//合并
JNIEXPORT void JNICALL Java_com_example_app_1update_utils_BsPatch_patch
  (JNIEnv *env, jclass jcls, jstring oldfile_jstr, jstring newfile_jstr, jstring patchfile_jstr){
	int argc = 4;
	char* oldfile = (char*)(*env)->GetStringUTFChars(env,oldfile_jstr, NULL);
	char* newfile = (char*)(*env)->GetStringUTFChars(env,newfile_jstr, NULL);
	char* patchfile = (char*)(*env)->GetStringUTFChars(env,patchfile_jstr, NULL);

	//参数（第一个参数无效）
	char *argv[4];
	argv[0] = "bspatch";
	argv[1] = oldfile;
	argv[2] = newfile;
	argv[3] = patchfile;

	bspatch_main(argc,argv);

	(*env)->ReleaseStringUTFChars(env,oldfile_jstr, oldfile);
	(*env)->ReleaseStringUTFChars(env,newfile_jstr, newfile);
	(*env)->ReleaseStringUTFChars(env,patchfile_jstr, patchfile);

}

	public class MainActivity extends Activity {
	
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
		findViewById(R.id.btn_update).setOnClickListener(new OnClickListener() {
			
			@Override
			public void onClick(View v) {
				// TODO Auto-generated method stub
				ApkUpdateTask apkUpdateTask=new ApkUpdateTask();
				apkUpdateTask.execute();
			}
		});
	}
	
	class ApkUpdateTask extends AsyncTask<Void, Void, Boolean>{

		@Override
		protected Boolean doInBackground(Void... params) {
			try {
				//1.下载差分包
				Log.d("ccj", "开始下载");
				File patchFile = DownloadUtils.download(Constants.URL_PATCH_DOWNLOAD);
				
				//获取当前应用的apk文件/data/app/app
				String oldfile = ApkUtils.getSourceApkPath(MainActivity.this, getPackageName());
				//2.合并得到最新版本的APK文件
				String newfile = Constants.NEW_APK_PATH;
				String patchfile = patchFile.getAbsolutePath();
				BsPatch.patch(oldfile, newfile, patchfile);
				
				Log.i("ccj", "oldfile:"+oldfile);
				Log.i("ccj", "newfile:"+newfile);
				Log.i("ccj", "patch:"+patchfile);
			} catch (Exception e) {
				e.printStackTrace();
				return false;
			}
			
			return true;
		}
		  
		@Override
		protected void onPostExecute(Boolean result) {
			super.onPostExecute(result);
			Log.d("ccj", "下载完成");
			//3.安装
			if(result){
				Toast.makeText(MainActivity.this, "您正在进行更新", Toast.LENGTH_SHORT).show();
				ApkUtils.installApk(MainActivity.this, Constants.NEW_APK_PATH);
			}
		}
		
	}
	}