while (oldloader != null) { | ||
| Log.e(msg + sum, "" + oldloader); | ||
| sum++; | ||
| oldloader = oldloader.getParent(); | ||
| } | ||
| Log.e(msg + sum, "" + oldloader); | ||
| } catch (Exception e) { | ||
| e.printStackTrace(); | ||
| } | ||
| } | ||
|
|
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| public String getApkInfo(String fileName) { | ||
| try { | ||
| String dexPath = null; | ||
| if (getExternalFilesDir(null) != null) { | ||
| dexPath = new File(getExternalFilesDir(null), fileName).getAbsolutePath(); | ||
| } else if (getFilesDir() != null) { | ||
| dexPath = new File(getFilesDir(), fileName).getAbsolutePath(); | ||
| } | ||
|
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| PackageManager pm = getPackageManager(); | ||
| PackageInfo info = pm.getPackageArchiveInfo(dexPath, 0); | ||
|
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| StringBuilder sb = new StringBuilder(); | ||
| sb.append("\n*** Apk info ***\n"); | ||
| sb.append("versionCode:" + info.versionCode); | ||
| sb.append("\nversionName:" + info.versionName); | ||
| sb.append("\n*** Apk info ***\n"); | ||
|
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| return sb.toString(); | ||
| } catch (Exception e) { | ||
| e.printStackTrace(); | ||
| return e.toString(); | ||
| } | ||
| } | ||
|
|
||
| @Override | ||
| public void onClick(View v) { | ||
| switch (v.getId()) { | ||
| case R.id.bt_call_method: | ||
| try { | ||
| //set null as the first parameter of invoke() while invoking a static method. | ||
| //static String getInputStringStatic(String value) | ||
| Method getInputStringStatic = apkUtils.getDeclaredMethod("getInputStringStatic", String.class); | ||
| String returns1 = (String) getInputStringStatic.invoke(null, "Hello, I'm your classLoader"); | ||
| String history = tv_console.getText().toString(); | ||
| tv_console.setText("getInputStringStatic:\t" + returns1 + "\n----\n" + history); | ||
|
|
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| //static int getInputIntStatic(Integer value) | ||
| Method getInputIntStatic = apkUtils.getDeclaredMethod("getInputIntStatic", Integer.class); | ||
| int returns2 = (Integer) getInputIntStatic.invoke(null, 86400); | ||
| history = tv_console.getText().toString(); | ||
| tv_console.setText("getInputIntStatic:\t" + returns2 + "\n----\n" + history); | ||
|
|
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| //static String getStringValueStatic() | ||
| Method getStringValueStatic = apkUtils.getDeclaredMethod("getStringValueStatic"); | ||
| String returns3 = (String) getStringValueStatic.invoke(null); | ||
| history = tv_console.getText().toString(); | ||
| tv_console.setText("getStringValueStatic:\t" + returns3 + "\n----\n" + history); | ||
|
|
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| //static int getIntValueStatic() | ||
| Method getIntValueStatic = apkUtils.getDeclaredMethod("getIntValueStatic"); | ||
| int returns4 = (Integer) getIntValueStatic.invoke(null); | ||
| history = tv_console.getText().toString(); | ||
| tv_console.setText("getIntValueStatic:\t" + returns4 + "\n----\n" + history); | ||
|
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||
|
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| //Get constructor for not-static method | ||
| Constructor<?> cons = apkUtils.getConstructor(); | ||
|
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| //String getStringValue() | ||
| Method getStringValue = apkUtils.getDeclaredMethod("getStringValue"); | ||
| String returns5 = (String) getStringValue.invoke(cons.newInstance()); | ||
| history = tv_console.getText().toString(); | ||
| tv_console.setText("getStringValue:\t" + returns5 + "\n----\n" + history); | ||
|
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| //int getIntValue() | ||
| Method getIntValue = apkUtils.getDeclaredMethod("getIntValue"); | ||
| int returns6 = (Integer) getIntValue.invoke(cons.newInstance()); | ||
| history = tv_console.getText().toString(); | ||
| tv_console.setText("getIntValue:\t" + returns6 + "\n----\n" + history); | ||
|
|
||
| //Fields | ||
| Field myStaticField = apkUtils.getDeclaredField("myStaticField"); | ||
|
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| history = tv_console.getText().toString(); | ||
| tv_console.setText(myStaticField.getName() + ":\t" + myStaticField.get(null) + "\n----\n" + history); | ||
|
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| myStaticField.setAccessible(true);//You can update the field. | ||
| myStaticField.set(null, "new value"); | ||
| myStaticField.setAccessible(false); | ||
|
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| history = tv_console.getText().toString(); | ||
| tv_console.setText(myStaticField.getName() + " updated:\t" + myStaticField.get(null) + "\n----\n" + history); | ||
| } catch (NoSuchMethodException e) { | ||
| e.printStackTrace(); | ||
| } catch (InvocationTargetException e) { | ||
| e.printStackTrace(); | ||
| } catch (IllegalAccessException e) { | ||
| e.printStackTrace(); | ||
| } catch (InstantiationException e) { | ||
| e.printStackTrace(); | ||
| } catch (NullPointerException e) { | ||
| e.printStackTrace(); | ||
|
|
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| String history = tv_console.getText().toString(); | ||
| tv_console.setText("Please load any apk first." + "\n----\n" + history); | ||
| } catch (NoSuchFieldException e) { | ||
| e.printStackTrace(); | ||
| } | ||
| break; | ||
| case R.id.bt_launch_apk: | ||
| try { | ||
| Intent intent = new Intent(); | ||
| intent.setClass(OpenResourceActivity.this, apkActivity); | ||
| startActivity(intent); | ||
| } catch (NullPointerException e) { | ||
| e.printStackTrace(); | ||
|
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| String history = tv_console.getText().toString(); | ||
| tv_console.setText("Please load any apk first." + "\n----\n" + history); | ||
| } | ||
| break; | ||
| } | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,56 @@ | ||
| <?xml version="1.0" encoding="utf-8"?> | ||
| <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" | ||
| android:layout_width="match_parent" | ||
| android:layout_height="match_parent" | ||
| android:background="@android:color/white" | ||
| android:orientation="vertical"> | ||
|
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| <ScrollView | ||
| android:layout_width="match_parent" | ||
| android:layout_height="match_parent" | ||
| android:layout_above="@+id/bt_call_method"> | ||
|
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| <LinearLayout | ||
| android:layout_width="match_parent" | ||
| android:layout_height="match_parent" | ||
| android:orientation="vertical"> | ||
|
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| <TextView | ||
| android:layout_width="match_parent" | ||
| android:layout_height="wrap_content" | ||
| android:text="console:" | ||
| android:textColor="#414141" | ||
| android:textSize="14sp" /> | ||
|
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| <TextView | ||
| android:id="@+id/tv_console" | ||
| android:layout_width="match_parent" | ||
| android:layout_height="match_parent" | ||
| android:textColor="#414141" | ||
| android:textSize="14sp" /> | ||
|
|
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| </LinearLayout> | ||
| </ScrollView> | ||
|
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| <Button | ||
| android:id="@+id/bt_call_method" | ||
| android:layout_width="match_parent" | ||
| android:layout_height="40dp" | ||
| android:layout_above="@+id/bt_launch_apk" | ||
| android:layout_marginTop="1dp" | ||
| android:background="#414141" | ||
| android:text="CALL METHOD" | ||
| android:textColor="@android:color/white" | ||
| android:textSize="16sp" /> | ||
|
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| <Button | ||
| android:id="@+id/bt_launch_apk" | ||
| android:layout_width="match_parent" | ||
| android:layout_height="40dp" | ||
| android:layout_alignParentBottom="true" | ||
| android:layout_marginTop="1dp" | ||
| android:background="#414141" | ||
| android:text="LAUNCH ACTIVITY" | ||
| android:textColor="@android:color/white" | ||
| android:textSize="16sp" /> | ||
| </RelativeLayout> |